aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright (c) 1998-2018,2019 Free Software Foundation, Inc.              *
   3 dnl                                                                          *
   4 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
   5 dnl copy of this software and associated documentation files (the            *
   6 dnl "Software"), to deal in the Software without restriction, including      *
   7 dnl without limitation the rights to use, copy, modify, merge, publish,      *
   8 dnl distribute, distribute with modifications, sublicense, and/or sell       *
   9 dnl copies of the Software, and to permit persons to whom the Software is    *
  10 dnl furnished to do so, subject to the following conditions:                 *
  11 dnl                                                                          *
  12 dnl The above copyright notice and this permission notice shall be included  *
  13 dnl in all copies or substantial portions of the Software.                   *
  14 dnl                                                                          *
  15 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22 dnl                                                                          *
  23 dnl Except as contained in this notice, the name(s) of the above copyright   *
  24 dnl holders shall not be used in advertising or otherwise to promote the     *
  25 dnl sale, use or other dealings in this Software without prior written       *
  26 dnl authorization.                                                           *
  27 dnl***************************************************************************
  28 dnl
  29 dnl Author: Thomas E. Dickey 1995-on
  30 dnl
  31 dnl $Id: aclocal.m4,v 1.885 2019/11/02 20:32:27 tom Exp $
  32 dnl Macros used in NCURSES auto-configuration script.
  33 dnl
  34 dnl These macros are maintained separately from NCURSES.  The copyright on
  35 dnl this file applies to the aggregation of macros and does not affect use of
  36 dnl these macros in other applications.
  37 dnl
  38 dnl See https://invisible-island.net/autoconf/ for additional information.
  39 dnl
  40 dnl ---------------------------------------------------------------------------
  41 dnl ---------------------------------------------------------------------------
  42 dnl AM_LANGINFO_CODESET version: 4 updated: 2015/04/18 08:56:57
  43 dnl -------------------
  44 dnl Inserted as requested by gettext 0.10.40
  45 dnl File from /usr/share/aclocal
  46 dnl codeset.m4
  47 dnl ====================
  48 dnl serial AM1
  49 dnl
  50 dnl From Bruno Haible.
  51 AC_DEFUN([AM_LANGINFO_CODESET],
  52 [
  53 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
  54         [AC_TRY_LINK([#include <langinfo.h>],
  55         [char* cs = nl_langinfo(CODESET);],
  56         am_cv_langinfo_codeset=yes,
  57         am_cv_langinfo_codeset=no)
  58         ])
  59         if test $am_cv_langinfo_codeset = yes; then
  60                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
  61                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  62         fi
  63 ])dnl
  64 dnl ---------------------------------------------------------------------------
  65 dnl CF_ABI_DEFAULTS version: 2 updated: 2015/06/06 13:49:58
  66 dnl ---------------
  67 dnl Provide configure-script defaults for different ncurses ABIs.
  68 AC_DEFUN([CF_ABI_DEFAULTS],[
  69 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
  70 case x$cf_cv_abi_version in
  71 (x[[6789]])
  72         cf_dft_ext_colors=yes
  73         cf_dft_ext_const=yes
  74         cf_dft_ext_mouse=yes
  75         cf_dft_ext_putwin=yes
  76         cf_dft_ext_spfuncs=yes
  77         cf_dft_filter_syms=yes
  78         cf_dft_chtype=uint32_t
  79         cf_dft_mmask_t=uint32_t
  80         cf_dft_interop=yes
  81         cf_dft_tparm_arg=intptr_t
  82         cf_dft_with_lp64=yes
  83         ;;
  84 (*)
  85         cf_dft_ext_colors=no
  86         cf_dft_ext_const=no
  87         cf_dft_ext_mouse=no
  88         cf_dft_ext_putwin=no
  89         cf_dft_ext_spfuncs=no
  90         cf_dft_filter_syms=no
  91         cf_dft_chtype=auto
  92         cf_dft_mmask_t=auto
  93         cf_dft_interop=no
  94         cf_dft_tparm_arg=long
  95         cf_dft_with_lp64=no
  96         ;;
  97 esac
  98 ])dnl
  99 dnl ---------------------------------------------------------------------------
 100 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
 101 dnl ------------------
 102 dnl Conditionally generate script according to whether we're using a given autoconf.
 103 dnl
 104 dnl $1 = version to compare against
 105 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
 106 dnl $3 = code to use if AC_ACVERSION is older than $1.
 107 define([CF_ACVERSION_CHECK],
 108 [
 109 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
 110 ifdef([m4_version_compare],
 111 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
 112 [CF_ACVERSION_COMPARE(
 113 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
 114 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
 115 dnl ---------------------------------------------------------------------------
 116 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
 117 dnl --------------------
 118 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
 119 dnl                      MAJOR2, MINOR2, TERNARY2,
 120 dnl                      PRINTABLE2, not FOUND, FOUND)
 121 define([CF_ACVERSION_COMPARE],
 122 [ifelse(builtin([eval], [$2 < $5]), 1,
 123 [ifelse([$8], , ,[$8])],
 124 [ifelse([$9], , ,[$9])])])dnl
 125 dnl ---------------------------------------------------------------------------
 126 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
 127 dnl -------------------
 128 dnl Construct the list of include-options for the C programs in the Ada95
 129 dnl binding.
 130 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
 131 [
 132 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
 133 if test "$srcdir" != "."; then
 134         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
 135 fi
 136 if test "$GCC" != yes; then
 137         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 138 elif test "$includedir" != "/usr/include"; then
 139         if test "$includedir" = '${prefix}/include' ; then
 140                 if test x$prefix != x/usr ; then
 141                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 142                 fi
 143         else
 144                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 145         fi
 146 fi
 147 AC_SUBST(ACPPFLAGS)
 148 ])dnl
 149 dnl ---------------------------------------------------------------------------
 150 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
 151 dnl ---------------
 152 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
 153 AC_DEFUN([CF_ADD_ADAFLAGS],[
 154         ADAFLAGS="$ADAFLAGS $1"
 155         AC_SUBST(ADAFLAGS)
 156 ])dnl
 157 dnl ---------------------------------------------------------------------------
 158 dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
 159 dnl -------------
 160 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 161 dnl The second parameter if given makes this macro verbose.
 162 dnl
 163 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 164 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 165 dnl confused by the quotes (which require backslashes to keep them usable).
 166 AC_DEFUN([CF_ADD_CFLAGS],
 167 [
 168 cf_fix_cppflags=no
 169 cf_new_cflags=
 170 cf_new_cppflags=
 171 cf_new_extra_cppflags=
 172
 173 for cf_add_cflags in $1
 174 do
 175 case $cf_fix_cppflags in
 176 (no)
 177         case $cf_add_cflags in
 178         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 179                 case $cf_add_cflags in
 180                 (-D*)
 181                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 182
 183                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 184                                 && test -z "${cf_tst_cflags}" \
 185                                 && cf_fix_cppflags=yes
 186
 187                         if test $cf_fix_cppflags = yes ; then
 188                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 189                                 continue
 190                         elif test "${cf_tst_cflags}" = "\"'" ; then
 191                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 192                                 continue
 193                         fi
 194                         ;;
 195                 esac
 196                 case "$CPPFLAGS" in
 197                 (*$cf_add_cflags)
 198                         ;;
 199                 (*)
 200                         case $cf_add_cflags in
 201                         (-D*)
 202                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 203                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 204                                 ;;
 205                         esac
 206                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 207                         ;;
 208                 esac
 209                 ;;
 210         (*)
 211                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 212                 ;;
 213         esac
 214         ;;
 215 (yes)
 216         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 217
 218         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
 219
 220         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 221                 && test -z "${cf_tst_cflags}" \
 222                 && cf_fix_cppflags=no
 223         ;;
 224 esac
 225 done
 226
 227 if test -n "$cf_new_cflags" ; then
 228         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 229         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 230 fi
 231
 232 if test -n "$cf_new_cppflags" ; then
 233         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 234         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 235 fi
 236
 237 if test -n "$cf_new_extra_cppflags" ; then
 238         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 239         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 240 fi
 241
 242 AC_SUBST(EXTRA_CPPFLAGS)
 243
 244 ])dnl
 245 dnl ---------------------------------------------------------------------------
 246 dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
 247 dnl -------------
 248 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 249 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 250 dnl but old versions (and some misinstalled ones) need that.  To make things
 251 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 252 dnl the include-path).
 253 AC_DEFUN([CF_ADD_INCDIR],
 254 [
 255 if test -n "$1" ; then
 256   for cf_add_incdir in $1
 257   do
 258         while test $cf_add_incdir != /usr/include
 259         do
 260           if test -d $cf_add_incdir
 261           then
 262                 cf_have_incdir=no
 263                 if test -n "$CFLAGS$CPPFLAGS" ; then
 264                   # a loop is needed to ensure we can add subdirs of existing dirs
 265                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 266                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 267                           cf_have_incdir=yes; break
 268                         fi
 269                   done
 270                 fi
 271
 272                 if test "$cf_have_incdir" = no ; then
 273                   if test "$cf_add_incdir" = /usr/local/include ; then
 274                         if test "$GCC" = yes
 275                         then
 276                           cf_save_CPPFLAGS=$CPPFLAGS
 277                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 278                           AC_TRY_COMPILE([#include <stdio.h>],
 279                                   [printf("Hello")],
 280                                   [],
 281                                   [cf_have_incdir=yes])
 282                           CPPFLAGS=$cf_save_CPPFLAGS
 283                         fi
 284                   fi
 285                 fi
 286
 287                 if test "$cf_have_incdir" = no ; then
 288                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 289                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 290
 291                   cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
 292                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 293                   cf_add_incdir="$cf_top_incdir"
 294                 else
 295                   break
 296                 fi
 297           else
 298                 break
 299           fi
 300         done
 301   done
 302 fi
 303 ])dnl
 304 dnl ---------------------------------------------------------------------------
 305 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 306 dnl ----------
 307 dnl Add a library, used to enforce consistency.
 308 dnl
 309 dnl $1 = library to add, without the "-l"
 310 dnl $2 = variable to update (default $LIBS)
 311 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 312 dnl ---------------------------------------------------------------------------
 313 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
 314 dnl -------------
 315 dnl     Adds to the library-path
 316 dnl
 317 dnl     Some machines have trouble with multiple -L options.
 318 dnl
 319 dnl $1 is the (list of) directory(s) to add
 320 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 321 dnl
 322 AC_DEFUN([CF_ADD_LIBDIR],
 323 [
 324 if test -n "$1" ; then
 325         for cf_add_libdir in $1
 326         do
 327                 if test $cf_add_libdir = /usr/lib ; then
 328                         :
 329                 elif test -d $cf_add_libdir
 330                 then
 331                         cf_have_libdir=no
 332                         if test -n "$LDFLAGS$LIBS" ; then
 333                                 # a loop is needed to ensure we can add subdirs of existing dirs
 334                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 335                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 336                                                 cf_have_libdir=yes; break
 337                                         fi
 338                                 done
 339                         fi
 340                         if test "$cf_have_libdir" = no ; then
 341                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 342                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 343                         fi
 344                 fi
 345         done
 346 fi
 347 ])dnl
 348 dnl ---------------------------------------------------------------------------
 349 dnl CF_ADD_LIBS version: 2 updated: 2014/07/13 14:33:27
 350 dnl -----------
 351 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 352 dnl prepended to an existing list, since their dependencies are assumed to
 353 dnl already exist in the list.
 354 dnl
 355 dnl $1 = libraries to add, with the "-l", etc.
 356 dnl $2 = variable to update (default $LIBS)
 357 AC_DEFUN([CF_ADD_LIBS],[
 358 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 359 # reverse order
 360 cf_add_0lib=
 361 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 362 # filter duplicates
 363 for cf_add_1lib in $cf_add_0lib; do
 364         for cf_add_2lib in $cf_add_libs; do
 365                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 366                         cf_add_1lib=
 367                         break
 368                 fi
 369         done
 370         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 371 done
 372 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 373 ])dnl
 374 dnl ---------------------------------------------------------------------------
 375 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
 376 dnl ------------------
 377 dnl Append to a search-list for a nonstandard header/lib-file
 378 dnl     $1 = the variable to return as result
 379 dnl     $2 = the package name
 380 dnl     $3 = the subdirectory, e.g., bin, include or lib
 381 dnl $4 = the directory under which we will test for subdirectories
 382 dnl $5 = a directory that we do not want $4 to match
 383 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 384 [
 385 test "x$4" != "x$5" && \
 386 test -d "$4" && \
 387 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
 388         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 389         test -d $4/$3 &&          $1="[$]$1 $4/$3"
 390         test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
 391         test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
 392         test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
 393         test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
 394 }
 395 ])dnl
 396 dnl ---------------------------------------------------------------------------
 397 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 398 dnl --------------
 399 dnl use this macro for appending text without introducing an extra blank at
 400 dnl the beginning
 401 define([CF_APPEND_TEXT],
 402 [
 403         test -n "[$]$1" && $1="[$]$1 "
 404         $1="[$]{$1}$2"
 405 ])dnl
 406 dnl ---------------------------------------------------------------------------
 407 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 408 dnl --------------
 409 dnl Allow user to disable a normally-on option.
 410 AC_DEFUN([CF_ARG_DISABLE],
 411 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 412 dnl ---------------------------------------------------------------------------
 413 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 414 dnl -------------
 415 dnl Allow user to enable a normally-off option.
 416 AC_DEFUN([CF_ARG_ENABLE],
 417 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 418 dnl ---------------------------------------------------------------------------
 419 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 420 dnl -------------
 421 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 422 dnl values.
 423 dnl
 424 dnl Parameters:
 425 dnl $1 = option name
 426 dnl $2 = help-string
 427 dnl $3 = action to perform if option is not default
 428 dnl $4 = action if perform if option is default
 429 dnl $5 = default option value (either 'yes' or 'no')
 430 AC_DEFUN([CF_ARG_OPTION],
 431 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 432         if test "$enableval" != "$5" ; then
 433 ifelse([$3],,[    :]dnl
 434 ,[    $3]) ifelse([$4],,,[
 435         else
 436                 $4])
 437         fi],[enableval=$5 ifelse([$4],,,[
 438         $4
 439 ])dnl
 440 ])])dnl
 441 dnl ---------------------------------------------------------------------------
 442 dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
 443 dnl -----------
 444 dnl Check for suitable "ar" (archiver) options for updating an archive.
 445 dnl
 446 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 447 dnl as well as a workaround for breakage of make's archive rules by the GNU
 448 dnl binutils "ar" program.
 449 AC_DEFUN([CF_AR_FLAGS],[
 450 AC_REQUIRE([CF_PROG_AR])
 451
 452 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 453         cf_cv_ar_flags=unknown
 454         for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 455         do
 456
 457                 # check if $ARFLAGS already contains this choice
 458                 if test "x$ARFLAGS" != "x" ; then
 459                         cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 460                         if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 461                                 cf_cv_ar_flags=
 462                                 break
 463                         fi
 464                 fi
 465
 466                 rm -f conftest.$ac_cv_objext
 467                 rm -f conftest.a
 468
 469                 cat >conftest.$ac_ext <<EOF
 470 #line __oline__ "configure"
 471 int     testdata[[3]] = { 123, 456, 789 };
 472 EOF
 473                 if AC_TRY_EVAL(ac_compile) ; then
 474                         echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 475                         $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
 476                         if test -f conftest.a ; then
 477                                 cf_cv_ar_flags=$cf_ar_flags
 478                                 break
 479                         fi
 480                 else
 481                         CF_VERBOSE(cannot compile test-program)
 482                         break
 483                 fi
 484         done
 485         rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
 486 ])
 487
 488 if test -n "$ARFLAGS" ; then
 489         if test -n "$cf_cv_ar_flags" ; then
 490                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 491         fi
 492 else
 493         ARFLAGS=$cf_cv_ar_flags
 494 fi
 495
 496 AC_SUBST(ARFLAGS)
 497 ])
 498 dnl ---------------------------------------------------------------------------
 499 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
 500 dnl -----------------
 501 dnl Check if awk can handle big strings using printf.  Some older versions of
 502 dnl awk choke on large strings passed via "%s".
 503 dnl
 504 dnl $1 = desired string size
 505 dnl $2 = variable to set with result
 506 AC_DEFUN([CF_AWK_BIG_PRINTF],
 507 [
 508         case x$AWK in
 509         (x)
 510                 eval $2=no
 511                 ;;
 512         (*)
 513                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
 514                         | $AWK '{ printf "%d\n", length([$]0); }' 2>/dev/null | $AWK 'BEGIN { eqls=0; recs=0; } { recs++; if ([$]0 == 12000) eqls++; } END { if (recs != 1 || eqls != 1) exit 1; }' 2>/dev/null >/dev/null ) ; then
 515                         eval $2=yes
 516                 else
 517                         eval $2=no
 518                 fi
 519                 ;;
 520         esac
 521 ])dnl
 522 dnl ---------------------------------------------------------------------------
 523 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
 524 dnl ------------
 525 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
 526 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
 527 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
 528 dnl
 529 dnl Treat the configuration-variable specially here, since we're directly
 530 dnl substituting its value (i.e., 1/0).
 531 dnl
 532 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
 533 AC_DEFUN([CF_BOOL_DECL],
 534 [
 535 AC_MSG_CHECKING(if we should include stdbool.h)
 536
 537 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
 538         AC_TRY_COMPILE([],[bool foo = false],
 539                 [cf_cv_header_stdbool_h=0],
 540                 [AC_TRY_COMPILE([
 541 #ifndef __BEOS__
 542 #include <stdbool.h>
 543 #endif
 544 ],[bool foo = false],
 545                         [cf_cv_header_stdbool_h=1],
 546                         [cf_cv_header_stdbool_h=0])])])
 547
 548 if test "$cf_cv_header_stdbool_h" = 1
 549 then    AC_MSG_RESULT(yes)
 550 else    AC_MSG_RESULT(no)
 551 fi
 552
 553 AC_MSG_CHECKING([for builtin bool type])
 554
 555 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
 556         AC_TRY_COMPILE([
 557 #include <stdio.h>
 558 #include <sys/types.h>
 559 ],[bool x = false],
 560                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
 561                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
 562         ])
 563
 564 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
 565 then    AC_MSG_RESULT(yes)
 566 else    AC_MSG_RESULT(no)
 567 fi
 568 ])dnl
 569 dnl ---------------------------------------------------------------------------
 570 dnl CF_BOOL_SIZE version: 15 updated: 2017/01/21 11:06:25
 571 dnl ------------
 572 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
 573 dnl Don't bother looking for bool.h, since it's been deprecated.
 574 dnl
 575 dnl If the current compiler is C rather than C++, we get the bool definition
 576 dnl from <stdbool.h>.
 577 AC_DEFUN([CF_BOOL_SIZE],
 578 [
 579 AC_MSG_CHECKING([for size of bool])
 580 AC_CACHE_VAL(cf_cv_type_of_bool,[
 581         rm -f cf_test.out
 582         AC_TRY_RUN([
 583 #include <stdlib.h>
 584 #include <stdio.h>
 585
 586 #if defined(__cplusplus)
 587
 588 #ifdef HAVE_GXX_BUILTIN_H
 589 #include <g++/builtin.h>
 590 #elif HAVE_GPP_BUILTIN_H
 591 #include <gpp/builtin.h>
 592 #elif HAVE_BUILTIN_H
 593 #include <builtin.h>
 594 #endif
 595
 596 #else
 597
 598 #if $cf_cv_header_stdbool_h
 599 #include <stdbool.h>
 600 #endif
 601
 602 #endif
 603
 604 int main(void)
 605 {
 606         FILE *fp = fopen("cf_test.out", "w");
 607         if (fp != 0) {
 608                 bool x = true;
 609                 if ((bool)(-x) >= 0)
 610                         fputs("unsigned ", fp);
 611                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
 612                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
 613                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
 614                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
 615                 fclose(fp);
 616         }
 617         ${cf_cv_main_return:-return}(0);
 618 }
 619                 ],
 620                 [cf_cv_type_of_bool=`cat cf_test.out`
 621                  if test -z "$cf_cv_type_of_bool"; then
 622                    cf_cv_type_of_bool=unknown
 623                  fi],
 624                 [cf_cv_type_of_bool=unknown],
 625                 [cf_cv_type_of_bool=unknown])
 626         ])
 627         rm -f cf_test.out
 628 AC_MSG_RESULT($cf_cv_type_of_bool)
 629 if test "$cf_cv_type_of_bool" = unknown ; then
 630         case .$NCURSES_BOOL in
 631         (.auto|.) NCURSES_BOOL=unsigned;;
 632         esac
 633         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
 634         cf_cv_type_of_bool=$NCURSES_BOOL
 635 fi
 636 ])dnl
 637 dnl ---------------------------------------------------------------------------
 638 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
 639 dnl -----------
 640 dnl If we're cross-compiling, allow the user to override the tools and their
 641 dnl options.  The configure script is oriented toward identifying the host
 642 dnl compiler, etc., but we need a build compiler to generate parts of the
 643 dnl source.
 644 dnl
 645 dnl $1 = default for $CPPFLAGS
 646 dnl $2 = default for $LIBS
 647 AC_DEFUN([CF_BUILD_CC],[
 648 CF_ACVERSION_CHECK(2.52,,
 649         [AC_REQUIRE([CF_PROG_EXT])])
 650 if test "$cross_compiling" = yes ; then
 651
 652         # defaults that we might want to override
 653         : ${BUILD_CFLAGS:=''}
 654         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 655         : ${BUILD_LDFLAGS:=''}
 656         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 657         : ${BUILD_EXEEXT:='$x'}
 658         : ${BUILD_OBJEXT:='o'}
 659
 660         AC_ARG_WITH(build-cc,
 661                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 662                 [BUILD_CC="$withval"],
 663                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 664         AC_MSG_CHECKING(for native build C compiler)
 665         AC_MSG_RESULT($BUILD_CC)
 666
 667         AC_MSG_CHECKING(for native build C preprocessor)
 668         AC_ARG_WITH(build-cpp,
 669                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 670                 [BUILD_CPP="$withval"],
 671                 [BUILD_CPP='${BUILD_CC} -E'])
 672         AC_MSG_RESULT($BUILD_CPP)
 673
 674         AC_MSG_CHECKING(for native build C flags)
 675         AC_ARG_WITH(build-cflags,
 676                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 677                 [BUILD_CFLAGS="$withval"])
 678         AC_MSG_RESULT($BUILD_CFLAGS)
 679
 680         AC_MSG_CHECKING(for native build C preprocessor-flags)
 681         AC_ARG_WITH(build-cppflags,
 682                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 683                 [BUILD_CPPFLAGS="$withval"])
 684         AC_MSG_RESULT($BUILD_CPPFLAGS)
 685
 686         AC_MSG_CHECKING(for native build linker-flags)
 687         AC_ARG_WITH(build-ldflags,
 688                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 689                 [BUILD_LDFLAGS="$withval"])
 690         AC_MSG_RESULT($BUILD_LDFLAGS)
 691
 692         AC_MSG_CHECKING(for native build linker-libraries)
 693         AC_ARG_WITH(build-libs,
 694                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 695                 [BUILD_LIBS="$withval"])
 696         AC_MSG_RESULT($BUILD_LIBS)
 697
 698         # this assumes we're on Unix.
 699         BUILD_EXEEXT=
 700         BUILD_OBJEXT=o
 701
 702         : ${BUILD_CC:='${CC}'}
 703
 704         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
 705                 AC_MSG_ERROR([Cross-build requires two compilers.
 706 Use --with-build-cc to specify the native compiler.])
 707         fi
 708
 709 else
 710         : ${BUILD_CC:='${CC}'}
 711         : ${BUILD_CPP:='${CPP}'}
 712         : ${BUILD_CFLAGS:='${CFLAGS}'}
 713         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 714         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 715         : ${BUILD_LIBS:='${LIBS}'}
 716         : ${BUILD_EXEEXT:='$x'}
 717         : ${BUILD_OBJEXT:='o'}
 718 fi
 719
 720 AC_SUBST(BUILD_CC)
 721 AC_SUBST(BUILD_CPP)
 722 AC_SUBST(BUILD_CFLAGS)
 723 AC_SUBST(BUILD_CPPFLAGS)
 724 AC_SUBST(BUILD_LDFLAGS)
 725 AC_SUBST(BUILD_LIBS)
 726 AC_SUBST(BUILD_EXEEXT)
 727 AC_SUBST(BUILD_OBJEXT)
 728 ])dnl
 729 dnl ---------------------------------------------------------------------------
 730 dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
 731 dnl ---------------
 732 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 733 dnl into CC.  This will not help with broken scripts that wrap the compiler
 734 dnl with options, but eliminates a more common category of user confusion.
 735 dnl
 736 dnl In particular, it addresses the problem of being able to run the C
 737 dnl preprocessor in a consistent manner.
 738 dnl
 739 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 740 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 741 dnl outweighs that limitation.
 742 AC_DEFUN([CF_CC_ENV_FLAGS],
 743 [
 744 # This should have been defined by AC_PROG_CC
 745 : ${CC:=cc}
 746
 747 AC_MSG_CHECKING(\$CFLAGS variable)
 748 case "x$CFLAGS" in
 749 (*-[[IUD]]*)
 750         AC_MSG_RESULT(broken)
 751         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 752         cf_flags="$CFLAGS"
 753         CFLAGS=
 754         for cf_arg in $cf_flags
 755         do
 756                 CF_ADD_CFLAGS($cf_arg)
 757         done
 758         ;;
 759 (*)
 760         AC_MSG_RESULT(ok)
 761         ;;
 762 esac
 763
 764 AC_MSG_CHECKING(\$CC variable)
 765 case "$CC" in
 766 (*[[\ \ ]]-*)
 767         AC_MSG_RESULT(broken)
 768         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 769         # humor him...
 770         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 771         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 772         CC="$cf_prog"
 773         for cf_arg in $cf_flags
 774         do
 775                 case "x$cf_arg" in
 776                 (x-[[IUDfgOW]]*)
 777                         CF_ADD_CFLAGS($cf_arg)
 778                         ;;
 779                 (*)
 780                         CC="$CC $cf_arg"
 781                         ;;
 782                 esac
 783         done
 784         CF_VERBOSE(resulting CC: '$CC')
 785         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 786         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 787         ;;
 788 (*)
 789         AC_MSG_RESULT(ok)
 790         ;;
 791 esac
 792 ])dnl
 793 dnl ---------------------------------------------------------------------------
 794 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
 795 dnl ---------------
 796 dnl Determine the default configuration into which we'll install ncurses.  This
 797 dnl can be overridden by the user's command-line options.  There's two items to
 798 dnl look for:
 799 dnl     1. the prefix (e.g., /usr)
 800 dnl     2. the header files (e.g., /usr/include/ncurses)
 801 dnl We'll look for a previous installation of ncurses and use the same defaults.
 802 dnl
 803 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 804 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 805 dnl programs from a vendor's.
 806 AC_DEFUN([CF_CFG_DEFAULTS],
 807 [
 808 AC_MSG_CHECKING(for prefix)
 809 if test "x$prefix" = "xNONE" ; then
 810         case "$cf_cv_system_name" in
 811                 # non-vendor systems don't have a conflict
 812         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 813                 prefix=/usr
 814                 ;;
 815         (*)     prefix=$ac_default_prefix
 816                 ;;
 817         esac
 818 fi
 819 AC_MSG_RESULT($prefix)
 820
 821 if test "x$prefix" = "xNONE" ; then
 822 AC_MSG_CHECKING(for default include-directory)
 823 test -n "$verbose" && echo 1>&AC_FD_MSG
 824 for cf_symbol in \
 825         $includedir \
 826         $includedir/ncurses \
 827         $prefix/include \
 828         $prefix/include/ncurses \
 829         /usr/local/include \
 830         /usr/local/include/ncurses \
 831         /usr/include \
 832         /usr/include/ncurses
 833 do
 834         cf_dir=`eval echo $cf_symbol`
 835         if test -f $cf_dir/curses.h ; then
 836         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
 837                 includedir="$cf_symbol"
 838                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
 839                 break
 840         fi
 841         fi
 842         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 843 done
 844 AC_MSG_RESULT($includedir)
 845 fi
 846 ])dnl
 847 dnl ---------------------------------------------------------------------------
 848 dnl CF_CGETENT version: 6 updated: 2017/01/21 11:06:25
 849 dnl ----------
 850 dnl Check if the terminal-capability database functions are available.  If not,
 851 dnl ncurses has a much-reduced version.
 852 AC_DEFUN([CF_CGETENT],[
 853 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
 854 AC_TRY_LINK([
 855 #include <stdlib.h>],[
 856         char temp[128];
 857         char *buf = temp;
 858         char *db_array = temp;
 859         cgetent(&buf, &db_array, "vt100");
 860         cgetcap(buf, "tc", '=');
 861         cgetmatch(buf, "tc");
 862         ],
 863         [cf_cv_cgetent=yes],
 864         [cf_cv_cgetent=no])
 865 ])
 866
 867 if test "$cf_cv_cgetent" = yes
 868 then
 869         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
 870 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
 871 AC_TRY_LINK([
 872 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
 873 #include <stdlib.h>],[
 874         char temp[128];
 875         char *buf = temp;
 876 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
 877         const char *db_array = temp;
 878         cgetent(&buf, &db_array, "vt100");
 879 #endif
 880         cgetcap(buf, "tc", '=');
 881         cgetmatch(buf, "tc");
 882         ],
 883         [cf_cv_cgetent_const=yes],
 884         [cf_cv_cgetent_const=no])
 885 ])
 886         if test "$cf_cv_cgetent_const" = yes
 887         then
 888                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
 889         fi
 890 fi
 891 ])dnl
 892 dnl ---------------------------------------------------------------------------
 893 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
 894 dnl --------------
 895 dnl Check if we're accidentally using a cache from a different machine.
 896 dnl Derive the system name, as a check for reusing the autoconf cache.
 897 dnl
 898 dnl If we've packaged config.guess and config.sub, run that (since it does a
 899 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 900 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 901 dnl which is useful in cross-compiles.
 902 dnl
 903 dnl Note: we would use $ac_config_sub, but that is one of the places where
 904 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 905 AC_DEFUN([CF_CHECK_CACHE],
 906 [
 907 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
 908         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 909         system_name="$host_os"
 910 else
 911         system_name="`(uname -s -r) 2>/dev/null`"
 912         if test -z "$system_name" ; then
 913                 system_name="`(hostname) 2>/dev/null`"
 914         fi
 915 fi
 916 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 917 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 918
 919 test -z "$system_name" && system_name="$cf_cv_system_name"
 920 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 921
 922 if test ".$system_name" != ".$cf_cv_system_name" ; then
 923         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 924         AC_MSG_ERROR("Please remove config.cache and try again.")
 925 fi
 926 ])dnl
 927 dnl ---------------------------------------------------------------------------
 928 dnl CF_CHECK_ENVIRON version: 3 updated: 2010/05/26 16:44:57
 929 dnl ----------------
 930 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
 931 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
 932 dnl
 933 dnl $1 = the name to check
 934 dnl $2 = the assumed type
 935 AC_DEFUN([CF_CHECK_ENVIRON],
 936 [
 937 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
 938     AC_TRY_COMPILE([
 939 #ifdef HAVE_STDLIB_H
 940 #include <stdlib.h>
 941 #endif
 942 #include <unistd.h> ],
 943     ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
 944     [cf_cv_dcl_$1=yes],
 945     [cf_cv_dcl_$1=no])
 946 ])
 947
 948 if test "$cf_cv_dcl_$1" = no ; then
 949     CF_UPPER(cf_result,decl_$1)
 950     AC_DEFINE_UNQUOTED($cf_result)
 951 fi
 952
 953 # It's possible (for near-UNIX clones) that the data doesn't exist
 954 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
 955 ])dnl
 956 dnl ---------------------------------------------------------------------------
 957 dnl CF_CHECK_ERRNO version: 12 updated: 2015/04/18 08:56:57
 958 dnl --------------
 959 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
 960 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
 961 dnl ourselves.
 962 dnl
 963 dnl $1 = the name to check
 964 dnl $2 = the assumed type
 965 AC_DEFUN([CF_CHECK_ERRNO],
 966 [
 967 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
 968         AC_TRY_COMPILE([
 969 #ifdef HAVE_STDLIB_H
 970 #include <stdlib.h>
 971 #endif
 972 #include <stdio.h>
 973 #include <sys/types.h>
 974 #include <errno.h> ],
 975         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
 976         [cf_cv_dcl_$1=yes],
 977         [cf_cv_dcl_$1=no])
 978 ])
 979
 980 if test "$cf_cv_dcl_$1" = no ; then
 981         CF_UPPER(cf_result,decl_$1)
 982         AC_DEFINE_UNQUOTED($cf_result)
 983 fi
 984
 985 # It's possible (for near-UNIX clones) that the data doesn't exist
 986 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
 987 ])dnl
 988 dnl ---------------------------------------------------------------------------
 989 dnl CF_CHECK_EXTERN_DATA version: 4 updated: 2015/04/18 08:56:57
 990 dnl --------------------
 991 dnl Check for existence of external data in the current set of libraries.  If
 992 dnl we can modify it, it's real enough.
 993 dnl $1 = the name to check
 994 dnl $2 = its type
 995 AC_DEFUN([CF_CHECK_EXTERN_DATA],
 996 [
 997 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
 998         AC_TRY_LINK([
 999 #undef $1
1000 extern $2 $1;
1001 ],
1002         [$1 = 2],
1003         [cf_cv_have_$1=yes],
1004         [cf_cv_have_$1=no])
1005 ])
1006
1007 if test "$cf_cv_have_$1" = yes ; then
1008         CF_UPPER(cf_result,have_$1)
1009         AC_DEFINE_UNQUOTED($cf_result)
1010 fi
1011
1012 ])dnl
1013 dnl ---------------------------------------------------------------------------
1014 dnl CF_CHECK_GETENV version: 1 updated: 2019/06/23 15:28:15
1015 dnl ---------------
1016 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1017 dnl discard the previous pointer when returning a new one.
1018 AC_DEFUN([CF_CHECK_GETENV],
1019 [
1020 AC_REQUIRE([CF_CHECK_ENVIRON])
1021 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1022 AC_CHECK_FUNCS( putenv setenv strdup )
1023 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1024 AC_TRY_RUN([
1025 #include <stdlib.h>
1026 #include <unistd.h>
1027 #include <stdio.h>
1028 #include <string.h>
1029 #include <sys/types.h>
1030
1031 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1032 extern char **environ;  /* POSIX, but some systems are not... */
1033 #endif
1034
1035 #if defined(HAVE_STRDUP)
1036 #define str_alloc(s) strdup(s)
1037 #else
1038 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1039 #endif
1040
1041 static void set_value(const char *name, const char *value)
1042 {
1043 #if defined(HAVE_SETENV)
1044         setenv(name, value, 1);
1045 #elif defined(HAVE_PUTENV)
1046         char buffer[1024];
1047         sprintf(buffer, "%s=%s", name, value);
1048         putenv(str_alloc(buffer));
1049 #else
1050 #error neither putenv/setenv found
1051 #endif
1052 }
1053 int main(void)
1054 {
1055         int pass;
1056         size_t numenv, limit, j;
1057         char **mynames;
1058         char **myvalues;
1059         char **mypointer;
1060         char *equals;
1061         for (numenv = 0; environ[numenv]; ++numenv) ;
1062         limit = numenv + 10;
1063         mynames = (char **) calloc(limit + 1, sizeof(char *));
1064         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1065         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1066 #if defined(HAVE_ENVIRON)
1067         for (j = 0; environ[j]; ++j) {
1068                 mynames[j] = str_alloc(environ[j]);
1069                 equals = strchr(mynames[j], '=');
1070                 if (equals != 0) {
1071                         *equals++ = '\0';
1072                         myvalues[j] = str_alloc(equals);
1073                 } else {
1074                         myvalues[j] = str_alloc("");
1075                 }
1076         }
1077 #endif
1078         for (j = numenv; j < limit; ++j) {
1079                 char name[80];
1080                 char value[80];
1081                 size_t found;
1082                 size_t k = 0;
1083                 do {
1084                         size_t jk;
1085                         found = 0;
1086                         sprintf(name, "TERM%lu", (unsigned long) k);
1087                         for (jk = 0; jk < j; ++jk) {
1088                                 if (!strcmp(name, mynames[jk])) {
1089                                         found = 1;
1090                                         ++k;
1091                                         break;
1092                                 }
1093                         }
1094                 } while (found);
1095                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1096                 set_value(name, value);
1097                 mynames[j] = str_alloc(name);
1098                 myvalues[j] = str_alloc(value);
1099         }
1100         for (pass = 0; pass < 3; ++pass) {
1101                 for (j = 0; j < limit; ++j) {
1102                         char *value = getenv(mynames[j]);
1103                         if (pass) {
1104                                 if (value == 0) {
1105                                         fprintf(stderr, "getenv returned null for %s\n", mynames[j]);
1106                                         ${cf_cv_main_return:-return}(1);
1107                                 } else if (value != mypointer[j]) {
1108                                         fprintf(stderr, "getenv returned different pointer for %s\n", mynames[j]);
1109                                         ${cf_cv_main_return:-return}(1);
1110                                 } else if (strcmp(value, myvalues[j])) {
1111                                         fprintf(stderr, "getenv returned different value for %s\n", mynames[j]);
1112                                         ${cf_cv_main_return:-return}(1);
1113                                 }
1114                         } else {
1115                                 size_t k;
1116                                 mypointer[j] = value;
1117                                 for (k = 0; k < j; ++k) {
1118                                         if (mypointer[j] == mypointer[k]) {
1119                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\n", mynames[j], mynames[k]);
1120                                                 ${cf_cv_main_return:-return}(1);
1121                                         }
1122                                 }
1123                         }
1124                 }
1125         }
1126         ${cf_cv_main_return:-return}(0);
1127 }
1128 ],
1129 [cf_cv_consistent_getenv=yes],
1130 [cf_cv_consistent_getenv=no],
1131 [cf_cv_consistent_getenv=unknown])
1132 ])
1133
1134 if test "x$cf_cv_consistent_getenv" = xno
1135 then
1136         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1137 fi
1138 ])dnl
1139 dnl ---------------------------------------------------------------------------
1140 dnl CF_CHECK_GNAT_VERSION version: 1 updated: 2019/09/21 18:08:42
1141 dnl ---------------------
1142 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1143 [
1144 AC_REQUIRE([CF_GNAT_VERSION])
1145 case $cf_gnat_version in
1146 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
1147         cf_cv_prog_gnat_correct=yes
1148         ;;
1149 (*)
1150         AC_MSG_WARN(Unsupported GNAT version $cf_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1151         cf_cv_prog_gnat_correct=no
1152         ;;
1153 esac
1154 ])
1155 dnl ---------------------------------------------------------------------------
1156 dnl CF_CHECK_GPM_WGETCH version: 3 updated: 2017/01/21 11:06:25
1157 dnl -------------------
1158 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1159 dnl is not "weak" - warn about this because it can create problems linking
1160 dnl applications with ncurses.
1161 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1162 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1163
1164 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1165 cf_cv_check_gpm_wgetch=unknown
1166 if test "$cross_compiling" != yes ; then
1167
1168 cat >conftest.$ac_ext <<CF_EOF
1169 #include <gpm.h>
1170 int main(void)
1171 {
1172         Gpm_Wgetch();
1173         ${cf_cv_main_return:-return}(0);
1174 }
1175 CF_EOF
1176
1177         cf_save_LIBS="$LIBS"
1178         # This only works if we can look at the symbol table.  If a shared
1179         # library is stripped for install, we cannot use that.  So we're forced
1180         # to rely on the static library, noting that some packagers may not
1181         # include it.
1182         LIBS="-static -lgpm -dynamic $LIBS"
1183         if AC_TRY_EVAL(ac_compile) ; then
1184                 if AC_TRY_EVAL(ac_link) ; then
1185                         cf_cv_check_gpm_wgetch=`nm conftest$ac_exeext | egrep '\<wgetch\>' | egrep '\<[[vVwW]]\>'`
1186                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1187                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1188                 fi
1189         fi
1190         rm -rf conftest*
1191         LIBS="$cf_save_LIBS"
1192 fi
1193 ])
1194
1195 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1196         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1197 fi
1198 ])])dnl
1199 dnl ---------------------------------------------------------------------------
1200 dnl CF_CHECK_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
1201 dnl ------------------------
1202 dnl Show the version of libtool
1203 dnl
1204 dnl Save the version in a cache variable - this is not entirely a good thing,
1205 dnl but the version string from libtool is very ugly, and for bug reports it
1206 dnl might be useful to have the original string.
1207 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1208 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1209 then
1210         AC_MSG_CHECKING(version of $LIBTOOL)
1211         CF_LIBTOOL_VERSION
1212         AC_MSG_RESULT($cf_cv_libtool_version)
1213         if test -z "$cf_cv_libtool_version" ; then
1214                 AC_MSG_ERROR(This is not GNU libtool)
1215         fi
1216 else
1217         AC_MSG_ERROR(GNU libtool has not been found)
1218 fi
1219 ])dnl
1220 dnl ---------------------------------------------------------------------------
1221 dnl CF_CHECK_WCHAR_H version: 2 updated: 2017/01/21 11:06:25
1222 dnl ----------------
1223 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1224 AC_DEFUN([CF_CHECK_WCHAR_H],[
1225 AC_CHECK_HEADERS( \
1226 wchar.h \
1227 wctype.h \
1228 )
1229 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1230 AC_TRY_COMPILE(
1231 [
1232 #include <stdlib.h>
1233 #ifdef HAVE_WCHAR_H
1234 #include <wchar.h>
1235 #endif
1236 #ifdef HAVE_WCTYPE_H
1237 #include <wctype.h>
1238 #endif
1239 ],[
1240         wint_t foo = 0;
1241         int bar = iswpunct(foo)],
1242         [cf_cv_wchar_h_okay=yes],
1243         [cf_cv_wchar_h_okay=no])])
1244
1245 if test $cf_cv_wchar_h_okay = no
1246 then
1247         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1248 fi
1249 ])dnl
1250 dnl ---------------------------------------------------------------------------
1251 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 1 updated: 2015/12/19 17:47:56
1252 dnl -------------------------
1253 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1254 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1255 dnl
1256 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1257 dnl all of those were combined into a page of useful graphics characters.
1258 dnl
1259 dnl So far, so good.
1260 dnl
1261 dnl However, while they are useful, there are other considerations.  CJK
1262 dnl is (because of poor device resolution) often rendered as double-width
1263 dnl characters.  So... for these generally-useful characters, what should
1264 dnl be the width (to make them consistent with adjacent characters)?
1265 dnl
1266 dnl The obvious choice would have been to make this locale-dependent, and use
1267 dnl wcwidth() to tell applications what the actual width is.  That was too
1268 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1269 dnl See for example
1270 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1271 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1272 dnl
1273 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1274 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1275 dnl instance, it lists half (44/96) of the Latin-1 characters as
1276 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1277 dnl
1278 dnl What this means for the implementor is that on some systems wcwidth() can
1279 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1280 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1281 dnl characters).  These do not necessarily match the behavior of the terminal
1282 dnl emulator.  xterm, for instance, does an optional startup check to find if
1283 dnl this problem (or similar) exists with the system's locale tables, rejecting
1284 dnl them if they are too unreliable.
1285 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1286 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1287 cat >conftest.in <<CF_EOF
1288 -       VT100 symbols
1289 0x250c  upper left corner
1290 0x2514  lower left corner
1291 0x2510  upper right corner
1292 0x2518  lower right corner
1293 0x251c  tee pointing left
1294 0x2524  tee pointing right
1295 0x2534  tee pointing up
1296 0x252c  tee pointing down
1297 0x2500  horizontal line
1298 0x2502  vertical line
1299 0x253c  large plus or crossover
1300 0x23ba  scan line 1
1301 0x23bd  scan line 9
1302 0x25c6  diamond
1303 0x2592  checker board (stipple)
1304 0x00b0  degree symbol
1305 0x00b1  plus/minus
1306 0x00b7  bullet
1307 -       Teletype 5410v1 symbols
1308 0x2190  arrow pointing left
1309 0x2192  arrow pointing right
1310 0x2193  arrow pointing down
1311 0x2191  arrow pointing up
1312 0x2592  board of squares
1313 0x2603  lantern symbol
1314 0x25ae  solid square block
1315 -       these defaults were invented for ncurses
1316 0x23bb  scan line 3
1317 0x23bc  scan line 7
1318 0x2264  less-than-or-equal-to
1319 0x2265  greater-than-or-equal-to
1320 0x03c0  greek pi
1321 0x2260  not-equal
1322 0x00a3  pound-sterling symbol
1323 -       thick-line-drawing
1324 0x250f  upper left corner
1325 0x2517  lower left corner
1326 0x2513  upper right corner
1327 0x251b  lower right corner
1328 0x2523  tee pointing left
1329 0x252b  tee pointing right
1330 0x253b  tee pointing up
1331 0x2533  tee pointing down
1332 0x2501  horizontal line
1333 0x2503  vertical line
1334 0x254b  large plus or crossover
1335 -       double-line-drawing
1336 0x2554  upper left corner
1337 0x255a  lower left corner
1338 0x2557  upper right corner
1339 0x255d  lower right corner
1340 0x2563  tee pointing left
1341 0x2560  tee pointing right
1342 0x2569  tee pointing up
1343 0x2566  tee pointing down
1344 0x2550  horizontal line
1345 0x2551  vertical line
1346 0x256c  large plus or crossover
1347 CF_EOF
1348 AC_TRY_RUN([
1349 #include <locale.h>
1350 #include <stdio.h>
1351 #include <wchar.h>
1352
1353 #define MY_LEN 80
1354
1355 int
1356 main(void)
1357 {
1358         FILE *fp;
1359         int value;
1360         char buffer[MY_LEN + 1];
1361         char notes[MY_LEN + 1];
1362         int totals = 0;
1363         int passed = 0;
1364
1365         if (setlocale(LC_ALL, "en_US.UTF8") ||
1366                 setlocale(LC_ALL, "en_US.UTF-8") ||
1367                 setlocale(LC_ALL, "en_US.utf8") ||
1368                 setlocale(LC_ALL, "en_US.utf-8")) {
1369                 if ((fp = fopen("conftest.in", "r")) != 0) {
1370                         while (fgets(buffer, MY_LEN, fp) != 0) {
1371                                 if (*buffer == '-') {
1372                                         fprintf(stderr, "\t%s", buffer);
1373                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1374                                         ++totals;
1375                                         if (wcwidth(value) == 1)
1376                                                 ++passed;
1377                                         fprintf(stderr, "%d\t%s", wcwidth(value), buffer);
1378                                 } else {
1379                                         fprintf(stderr, "?\t%s", buffer);
1380                                 }
1381                         }
1382                 }
1383         }
1384         fprintf(stderr, "%d/%d passed wcwidth/graphics check\n", passed, totals);
1385         return (totals == passed) ? 0 : 1;
1386 }
1387 ],
1388 [cf_cv_wcwidth_graphics=yes],
1389 [cf_cv_wcwidth_graphics=no],
1390 [cf_cv_wcwidth_graphics=unknown])
1391 ])
1392 ])dnl
1393 dnl ---------------------------------------------------------------------------
1394 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
1395 dnl -----------------
1396 dnl Check if the given compiler is really clang.  clang's C driver defines
1397 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1398 dnl not ignore some gcc options.
1399 dnl
1400 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1401 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1402 dnl the wrappers for gcc and g++ warnings.
1403 dnl
1404 dnl $1 = GCC (default) or GXX
1405 dnl $2 = CLANG_COMPILER (default)
1406 dnl $3 = CFLAGS (default) or CXXFLAGS
1407 AC_DEFUN([CF_CLANG_COMPILER],[
1408 ifelse([$2],,CLANG_COMPILER,[$2])=no
1409
1410 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1411         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1412         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1413         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
1414         AC_TRY_COMPILE([],[
1415 #ifdef __clang__
1416 #else
1417 make an error
1418 #endif
1419 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1420 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
1421 ],[])
1422         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1423         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1424 fi
1425 ])
1426 dnl ---------------------------------------------------------------------------
1427 dnl CF_CONST_X_STRING version: 1 updated: 2019/04/08 17:50:29
1428 dnl -----------------
1429 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1430 dnl character-strings.
1431 dnl
1432 dnl It is ambiguous because the specification accommodated the pre-ANSI
1433 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1434 dnl compiler other than by costly add-ons.  Because of this, the specification
1435 dnl did not take into account the use of const for telling the compiler that
1436 dnl string literals would be in readonly memory.
1437 dnl
1438 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1439 dnl let the compiler decide how to represent Xt's strings which were #define'd.
1440 dnl That does not solve the problem of using the block of Xt's strings which
1441 dnl are compiled into the library (and is less efficient than one might want).
1442 dnl
1443 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1444 dnl when compiling the library and compiling using the library, to tell the
1445 dnl compiler that String is const.
1446 AC_DEFUN([CF_CONST_X_STRING],
1447 [
1448 AC_TRY_COMPILE(
1449 [
1450 #include <stdlib.h>
1451 #include <X11/Intrinsic.h>
1452 ],
1453 [String foo = malloc(1)],[
1454
1455 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1456         AC_TRY_COMPILE(
1457                 [
1458 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1459 #undef  XTSTRINGDEFINES /* X11R5 and later */
1460 #include <stdlib.h>
1461 #include <X11/Intrinsic.h>
1462                 ],[String foo = malloc(1); *foo = 0],[
1463                         cf_cv_const_x_string=no
1464                 ],[
1465                         cf_cv_const_x_string=yes
1466                 ])
1467 ])
1468
1469 case $cf_cv_const_x_string in
1470 (no)
1471         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1472         ;;
1473 (*)
1474         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1475         ;;
1476 esac
1477
1478 ])
1479 ])dnl
1480 dnl ---------------------------------------------------------------------------
1481 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1482 dnl -----------------
1483 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1484 dnl is a late feature for the standard and is not in some recent compilers
1485 dnl (1999/9/11).
1486 AC_DEFUN([CF_CPP_PARAM_INIT],
1487 [
1488 if test -n "$CXX"; then
1489 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1490         AC_LANG_SAVE
1491         AC_LANG_CPLUSPLUS
1492         AC_TRY_RUN([
1493 class TEST {
1494 private:
1495         int value;
1496 public:
1497         TEST(int x = 1);
1498         ~TEST();
1499 };
1500
1501 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1502 {
1503         value = x;
1504 }
1505 int main(void) { }
1506 ],
1507         [cf_cv_cpp_param_init=yes],
1508         [cf_cv_cpp_param_init=no],
1509         [cf_cv_cpp_param_init=unknown])
1510         AC_LANG_RESTORE
1511 ])
1512 fi
1513 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1514 ])dnl
1515 dnl ---------------------------------------------------------------------------
1516 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1517 dnl ------------------
1518 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1519 dnl not be supported in g++ before 3.0
1520 AC_DEFUN([CF_CPP_STATIC_CAST],
1521 [
1522 if test -n "$CXX"; then
1523
1524 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1525         AC_LANG_SAVE
1526         AC_LANG_CPLUSPLUS
1527
1528         AC_TRY_COMPILE([
1529 class NCursesPanel
1530 {
1531 public:
1532   NCursesPanel(int nlines,
1533                int ncols,
1534                int begin_y = 0,
1535                int begin_x = 0)
1536   {
1537   }
1538   NCursesPanel();
1539   ~NCursesPanel();
1540 };
1541
1542 template<class T> class NCursesUserPanel : public NCursesPanel
1543 {
1544 public:
1545   NCursesUserPanel (int nlines,
1546                     int ncols,
1547                     int begin_y = 0,
1548                     int begin_x = 0,
1549                     const T* p_UserData = static_cast<T*>(0))
1550     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1551   {
1552   };
1553   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1554   {
1555   };
1556
1557   virtual ~NCursesUserPanel() {};
1558 };
1559 ],[
1560         const char* p_UserData = static_cast<char*>(0)],
1561         [cf_cv_cpp_static_cast=yes],
1562         [cf_cv_cpp_static_cast=no])
1563
1564         AC_LANG_RESTORE
1565 ])
1566
1567 fi
1568
1569 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1570 ])dnl
1571 dnl ---------------------------------------------------------------------------
1572 dnl CF_CXX_AR_FLAGS version: 2 updated: 2015/04/17 21:13:04
1573 dnl ---------------
1574 dnl Setup special archiver flags for given compilers.
1575 AC_DEFUN([CF_CXX_AR_FLAGS],[
1576         CXX_AR='$(AR)'
1577         CXX_ARFLAGS='$(ARFLAGS)'
1578         case $cf_cv_system_name in
1579         (irix*)
1580             if test "$GXX" != yes ; then
1581                 CXX_AR='$(CXX)'
1582                 CXX_ARFLAGS='-ar -o'
1583             fi
1584             ;;
1585         (sco3.2v5*)
1586             CXXLDFLAGS="-u main"
1587             ;;
1588         (solaris2*)
1589             if test "$GXX" != yes ; then
1590                 CXX_AR='$(CXX)'
1591                 CXX_ARFLAGS='-xar -o'
1592             fi
1593             ;;
1594         esac
1595         AC_SUBST(CXXLDFLAGS)
1596         AC_SUBST(CXX_AR)
1597         AC_SUBST(CXX_ARFLAGS)
1598 ])dnl
1599 dnl ---------------------------------------------------------------------------
1600 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1601 dnl -------------------------
1602 dnl For c++, check if iostream uses "std::" namespace.
1603 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1604 AC_CHECK_HEADERS(iostream)
1605 if test x"$ac_cv_header_iostream" = xyes ; then
1606         AC_MSG_CHECKING(if iostream uses std-namespace)
1607         AC_TRY_COMPILE([
1608 #include <iostream>
1609 using std::endl;
1610 using std::cerr;],[
1611 cerr << "testing" << endl;
1612 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1613         AC_MSG_RESULT($cf_iostream_namespace)
1614         if test "$cf_iostream_namespace" = yes ; then
1615                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1616         fi
1617 fi
1618 ])dnl
1619 dnl ---------------------------------------------------------------------------
1620 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1621 dnl -----------
1622 dnl Check if the C compiler supports "inline".
1623 dnl $1 is the name of a shell variable to set if inline is supported
1624 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1625 AC_DEFUN([CF_C_INLINE],[
1626 AC_REQUIRE([CF_GCC_VERSION])
1627 AC_C_INLINE
1628 $1=
1629 if test "$ac_cv_c_inline" != no ; then
1630         $1=inline
1631         if test "$INTEL_COMPILER" = yes
1632         then
1633                 :
1634         elif test "$CLANG_COMPILER" = yes
1635         then
1636                 :
1637         elif test "$GCC" = yes
1638         then
1639                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1640                 cf_save_CFLAGS=$CFLAGS
1641                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1642                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1643                 [${cf_cv_main_return:-return} foo()],
1644                 [cf_cv_gcc_inline=yes],
1645                 [cf_cv_gcc_inline=no])
1646                 CFLAGS=$cf_save_CFLAGS
1647                 ])
1648                 if test "$cf_cv_gcc_inline" = yes ; then
1649                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1650                 fi
1651         fi
1652 fi
1653 AC_SUBST($1)
1654 ])dnl
1655 dnl ---------------------------------------------------------------------------
1656 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
1657 dnl ----------
1658 dnl "dirname" is not portable, so we fake it with a shell script.
1659 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
1660 dnl ---------------------------------------------------------------------------
1661 dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
1662 dnl ---------------
1663 AC_DEFUN([CF_DIRS_TO_MAKE],
1664 [
1665 DIRS_TO_MAKE="lib"
1666 for cf_item in $cf_list_models
1667 do
1668         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1669         for cf_item2 in $DIRS_TO_MAKE
1670         do
1671                 test $cf_item2 = $cf_subdir && break
1672         done
1673         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1674 done
1675 for cf_dir in $DIRS_TO_MAKE
1676 do
1677         test ! -d $cf_dir && mkdir $cf_dir
1678 done
1679 AC_SUBST(DIRS_TO_MAKE)
1680 ])dnl
1681 dnl ---------------------------------------------------------------------------
1682 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1683 dnl ---------------
1684 dnl You can always use "make -n" to see the actual options, but it's hard to
1685 dnl pick out/analyze warning messages when the compile-line is long.
1686 dnl
1687 dnl Sets:
1688 dnl     ECHO_LT - symbol to control if libtool is verbose
1689 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1690 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1691 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1692 dnl     ECHO_CC - symbol to put before any "cc" line
1693 dnl
1694 AC_DEFUN([CF_DISABLE_ECHO],[
1695 AC_MSG_CHECKING(if you want to see long compiling messages)
1696 CF_ARG_DISABLE(echo,
1697         [  --disable-echo          do not display "compiling" commands],
1698         [
1699         ECHO_LT='--silent'
1700         ECHO_LD='@echo linking [$]@;'
1701         RULE_CC='@echo compiling [$]<'
1702         SHOW_CC='@echo compiling [$]@'
1703         ECHO_CC='@'
1704 ],[
1705         ECHO_LT=''
1706         ECHO_LD=''
1707         RULE_CC=''
1708         SHOW_CC=''
1709         ECHO_CC=''
1710 ])
1711 AC_MSG_RESULT($enableval)
1712 AC_SUBST(ECHO_LT)
1713 AC_SUBST(ECHO_LD)
1714 AC_SUBST(RULE_CC)
1715 AC_SUBST(SHOW_CC)
1716 AC_SUBST(ECHO_CC)
1717 ])dnl
1718 dnl ---------------------------------------------------------------------------
1719 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1720 dnl ------------------------
1721 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1722 AC_MSG_CHECKING(if we want to use GNAT projects)
1723 CF_ARG_DISABLE(gnat-projects,
1724         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1725         [enable_gnat_projects=no],
1726         [enable_gnat_projects=yes])
1727 AC_MSG_RESULT($enable_gnat_projects)
1728 ])dnl
1729 dnl ---------------------------------------------------------------------------
1730 dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
1731 dnl ----------------
1732 dnl Combine no-leak checks with the libraries or tools that are used for the
1733 dnl checks.
1734 AC_DEFUN([CF_DISABLE_LEAKS],[
1735
1736 AC_REQUIRE([CF_WITH_DMALLOC])
1737 AC_REQUIRE([CF_WITH_DBMALLOC])
1738 AC_REQUIRE([CF_WITH_VALGRIND])
1739
1740 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1741 AC_ARG_ENABLE(leaks,
1742         [  --disable-leaks         test: free permanent memory, analyze leaks],
1743         [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
1744         : ${with_no_leaks:=no})
1745 AC_MSG_RESULT($with_no_leaks)
1746
1747 if test "$with_no_leaks" = yes ; then
1748         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1749         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1750 fi
1751 ])dnl
1752 dnl ---------------------------------------------------------------------------
1753 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1754 dnl --------------------------
1755 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1756 dnl the older "-version-info" feature.  The newer feature allows us to use
1757 dnl version numbering on shared libraries which make them compatible with
1758 dnl various systems.
1759 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1760 [
1761 AC_MSG_CHECKING(if libtool -version-number should be used)
1762 CF_ARG_DISABLE(libtool-version,
1763         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
1764         [cf_libtool_version=no],
1765         [cf_libtool_version=yes])
1766 AC_MSG_RESULT($cf_libtool_version)
1767
1768 if test "$cf_libtool_version" = yes ; then
1769         LIBTOOL_VERSION="-version-number"
1770 else
1771         LIBTOOL_VERSION="-version-info"
1772         case "x$VERSION" in
1773         (x)
1774                 AC_MSG_WARN(VERSION was not set)
1775                 ;;
1776         (x*.*.*)
1777                 ABI_VERSION="$VERSION"
1778                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1779                 ;;
1780         (x*:*:*)
1781                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
1782                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1783                 ;;
1784         (*)
1785                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
1786                 ;;
1787         esac
1788 fi
1789
1790 AC_SUBST(ABI_VERSION)
1791 AC_SUBST(LIBTOOL_VERSION)
1792 ])dnl
1793 dnl ---------------------------------------------------------------------------
1794 dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
1795 dnl ---------------------
1796 dnl The rpath-hack makes it simpler to build programs, particularly with the
1797 dnl *BSD ports which may have essential libraries in unusual places.  But it
1798 dnl can interfere with building an executable for the base system.  Use this
1799 dnl option in that case.
1800 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1801 [
1802 AC_MSG_CHECKING(if rpath-hack should be disabled)
1803 CF_ARG_DISABLE(rpath-hack,
1804         [  --disable-rpath-hack    don't add rpath options for additional libraries],
1805         [cf_disable_rpath_hack=yes],
1806         [cf_disable_rpath_hack=no])
1807 AC_MSG_RESULT($cf_disable_rpath_hack)
1808 if test "$cf_disable_rpath_hack" = no ; then
1809         CF_RPATH_HACK
1810 fi
1811 ])
1812 dnl ---------------------------------------------------------------------------
1813 dnl CF_ENABLE_PC_FILES version: 13 updated: 2015/11/01 05:27:39
1814 dnl ------------------
1815 dnl This is the "--enable-pc-files" option, which is available if there is a
1816 dnl pkg-config configuration on the local machine.
1817 AC_DEFUN([CF_ENABLE_PC_FILES],[
1818 AC_REQUIRE([CF_PKG_CONFIG])
1819 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
1820
1821 if test "x$PKG_CONFIG" != xnone
1822 then
1823         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
1824 else
1825         AC_MSG_CHECKING(if we should install .pc files)
1826 fi
1827
1828 AC_ARG_ENABLE(pc-files,
1829         [  --enable-pc-files       generate and install .pc files for pkg-config],
1830         [enable_pc_files=$enableval],
1831         [enable_pc_files=no])
1832 AC_MSG_RESULT($enable_pc_files)
1833
1834 if test "x$enable_pc_files" != xno
1835 then
1836         MAKE_PC_FILES=
1837         case "x$PKG_CONFIG_LIBDIR" in
1838         (xno|xyes)
1839                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
1840                 ;;
1841         (*)
1842                 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
1843                 ;;
1844         esac
1845 else
1846         MAKE_PC_FILES="#"
1847 fi
1848 AC_SUBST(MAKE_PC_FILES)
1849 ])dnl
1850 dnl ---------------------------------------------------------------------------
1851 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
1852 dnl ---------------
1853 dnl Check if the rpath option should be used, setting cache variable
1854 dnl cf_cv_enable_rpath if so.
1855 AC_DEFUN([CF_ENABLE_RPATH],
1856 [
1857 AC_MSG_CHECKING(if rpath option should be used)
1858 AC_ARG_ENABLE(rpath,
1859 [  --enable-rpath          use rpath option when generating shared libraries],
1860 [cf_cv_enable_rpath=$enableval],
1861 [cf_cv_enable_rpath=no])
1862 AC_MSG_RESULT($cf_cv_enable_rpath)
1863 ])dnl
1864 dnl ---------------------------------------------------------------------------
1865 dnl CF_ENABLE_STRING_HACKS version: 5 updated: 2016/10/08 17:34:11
1866 dnl ----------------------
1867 dnl On a few platforms, the compiler and/or loader nags with untruthful
1868 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1869 dnl and implying that most uses of the recommended alternatives are correct.
1870 dnl
1871 dnl Factually speaking, no one has actually counted the number of uses of these
1872 dnl functions versus the total of incorrect uses.  Samples of a few thousand
1873 dnl instances are meaningless compared to the hundreds of millions of lines of
1874 dnl existing C code.
1875 dnl
1876 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1877 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
1878 dnl standard - but evolved through phases, and older implementations are likely
1879 dnl to yield surprising results, as documented in manpages on various systems.
1880 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1881 [
1882 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1883 AC_ARG_ENABLE(string-hacks,
1884         [  --enable-string-hacks   work around bogus compiler/loader warnings],
1885         [with_string_hacks=$enableval],
1886         [with_string_hacks=no])
1887 AC_MSG_RESULT($with_string_hacks)
1888
1889 if test "x$with_string_hacks" = "xyes"; then
1890         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1891         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1892         AC_CHECK_FUNC(strlcat,[
1893                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1894                 ],[
1895                 AC_CHECK_LIB(bsd,strlcat,[
1896                         CF_ADD_LIB(bsd)
1897                         AC_CHECK_HEADERS(bsd/string.h)
1898                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1899                         ])
1900                 ])
1901         AC_CHECK_FUNCS( strlcpy snprintf )
1902 fi
1903 ])dnl
1904 dnl ---------------------------------------------------------------------------
1905 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
1906 dnl --------
1907 dnl Check if 'errno' is declared in <errno.h>
1908 AC_DEFUN([CF_ERRNO],
1909 [
1910 CF_CHECK_ERRNO(errno)
1911 ])dnl
1912 dnl ---------------------------------------------------------------------------
1913 dnl CF_ETIP_DEFINES version: 5 updated: 2012/02/18 17:51:07
1914 dnl ---------------
1915 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
1916 dnl math.h and builtin.h, only for ncurses
1917 AC_DEFUN([CF_ETIP_DEFINES],
1918 [
1919 AC_MSG_CHECKING(for special defines needed for etip.h)
1920 cf_save_CXXFLAGS="$CXXFLAGS"
1921 cf_result="none"
1922
1923 # etip.h includes ncurses.h which includes ncurses_dll.h
1924 # But ncurses_dll.h is generated - fix here.
1925 test -d include || mkdir include
1926 test -f include/ncurses_dll.h || sed -e 's/@NCURSES_WRAP_PREFIX@/'$NCURSES_WRAP_PREFIX'/g' ${srcdir}/include/ncurses_dll.h.in >include/ncurses_dll.h
1927
1928 for cf_math in "" MATH_H
1929 do
1930 for cf_excp in "" MATH_EXCEPTION
1931 do
1932         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
1933         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
1934         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
1935 AC_TRY_COMPILE([
1936 #include <etip.h.in>
1937 ],[],[
1938         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
1939         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
1940         cf_result="$cf_math $cf_excp"
1941         break 2
1942 ],[])
1943 done
1944 done
1945 AC_MSG_RESULT($cf_result)
1946 CXXFLAGS="$cf_save_CXXFLAGS"
1947 ])
1948 dnl ---------------------------------------------------------------------------
1949 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
1950 dnl ---------------
1951 dnl Find a library (specifically the linkage used in the code fragment),
1952 dnl searching for it if it is not already in the library path.
1953 dnl See also CF_ADD_SEARCHPATH.
1954 dnl
1955 dnl Parameters (4-on are optional):
1956 dnl     $1 = headers for library entrypoint
1957 dnl     $2 = code fragment for library entrypoint
1958 dnl     $3 = the library name without the "-l" option or ".so" suffix.
1959 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
1960 dnl     $5 = action to perform if not successful
1961 dnl     $6 = module name, if not the same as the library name
1962 dnl     $7 = extra libraries
1963 dnl
1964 dnl Sets these variables:
1965 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1966 dnl     $cf_cv_header_path_$3 - include-directory if needed
1967 dnl     $cf_cv_library_path_$3 - library-directory if needed
1968 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1969 AC_DEFUN([CF_FIND_LINKAGE],[
1970
1971 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1972 # will be set on completion of the AC_TRY_LINK below.
1973 cf_cv_header_path_$3=
1974 cf_cv_library_path_$3=
1975
1976 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1977
1978 cf_save_LIBS="$LIBS"
1979
1980 AC_TRY_LINK([$1],[$2],[
1981         cf_cv_find_linkage_$3=yes
1982         cf_cv_header_path_$3=/usr/include
1983         cf_cv_library_path_$3=/usr/lib
1984 ],[
1985
1986 LIBS="-l$3 $7 $cf_save_LIBS"
1987
1988 AC_TRY_LINK([$1],[$2],[
1989         cf_cv_find_linkage_$3=yes
1990         cf_cv_header_path_$3=/usr/include
1991         cf_cv_library_path_$3=/usr/lib
1992         cf_cv_library_file_$3="-l$3"
1993 ],[
1994         cf_cv_find_linkage_$3=no
1995         LIBS="$cf_save_LIBS"
1996
1997         CF_VERBOSE(find linkage for $3 library)
1998         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1999
2000         cf_save_CPPFLAGS="$CPPFLAGS"
2001         cf_test_CPPFLAGS="$CPPFLAGS"
2002
2003         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2004         for cf_cv_header_path_$3 in $cf_search
2005         do
2006                 if test -d $cf_cv_header_path_$3 ; then
2007                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2008                         CPPFLAGS="$cf_save_CPPFLAGS"
2009                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2010                         AC_TRY_COMPILE([$1],[$2],[
2011                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2012                                 cf_cv_find_linkage_$3=maybe
2013                                 cf_test_CPPFLAGS="$CPPFLAGS"
2014                                 break],[
2015                                 CPPFLAGS="$cf_save_CPPFLAGS"
2016                                 ])
2017                 fi
2018         done
2019
2020         if test "$cf_cv_find_linkage_$3" = maybe ; then
2021
2022                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2023
2024                 cf_save_LIBS="$LIBS"
2025                 cf_save_LDFLAGS="$LDFLAGS"
2026
2027                 ifelse([$6],,,[
2028                 CPPFLAGS="$cf_test_CPPFLAGS"
2029                 LIBS="-l$3 $7 $cf_save_LIBS"
2030                 AC_TRY_LINK([$1],[$2],[
2031                         CF_VERBOSE(... found $3 library in system)
2032                         cf_cv_find_linkage_$3=yes])
2033                         CPPFLAGS="$cf_save_CPPFLAGS"
2034                         LIBS="$cf_save_LIBS"
2035                         ])
2036
2037                 if test "$cf_cv_find_linkage_$3" != yes ; then
2038                         CF_LIBRARY_PATH(cf_search,$3)
2039                         for cf_cv_library_path_$3 in $cf_search
2040                         do
2041                                 if test -d $cf_cv_library_path_$3 ; then
2042                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2043                                         CPPFLAGS="$cf_test_CPPFLAGS"
2044                                         LIBS="-l$3 $7 $cf_save_LIBS"
2045                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2046                                         AC_TRY_LINK([$1],[$2],[
2047                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2048                                         cf_cv_find_linkage_$3=yes
2049                                         cf_cv_library_file_$3="-l$3"
2050                                         break],[
2051                                         CPPFLAGS="$cf_save_CPPFLAGS"
2052                                         LIBS="$cf_save_LIBS"
2053                                         LDFLAGS="$cf_save_LDFLAGS"
2054                                         ])
2055                                 fi
2056                         done
2057                         CPPFLAGS="$cf_save_CPPFLAGS"
2058                         LDFLAGS="$cf_save_LDFLAGS"
2059                 fi
2060
2061         else
2062                 cf_cv_find_linkage_$3=no
2063         fi
2064         ],$7)
2065 ])
2066
2067 LIBS="$cf_save_LIBS"
2068
2069 if test "$cf_cv_find_linkage_$3" = yes ; then
2070 ifelse([$4],,[
2071         CF_ADD_INCDIR($cf_cv_header_path_$3)
2072         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2073         CF_ADD_LIB($3)
2074 ],[$4])
2075 else
2076 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2077 fi
2078 ])dnl
2079 dnl ---------------------------------------------------------------------------
2080 dnl CF_FIND_SUB_INCDIR version: 2 updated: 2015/04/17 21:13:04
2081 dnl ------------------
2082 dnl Find an include-directory with the given leaf-name.  This is useful for
2083 dnl example with FreeBSD ports, which use this convention to distinguish
2084 dnl different versions of the same port.
2085 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2086         CF_SUBDIR_PATH(cf_search,$1,include)
2087         for cf_item in $cf_search
2088         do
2089                 case $cf_item in
2090                 (*/$1)
2091                         CF_ADD_INCDIR($cf_item)
2092                         ;;
2093                 esac
2094         done
2095 ])dnl
2096 dnl ---------------------------------------------------------------------------
2097 dnl CF_FIND_SUB_LIBDIR version: 2 updated: 2015/04/17 21:13:04
2098 dnl ------------------
2099 dnl Find a library-directory with the given leaf-name.  This is useful for
2100 dnl example with FreeBSD ports, which use this convention to distinguish
2101 dnl different versions of the same port.
2102 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2103         CF_SUBDIR_PATH(cf_search,$1,lib)
2104         for cf_item in $cf_search
2105         do
2106                 case $cf_item in
2107                 (*/$1)
2108                         CF_ADD_LIBDIR($cf_item)
2109                         ;;
2110                 esac
2111         done
2112 ])dnl
2113 dnl ---------------------------------------------------------------------------
2114 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2115 dnl -----------------
2116 dnl make ADAFLAGS consistent with CFLAGS
2117 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2118         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2119         case "$CFLAGS" in
2120         (*-g*)
2121                 CF_ADD_ADAFLAGS(-g)
2122                 ;;
2123         esac
2124         case "$CFLAGS" in
2125         (*-O*)
2126                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2127                 CF_ADD_ADAFLAGS($cf_O_flag)
2128                 ;;
2129         esac
2130         AC_MSG_RESULT($ADAFLAGS)
2131 ])dnl
2132 dnl ---------------------------------------------------------------------------
2133 dnl CF_FOPEN_BIN_R version: 1 updated: 2019/03/30 17:52:21
2134 dnl --------------
2135 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2136 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2137 dnl systems do not accept it.
2138 AC_DEFUN([CF_FOPEN_BIN_R],[
2139 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2140         AC_TRY_RUN([
2141 #include <stdio.h>
2142 int main(void) {
2143         FILE *fp = fopen("conftest.tmp", "wb");
2144         int rc = 0;
2145         if (fp != 0) {
2146                 int p, q;
2147                 for (p = 0; p < 256; ++p) {
2148                         fputc(p, fp);
2149                 }
2150                 fclose(fp);
2151                 fp = fopen("conftest.tmp", "rb");
2152                 if (fp != 0) {
2153                         for (p = 0; p < 256; ++p) {
2154                                 q = fgetc(fp);
2155                                 if (q != p) {
2156                                         rc = 1;
2157                                         break;
2158                                 }
2159                         }
2160                 } else {
2161                         rc = 1;
2162                 }
2163         } else {
2164                 rc = 1;
2165         }
2166         ${cf_cv_main_return:-return} (rc);
2167 }
2168 ],
2169                 [cf_cv_fopen_bin_r=yes],
2170                 [cf_cv_fopen_bin_r=no],
2171                 [cf_cv_fopen_bin_r=unknown])
2172 ])
2173 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R)
2174 ])dnl
2175 dnl ---------------------------------------------------------------------------
2176 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2177 dnl --------------
2178 dnl Forget that we saw the given tool.
2179 AC_DEFUN([CF_FORGET_TOOL],[
2180 unset ac_cv_prog_ac_ct_$1
2181 unset ac_ct_$1
2182 unset $1
2183 ])dnl
2184 dnl ---------------------------------------------------------------------------
2185 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2186 dnl -------------
2187 dnl Test for dlsym() and related functions, as well as libdl.
2188 dnl
2189 dnl Sets
2190 dnl     $cf_have_dlsym
2191 dnl     $cf_have_libdl
2192 AC_DEFUN([CF_FUNC_DLSYM],[
2193 cf_have_dlsym=no
2194 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2195
2196 cf_have_libdl=no
2197 AC_CHECK_LIB(dl,dlsym,[
2198         cf_have_dlsym=yes
2199         cf_have_libdl=yes])])
2200
2201 if test "$cf_have_dlsym" = yes ; then
2202         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2203
2204         AC_MSG_CHECKING(whether able to link to dl*() functions)
2205         AC_TRY_LINK([#include <dlfcn.h>],[
2206                 void *obj;
2207                 if ((obj = dlopen("filename", 0)) != 0) {
2208                         if (dlsym(obj, "symbolname") == 0) {
2209                         dlclose(obj);
2210                         }
2211                 }],[
2212                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2213                 AC_MSG_ERROR(Cannot link test program for libdl)])
2214         AC_MSG_RESULT(ok)
2215 else
2216         AC_MSG_ERROR(Cannot find dlsym function)
2217 fi
2218 ])
2219 dnl ---------------------------------------------------------------------------
2220 dnl CF_FUNC_MEMMOVE version: 9 updated: 2017/01/21 11:06:25
2221 dnl ---------------
2222 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2223 dnl is found, add our own version of memmove to the list of objects.
2224 AC_DEFUN([CF_FUNC_MEMMOVE],
2225 [
2226 AC_CHECK_FUNC(memmove,,[
2227 AC_CHECK_FUNC(bcopy,[
2228         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2229                 AC_TRY_RUN([
2230 int main(void) {
2231         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2232         char temp[40];
2233         bcopy(data, temp, sizeof(data));
2234         bcopy(temp+10, temp, 15);
2235         bcopy(temp+5, temp+15, 10);
2236         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2237 }
2238                 ],
2239                 [cf_cv_good_bcopy=yes],
2240                 [cf_cv_good_bcopy=no],
2241                 [cf_cv_good_bcopy=unknown])
2242                 ])
2243         ],[cf_cv_good_bcopy=no])
2244         if test "$cf_cv_good_bcopy" = yes ; then
2245                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2246         else
2247                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2248         fi
2249 ])])dnl
2250 dnl ---------------------------------------------------------------------------
2251 dnl CF_FUNC_NANOSLEEP version: 5 updated: 2017/01/21 11:06:25
2252 dnl -----------------
2253 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2254 dnl AIX 4.x, provide a non-working version.
2255 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2256 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2257 AC_TRY_RUN([
2258 #include <stdio.h>
2259 #include <errno.h>
2260 #include <time.h>
2261
2262 #ifdef HAVE_SYS_TIME_H
2263 #include <sys/time.h>
2264 #endif
2265
2266 int main(void) {
2267         struct timespec ts1, ts2;
2268         int code;
2269         ts1.tv_sec  = 0;
2270         ts1.tv_nsec = 750000000;
2271         ts2.tv_sec  = 0;
2272         ts2.tv_nsec = 0;
2273         errno = 0;
2274         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2275         ${cf_cv_main_return:-return}(code != 0);
2276 }
2277 ],
2278         [cf_cv_func_nanosleep=yes],
2279         [cf_cv_func_nanosleep=no],
2280         [cf_cv_func_nanosleep=unknown])])
2281
2282 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2283 ])
2284 dnl ---------------------------------------------------------------------------
2285 dnl CF_FUNC_OPENPTY version: 5 updated: 2015/09/12 14:46:50
2286 dnl ---------------
2287 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2288 dnl "util" library as well.
2289 AC_DEFUN([CF_FUNC_OPENPTY],
2290 [
2291 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2292 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2293         cf_save_LIBS="$LIBS"
2294         test $cf_cv_lib_util = yes && { CF_ADD_LIB(util) }
2295         for cf_header in pty.h libutil.h util.h
2296         do
2297         AC_TRY_LINK([
2298 #include <$cf_header>
2299 ],[
2300         int x = openpty((int *)0, (int *)0, (char *)0,
2301                                    (struct termios *)0, (struct winsize *)0);
2302 ],[
2303                 cf_cv_func_openpty=$cf_header
2304                 break
2305 ],[
2306                 cf_cv_func_openpty=no
2307 ])
2308         done
2309         LIBS="$cf_save_LIBS"
2310 ])
2311 ])dnl
2312 dnl ---------------------------------------------------------------------------
2313 dnl CF_FUNC_POLL version: 9 updated: 2015/10/10 13:27:32
2314 dnl ------------
2315 dnl See if the poll function really works.  Some platforms have poll(), but
2316 dnl it does not work for terminals or files.
2317 AC_DEFUN([CF_FUNC_POLL],[
2318 tty 2>&1 >/dev/null || { AC_CHECK_FUNCS(posix_openpt) }
2319 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2320 AC_TRY_RUN([
2321 #include <stdlib.h>
2322 #include <stdio.h>
2323 #include <unistd.h>
2324 #include <fcntl.h>
2325 #ifdef HAVE_POLL_H
2326 #include <poll.h>
2327 #else
2328 #include <sys/poll.h>
2329 #endif
2330 int main(void) {
2331         struct pollfd myfds;
2332         int ret;
2333
2334         /* check for Darwin bug with respect to "devices" */
2335         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2336         if (myfds.fd < 0)
2337                 myfds.fd = 0;
2338         myfds.events = POLLIN;
2339         myfds.revents = 0;
2340
2341         ret = poll(&myfds, 1, 100);
2342
2343         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2344                 ret = -1;
2345         } else {
2346                 int fd = 0;
2347                 if (!isatty(fd)) {
2348                         fd = open("/dev/tty", 2);       /* O_RDWR */
2349                 }
2350 #ifdef HAVE_POSIX_OPENPT
2351                 if (fd < 0) {
2352                         fd = posix_openpt(O_RDWR);
2353                 }
2354 #endif
2355
2356                 if (fd >= 0) {
2357                         /* also check with standard input */
2358                         myfds.fd = fd;
2359                         myfds.events = POLLIN;
2360                         myfds.revents = 0;
2361                         ret = poll(&myfds, 1, 100);
2362                 } else {
2363                         ret = -1;
2364                 }
2365         }
2366         ${cf_cv_main_return:-return}(ret < 0);
2367 }],
2368         [cf_cv_working_poll=yes],
2369         [cf_cv_working_poll=no],
2370         [cf_cv_working_poll=unknown])])
2371 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2372 ])dnl
2373 dnl ---------------------------------------------------------------------------
2374 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2375 dnl ---------------
2376 dnl Some old/broken variations define tcgetattr() only as a macro in
2377 dnl termio(s).h
2378 AC_DEFUN([CF_FUNC_TERMIOS],[
2379 AC_REQUIRE([CF_STRUCT_TERMIOS])
2380 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2381 AC_TRY_LINK([
2382 #include <sys/types.h>
2383 #ifdef HAVE_UNISTD_H
2384 #include <unistd.h>
2385 #endif
2386 #ifdef HAVE_TERMIOS_H
2387 #include <termios.h>
2388 #define TTY struct termios
2389 #else
2390 #ifdef HAVE_TERMIO_H
2391 #include <termio.h>
2392 #define TTY struct termio
2393 #endif
2394 #endif
2395 ],[
2396 TTY foo;
2397 tcgetattr(1, &foo);],
2398 [cf_cv_have_tcgetattr=yes],
2399 [cf_cv_have_tcgetattr=no])])
2400 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2401 ])dnl
2402 dnl ---------------------------------------------------------------------------
2403 dnl CF_FUNC_VSSCANF version: 6 updated: 2015/04/18 08:56:57
2404 dnl ---------------
2405 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2406 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2407 dnl other functions.
2408 AC_DEFUN([CF_FUNC_VSSCANF],
2409 [
2410 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2411 AC_TRY_LINK([
2412 #include <stdarg.h>
2413 #include <stdio.h>],[
2414         va_list ap;
2415         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2416 AC_TRY_LINK([
2417 #include <stdarg.h>
2418 #include <stdio.h>],[
2419         FILE strbuf;
2420         char *str = "from";
2421
2422         strbuf._flag = _IOREAD;
2423         strbuf._ptr = strbuf._base = (unsigned char *) str;
2424         strbuf._cnt = strlen(str);
2425         strbuf._file = _NFILE;
2426         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2427 AC_TRY_LINK([
2428 #include <stdarg.h>
2429 #include <stdio.h>],[
2430         FILE strbuf;
2431         char *str = "from";
2432
2433         strbuf._flag = _IOREAD;
2434         strbuf._ptr = strbuf._base = (unsigned char *) str;
2435         strbuf._cnt = strlen(str);
2436         strbuf._file = _NFILE;
2437         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2438 cf_cv_func_vsscanf=no])])])])
2439
2440 case $cf_cv_func_vsscanf in
2441 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2442 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2443 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2444 esac
2445
2446 ])dnl
2447 dnl ---------------------------------------------------------------------------
2448 dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
2449 dnl -----------------
2450 dnl Test for availability of useful gcc __attribute__ directives to quiet
2451 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2452 dnl to documentation, unrecognized directives cause older compilers to barf.
2453 AC_DEFUN([CF_GCC_ATTRIBUTES],
2454 [
2455 if test "$GCC" = yes
2456 then
2457 cat > conftest.i <<EOF
2458 #ifndef GCC_PRINTF
2459 #define GCC_PRINTF 0
2460 #endif
2461 #ifndef GCC_SCANF
2462 #define GCC_SCANF 0
2463 #endif
2464 #ifndef GCC_NORETURN
2465 #define GCC_NORETURN /* nothing */
2466 #endif
2467 #ifndef GCC_UNUSED
2468 #define GCC_UNUSED /* nothing */
2469 #endif
2470 EOF
2471 if test "$GCC" = yes
2472 then
2473         AC_CHECKING([for $CC __attribute__ directives])
2474 cat > conftest.$ac_ext <<EOF
2475 #line __oline__ "${as_me:-configure}"
2476 #include "confdefs.h"
2477 #include "conftest.h"
2478 #include "conftest.i"
2479 #if     GCC_PRINTF
2480 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2481 #else
2482 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2483 #endif
2484 #if     GCC_SCANF
2485 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2486 #else
2487 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2488 #endif
2489 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2490 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
2491 extern void foo(void) GCC_NORETURN;
2492 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
2493 EOF
2494         cf_printf_attribute=no
2495         cf_scanf_attribute=no
2496         for cf_attribute in scanf printf unused noreturn
2497         do
2498                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2499                 cf_directive="__attribute__(($cf_attribute))"
2500                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2501
2502                 case $cf_attribute in
2503                 (printf)
2504                         cf_printf_attribute=yes
2505                         cat >conftest.h <<EOF
2506 #define GCC_$cf_ATTRIBUTE 1
2507 EOF
2508                         ;;
2509                 (scanf)
2510                         cf_scanf_attribute=yes
2511                         cat >conftest.h <<EOF
2512 #define GCC_$cf_ATTRIBUTE 1
2513 EOF
2514                         ;;
2515                 (*)
2516                         cat >conftest.h <<EOF
2517 #define GCC_$cf_ATTRIBUTE $cf_directive
2518 EOF
2519                         ;;
2520                 esac
2521
2522                 if AC_TRY_EVAL(ac_compile); then
2523                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2524                         cat conftest.h >>confdefs.h
2525                         case $cf_attribute in
2526                         (noreturn)
2527                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2528                                 ;;
2529                         (printf)
2530                                 cf_value='/* nothing */'
2531                                 if test "$cf_printf_attribute" != no ; then
2532                                         cf_value='__attribute__((format(printf,fmt,var)))'
2533                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2534                                 fi
2535                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2536                                 ;;
2537                         (scanf)
2538                                 cf_value='/* nothing */'
2539                                 if test "$cf_scanf_attribute" != no ; then
2540                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2541                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2542                                 fi
2543                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2544                                 ;;
2545                         (unused)
2546                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2547                                 ;;
2548                         esac
2549                 fi
2550         done
2551 else
2552         fgrep define conftest.i >>confdefs.h
2553 fi
2554 rm -rf conftest*
2555 fi
2556 ])dnl
2557 dnl ---------------------------------------------------------------------------
2558 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
2559 dnl --------------
2560 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
2561 dnl compatible), attempt to determine if icc/clang is actually used.
2562 AC_DEFUN([CF_GCC_VERSION],[
2563 AC_REQUIRE([AC_PROG_CC])
2564 GCC_VERSION=none
2565 if test "$GCC" = yes ; then
2566         AC_MSG_CHECKING(version of $CC)
2567         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2568         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2569         AC_MSG_RESULT($GCC_VERSION)
2570 fi
2571 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2572 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2573 ])dnl
2574 dnl ---------------------------------------------------------------------------
2575 dnl CF_GCC_WARNINGS version: 36 updated: 2019/09/07 13:38:36
2576 dnl ---------------
2577 dnl Check if the compiler supports useful warning options.  There's a few that
2578 dnl we don't use, simply because they're too noisy:
2579 dnl
2580 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2581 dnl     -Wredundant-decls (system headers make this too noisy)
2582 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2583 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2584 dnl             is enabled for ncurses using "--enable-const".
2585 dnl     -pedantic
2586 dnl
2587 dnl Parameter:
2588 dnl     $1 is an optional list of gcc warning flags that a particular
2589 dnl             application might want to use, e.g., "no-unused" for
2590 dnl             -Wno-unused
2591 dnl Special:
2592 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2593 dnl
2594 AC_DEFUN([CF_GCC_WARNINGS],
2595 [
2596 AC_REQUIRE([CF_GCC_VERSION])
2597 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
2598 cat > conftest.$ac_ext <<EOF
2599 #line __oline__ "${as_me:-configure}"
2600 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2601 EOF
2602 if test "$INTEL_COMPILER" = yes
2603 then
2604 # The "-wdXXX" options suppress warnings:
2605 # remark #1419: external declaration in primary source file
2606 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2607 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2608 # remark #193: zero used for undefined preprocessing identifier
2609 # remark #593: variable "curs_sb_left_arrow" was set but never used
2610 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2611 # remark #869: parameter "tw" was never referenced
2612 # remark #981: operands are evaluated in unspecified order
2613 # warning #279: controlling expression is constant
2614
2615         AC_CHECKING([for $CC warning options])
2616         cf_save_CFLAGS="$CFLAGS"
2617         EXTRA_CFLAGS="-Wall"
2618         for cf_opt in \
2619                 wd1419 \
2620                 wd1683 \
2621                 wd1684 \
2622                 wd193 \
2623                 wd593 \
2624                 wd279 \
2625                 wd810 \
2626                 wd869 \
2627                 wd981
2628         do
2629                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2630                 if AC_TRY_EVAL(ac_compile); then
2631                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2632                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2633                 fi
2634         done
2635         CFLAGS="$cf_save_CFLAGS"
2636 elif test "$GCC" = yes
2637 then
2638         AC_CHECKING([for $CC warning options])
2639         cf_save_CFLAGS="$CFLAGS"
2640         EXTRA_CFLAGS=
2641         cf_warn_CONST=""
2642         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2643         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2644         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2645         for cf_opt in W Wall \
2646                 Wbad-function-cast \
2647                 Wcast-align \
2648                 Wcast-qual \
2649                 Wdeclaration-after-statement \
2650                 Wextra \
2651                 Winline \
2652                 Wmissing-declarations \
2653                 Wmissing-prototypes \
2654                 Wnested-externs \
2655                 Wpointer-arith \
2656                 Wshadow \
2657                 Wstrict-prototypes \
2658                 Wundef $cf_gcc_warnings $cf_warn_CONST $1
2659         do
2660                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2661                 if AC_TRY_EVAL(ac_compile); then
2662                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2663                         case $cf_opt in
2664                         (Winline)
2665                                 case $GCC_VERSION in
2666                                 ([[34]].*)
2667                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2668                                         continue;;
2669                                 esac
2670                                 ;;
2671                         (Wpointer-arith)
2672                                 case $GCC_VERSION in
2673                                 ([[12]].*)
2674                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2675                                         continue;;
2676                                 esac
2677                                 ;;
2678                         esac
2679                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2680                 fi
2681         done
2682         CFLAGS="$cf_save_CFLAGS"
2683 fi
2684 rm -rf conftest*
2685
2686 AC_SUBST(EXTRA_CFLAGS)
2687 ])dnl
2688 dnl ---------------------------------------------------------------------------
2689 dnl CF_GETOPT_HEADER version: 6 updated: 2014/07/22 14:45:54
2690 dnl ----------------
2691 dnl Check for getopt's variables which are commonly defined in stdlib.h,
2692 dnl unistd.h or (nonstandard) in getopt.h
2693 AC_DEFUN([CF_GETOPT_HEADER],
2694 [
2695 AC_HAVE_HEADERS(unistd.h getopt.h)
2696 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
2697 cf_cv_getopt_header=none
2698 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2699 do
2700 AC_TRY_COMPILE([
2701 #include <$cf_header>],
2702 [int x = optind; char *y = optarg],
2703 [cf_cv_getopt_header=$cf_header
2704  break])
2705 done
2706 ])
2707 if test $cf_cv_getopt_header != none ; then
2708         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2709 fi
2710 if test $cf_cv_getopt_header = getopt.h ; then
2711         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2712 fi
2713 ])dnl
2714 dnl ---------------------------------------------------------------------------
2715 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
2716 dnl -----------------
2717 AC_DEFUN([CF_GNATPREP_OPT_T],[
2718 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
2719 cf_cv_gnatprep_opt_t=no
2720 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
2721 ])
2722 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
2723 AC_SUBST(GNATPREP_OPTS)
2724 ])dnl
2725 dnl ---------------------------------------------------------------------------
2726 dnl CF_GNAT_GENERICS version: 3 updated: 2015/04/17 21:13:04
2727 dnl ----------------
2728 AC_DEFUN([CF_GNAT_GENERICS],
2729 [
2730 AC_REQUIRE([CF_GNAT_VERSION])
2731
2732 AC_MSG_CHECKING(if GNAT supports generics)
2733 case $cf_gnat_version in
2734 (3.[[1-9]]*|[[4-9]].*)
2735         cf_gnat_generics=yes
2736         ;;
2737 (*)
2738         cf_gnat_generics=no
2739         ;;
2740 esac
2741 AC_MSG_RESULT($cf_gnat_generics)
2742
2743 if test "$cf_gnat_generics" = yes
2744 then
2745         cf_compile_generics=generics
2746         cf_generic_objects="\${GENOBJS}"
2747 else
2748         cf_compile_generics=
2749         cf_generic_objects=
2750 fi
2751
2752 AC_SUBST(cf_compile_generics)
2753 AC_SUBST(cf_generic_objects)
2754 ])dnl
2755 dnl ---------------------------------------------------------------------------
2756 dnl CF_GNAT_PROJECTS version: 9 updated: 2018/01/14 15:46:09
2757 dnl ----------------
2758 dnl GNAT projects are configured with ".gpr" project files.
2759 dnl GNAT libraries are a further development, using the project feature.
2760 AC_DEFUN([CF_GNAT_PROJECTS],
2761 [
2762 AC_REQUIRE([CF_GNAT_VERSION])
2763 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
2764
2765 cf_gnat_libraries=no
2766 cf_gnat_projects=no
2767
2768 if test "$enable_gnat_projects" != no ; then
2769 AC_MSG_CHECKING(if GNAT supports project files)
2770 case $cf_gnat_version in
2771 (3.[[0-9]]*)
2772         ;;
2773 (*)
2774         case $cf_cv_system_name in
2775         (cygwin*|msys*)
2776                 ;;
2777         (*)
2778                 rm -rf conftest* *~conftest*
2779                 if mkdir conftest.src conftest.bin conftest.lib
2780                 then
2781                         cd conftest.src
2782                         rm -rf conftest* *~conftest*
2783                         cat >>library.gpr <<CF_EOF
2784 project Library is
2785   Kind := External ("LIB_KIND");
2786   for Library_Name use "ConfTest";
2787   for Object_Dir use ".";
2788   for Library_ALI_Dir use External("LIBRARY_DIR");
2789   for Library_Version use External ("SONAME");
2790   for Library_Kind use Kind;
2791   for Library_Dir use External("BUILD_DIR");
2792   Source_Dir := External ("SOURCE_DIR");
2793   for Source_Dirs use (Source_Dir);
2794 end Library;
2795 CF_EOF
2796                         cat >>confpackage.ads <<CF_EOF
2797 package ConfPackage is
2798    procedure conftest;
2799 end ConfPackage;
2800 CF_EOF
2801                         cat >>confpackage.adb <<CF_EOF
2802 with Text_IO;
2803 package body ConfPackage is
2804    procedure conftest is
2805    begin
2806       Text_IO.Put ("Hello World");
2807       Text_IO.New_Line;
2808    end conftest;
2809 end ConfPackage;
2810 CF_EOF
2811                         if ( $cf_ada_make $ADAFLAGS \
2812                                         -Plibrary.gpr \
2813                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
2814                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
2815                                         -XSOURCE_DIR=`pwd` \
2816                                         -XSONAME=libConfTest.so.1 \
2817                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
2818                                 cf_gnat_projects=yes
2819                         fi
2820                         cd ..
2821                 fi
2822                 if test -f conftest.lib/confpackage.ali
2823                 then
2824                         cf_gnat_libraries=yes
2825                 fi
2826                 rm -rf conftest* *~conftest*
2827                 ;;
2828         esac
2829         ;;
2830 esac
2831 AC_MSG_RESULT($cf_gnat_projects)
2832 fi # enable_gnat_projects
2833
2834 if test $cf_gnat_projects = yes
2835 then
2836         AC_MSG_CHECKING(if GNAT supports libraries)
2837         AC_MSG_RESULT($cf_gnat_libraries)
2838 fi
2839
2840 if test "$cf_gnat_projects" = yes
2841 then
2842         USE_OLD_MAKERULES="#"
2843         USE_GNAT_PROJECTS=""
2844 else
2845         USE_OLD_MAKERULES=""
2846         USE_GNAT_PROJECTS="#"
2847 fi
2848
2849 if test "$cf_gnat_libraries" = yes
2850 then
2851         USE_GNAT_LIBRARIES=""
2852 else
2853         USE_GNAT_LIBRARIES="#"
2854 fi
2855
2856 AC_SUBST(USE_OLD_MAKERULES)
2857 AC_SUBST(USE_GNAT_PROJECTS)
2858 AC_SUBST(USE_GNAT_LIBRARIES)
2859 ])dnl
2860 dnl ---------------------------------------------------------------------------
2861 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
2862 dnl --------------
2863 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
2864 dnl is noted that gnat may compile a tasking unit even for configurations which
2865 dnl fail at runtime.
2866 AC_DEFUN([CF_GNAT_SIGINT],[
2867 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
2868 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
2869
2870 package ConfTest is
2871
2872    pragma Warnings (Off);  --  the next pragma exists since 3.11p
2873    pragma Unreserve_All_Interrupts;
2874    pragma Warnings (On);
2875
2876    protected Process is
2877       procedure Stop;
2878       function Continue return Boolean;
2879       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
2880    private
2881       Done : Boolean := False;
2882    end Process;
2883
2884 end ConfTest;],
2885 [package body ConfTest is
2886    protected body Process is
2887       procedure Stop is
2888       begin
2889          Done := True;
2890       end Stop;
2891       function Continue return Boolean is
2892       begin
2893          return not Done;
2894       end Continue;
2895    end Process;
2896 end ConfTest;],
2897         [cf_cv_gnat_sigint=yes],
2898         [cf_cv_gnat_sigint=no])])
2899
2900 if test $cf_cv_gnat_sigint = yes ; then
2901         USE_GNAT_SIGINT=""
2902 else
2903         USE_GNAT_SIGINT="#"
2904 fi
2905 AC_SUBST(USE_GNAT_SIGINT)
2906 ])dnl
2907 dnl ---------------------------------------------------------------------------
2908 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
2909 dnl ----------------
2910 dnl Verify that a test program compiles/links with GNAT.
2911 dnl $cf_ada_make is set to the program that compiles/links
2912 dnl $ADAFLAGS may be set to the GNAT flags.
2913 dnl
2914 dnl $1 is the text of the spec
2915 dnl $2 is the text of the body
2916 dnl $3 is the shell command to execute if successful
2917 dnl $4 is the shell command to execute if not successful
2918 AC_DEFUN([CF_GNAT_TRY_LINK],
2919 [
2920 rm -rf conftest* *~conftest*
2921 cat >>conftest.ads <<CF_EOF
2922 $1
2923 CF_EOF
2924 cat >>conftest.adb <<CF_EOF
2925 $2
2926 CF_EOF
2927 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
2928 ifelse($3,,      :,[      $3])
2929 ifelse($4,,,[else
2930    $4])
2931 fi
2932 rm -rf conftest* *~conftest*
2933 ])dnl
2934 dnl ---------------------------------------------------------------------------
2935 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
2936 dnl ---------------
2937 dnl Verify that a test program compiles and runs with GNAT
2938 dnl $cf_ada_make is set to the program that compiles/links
2939 dnl $ADAFLAGS may be set to the GNAT flags.
2940 dnl
2941 dnl $1 is the text of the spec
2942 dnl $2 is the text of the body
2943 dnl $3 is the shell command to execute if successful
2944 dnl $4 is the shell command to execute if not successful
2945 AC_DEFUN([CF_GNAT_TRY_RUN],
2946 [
2947 rm -rf conftest* *~conftest*
2948 cat >>conftest.ads <<CF_EOF
2949 $1
2950 CF_EOF
2951 cat >>conftest.adb <<CF_EOF
2952 $2
2953 CF_EOF
2954 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
2955    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
2956 ifelse($3,,      :,[      $3])
2957 ifelse($4,,,[   else
2958       $4])
2959    fi
2960 ifelse($4,,,[else
2961    $4])
2962 fi
2963 rm -rf conftest* *~conftest*
2964 ])dnl
2965 dnl ---------------------------------------------------------------------------
2966 dnl CF_GNAT_VERSION version: 21 updated: 2019/09/21 18:08:42
2967 dnl ---------------
2968 dnl $1 = cache variable to update
2969 dnl $2 = program name
2970 dnl Verify version of GNAT or related tool
2971 AC_DEFUN([CF_GNAT_VERSION],
2972 [
2973 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_gnat_version,[
2974 cf_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
2975         grep '[[0-9]].[[0-9]][[0-9]]*' |\
2976         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
2977 ])
2978 test -z "$cf_gnat_version" && cf_gnat_version=no
2979 ifelse($1,,,[eval $1=$cf_gnat_version; unset cf_gnat_version])
2980 ])dnl
2981 dnl ---------------------------------------------------------------------------
2982 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
2983 dnl -------------
2984 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
2985 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
2986 dnl (or misfeature) of glibc2, which breaks portability of many applications,
2987 dnl since it is interwoven with GNU extensions.
2988 dnl
2989 dnl Well, yes we could work around it...
2990 dnl
2991 dnl Parameters:
2992 dnl     $1 is the nominal value for _XOPEN_SOURCE
2993 AC_DEFUN([CF_GNU_SOURCE],
2994 [
2995 cf_gnu_xopen_source=ifelse($1,,500,$1)
2996
2997 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
2998 AC_TRY_COMPILE([#include <sys/types.h>],[
2999         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3000                 return 0;
3001         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3002                 return 0;
3003         #else
3004         #       error not GNU C library
3005         #endif],
3006         [cf_cv_gnu_library=yes],
3007         [cf_cv_gnu_library=no])
3008 ])
3009
3010 if test x$cf_cv_gnu_library = xyes; then
3011
3012         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3013         # was changed to help a little.  newlib incorporated the change about 4
3014         # years later.
3015         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3016                 cf_save="$CPPFLAGS"
3017                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3018                 AC_TRY_COMPILE([#include <sys/types.h>],[
3019                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3020                                 return 0;
3021                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3022                                 return 0;
3023                         #else
3024                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3025                         #endif],
3026                         [cf_cv_gnu_library_219=yes],
3027                         [cf_cv_gnu_library_219=no])
3028                 CPPFLAGS="$cf_save"
3029         ])
3030
3031         if test "x$cf_cv_gnu_library_219" = xyes; then
3032                 cf_save="$CPPFLAGS"
3033                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3034                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3035                         AC_TRY_COMPILE([
3036                                 #include <limits.h>
3037                                 #include <sys/types.h>
3038                                 ],[
3039                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3040                                         return 0;
3041                                 #else
3042                                 #       error GNU C library is too old
3043                                 #endif],
3044                                 [cf_cv_gnu_dftsrc_219=yes],
3045                                 [cf_cv_gnu_dftsrc_219=no])
3046                         ])
3047                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3048         else
3049                 cf_cv_gnu_dftsrc_219=maybe
3050         fi
3051
3052         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3053
3054                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3055                 AC_TRY_COMPILE([#include <sys/types.h>],[
3056                         #ifndef _XOPEN_SOURCE
3057                         #error  expected _XOPEN_SOURCE to be defined
3058                         #endif],
3059                         [cf_cv_gnu_source=no],
3060                         [cf_save="$CPPFLAGS"
3061                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3062                          AC_TRY_COMPILE([#include <sys/types.h>],[
3063                                 #ifdef _XOPEN_SOURCE
3064                                 #error  expected _XOPEN_SOURCE to be undefined
3065                                 #endif],
3066                                 [cf_cv_gnu_source=no],
3067                                 [cf_cv_gnu_source=yes])
3068                         CPPFLAGS="$cf_save"
3069                         ])
3070                 ])
3071
3072                 if test "$cf_cv_gnu_source" = yes
3073                 then
3074                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3075                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3076                         AC_TRY_COMPILE([#include <sys/types.h>],[
3077                                 #ifdef _DEFAULT_SOURCE
3078                                 #error  expected _DEFAULT_SOURCE to be undefined
3079                                 #endif],
3080                                 [cf_cv_default_source=no],
3081                                 [cf_cv_default_source=yes])
3082                         ])
3083                         if test "$cf_cv_default_source" = yes
3084                         then
3085                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3086                         fi
3087                 fi
3088         fi
3089
3090 fi
3091 ])dnl
3092 dnl ---------------------------------------------------------------------------
3093 dnl CF_GPP_LIBRARY version: 12 updated: 2015/04/17 21:13:04
3094 dnl --------------
3095 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3096 dnl problem :-).  If we have the compiler but no library, we'll be able to
3097 dnl configure, but won't be able to build the c++ demo program.
3098 AC_DEFUN([CF_GPP_LIBRARY],
3099 [
3100 cf_cxx_library=unknown
3101 case $cf_cv_system_name in
3102 (os2*)
3103         cf_gpp_libname=gpp
3104         ;;
3105 (*)
3106         cf_gpp_libname=g++
3107         ;;
3108 esac
3109 if test "$GXX" = yes; then
3110         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3111         cf_save="$LIBS"
3112         CF_ADD_LIB($cf_gpp_libname)
3113         AC_TRY_LINK([
3114 #include <$cf_gpp_libname/builtin.h>
3115         ],
3116         [two_arg_error_handler_t foo2 = lib_error_handler],
3117         [cf_cxx_library=yes
3118          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3119          if test "$cf_gpp_libname" = cpp ; then
3120             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3121          else
3122             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3123          fi],
3124         [AC_TRY_LINK([
3125 #include <builtin.h>
3126         ],
3127         [two_arg_error_handler_t foo2 = lib_error_handler],
3128         [cf_cxx_library=yes
3129          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3130          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3131         [cf_cxx_library=no])])
3132         LIBS="$cf_save"
3133         AC_MSG_RESULT($cf_cxx_library)
3134 fi
3135 ])dnl
3136 dnl ---------------------------------------------------------------------------
3137 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3138 dnl --------------
3139 dnl Check for version of g++
3140 AC_DEFUN([CF_GXX_VERSION],[
3141 AC_REQUIRE([AC_PROG_CPP])
3142 GXX_VERSION=none
3143 if test "$GXX" = yes; then
3144         AC_MSG_CHECKING(version of ${CXX:-g++})
3145         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3146         if test -z "$GXX_VERSION"
3147         then
3148                 GXX_VERSION=unknown
3149                 GXX=no
3150         fi
3151         AC_MSG_RESULT($GXX_VERSION)
3152 fi
3153 ])dnl
3154 dnl ---------------------------------------------------------------------------
3155 dnl CF_GXX_WARNINGS version: 9 updated: 2015/04/17 21:13:04
3156 dnl ---------------
3157 dnl Check if the compiler supports useful warning options.
3158 dnl
3159 dnl Most of gcc's options apply to g++, except:
3160 dnl     -Wbad-function-cast
3161 dnl     -Wmissing-declarations
3162 dnl     -Wnested-externs
3163 dnl
3164 dnl Omit a few (for now):
3165 dnl     -Winline
3166 dnl
3167 dnl Parameter:
3168 dnl     $1 is an optional list of g++ warning flags that a particular
3169 dnl             application might want to use, e.g., "no-unused" for
3170 dnl             -Wno-unused
3171 dnl Special:
3172 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3173 dnl
3174 AC_DEFUN([CF_GXX_WARNINGS],
3175 [
3176
3177 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3178 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3179
3180 AC_REQUIRE([CF_GXX_VERSION])
3181
3182 AC_LANG_SAVE
3183 AC_LANG_CPLUSPLUS
3184
3185 cat > conftest.$ac_ext <<EOF
3186 #line __oline__ "configure"
3187 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3188 EOF
3189
3190 if test "$INTEL_CPLUSPLUS" = yes
3191 then
3192 # The "-wdXXX" options suppress warnings:
3193 # remark #1419: external declaration in primary source file
3194 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3195 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3196 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3197 # remark #193: zero used for undefined preprocessing identifier
3198 # remark #593: variable "curs_sb_left_arrow" was set but never used
3199 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3200 # remark #869: parameter "tw" was never referenced
3201 # remark #981: operands are evaluated in unspecified order
3202 # warning #269: invalid format string conversion
3203
3204         AC_CHECKING([for $CC warning options])
3205         cf_save_CXXFLAGS="$CXXFLAGS"
3206         EXTRA_CXXFLAGS="-Wall"
3207         for cf_opt in \
3208                 wd1419 \
3209                 wd1682 \
3210                 wd1683 \
3211                 wd1684 \
3212                 wd193 \
3213                 wd279 \
3214                 wd593 \
3215                 wd810 \
3216                 wd869 \
3217                 wd981
3218         do
3219                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3220                 if AC_TRY_EVAL(ac_compile); then
3221                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3222                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3223                 fi
3224         done
3225         CXXFLAGS="$cf_save_CXXFLAGS"
3226
3227 elif test "$GXX" = yes
3228 then
3229         AC_CHECKING([for $CXX warning options])
3230         cf_save_CXXFLAGS="$CXXFLAGS"
3231         EXTRA_CXXFLAGS="-W -Wall"
3232         cf_gxx_extra_warnings=""
3233         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3234         case "$GCC_VERSION" in
3235         ([[1-2]].*)
3236                 ;;
3237         (*)
3238                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3239                 ;;
3240         esac
3241         for cf_opt in \
3242                 Wabi \
3243                 fabi-version=0 \
3244                 Wextra \
3245                 Wignored-qualifiers \
3246                 Wlogical-op \
3247                 Woverloaded-virtual \
3248                 Wsign-promo \
3249                 Wsynth \
3250                 Wold-style-cast \
3251                 Wcast-align \
3252                 Wcast-qual \
3253                 Wpointer-arith \
3254                 Wshadow \
3255                 Wundef $cf_gxx_extra_warnings $1
3256         do
3257                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3258                 if AC_TRY_EVAL(ac_compile); then
3259                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3260                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3261                 else
3262                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3263                 fi
3264         done
3265         CXXFLAGS="$cf_save_CXXFLAGS"
3266 fi
3267
3268 rm -rf conftest*
3269 AC_LANG_RESTORE
3270 AC_SUBST(EXTRA_CXXFLAGS)
3271 ])dnl
3272 dnl ---------------------------------------------------------------------------
3273 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3274 dnl ------------
3275 dnl Look for an instance of the Berkeley hashed database.
3276 dnl
3277 dnl $1 = optional parameter, to specify install-prefix for the database.
3278 AC_DEFUN([CF_HASHED_DB],
3279 [
3280 ifelse([$1],,,[
3281 case $1 in
3282 (yes|*able*)
3283         ;;
3284 (*)
3285         if test -d "$1" ; then
3286                 CF_ADD_INCDIR($1/include)
3287                 CF_ADD_LIBDIR($1/lib)
3288         else
3289                 case "$1" in
3290                 (./*|../*|/*)
3291                         AC_MSG_WARN(no such directory $1)
3292                         ;;
3293                 (*)
3294                         CF_FIND_SUB_INCDIR($1)
3295                         CF_FIND_SUB_LIBDIR($1)
3296                         ;;
3297                 esac
3298         fi
3299 esac
3300 ])
3301 AC_CHECK_HEADER(db.h,[
3302 CF_HASHED_DB_VERSION
3303 if test "$cf_cv_hashed_db_version" = unknown ; then
3304         AC_MSG_ERROR(Cannot determine version of db)
3305 else
3306         CF_HASHED_DB_LIBS
3307         if test "$cf_cv_hashed_db_libs" = unknown ; then
3308                 AC_MSG_ERROR(Cannot determine library for db)
3309         elif test "$cf_cv_hashed_db_libs" != default ; then
3310                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3311         fi
3312 fi
3313 ],[
3314         AC_MSG_ERROR(Cannot find db.h)
3315 ])
3316 ])dnl
3317 dnl ---------------------------------------------------------------------------
3318 dnl CF_HASHED_DB_LIBS version: 9 updated: 2010/05/29 16:31:02
3319 dnl -----------------
3320 dnl Given that we have the header and version for hashed database, find the
3321 dnl library information.
3322 AC_DEFUN([CF_HASHED_DB_LIBS],
3323 [
3324 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3325 cf_cv_hashed_db_libs=unknown
3326 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3327 do
3328         cf_save_libs="$LIBS"
3329         if test -n "$cf_db_libs"; then
3330                 CF_ADD_LIB($cf_db_libs)
3331         fi
3332         CF_MSG_LOG(checking for library "$cf_db_libs")
3333         AC_TRY_LINK([
3334 $ac_includes_default
3335 #include <db.h>
3336 ],[
3337         char *path = "/tmp/foo";
3338 #ifdef DB_VERSION_MAJOR
3339 #if DB_VERSION_MAJOR >= 4
3340         DB *result = 0;
3341         db_create(&result, NULL, 0);
3342         result->open(result,
3343                 NULL,
3344                 path,
3345                 path,
3346                 DB_HASH,
3347                 DB_CREATE,
3348                 0644);
3349 #elif DB_VERSION_MAJOR >= 3
3350         DB *result = 0;
3351         db_create(&result, NULL, 0);
3352         result->open(result,
3353                 path,
3354                 path,
3355                 DB_HASH,
3356                 DB_CREATE,
3357                 0644);
3358 #elif DB_VERSION_MAJOR >= 2
3359         DB *result = 0;
3360         db_open(path,
3361                 DB_HASH,
3362                 DB_CREATE,
3363                 0644,
3364                 (DB_ENV *) 0,
3365                 (DB_INFO *) 0,
3366                 &result);
3367 #endif /* DB_VERSION_MAJOR */
3368 #else
3369         DB *result = dbopen(path,
3370                      2,
3371                      0644,
3372                      DB_HASH,
3373                      0);
3374 #endif
3375         ${cf_cv_main_return:-return}(result != 0)
3376 ],[
3377         if test -n "$cf_db_libs" ; then
3378                 cf_cv_hashed_db_libs=$cf_db_libs
3379         else
3380                 cf_cv_hashed_db_libs=default
3381         fi
3382         LIBS="$cf_save_libs"
3383         break
3384 ])
3385         LIBS="$cf_save_libs"
3386 done
3387 ])
3388 ])dnl
3389 dnl ---------------------------------------------------------------------------
3390 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3391 dnl --------------------
3392 dnl Given that we have the header file for hashed database, find the version
3393 dnl information.
3394 AC_DEFUN([CF_HASHED_DB_VERSION],
3395 [
3396 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3397 cf_cv_hashed_db_version=unknown
3398
3399 for cf_db_version in 1 2 3 4 5 6
3400 do
3401         CF_MSG_LOG(checking for db version $cf_db_version)
3402         AC_TRY_COMPILE([
3403 $ac_includes_default
3404 #include <db.h>
3405
3406 #ifdef DB_VERSION_MAJOR
3407         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3408 #if $cf_db_version == DB_VERSION_MAJOR
3409         /* ok */
3410 #else
3411         make an error
3412 #endif
3413 #else
3414 #if $cf_db_version == 1
3415         /* ok: assuming this is DB 1.8.5 */
3416 #else
3417         make an error
3418 #endif
3419 #endif
3420 ],[DBT *foo = 0],[
3421         cf_cv_hashed_db_version=$cf_db_version
3422         break
3423         ])
3424 done
3425 ])
3426 ])dnl
3427 dnl ---------------------------------------------------------------------------
3428 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
3429 dnl --------------
3430 dnl Construct a search-list of directories for a nonstandard header-file
3431 dnl
3432 dnl Parameters
3433 dnl     $1 = the variable to return as result
3434 dnl     $2 = the package name
3435 AC_DEFUN([CF_HEADER_PATH],
3436 [
3437 $1=
3438
3439 # collect the current set of include-directories from compiler flags
3440 cf_header_path_list=""
3441 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3442         for cf_header_path in $CPPFLAGS $CFLAGS
3443         do
3444                 case $cf_header_path in
3445                 (-I*)
3446                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3447                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3448                         cf_header_path_list="$cf_header_path_list [$]$1"
3449                         ;;
3450                 esac
3451         done
3452 fi
3453
3454 # add the variations for the package we are looking for
3455 CF_SUBDIR_PATH($1,$2,include)
3456
3457 test "$includedir" != NONE && \
3458 test "$includedir" != "/usr/include" && \
3459 test -d "$includedir" && {
3460         test -d $includedir &&    $1="[$]$1 $includedir"
3461         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
3462 }
3463
3464 test "$oldincludedir" != NONE && \
3465 test "$oldincludedir" != "/usr/include" && \
3466 test -d "$oldincludedir" && {
3467         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
3468         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
3469 }
3470
3471 $1="[$]$1 $cf_header_path_list"
3472 ])dnl
3473 dnl ---------------------------------------------------------------------------
3474 dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
3475 dnl ---------------
3476 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3477 AC_DEFUN([CF_HELP_MESSAGE],
3478 [AC_DIVERT_HELP([$1])dnl
3479 ])dnl
3480 dnl ---------------------------------------------------------------------------
3481 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3482 dnl ---------------
3483 dnl Construct the list of include-options according to whether we're building
3484 dnl in the source directory or using '--srcdir=DIR' option.
3485 AC_DEFUN([CF_INCLUDE_DIRS],
3486 [
3487 if test "$srcdir" != "."; then
3488         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3489 fi
3490 CPPFLAGS="-I../include $CPPFLAGS"
3491 if test "$srcdir" != "."; then
3492         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3493 fi
3494 CPPFLAGS="-I. $CPPFLAGS"
3495 AC_SUBST(CPPFLAGS)
3496 ])dnl
3497 dnl ---------------------------------------------------------------------------
3498 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
3499 dnl ---------------
3500 dnl prompt for/fill-in useful install-program options
3501 AC_DEFUN([CF_INSTALL_OPTS],
3502 [
3503 CF_INSTALL_OPT_S
3504 CF_INSTALL_OPT_P
3505 CF_INSTALL_OPT_O
3506 ])dnl
3507 dnl ---------------------------------------------------------------------------
3508 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
3509 dnl ----------------
3510 dnl Almost all "install" programs default to the current user's ownership.
3511 dnl Almost - MINIX is an exception.
3512 AC_DEFUN([CF_INSTALL_OPT_O],
3513 [
3514 AC_MSG_CHECKING(if install needs to be told about ownership)
3515 case `$ac_config_guess` in
3516 (*minix)
3517         with_install_o=yes
3518         ;;
3519 (*)
3520         with_install_o=no
3521         ;;
3522 esac
3523
3524 AC_MSG_RESULT($with_install_o)
3525 if test "x$with_install_o" = xyes
3526 then
3527         INSTALL_OPT_O=`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`
3528 else
3529         INSTALL_OPT_O=
3530 fi
3531
3532 AC_SUBST(INSTALL_OPT_O)
3533 ])dnl
3534 dnl ---------------------------------------------------------------------------
3535 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
3536 dnl ----------------
3537 dnl Some install-programs accept a "-p" option to preserve file modification
3538 dnl timestamps.  That can be useful as an install option, as well as a way to
3539 dnl avoid the need for ranlib after copying a static archive.
3540 AC_DEFUN([CF_INSTALL_OPT_P],
3541 [
3542 : ${INSTALL:=install}
3543 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
3544         rm -rf conftest*
3545         date >conftest.in
3546         mkdir conftest.out
3547         sleep 3
3548         if $INSTALL -p conftest.in conftest.out 2>/dev/null
3549         then
3550                 if test -f conftest.out/conftest.in
3551                 then
3552                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
3553                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
3554                         if test -s conftest.err
3555                         then
3556                                 cf_cv_install_p=no
3557                         else
3558                                 cf_cv_install_p=yes
3559                         fi
3560                 else
3561                         cf_cv_install_p=no
3562                 fi
3563         else
3564                 cf_cv_install_p=no
3565         fi
3566         rm -rf conftest*
3567 ])
3568 ])dnl
3569 dnl ---------------------------------------------------------------------------
3570 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
3571 dnl ----------------
3572 dnl By default, we should strip executables which are installed, but leave the
3573 dnl ability to suppress that for unit-testing.
3574 AC_DEFUN([CF_INSTALL_OPT_S],
3575 [
3576 AC_MSG_CHECKING(if you want to install stripped executables)
3577 CF_ARG_DISABLE(stripping,
3578         [  --disable-stripping     do not strip (debug info) installed executables],
3579         [with_stripping=no],
3580         [with_stripping=yes])
3581 AC_MSG_RESULT($with_stripping)
3582
3583 if test "$with_stripping" = yes
3584 then
3585         INSTALL_OPT_S="-s"
3586 else
3587         INSTALL_OPT_S=
3588 fi
3589 AC_SUBST(INSTALL_OPT_S)
3590 ])dnl
3591 dnl ---------------------------------------------------------------------------
3592 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
3593 dnl -----------------
3594 dnl Check if the given compiler is really the Intel compiler for Linux.  It
3595 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
3596 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
3597 dnl
3598 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
3599 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
3600 dnl the wrappers for gcc and g++ warnings.
3601 dnl
3602 dnl $1 = GCC (default) or GXX
3603 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
3604 dnl $3 = CFLAGS (default) or CXXFLAGS
3605 AC_DEFUN([CF_INTEL_COMPILER],[
3606 AC_REQUIRE([AC_CANONICAL_HOST])
3607 ifelse([$2],,INTEL_COMPILER,[$2])=no
3608
3609 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
3610         case $host_os in
3611         (linux*|gnu*)
3612                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
3613                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
3614                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
3615                 AC_TRY_COMPILE([],[
3616 #ifdef __INTEL_COMPILER
3617 #else
3618 make an error
3619 #endif
3620 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
3621 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
3622 ],[])
3623                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
3624                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
3625                 ;;
3626         esac
3627 fi
3628 ])dnl
3629 dnl ---------------------------------------------------------------------------
3630 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
3631 dnl ----------
3632 dnl Check if we have either a function or macro for 'isascii()'.
3633 AC_DEFUN([CF_ISASCII],
3634 [
3635 AC_MSG_CHECKING(for isascii)
3636 AC_CACHE_VAL(cf_cv_have_isascii,[
3637         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
3638         [cf_cv_have_isascii=yes],
3639         [cf_cv_have_isascii=no])
3640 ])dnl
3641 AC_MSG_RESULT($cf_cv_have_isascii)
3642 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
3643 ])dnl
3644 dnl ---------------------------------------------------------------------------
3645 dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
3646 dnl ------------
3647 dnl Add checks for large file support.
3648 AC_DEFUN([CF_LARGEFILE],[
3649 ifdef([AC_FUNC_FSEEKO],[
3650         AC_SYS_LARGEFILE
3651         if test "$enable_largefile" != no ; then
3652         AC_FUNC_FSEEKO
3653
3654         # Normally we would collect these definitions in the config.h,
3655         # but (like _XOPEN_SOURCE), some environments rely on having these
3656         # defined before any of the system headers are included.  Another
3657         # case comes up with C++, e.g., on AIX the compiler compiles the
3658         # header files by themselves before looking at the body files it is
3659         # told to compile.  For ncurses, those header files do not include
3660         # the config.h
3661         if test "$ac_cv_sys_large_files" != no
3662         then
3663                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
3664         fi
3665         if test "$ac_cv_sys_largefile_source" != no
3666         then
3667                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
3668         fi
3669         if test "$ac_cv_sys_file_offset_bits" != no
3670         then
3671                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
3672         fi
3673
3674         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
3675                 AC_TRY_COMPILE([
3676 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
3677 #include <sys/types.h>
3678 #include <dirent.h>
3679                 ],[
3680                 /* if transitional largefile support is setup, this is true */
3681                 extern struct dirent64 * readdir(DIR *);
3682                 struct dirent64 *x = readdir((DIR *)0);
3683                 struct dirent *y = readdir((DIR *)0);
3684                 int z = x - y;
3685                 ],
3686                 [cf_cv_struct_dirent64=yes],
3687                 [cf_cv_struct_dirent64=no])
3688         ])
3689         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
3690         fi
3691 ])
3692 ])
3693 dnl ---------------------------------------------------------------------------
3694 dnl CF_LDFLAGS_STATIC version: 12 updated: 2015/04/18 08:56:57
3695 dnl -----------------
3696 dnl Check for compiler/linker flags used to temporarily force usage of static
3697 dnl libraries.  This depends on the compiler and platform.  Use this to help
3698 dnl ensure that the linker picks up a given library based on its position in
3699 dnl the list of linker options and libraries.
3700 AC_DEFUN([CF_LDFLAGS_STATIC],[
3701
3702 if test "$GCC" = yes ; then
3703         case $cf_cv_system_name in
3704         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
3705                 LDFLAGS_STATIC=
3706                 LDFLAGS_SHARED=
3707                 ;;
3708         (*)     # normally, except when broken
3709                 LDFLAGS_STATIC=-static
3710                 LDFLAGS_SHARED=-dynamic
3711                 ;;
3712         esac
3713 else
3714         case $cf_cv_system_name in
3715         (aix[[4-7]]*)   # from ld manpage
3716                 LDFLAGS_STATIC=-bstatic
3717                 LDFLAGS_SHARED=-bdynamic
3718                 ;;
3719         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
3720                 # We could also use just "archive" and "shared".
3721                 LDFLAGS_STATIC=-Wl,-a,archive_shared
3722                 LDFLAGS_SHARED=-Wl,-a,shared_archive
3723                 ;;
3724         (irix*)         # from ld manpage IRIX64
3725                 LDFLAGS_STATIC=-Bstatic
3726                 LDFLAGS_SHARED=-Bdynamic
3727                 ;;
3728         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
3729                 # alternative "-oldstyle_liblookup" (not in cc manpage)
3730                 LDFLAGS_STATIC=-noso
3731                 LDFLAGS_SHARED=-so_archive
3732                 ;;
3733         (solaris2*)
3734                 LDFLAGS_STATIC=-Bstatic
3735                 LDFLAGS_SHARED=-Bdynamic
3736                 ;;
3737         esac
3738 fi
3739
3740 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
3741 then
3742         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
3743
3744         rm -f libconftest.a
3745         cat >conftest.$ac_ext <<EOF
3746 #line __oline__ "configure"
3747 #include <stdio.h>
3748 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
3749 EOF
3750         if AC_TRY_EVAL(ac_compile) ; then
3751                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
3752                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
3753         fi
3754         rm -f conftest.*
3755
3756         cf_save_LIBS="$LIBS"
3757
3758         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
3759         AC_TRY_LINK([
3760 #line __oline__ "configure"
3761 #include <stdio.h>
3762 int cf_ldflags_static(FILE *fp);
3763 ],[
3764         return cf_ldflags_static(stdin);
3765 ],[
3766         # some linkers simply ignore the -dynamic
3767         case x`file conftest$ac_exeext 2>/dev/null` in
3768         (*static*)
3769                 cf_ldflags_static=no
3770                 ;;
3771         (*)
3772                 cf_ldflags_static=yes
3773                 ;;
3774         esac
3775 ],[cf_ldflags_static=no])
3776
3777         rm -f libconftest.*
3778         LIBS="$cf_save_LIBS"
3779
3780         AC_MSG_RESULT($cf_ldflags_static)
3781
3782         if test $cf_ldflags_static != yes
3783         then
3784                 LDFLAGS_STATIC=
3785                 LDFLAGS_SHARED=
3786         fi
3787 else
3788         LDFLAGS_STATIC=
3789         LDFLAGS_SHARED=
3790 fi
3791
3792 AC_SUBST(LDFLAGS_STATIC)
3793 AC_SUBST(LDFLAGS_SHARED)
3794 ])
3795 dnl ---------------------------------------------------------------------------
3796 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
3797 dnl ---------------
3798 dnl For the given system and compiler, find the compiler flags to pass to the
3799 dnl loader to use the "rpath" feature.
3800 AC_DEFUN([CF_LD_RPATH_OPT],
3801 [
3802 AC_REQUIRE([CF_CHECK_CACHE])
3803
3804 LD_RPATH_OPT=
3805 if test "x$cf_cv_enable_rpath" != xno
3806 then
3807         AC_MSG_CHECKING(for an rpath option)
3808         case $cf_cv_system_name in
3809         (irix*)
3810                 if test "$GCC" = yes; then
3811                         LD_RPATH_OPT="-Wl,-rpath,"
3812                 else
3813                         LD_RPATH_OPT="-rpath "
3814                 fi
3815                 ;;
3816         (linux*|gnu*|k*bsd*-gnu|freebsd*)
3817                 LD_RPATH_OPT="-Wl,-rpath,"
3818                 ;;
3819         (openbsd[[2-9]].*|mirbsd*)
3820                 LD_RPATH_OPT="-Wl,-rpath,"
3821                 ;;
3822         (dragonfly*)
3823                 LD_RPATH_OPT="-rpath "
3824                 ;;
3825         (netbsd*)
3826                 LD_RPATH_OPT="-Wl,-rpath,"
3827                 ;;
3828         (osf*|mls+*)
3829                 LD_RPATH_OPT="-rpath "
3830                 ;;
3831         (solaris2*)
3832                 LD_RPATH_OPT="-R"
3833                 ;;
3834         (*)
3835                 ;;
3836         esac
3837         AC_MSG_RESULT($LD_RPATH_OPT)
3838
3839         case "x$LD_RPATH_OPT" in
3840         (x-R*)
3841                 AC_MSG_CHECKING(if we need a space after rpath option)
3842                 cf_save_LIBS="$LIBS"
3843                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
3844                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
3845                 LIBS="$cf_save_LIBS"
3846                 AC_MSG_RESULT($cf_rpath_space)
3847                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
3848                 ;;
3849         esac
3850 fi
3851 ])dnl
3852 dnl ---------------------------------------------------------------------------
3853 dnl CF_LD_SEARCHPATH version: 2 updated: 2019/09/26 20:34:14
3854 dnl ----------------
3855 dnl Try to obtain the linker's search-path, for use in scripts.
3856 dnl
3857 dnl Ignore LD_LIBRARY_PATH, etc.
3858 AC_DEFUN([CF_LD_SEARCHPATH],[
3859 AC_CACHE_CHECK(for linker search path,cf_cv_ld_searchpath,[
3860
3861 if test "$cross_compiling" != yes ; then
3862
3863 # GNU binutils' ld does not involve permissions which may stop ldconfig.
3864 cf_pathlist=`ld --verbose 2>/dev/null | grep SEARCH_DIR | sed -e 's,SEARCH_DIR[[("=]][[("=]]*,,g' -e 's/"[[)]];//gp' | sort -u`
3865
3866 # The -NX options tell newer versions of Linux ldconfig to not attempt to
3867 # update the cache, which makes it run faster.
3868 test -z "$cf_pathlist" && \
3869         cf_pathlist=`ldconfig -NX -v 2>/dev/null | sed -e '/^[[         ]]/d' -e 's/:$//' | sort -u`
3870
3871 test -z "$cf_pathlist" &&
3872         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e '/^[[  ]]/d' -e 's/:$//p' | sort -u`
3873
3874 # This works with OpenBSD 6.5, which lists only filenames
3875 test -z "$cf_pathlist" &&
3876         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e 's,^Adding \(.*\)/.*[$],\1,p' | sort -u`
3877
3878 if test -z "$cf_pathlist"
3879 then
3880         # dyld default path with MacOS
3881         if test -f /usr/bin/otool && test "x`uname -s`" = xDarwin
3882         then
3883                 # do this to bypass check
3884                 cf_cv_ld_searchpath='$HOME/lib'
3885                 cf_pathlist="/usr/local/lib /lib /usr/lib"
3886         fi
3887 fi
3888
3889 if test -z "$cf_pathlist"
3890 then
3891         # Solaris is hardcoded
3892         if test -d /opt/SUNWspro/lib
3893         then
3894                 cf_pathlist="/opt/SUNWspro/lib /usr/ccs/lib /usr/lib"
3895         elif test -d /usr/ccs/lib
3896         then
3897                 cf_pathlist="/usr/ccs/lib /usr/lib"
3898         fi
3899 fi
3900
3901 fi
3902
3903 # If nothing else, assume it is conventional
3904 test -z "$cf_pathlist" && cf_pathlist="/usr/lib /lib"
3905
3906 # Finally, check that this is only directories
3907 for cf_path in [$]0 $cf_pathlist
3908 do
3909         if test -d "$cf_path"; then
3910                 test -n "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath="${cf_cv_ld_searchpath} "
3911                 cf_cv_ld_searchpath="${cf_cv_ld_searchpath}${cf_path}"
3912         fi
3913 done
3914
3915 # Ensure that it is nonempty
3916 test -z "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath=/usr/lib
3917 ])
3918
3919 LD_SEARCHPATH=`echo "$cf_cv_ld_searchpath"|sed -e 's/ /|/g'`
3920 AC_SUBST(LD_SEARCHPATH)
3921 ])dnl
3922 dnl ---------------------------------------------------------------------------
3923 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
3924 dnl ---------------
3925 dnl Construct a search-list of directories for a nonstandard library-file
3926 dnl
3927 dnl Parameters
3928 dnl     $1 = the variable to return as result
3929 dnl     $2 = the package name
3930 AC_DEFUN([CF_LIBRARY_PATH],
3931 [
3932 $1=
3933 cf_library_path_list=""
3934 if test -n "${LDFLAGS}${LIBS}" ; then
3935         for cf_library_path in $LDFLAGS $LIBS
3936         do
3937                 case $cf_library_path in
3938                 (-L*)
3939                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
3940                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
3941                         cf_library_path_list="$cf_library_path_list [$]$1"
3942                         ;;
3943                 esac
3944         done
3945 fi
3946
3947 CF_SUBDIR_PATH($1,$2,lib)
3948
3949 $1="$cf_library_path_list [$]$1"
3950 ])dnl
3951 dnl ---------------------------------------------------------------------------
3952 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
3953 dnl ------------------
3954 AC_DEFUN([CF_LIBTOOL_VERSION],[
3955 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
3956 then
3957         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
3958 else
3959         cf_cv_libtool_version=
3960 fi
3961 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
3962 ])dnl
3963 dnl ---------------------------------------------------------------------------
3964 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
3965 dnl -------------
3966 dnl Compute the library-prefix for the given host system
3967 dnl $1 = variable to set
3968 define([CF_LIB_PREFIX],
3969 [
3970         case $cf_cv_system_name in
3971         (OS/2*|os2*)
3972                 if test "$DFT_LWR_MODEL" = libtool; then
3973                         LIB_PREFIX='lib'
3974                 else
3975                         LIB_PREFIX=''
3976                 fi
3977                 ;;
3978         (*)     LIB_PREFIX='lib'
3979                 ;;
3980         esac
3981 ifelse($1,,,[$1=$LIB_PREFIX])
3982         AC_SUBST(LIB_PREFIX)
3983 ])dnl
3984 dnl ---------------------------------------------------------------------------
3985 dnl CF_LIB_RULES version: 88 updated: 2018/08/18 12:19:21
3986 dnl ------------
3987 dnl Append definitions and rules for the given models to the subdirectory
3988 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
3989 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
3990 dnl the corresponding makefile to list the models that we'll generate.
3991 dnl
3992 dnl For shared libraries, make a list of symbolic links to construct when
3993 dnl generating each library.  The convention used for Linux is the simplest
3994 dnl one:
3995 dnl     lib<name>.so    ->
3996 dnl     lib<name>.so.<major>    ->
3997 dnl     lib<name>.so.<maj>.<minor>
3998 dnl
3999 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
4000 AC_DEFUN([CF_LIB_RULES],
4001 [
4002 cf_prefix=$LIB_PREFIX
4003 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
4004
4005 case $cf_cv_shlib_version in
4006 (cygdll|msysdll|mingw)
4007         TINFO_NAME=$TINFO_ARG_SUFFIX
4008         TINFO_SUFFIX=.dll
4009         ;;
4010 esac
4011
4012 if test -n "$TINFO_SUFFIX" ; then
4013         case $TINFO_SUFFIX in
4014         (tw*)
4015                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
4016                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^tw'$EXTRA_SUFFIX'//'`
4017                 ;;
4018         (t*)
4019                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
4020                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^t'$EXTRA_SUFFIX'//'`
4021                 ;;
4022         (w*)
4023                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
4024                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^w'$EXTRA_SUFFIX'//'`
4025                 ;;
4026         esac
4027 fi
4028
4029 for cf_dir in $SRC_SUBDIRS
4030 do
4031         if test ! -d $srcdir/$cf_dir ; then
4032                 continue
4033         elif test -f $srcdir/$cf_dir/modules; then
4034
4035                 SHARED_LIB=
4036                 Libs_To_Make=
4037                 cf_awk_program=
4038                 if test -n "${cf_cv_abi_version}" && test "x${cf_cv_abi_version}" != "x5"
4039                 then
4040                         cf_awk_program="$cf_awk_program\
4041 /deprecated in ABI${cf_cv_abi_version}/ { next; }\
4042 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_version}\"); }\
4043 "
4044                 fi
4045
4046                 if test "x$WILDCARD_SYMS" = xno
4047                 then
4048                         cf_awk_program="$cf_awk_program\
4049 /[[     ]]_\\*;/ { skip=1; next; }\
4050 "
4051                 fi
4052
4053                 if test "x$cf_awk_program" != "x"
4054                 then
4055                         cat >>$cf_dir/Makefile <<CF_EOF
4056
4057 # Generated by CF_LIB_RULES
4058 resulting.map: $UNALTERED_SYMS
4059         $AWK 'BEGIN { skip = 1; last=""; } \
4060 $cf_awk_program \
4061 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
4062  skip = 0; last = \[$]\[$]0; } \
4063 END { print last; }' < $UNALTERED_SYMS >\[$]@
4064
4065 distclean::
4066         rm -f resulting.map
4067 CF_EOF
4068                 fi
4069
4070                 for cf_item in $cf_LIST_MODELS
4071                 do
4072                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4073                         cf_libname=$cf_dir
4074                         test "$cf_dir" = c++ && cf_libname=ncurses++
4075                         if test $cf_item = shared ; then
4076                                 if test -n "${LIB_SUFFIX}"
4077                                 then
4078                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4079                                 else
4080                                         cf_shared_suffix="$cf_suffix"
4081                                 fi
4082                                 if test "$cf_cv_do_symlinks" = yes ; then
4083                                         cf_version_name=
4084
4085                                         case "$cf_cv_shlib_version" in
4086                                         (rel)
4087                                                 cf_version_name=REL_VERSION
4088                                                 ;;
4089                                         (abi)
4090                                                 cf_version_name=ABI_VERSION
4091                                                 ;;
4092                                         esac
4093
4094                                         if test -n "$cf_version_name"
4095                                         then
4096                                                 case "$cf_cv_system_name" in
4097                                                 (darwin*)
4098                                                         # "w", etc?
4099                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
4100                                                         ;;
4101                                                 (*)
4102                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
4103                                                         ;;
4104                                                 esac
4105                                         fi
4106                                         if test -n "${USE_LIB_SUFFIX}"
4107                                         then
4108                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4109                                         else
4110                                                 cf_shared_suffix="$cf_suffix"
4111                                         fi
4112                                 fi
4113                                 # cygwin needs import library, and has unique naming convention
4114                                 # use autodetected ${cf_prefix} for import lib and static lib, but
4115                                 # use 'cyg' prefix for shared lib.
4116                                 case $cf_cv_shlib_version in
4117                                 (cygdll)
4118                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4119                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
4120                                         ;;
4121                                 (msysdll)
4122                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4123                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
4124                                         ;;
4125                                 (mingw)
4126                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4127                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
4128                                         ;;
4129                                 (*)
4130                                         cf_add_lib=
4131                                         ;;
4132                                 esac
4133                                 if test -n "$cf_add_lib"
4134                                 then
4135                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4136                                         continue
4137                                 fi
4138                         fi
4139                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
4140                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4141                 done
4142
4143                 if test $cf_dir = ncurses ; then
4144                         cf_subsets="$LIB_SUBSETS"
4145                         cf_r_parts="$cf_subsets"
4146                         cf_liblist="$Libs_To_Make"
4147
4148                         while test -n "$cf_r_parts"
4149                         do
4150                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
4151                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
4152                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
4153                                         cf_add_lib=
4154                                         case $cf_l_parts in
4155                                         (*termlib*)
4156                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
4157                                                 ;;
4158                                         (*ticlib*)
4159                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
4160                                                 ;;
4161                                         (*)
4162                                                 break
4163                                                 ;;
4164                                         esac
4165                                         if test -n "$cf_add_lib"; then
4166                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
4167                                         fi
4168                                 else
4169                                         break
4170                                 fi
4171                         done
4172                 else
4173                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
4174                 fi
4175
4176                 if test $cf_dir = c++; then
4177                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then
4178                                 cf_list=
4179                                 for cf_item in $Libs_To_Make
4180                                 do
4181                                         case $cf_item in
4182                                         (*.a)
4183                                                 ;;
4184                                         (*)
4185                                                 cf_item=`echo "$cf_item" | sed -e "s,"$cf_shared_suffix",.a,"`
4186                                                 ;;
4187                                         esac
4188                                         for cf_test in $cf_list
4189                                         do
4190                                                 if test "$cf_test" = "$cf_item"
4191                                                 then
4192                                                         cf_LIST_MODELS=`echo "$cf_LIST_MODELS" | sed -e 's/normal//'`
4193                                                         cf_item=
4194                                                         break
4195                                                 fi
4196                                         done
4197                                         test -n "$cf_item" && cf_list="$cf_list $cf_item"
4198                                 done
4199                                 Libs_To_Make="$cf_list"
4200                         fi
4201                 fi
4202
4203                 sed -e "s%@Libs_To_Make@%$Libs_To_Make%" \
4204                     -e "s%@SHARED_LIB@%$SHARED_LIB%" \
4205                         $cf_dir/Makefile >$cf_dir/Makefile.out
4206                 mv $cf_dir/Makefile.out $cf_dir/Makefile
4207
4208                 $AWK -f $srcdir/mk-0th.awk \
4209                         libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
4210                         $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4211
4212                 for cf_subset in $cf_subsets
4213                 do
4214                         cf_subdirs=
4215                         for cf_item in $cf_LIST_MODELS
4216                         do
4217
4218                         echo "Appending rules for ${cf_item} model (${cf_dir}: ${cf_subset})"
4219                         CF_UPPER(cf_ITEM,$cf_item)
4220
4221                         CXX_MODEL=$cf_ITEM
4222                         if test "$CXX_MODEL" = SHARED; then
4223                                 case $cf_cv_shlib_version in
4224                                 (cygdll|msysdll|mingw)
4225                                         test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
4226                                         with_shared_cxx=yes
4227                                         ;;
4228                                 (*)
4229                                         test "x$with_shared_cxx" = xno && CXX_MODEL=NORMAL
4230                                         ;;
4231                                 esac
4232                         fi
4233
4234                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4235                         CF_OBJ_SUBDIR($cf_item,cf_subdir)
4236
4237                         # Test for case where we build libtinfo with a different name.
4238                         cf_libname=$cf_dir
4239                         if test $cf_dir = ncurses ; then
4240                                 case $cf_subset in
4241                                 (*base*)
4242                                         cf_libname=${cf_libname}$USE_LIB_SUFFIX
4243                                         ;;
4244                                 (*termlib*)
4245                                         cf_libname=$TINFO_LIB_SUFFIX
4246                                         ;;
4247                                 (ticlib*)
4248                                         cf_libname=$TICS_LIB_SUFFIX
4249                                         ;;
4250                                 esac
4251                         elif test $cf_dir = c++ ; then
4252                                 cf_libname=ncurses++$USE_LIB_SUFFIX
4253                         else
4254                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
4255                         fi
4256                         if test -n "${USE_ARG_SUFFIX}" ; then
4257                                 # undo $USE_LIB_SUFFIX add-on in CF_LIB_SUFFIX
4258                                 cf_suffix=`echo $cf_suffix |sed -e "s%^${USE_LIB_SUFFIX}%%"`
4259                         fi
4260
4261                         # These dependencies really are for development, not
4262                         # builds, but they are useful in porting, too.
4263                         cf_depend="../include/ncurses_cfg.h"
4264                         if test "$srcdir" = "."; then
4265                                 cf_reldir="."
4266                         else
4267                                 cf_reldir="\${srcdir}"
4268                         fi
4269
4270                         if test -f $srcdir/$cf_dir/$cf_dir.priv.h; then
4271                                 cf_depend="$cf_depend $cf_reldir/$cf_dir.priv.h"
4272                         elif test -f $srcdir/$cf_dir/curses.priv.h; then
4273                                 cf_depend="$cf_depend $cf_reldir/curses.priv.h"
4274                         fi
4275
4276                         cf_dir_suffix=
4277                         old_cf_suffix="$cf_suffix"
4278                         if test "$cf_cv_shlib_version_infix" = yes ; then
4279                         if test -n "$USE_LIB_SUFFIX" ; then
4280                                 case $USE_LIB_SUFFIX in
4281                                 (tw*)
4282                                         cf_libname=`echo $cf_libname | sed 's/tw'$EXTRA_SUFFIX'$//'`
4283                                         cf_suffix=`echo $cf_suffix | sed 's/^tw'$EXTRA_SUFFIX'//'`
4284                                         cf_dir_suffix=tw$EXTRA_SUFFIX
4285                                         ;;
4286                                 (t*)
4287                                         cf_libname=`echo $cf_libname | sed 's/t'$EXTRA_SUFFIX'$//'`
4288                                         cf_suffix=`echo $cf_suffix | sed 's/^t'$EXTRA_SUFFIX'//'`
4289                                         cf_dir_suffix=t$EXTRA_SUFFIX
4290                                         ;;
4291                                 (w*)
4292                                         cf_libname=`echo $cf_libname | sed 's/w'$EXTRA_SUFFIX'$//'`
4293                                         cf_suffix=`echo $cf_suffix | sed 's/^w'$EXTRA_SUFFIX'//'`
4294                                         cf_dir_suffix=w$EXTRA_SUFFIX
4295                                         ;;
4296                                 (*)
4297                                         cf_libname=`echo $cf_libname | sed 's/'$EXTRA_SUFFIX'$//'`
4298                                         cf_suffix=`echo $cf_suffix | sed 's/^'$EXTRA_SUFFIX'//'`
4299                                         cf_dir_suffix=$EXTRA_SUFFIX
4300                                         ;;
4301                                 esac
4302                         fi
4303                         fi
4304
4305                         $AWK -f $srcdir/mk-1st.awk \
4306                                 name=${cf_libname}${cf_dir_suffix} \
4307                                 traces=$LIB_TRACING \
4308                                 MODEL=$cf_ITEM \
4309                                 CXX_MODEL=$CXX_MODEL \
4310                                 model=$cf_subdir \
4311                                 prefix=$cf_prefix \
4312                                 suffix=$cf_suffix \
4313                                 subset=$cf_subset \
4314                                 driver=$cf_cv_term_driver \
4315                                 SymLink="$LN_S" \
4316                                 TermlibRoot=$TINFO_NAME \
4317                                 TermlibSuffix=$TINFO_SUFFIX \
4318                                 ShlibVer=$cf_cv_shlib_version \
4319                                 ShlibVerInfix=$cf_cv_shlib_version_infix \
4320                                 ReLink=${cf_cv_do_relink:-no} \
4321                                 ReRanlib=${cf_cv_do_reranlib:-yes} \
4322                                 DoLinks=$cf_cv_do_symlinks \
4323                                 rmSoLocs=$cf_cv_rm_so_locs \
4324                                 ldconfig="$LDCONFIG" \
4325                                 overwrite=$WITH_OVERWRITE \
4326                                 depend="$cf_depend" \
4327                                 host="$host" \
4328                                 libtool_version="$LIBTOOL_VERSION" \
4329                                 $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4330
4331                         cf_suffix="$old_cf_suffix"
4332
4333                         for cf_subdir2 in $cf_subdirs lib
4334                         do
4335                                 test $cf_subdir = $cf_subdir2 && break
4336                         done
4337                         test "${cf_subset}.${cf_subdir2}" != "${cf_subset}.${cf_subdir}" && \
4338                         $AWK -f $srcdir/mk-2nd.awk \
4339                                 name=$cf_dir \
4340                                 traces=$LIB_TRACING \
4341                                 MODEL=$cf_ITEM \
4342                                 model=$cf_subdir \
4343                                 subset=$cf_subset \
4344                                 srcdir=$srcdir \
4345                                 echo=$WITH_ECHO \
4346                                 crenames=$cf_cv_prog_CC_c_o \
4347                                 cxxrenames=$cf_cv_prog_CXX_c_o \
4348                                 $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4349                         cf_subdirs="$cf_subdirs $cf_subdir"
4350                         done
4351                 done
4352         fi
4353
4354         echo '  cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@' >>Makefile
4355 done
4356
4357 for cf_dir in $SRC_SUBDIRS
4358 do
4359         if test ! -d $srcdir/$cf_dir ; then
4360                 continue
4361         fi
4362
4363         if test -f $cf_dir/Makefile ; then
4364                 case "$cf_dir" in
4365                 (Ada95)
4366                         echo 'libs \' >> Makefile
4367                         echo 'install.libs \' >> Makefile
4368                         echo 'uninstall.libs ::' >> Makefile
4369                         echo '  cd '$cf_dir' && ${MAKE} ${TOP_MFLAGS} [$]@' >> Makefile
4370                         ;;
4371                 esac
4372         fi
4373
4374         if test -f $srcdir/$cf_dir/modules; then
4375                 echo >> Makefile
4376                 if test -f $srcdir/$cf_dir/headers; then
4377 cat >> Makefile <<CF_EOF
4378 install.includes \\
4379 uninstall.includes \\
4380 CF_EOF
4381                 fi
4382 if test "$cf_dir" != "c++" ; then
4383 echo 'lint \' >> Makefile
4384 fi
4385 cat >> Makefile <<CF_EOF
4386 libs \\
4387 lintlib \\
4388 install.libs \\
4389 uninstall.libs \\
4390 install.$cf_dir \\
4391 uninstall.$cf_dir ::
4392         cd $cf_dir && \${MAKE} \${TOP_MFLAGS} \[$]@
4393 CF_EOF
4394         elif test -f $srcdir/$cf_dir/headers; then
4395 cat >> Makefile <<CF_EOF
4396
4397 libs \\
4398 install.libs \\
4399 uninstall.libs \\
4400 install.includes \\
4401 uninstall.includes ::
4402         cd $cf_dir && \${MAKE} \${TOP_MFLAGS} \[$]@
4403 CF_EOF
4404 fi
4405 done
4406
4407 if test "x$cf_with_db_install" = xyes; then
4408 cat >> Makefile <<CF_EOF
4409
4410 install.libs uninstall.libs \\
4411 install.data uninstall.data ::
4412 $MAKE_TERMINFO  cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@
4413 CF_EOF
4414 else
4415 cat >> Makefile <<CF_EOF
4416
4417 install.libs uninstall.libs ::
4418         cd misc && \${MAKE} \${TOP_MFLAGS} \[$]@
4419 CF_EOF
4420 fi
4421
4422 if test "x$cf_with_manpages" = xyes; then
4423 cat >> Makefile <<CF_EOF
4424
4425 install.man \\
4426 uninstall.man ::
4427         cd man && \${MAKE} \${TOP_MFLAGS} \[$]@
4428 CF_EOF
4429 fi
4430
4431 cat >> Makefile <<CF_EOF
4432
4433 distclean ::
4434         rm -f config.cache config.log config.status Makefile include/ncurses_cfg.h
4435         rm -f headers.sh headers.sed mk_shared_lib.sh
4436         rm -f edit_man.* man_alias.*
4437         rm -rf \${DIRS_TO_MAKE}
4438 CF_EOF
4439
4440 # Special case: tack's manpage lives in its own directory.
4441 if test "x$cf_with_manpages" = xyes; then
4442 if test "x$cf_with_tack" = "xyes"; then
4443 cat >> Makefile <<CF_EOF
4444
4445 install.man \\
4446 uninstall.man ::
4447         cd tack && \${MAKE} \${TOP_MFLAGS} \[$]@
4448 CF_EOF
4449 fi
4450 fi
4451
4452 dnl If we're installing into a subdirectory of /usr/include, etc., we should
4453 dnl prepend the subdirectory's name to the "#include" paths.  It won't hurt
4454 dnl anything, and will make it more standardized.  It's awkward to decide this
4455 dnl at configuration because of quoting, so we'll simply make all headers
4456 dnl installed via a script that can do the right thing.
4457
4458 rm -f headers.sed headers.sh
4459
4460 dnl ( generating this script makes the makefiles a little tidier :-)
4461 echo creating headers.sh
4462 cat >headers.sh <<CF_EOF
4463 #! $SHELL
4464 # This shell script is generated by the 'configure' script.  It is invoked in a
4465 # subdirectory of the build tree.  It generates a sed-script in the parent
4466 # directory that is used to adjust includes for header files that reside in a
4467 # subdirectory of /usr/include, etc.
4468 PRG=""
4469 while test \[$]# != 3
4470 do
4471 PRG="\$PRG \[$]1"; shift
4472 done
4473 DST=\[$]1
4474 REF=\[$]2
4475 SRC=\[$]3
4476 TMPSRC=\${TMPDIR:-/tmp}/\`basename \$SRC\`\$\$
4477 TMPSED=\${TMPDIR:-/tmp}/headers.sed\$\$
4478 echo installing \$SRC in \$DST
4479 CF_EOF
4480
4481 if test $WITH_CURSES_H = yes; then
4482         cat >>headers.sh <<CF_EOF
4483 case \$DST in
4484 (/*/include/*)
4485         END=\`basename \$DST\`
4486         for i in \`cat \$REF/../*/headers |fgrep -v "#"\`
4487         do
4488                 NAME=\`basename \$i\`
4489                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
4490         done
4491         ;;
4492 (*)
4493         echo "" >> \$TMPSED
4494         ;;
4495 esac
4496 CF_EOF
4497
4498 else
4499         cat >>headers.sh <<CF_EOF
4500 case \$DST in
4501 (/*/include/*)
4502         END=\`basename \$DST\`
4503         for i in \`cat \$REF/../*/headers |fgrep -v "#"\`
4504         do
4505                 NAME=\`basename \$i\`
4506                 if test "\$NAME" = "curses.h"
4507                 then
4508                         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
4509                         NAME=ncurses.h
4510                 fi
4511                 echo "s/<\$NAME>/<\$END\/\$NAME>/" >> \$TMPSED
4512         done
4513         ;;
4514 (*)
4515         echo "s/<curses.h>/<ncurses.h>/" >> \$TMPSED
4516         ;;
4517 esac
4518 CF_EOF
4519 fi
4520 cat >>headers.sh <<CF_EOF
4521 rm -f \$TMPSRC
4522 sed -f \$TMPSED \$SRC > \$TMPSRC
4523 NAME=\`basename \$SRC\`
4524 CF_EOF
4525 if test $WITH_CURSES_H != yes; then
4526         cat >>headers.sh <<CF_EOF
4527 test "\$NAME" = "curses.h" && NAME=ncurses.h
4528 CF_EOF
4529 fi
4530 cat >>headers.sh <<CF_EOF
4531 # Just in case someone gzip'd manpages, remove the conflicting copy.
4532 test -f \$DST/\$NAME.gz && rm -f \$DST/\$NAME.gz
4533
4534 eval \$PRG \$TMPSRC \$DST/\$NAME
4535 rm -f \$TMPSRC \$TMPSED
4536 CF_EOF
4537
4538 chmod 0755 headers.sh
4539
4540 for cf_dir in $SRC_SUBDIRS
4541 do
4542         if test ! -d $srcdir/$cf_dir ; then
4543                 continue
4544         fi
4545
4546         if test -f $srcdir/$cf_dir/headers; then
4547                 $AWK -f $srcdir/mk-hdr.awk \
4548                         subset="$LIB_SUBSETS" \
4549                         compat="$WITH_CURSES_H" \
4550                         $srcdir/$cf_dir/headers >>$cf_dir/Makefile
4551         fi
4552
4553         if test -f $srcdir/$cf_dir/modules; then
4554                 if test "$cf_dir" != "c++" ; then
4555                         cat >>$cf_dir/Makefile <<"CF_EOF"
4556 depend : ${AUTO_SRC}
4557         makedepend -- ${CPPFLAGS} -- ${C_SRC}
4558
4559 # DO NOT DELETE THIS LINE -- make depend depends on it.
4560 CF_EOF
4561                 fi
4562         fi
4563 done
4564 AC_SUBST(Libs_To_Make)
4565 ])dnl
4566 dnl ---------------------------------------------------------------------------
4567 dnl CF_LIB_SONAME version: 6 updated: 2017/01/21 11:06:25
4568 dnl -------------
4569 dnl Find the and soname for the given shared library.  Set the cache variable
4570 dnl cf_cv_$3_soname to this, unless it is not found.  Then set the cache
4571 dnl variable to "unknown".
4572 dnl
4573 dnl $1 = headers
4574 dnl $2 = code
4575 dnl $3 = library name
4576 AC_DEFUN([CF_LIB_SONAME],
4577 [
4578 AC_CACHE_CHECK(for soname of $3 library,cf_cv_$3_soname,[
4579
4580 cf_cv_$3_soname=unknown
4581 if test "$cross_compiling" != yes ; then
4582 cat >conftest.$ac_ext <<CF_EOF
4583 $1
4584 int main(void)
4585 {
4586 $2
4587         ${cf_cv_main_return:-return}(0);
4588 }
4589 CF_EOF
4590 cf_save_LIBS="$LIBS"
4591         CF_ADD_LIB($3)
4592         if AC_TRY_EVAL(ac_compile) ; then
4593                 if AC_TRY_EVAL(ac_link) ; then
4594                         cf_cv_$3_soname=`ldd conftest$ac_exeext 2>/dev/null | sed -e 's,^.*/,,' -e 's, .*$,,' | fgrep lib$3.`
4595                         test -z "$cf_cv_$3_soname" && cf_cv_$3_soname=unknown
4596                 fi
4597         fi
4598 rm -rf conftest*
4599 LIBS="$cf_save_LIBS"
4600 fi
4601 ])
4602 ])
4603 dnl ---------------------------------------------------------------------------
4604 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
4605 dnl -------------
4606 dnl Compute the library file-suffix from the given model name
4607 dnl $1 = model name
4608 dnl $2 = variable to set (the nominal library suffix)
4609 dnl $3 = dependency variable to set (actual filename)
4610 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
4611 AC_DEFUN([CF_LIB_SUFFIX],
4612 [
4613         case X$1 in
4614         (Xlibtool)
4615                 $2='.la'
4616                 $3=[$]$2
4617                 ;;
4618         (Xdebug)
4619                 $2='_g.a'
4620                 $3=[$]$2
4621                 ;;
4622         (Xprofile)
4623                 $2='_p.a'
4624                 $3=[$]$2
4625                 ;;
4626         (Xshared)
4627                 case $cf_cv_system_name in
4628                 (aix[[5-7]]*)
4629                         $2='.so'
4630                         $3=[$]$2
4631                         ;;
4632                 (cygwin*|msys*|mingw*)
4633                         $2='.dll'
4634                         $3='.dll.a'
4635                         ;;
4636                 (darwin*)
4637                         $2='.dylib'
4638                         $3=[$]$2
4639                         ;;
4640                 (hpux*)
4641                         case $target in
4642                         (ia64*)
4643                                 $2='.so'
4644                                 $3=[$]$2
4645                                 ;;
4646                         (*)
4647                                 $2='.sl'
4648                                 $3=[$]$2
4649                                 ;;
4650                         esac
4651                         ;;
4652                 (*)
4653                         $2='.so'
4654                         $3=[$]$2
4655                         ;;
4656                 esac
4657                 ;;
4658         (*)
4659                 $2='.a'
4660                 $3=[$]$2
4661                 ;;
4662         esac
4663         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
4664         then
4665                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
4666                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
4667         fi
4668 ])dnl
4669 dnl ---------------------------------------------------------------------------
4670 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
4671 dnl -----------
4672 dnl Compute the string to append to -library from the given model name
4673 dnl $1 = model name
4674 dnl $2 = variable to set
4675 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
4676 AC_DEFUN([CF_LIB_TYPE],
4677 [
4678         case $1 in
4679         (libtool) $2=''   ;;
4680         (normal)  $2=''   ;;
4681         (debug)   $2='_g' ;;
4682         (profile) $2='_p' ;;
4683         (shared)  $2=''   ;;
4684         esac
4685         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
4686 ])dnl
4687 dnl ---------------------------------------------------------------------------
4688 dnl CF_LINK_DATAONLY version: 12 updated: 2017/07/23 17:46:07
4689 dnl ----------------
4690 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
4691 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
4692 dnl have to provide wrappers for global tables to ensure they're linked
4693 dnl properly.
4694 AC_DEFUN([CF_LINK_DATAONLY],
4695 [
4696 AC_MSG_CHECKING([if data-only library module links])
4697 AC_CACHE_VAL(cf_cv_link_dataonly,[
4698         rm -f conftest.a
4699         cat >conftest.$ac_ext <<EOF
4700 #line __oline__ "configure"
4701 int     testdata[[3]] = { 123, 456, 789 };
4702 EOF
4703         if AC_TRY_EVAL(ac_compile) ; then
4704                 mv conftest.o data.o && \
4705                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
4706         fi
4707         rm -f conftest.$ac_ext data.o
4708         cat >conftest.$ac_ext <<EOF
4709 #line __oline__ "configure"
4710 int     testfunc(void)
4711 {
4712 #if defined(NeXT)
4713         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
4714 #else
4715         extern int testdata[[3]];
4716         return testdata[[0]] == 123
4717            &&  testdata[[1]] == 456
4718            &&  testdata[[2]] == 789;
4719 #endif
4720 }
4721 EOF
4722         if AC_TRY_EVAL(ac_compile); then
4723                 mv conftest.o func.o && \
4724                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
4725         fi
4726         rm -f conftest.$ac_ext func.o
4727         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
4728         cf_saveLIBS="$LIBS"
4729         LIBS="conftest.a $LIBS"
4730         AC_TRY_RUN([
4731         int main(void)
4732         {
4733                 extern int testfunc();
4734                 ${cf_cv_main_return:-return} (!testfunc());
4735         }
4736         ],
4737         [cf_cv_link_dataonly=yes],
4738         [cf_cv_link_dataonly=no],
4739         [cf_cv_link_dataonly=unknown])
4740         LIBS="$cf_saveLIBS"
4741         ])
4742 AC_MSG_RESULT($cf_cv_link_dataonly)
4743
4744 if test "$cf_cv_link_dataonly" = no ; then
4745         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
4746         BROKEN_LINKER=1
4747 fi
4748
4749 ])dnl
4750 dnl ---------------------------------------------------------------------------
4751 dnl CF_LINK_FUNCS version: 9 updated: 2017/01/21 11:11:02
4752 dnl -------------
4753 dnl Most Unix systems have both link and symlink, a few don't have symlink.
4754 dnl A few non-Unix systems implement symlink, but not link.
4755 dnl A few non-systems implement neither (or have nonfunctional versions).
4756 AC_DEFUN([CF_LINK_FUNCS],
4757 [
4758 AC_CHECK_HEADERS( \
4759 unistd.h \
4760 )
4761 AC_CHECK_FUNCS( \
4762         remove \
4763         unlink )
4764
4765 if test "$cross_compiling" = yes ; then
4766         AC_CHECK_FUNCS( \
4767                 link \
4768                 symlink )
4769 else
4770         AC_CACHE_CHECK(if link/symlink functions work,cf_cv_link_funcs,[
4771                 cf_cv_link_funcs=
4772                 for cf_func in link symlink ; do
4773                         AC_TRY_RUN([
4774 #include <sys/types.h>
4775 #include <sys/stat.h>
4776 #ifdef HAVE_UNISTD_H
4777 #include <unistd.h>
4778 #endif
4779 int main(void)
4780 {
4781         int fail = 0;
4782         char *src = "config.log";
4783         char *dst = "conftest.chk";
4784         struct stat src_sb;
4785         struct stat dst_sb;
4786
4787         stat(src, &src_sb);
4788         fail = ($cf_func("config.log", "conftest.chk") < 0)
4789             || (stat(dst, &dst_sb) < 0)
4790             || (dst_sb.st_mtime != src_sb.st_mtime);
4791 #ifdef HAVE_UNLINK
4792         unlink(dst);
4793 #else
4794         remove(dst);
4795 #endif
4796         ${cf_cv_main_return:-return} (fail);
4797 }
4798                         ],[
4799                         cf_cv_link_funcs="$cf_cv_link_funcs $cf_func"
4800                         eval 'ac_cv_func_'$cf_func'=yes'],[
4801                         eval 'ac_cv_func_'$cf_func'=no'],[
4802                         eval 'ac_cv_func_'$cf_func'=error'])
4803                 done
4804                 test -z "$cf_cv_link_funcs" && cf_cv_link_funcs=no
4805         ])
4806         test "$ac_cv_func_link"    = yes && AC_DEFINE(HAVE_LINK,1,[Define to 1 if we have link() function])
4807         test "$ac_cv_func_symlink" = yes && AC_DEFINE(HAVE_SYMLINK,1,[Define to 1 if we have symlink() function])
4808 fi
4809 ])dnl
4810 dnl ---------------------------------------------------------------------------
4811 dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
4812 dnl ------------
4813 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
4814 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
4815 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
4816 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
4817 AC_DEFUN([CF_MAKEFLAGS],
4818 [
4819 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
4820         cf_cv_makeflags=''
4821         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
4822         do
4823                 cat >cf_makeflags.tmp <<CF_EOF
4824 SHELL = $SHELL
4825 all :
4826         @ echo '.$cf_option'
4827 CF_EOF
4828                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[   ]]*$,,'`
4829                 case "$cf_result" in
4830                 (.*k|.*kw)
4831                         cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
4832                         case "$cf_result" in
4833                         (.*CC=*)        cf_cv_makeflags=
4834                                 ;;
4835                         (*)     cf_cv_makeflags=$cf_option
4836                                 ;;
4837                         esac
4838                         break
4839                         ;;
4840                 (.-)
4841                         ;;
4842                 (*)
4843                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
4844                         ;;
4845                 esac
4846         done
4847         rm -f cf_makeflags.tmp
4848 ])
4849
4850 AC_SUBST(cf_cv_makeflags)
4851 ])dnl
4852 dnl ---------------------------------------------------------------------------
4853 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
4854 dnl ------------
4855 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
4856 dnl a monocase filesystem.
4857 AC_DEFUN([CF_MAKE_TAGS],[
4858 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
4859
4860 AC_CHECK_PROGS(CTAGS, exctags ctags)
4861 AC_CHECK_PROGS(ETAGS, exetags etags)
4862
4863 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
4864
4865 if test "$cf_cv_mixedcase" = yes ; then
4866         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
4867 else
4868         MAKE_UPPER_TAGS=no
4869 fi
4870
4871 if test "$MAKE_UPPER_TAGS" = yes ; then
4872         MAKE_UPPER_TAGS=
4873 else
4874         MAKE_UPPER_TAGS="#"
4875 fi
4876
4877 if test "$MAKE_LOWER_TAGS" = yes ; then
4878         MAKE_LOWER_TAGS=
4879 else
4880         MAKE_LOWER_TAGS="#"
4881 fi
4882
4883 AC_SUBST(CTAGS)
4884 AC_SUBST(ETAGS)
4885
4886 AC_SUBST(MAKE_UPPER_TAGS)
4887 AC_SUBST(MAKE_LOWER_TAGS)
4888 ])dnl
4889 dnl ---------------------------------------------------------------------------
4890 dnl CF_MANPAGE_FORMAT version: 11 updated: 2015/04/18 08:56:57
4891 dnl -----------------
4892 dnl Option to allow user to override automatic configuration of manpage format.
4893 dnl There are several special cases:
4894 dnl
4895 dnl     gzip - man checks for, can display gzip'd files
4896 dnl     compress - man checks for, can display compressed files
4897 dnl     BSDI - files in the cat-directories are suffixed ".0"
4898 dnl     formatted - installer should format (put files in cat-directory)
4899 dnl     catonly - installer should only format, e.g., for a turnkey system.
4900 dnl
4901 dnl There are other configurations which this macro does not test, e.g., HPUX's
4902 dnl compressed manpages (but uncompressed manpages are fine, and HPUX's naming
4903 dnl convention would not match our use).
4904 AC_DEFUN([CF_MANPAGE_FORMAT],
4905 [
4906 AC_REQUIRE([CF_PATHSEP])
4907 AC_MSG_CHECKING(format of man-pages)
4908
4909 AC_ARG_WITH(manpage-format,
4910         [  --with-manpage-format   specify manpage-format: gzip/compress/BSDI/normal and
4911                           optionally formatted/catonly, e.g., gzip,formatted],
4912         [MANPAGE_FORMAT=$withval],
4913         [MANPAGE_FORMAT=unknown])
4914
4915 test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=unknown
4916 MANPAGE_FORMAT=`echo "$MANPAGE_FORMAT" | sed -e 's/,/ /g'`
4917
4918 cf_unknown=
4919
4920 case $MANPAGE_FORMAT in
4921 (unknown)
4922         if test -z "$MANPATH" ; then
4923                 MANPATH="/usr/man:/usr/share/man"
4924         fi
4925
4926         # look for the 'date' man-page (it's most likely to be installed!)
4927         MANPAGE_FORMAT=
4928         cf_preform=no
4929         cf_catonly=yes
4930         cf_example=date
4931
4932         IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
4933         for cf_dir in $MANPATH; do
4934                 test -z "$cf_dir" && cf_dir=/usr/man
4935                 for cf_name in $cf_dir/man*/$cf_example.[[01]]* $cf_dir/cat*/$cf_example.[[01]]* $cf_dir/man*/$cf_example $cf_dir/cat*/$cf_example
4936                 do
4937                         cf_test=`echo $cf_name | sed -e 's/*//'`
4938                         if test "x$cf_test" = "x$cf_name" ; then
4939
4940                                 case "$cf_name" in
4941                                 (*.gz) MANPAGE_FORMAT="$MANPAGE_FORMAT gzip";;
4942                                 (*.Z)  MANPAGE_FORMAT="$MANPAGE_FORMAT compress";;
4943                                 (*.0)  MANPAGE_FORMAT="$MANPAGE_FORMAT BSDI";;
4944                                 (*)    MANPAGE_FORMAT="$MANPAGE_FORMAT normal";;
4945                                 esac
4946
4947                                 case "$cf_name" in
4948                                 ($cf_dir/man*)
4949                                         cf_catonly=no
4950                                         ;;
4951                                 ($cf_dir/cat*)
4952                                         cf_preform=yes
4953                                         ;;
4954                                 esac
4955                                 break
4956                         fi
4957
4958                         # if we found a match in either man* or cat*, stop looking
4959                         if test -n "$MANPAGE_FORMAT" ; then
4960                                 cf_found=no
4961                                 test "$cf_preform" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT formatted"
4962                                 test "$cf_catonly" = yes && MANPAGE_FORMAT="$MANPAGE_FORMAT catonly"
4963                                 case "$cf_name" in
4964                                 ($cf_dir/cat*)
4965                                         cf_found=yes
4966                                         ;;
4967                                 esac
4968                                 test $cf_found=yes && break
4969                         fi
4970                 done
4971                 # only check the first directory in $MANPATH where we find manpages
4972                 if test -n "$MANPAGE_FORMAT" ; then
4973                         break
4974                 fi
4975         done
4976         # if we did not find the example, just assume it is normal
4977         test -z "$MANPAGE_FORMAT" && MANPAGE_FORMAT=normal
4978         IFS="$ac_save_ifs"
4979         ;;
4980 (*)
4981         for cf_option in $MANPAGE_FORMAT; do
4982         case $cf_option in
4983         (gzip|compress|BSDI|normal|formatted|catonly)
4984                 ;;
4985         (*)
4986                 cf_unknown="$cf_unknown $cf_option"
4987                 ;;
4988         esac
4989         done
4990         ;;
4991 esac
4992
4993 AC_MSG_RESULT($MANPAGE_FORMAT)
4994 if test -n "$cf_unknown" ; then
4995         AC_MSG_WARN(Unexpected manpage-format $cf_unknown)
4996 fi
4997 ])dnl
4998 dnl ---------------------------------------------------------------------------
4999 dnl CF_MANPAGE_RENAMES version: 10 updated: 2015/08/05 20:44:28
5000 dnl ------------------
5001 dnl The Debian people have their own naming convention for manpages.  This
5002 dnl option lets us override the name of the file containing renaming, or
5003 dnl disable it altogether.
5004 AC_DEFUN([CF_MANPAGE_RENAMES],
5005 [
5006 AC_MSG_CHECKING(for manpage renaming)
5007
5008 AC_ARG_WITH(manpage-renames,
5009         [  --with-manpage-renames  specify manpage-renaming],
5010         [MANPAGE_RENAMES=$withval],
5011         [MANPAGE_RENAMES=yes])
5012
5013 case ".$MANPAGE_RENAMES" in
5014 (.no)
5015         ;;
5016 (.|.yes)
5017         # Debian 'man' program?
5018         if test -f /etc/debian_version ; then
5019                 MANPAGE_RENAMES=`cd $srcdir && pwd`/man/man_db.renames
5020         else
5021                 MANPAGE_RENAMES=no
5022         fi
5023         ;;
5024 esac
5025
5026 if test "$MANPAGE_RENAMES" != no ; then
5027         if test -f $srcdir/man/$MANPAGE_RENAMES ; then
5028                 MANPAGE_RENAMES=`cd $srcdir/man && pwd`/$MANPAGE_RENAMES
5029         elif test ! -f $MANPAGE_RENAMES ; then
5030                 AC_MSG_ERROR(not a filename: $MANPAGE_RENAMES)
5031         fi
5032
5033         test ! -d man && mkdir man
5034
5035         # Construct a sed-script to perform renaming within man-pages
5036         if test -n "$MANPAGE_RENAMES" ; then
5037                 test ! -d man && mkdir man
5038                 $SHELL $srcdir/man/make_sed.sh $MANPAGE_RENAMES >./edit_man.sed
5039         fi
5040 fi
5041
5042 AC_MSG_RESULT($MANPAGE_RENAMES)
5043 AC_SUBST(MANPAGE_RENAMES)
5044 ])dnl
5045 dnl ---------------------------------------------------------------------------
5046 dnl CF_MANPAGE_SYMLINKS version: 6 updated: 2015/04/17 21:13:04
5047 dnl -------------------
5048 dnl Some people expect each tool to make all aliases for manpages in the
5049 dnl man-directory.  This accommodates the older, less-capable implementations
5050 dnl of 'man', and is optional.
5051 AC_DEFUN([CF_MANPAGE_SYMLINKS],
5052 [
5053 AC_MSG_CHECKING(if manpage aliases will be installed)
5054
5055 AC_ARG_WITH(manpage-aliases,
5056         [  --with-manpage-aliases  specify manpage-aliases using .so],
5057         [MANPAGE_ALIASES=$withval],
5058         [MANPAGE_ALIASES=yes])
5059
5060 AC_MSG_RESULT($MANPAGE_ALIASES)
5061
5062 case "x$LN_S" in
5063 (xln*)
5064         cf_use_symlinks=yes
5065         ;;
5066 (*)
5067         cf_use_symlinks=no
5068         ;;
5069 esac
5070
5071 MANPAGE_SYMLINKS=no
5072 if test "$MANPAGE_ALIASES" = yes ; then
5073 AC_MSG_CHECKING(if manpage symlinks should be used)
5074
5075 AC_ARG_WITH(manpage-symlinks,
5076         [  --with-manpage-symlinks specify manpage-aliases using symlinks],
5077         [MANPAGE_SYMLINKS=$withval],
5078         [MANPAGE_SYMLINKS=$cf_use_symlinks])
5079
5080 if test "$$cf_use_symlinks" = no; then
5081 if test "$MANPAGE_SYMLINKS" = yes ; then
5082         AC_MSG_WARN(cannot make symlinks, will use .so files)
5083         MANPAGE_SYMLINKS=no
5084 fi
5085 fi
5086
5087 AC_MSG_RESULT($MANPAGE_SYMLINKS)
5088 fi
5089
5090 ])dnl
5091 dnl ---------------------------------------------------------------------------
5092 dnl CF_MANPAGE_TBL version: 3 updated: 2002/01/19 22:51:32
5093 dnl --------------
5094 dnl This option causes manpages to be run through tbl(1) to generate tables
5095 dnl correctly.
5096 AC_DEFUN([CF_MANPAGE_TBL],
5097 [
5098 AC_MSG_CHECKING(for manpage tbl)
5099
5100 AC_ARG_WITH(manpage-tbl,
5101         [  --with-manpage-tbl      specify manpage processing with tbl],
5102         [MANPAGE_TBL=$withval],
5103         [MANPAGE_TBL=no])
5104
5105 AC_MSG_RESULT($MANPAGE_TBL)
5106 ])dnl
5107 dnl ---------------------------------------------------------------------------
5108 dnl CF_MAN_PAGES version: 47 updated: 2017/08/12 07:58:51
5109 dnl ------------
5110 dnl Try to determine if the man-pages on the system are compressed, and if
5111 dnl so, what format is used.  Use this information to construct a script that
5112 dnl will install man-pages.
5113 AC_DEFUN([CF_MAN_PAGES],
5114 [
5115 CF_HELP_MESSAGE(Options to Specify How Manpages are Installed:)
5116 CF_MANPAGE_FORMAT
5117 CF_MANPAGE_RENAMES
5118 CF_MANPAGE_SYMLINKS
5119 CF_MANPAGE_TBL
5120
5121 if test "$prefix" = "NONE" ; then
5122         cf_prefix="$ac_default_prefix"
5123 else
5124         cf_prefix="$prefix"
5125 fi
5126
5127 case "$MANPAGE_FORMAT" in
5128 (*catonly*)
5129         cf_format=yes
5130         cf_inboth=no
5131         ;;
5132 (*formatted*)
5133         cf_format=yes
5134         cf_inboth=yes
5135         ;;
5136 (*)
5137         cf_format=no
5138         cf_inboth=no
5139         ;;
5140 esac
5141
5142 test ! -d man && mkdir man
5143
5144 cf_so_strip=
5145 cf_compress=
5146 case "$MANPAGE_FORMAT" in
5147 (*compress*)
5148         cf_so_strip="Z"
5149         cf_compress=compress
5150         ;;
5151 (*gzip*)
5152         cf_so_strip="gz"
5153         cf_compress=gzip
5154         ;;
5155 esac
5156
5157 cf_edit_man=./edit_man.sh
5158 cf_man_alias=`pwd`/man_alias.sed
5159
5160 cat >$cf_edit_man <<CF_EOF
5161 #! $SHELL
5162 # this script is generated by the configure-script CF_MAN_PAGES macro.
5163
5164 prefix="$cf_prefix"
5165 datarootdir="$datarootdir"
5166 datadir="$datadir"
5167
5168 NCURSES_MAJOR="$NCURSES_MAJOR"
5169 NCURSES_MINOR="$NCURSES_MINOR"
5170 NCURSES_PATCH="$NCURSES_PATCH"
5171
5172 NCURSES_OSPEED="$NCURSES_OSPEED"
5173 TERMINFO="$TERMINFO"
5174
5175 INSTALL="$INSTALL"
5176 INSTALL_DATA="$INSTALL_DATA"
5177
5178 transform="$program_transform_name"
5179
5180 TMP=\${TMPDIR:=/tmp}/man\$\$
5181 trap "rm -f \$TMP" 0 1 2 3 15
5182
5183 form=\[$]1
5184 shift || exit 1
5185
5186 verb=\[$]1
5187 shift || exit 1
5188
5189 mandir=\[$]1
5190 shift || exit 1
5191
5192 srcdir=\[$]1
5193 top_srcdir=\[$]srcdir/..
5194 shift || exit 1
5195
5196 if test "\$form" = normal ; then
5197         if test "$cf_format" = yes ; then
5198         if test "$cf_inboth" = no ; then
5199                 $SHELL \[$]0 format \$verb \$mandir \$srcdir \[$]*
5200                 exit $?
5201         fi
5202         fi
5203         cf_subdir=\$mandir/man
5204         cf_tables=$MANPAGE_TBL
5205 else
5206         cf_subdir=\$mandir/cat
5207         cf_tables=yes
5208 fi
5209
5210 # process the list of source-files
5211 for i in \[$]* ; do
5212 case \$i in
5213 (*.orig|*.rej) ;;
5214 (*.[[0-9]]*)
5215         section=\`expr "\$i" : '.*\\.\\([[0-9]]\\)[[xm]]*'\`;
5216         if test \$verb = installing ; then
5217         if test ! -d \$cf_subdir\${section} ; then
5218                 mkdir -p \$cf_subdir\$section
5219         fi
5220         fi
5221
5222         # replace variables in man page
5223         if test ! -f $cf_man_alias ; then
5224 cat >>$cf_man_alias <<-CF_EOF2
5225                 s,@DATADIR@,\$datadir,g
5226                 s,@TERMINFO@,\${TERMINFO:="no default value"},g
5227                 s,@TERMINFO_DIRS@,\${TERMINFO_DIRS:="no default value"},g
5228                 s,@NCURSES_MAJOR@,\${NCURSES_MAJOR:="no default value"},g
5229                 s,@NCURSES_MINOR@,\${NCURSES_MINOR:="no default value"},g
5230                 s,@NCURSES_PATCH@,\${NCURSES_PATCH:="no default value"},g
5231                 s,@NCURSES_OSPEED@,\${NCURSES_OSPEED:="no default value"},g
5232 CF_EOF
5233         ifelse($1,,,[
5234         for cf_name in $1
5235         do
5236                 cf_NAME=`echo "$cf_name" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
5237                 cf_name=`echo $cf_name|sed "$program_transform_name"`
5238 cat >>$cf_edit_man <<-CF_EOF
5239                 s,@$cf_NAME@,$cf_name,g
5240 CF_EOF
5241         done
5242         ])
5243 cat >>$cf_edit_man <<CF_EOF
5244 CF_EOF2
5245                 echo "...made $cf_man_alias"
5246         fi
5247
5248         aliases=
5249         cf_source=\`basename \$i\`
5250         inalias=\$cf_source
5251         test ! -f \$inalias && inalias="\$srcdir/\$inalias"
5252         if test ! -f \$inalias ; then
5253                 echo .. skipped \$cf_source
5254                 continue
5255         fi
5256 CF_EOF
5257
5258 if test "$MANPAGE_ALIASES" != no ; then
5259 cat >>$cf_edit_man <<CF_EOF
5260         nCurses=ignore.3x
5261         test $with_curses_h = yes && nCurses=ncurses.3x
5262         aliases=\`sed -f \$top_srcdir/man/manlinks.sed \$inalias |sed -f $cf_man_alias | sort -u; test \$inalias = \$nCurses && echo curses\`
5263 CF_EOF
5264 fi
5265
5266 if test "$MANPAGE_RENAMES" = no ; then
5267 cat >>$cf_edit_man <<CF_EOF
5268         # perform program transformations for section 1 man pages
5269         if test \$section = 1 ; then
5270                 cf_target=\$cf_subdir\${section}/\`echo \$cf_source|sed "\${transform}"\`
5271         else
5272                 cf_target=\$cf_subdir\${section}/\$cf_source
5273         fi
5274 CF_EOF
5275 else
5276 cat >>$cf_edit_man <<CF_EOF
5277         cf_target=\`grep "^\$cf_source" $MANPAGE_RENAMES | $AWK '{print \[$]2}'\`
5278         if test -z "\$cf_target" ; then
5279                 echo '? missing rename for '\$cf_source
5280                 cf_target="\$cf_source"
5281         fi
5282         cf_target="\$cf_subdir\${section}/\${cf_target}"
5283
5284 CF_EOF
5285 fi
5286
5287 cat >>$cf_edit_man <<CF_EOF
5288         sed     -f $cf_man_alias \\
5289 CF_EOF
5290
5291 if test -f $MANPAGE_RENAMES ; then
5292 cat >>$cf_edit_man <<CF_EOF
5293                 < \$i | sed -f `pwd`/edit_man.sed >\$TMP
5294 CF_EOF
5295 else
5296 cat >>$cf_edit_man <<CF_EOF
5297                 < \$i >\$TMP
5298 CF_EOF
5299 fi
5300
5301 cat >>$cf_edit_man <<CF_EOF
5302 if test \$cf_tables = yes ; then
5303         tbl \$TMP >\$TMP.out
5304         mv \$TMP.out \$TMP
5305 fi
5306 CF_EOF
5307
5308 if test $with_overwrite != yes ; then
5309 cat >>$cf_edit_man <<CF_EOF
5310         sed -e "/\#[    ]*include/s,<curses.h,<ncurses$LIB_SUFFIX/curses.h," < \$TMP >\$TMP.out
5311         mv \$TMP.out \$TMP
5312 CF_EOF
5313 fi
5314
5315 if test $with_curses_h != yes ; then
5316 cat >>$cf_edit_man <<CF_EOF
5317         sed -e "/\#[    ]*include/s,curses.h,ncurses.h," < \$TMP >\$TMP.out
5318         mv \$TMP.out \$TMP
5319 CF_EOF
5320 fi
5321
5322 cat >>$cf_edit_man <<CF_EOF
5323         if test \$form = format ; then
5324                 nroff -man \$TMP >\$TMP.out
5325                 mv \$TMP.out \$TMP
5326         fi
5327 CF_EOF
5328
5329 if test -n "$cf_compress" ; then
5330 cat >>$cf_edit_man <<CF_EOF
5331         if test \$verb = installing ; then
5332         if ( $cf_compress -f \$TMP )
5333         then
5334                 mv \$TMP.$cf_so_strip \$TMP
5335         fi
5336         fi
5337         cf_target="\$cf_target.$cf_so_strip"
5338 CF_EOF
5339 fi
5340
5341 case "$MANPAGE_FORMAT" in
5342 (*BSDI*)
5343 cat >>$cf_edit_man <<CF_EOF
5344         if test \$form = format ; then
5345                 # BSDI installs only .0 suffixes in the cat directories
5346                 cf_target="\`echo \$cf_target|sed -e 's/\.[[1-9]]\+[[a-z]]*/.0/'\`"
5347         fi
5348 CF_EOF
5349   ;;
5350 esac
5351
5352 cat >>$cf_edit_man <<CF_EOF
5353         suffix=\`basename \$cf_target | sed -e 's%^[[^.]]*%%'\`
5354         if test \$verb = installing ; then
5355                 echo \$verb \$cf_target
5356                 \$INSTALL_DATA \$TMP \$cf_target
5357                 test -d \$cf_subdir\${section} &&
5358                 test -n "\$aliases" && (
5359                         cd \$cf_subdir\${section} && (
5360                                 cf_source=\`echo \$cf_target |sed -e 's%^.*/\([[^/]][[^/]]*/[[^/]][[^/]]*$\)%\1%'\`
5361                                 test -n "$cf_so_strip" && cf_source=\`echo \$cf_source |sed -e 's%\.$cf_so_strip\$%%'\`
5362                                 cf_target=\`basename \$cf_target\`
5363                                 for cf_alias in \$aliases
5364                                 do
5365                                         if test \$section = 1 ; then
5366                                                 cf_alias=\`echo \$cf_alias|sed "\${transform}"\`
5367                                         fi
5368
5369                                         if test "$MANPAGE_SYMLINKS" = yes ; then
5370                                                 if test -f \$cf_alias\${suffix} ; then
5371                                                         if ( cmp -s \$cf_target \$cf_alias\${suffix} )
5372                                                         then
5373                                                                 continue
5374                                                         fi
5375                                                 fi
5376                                                 echo .. \$verb alias \$cf_alias\${suffix}
5377 CF_EOF
5378 case "x$LN_S" in
5379 (*-f)
5380 cat >>$cf_edit_man <<CF_EOF
5381                                                 $LN_S \$cf_target \$cf_alias\${suffix}
5382 CF_EOF
5383         ;;
5384 (*)
5385 cat >>$cf_edit_man <<CF_EOF
5386                                                 rm -f \$cf_alias\${suffix}
5387                                                 $LN_S \$cf_target \$cf_alias\${suffix}
5388 CF_EOF
5389         ;;
5390 esac
5391 cat >>$cf_edit_man <<CF_EOF
5392                                         elif test "\$cf_target" != "\$cf_alias\${suffix}" ; then
5393                                                 echo ".so \$cf_source" >\$TMP
5394 CF_EOF
5395 if test -n "$cf_compress" ; then
5396 cat >>$cf_edit_man <<CF_EOF
5397                                                 if test -n "$cf_so_strip" ; then
5398                                                         $cf_compress -f \$TMP
5399                                                         mv \$TMP.$cf_so_strip \$TMP
5400                                                 fi
5401 CF_EOF
5402 fi
5403 cat >>$cf_edit_man <<CF_EOF
5404                                                 echo .. \$verb alias \$cf_alias\${suffix}
5405                                                 rm -f \$cf_alias\${suffix}
5406                                                 \$INSTALL_DATA \$TMP \$cf_alias\${suffix}
5407                                         fi
5408                                 done
5409                         )
5410                 )
5411         elif test \$verb = removing ; then
5412                 test -f \$cf_target && (
5413                         echo \$verb \$cf_target
5414                         rm -f \$cf_target
5415                 )
5416                 test -d \$cf_subdir\${section} &&
5417                 test -n "\$aliases" && (
5418                         cd \$cf_subdir\${section} && (
5419                                 for cf_alias in \$aliases
5420                                 do
5421                                         if test \$section = 1 ; then
5422                                                 cf_alias=\`echo \$cf_alias|sed "\${transform}"\`
5423                                         fi
5424
5425                                         echo .. \$verb alias \$cf_alias\${suffix}
5426                                         rm -f \$cf_alias\${suffix}
5427                                 done
5428                         )
5429                 )
5430         else
5431 #               echo ".hy 0"
5432                 cat \$TMP
5433         fi
5434         ;;
5435 esac
5436 done
5437
5438 if test $cf_inboth = yes ; then
5439 if test \$form != format ; then
5440         $SHELL \[$]0 format \$verb \$mandir \$srcdir \[$]*
5441 fi
5442 fi
5443
5444 exit 0
5445 CF_EOF
5446 chmod 755 $cf_edit_man
5447
5448 ])dnl
5449 dnl ---------------------------------------------------------------------------
5450 dnl CF_MATH_LIB version: 9 updated: 2017/01/21 11:06:25
5451 dnl -----------
5452 dnl Checks for libraries.  At least one UNIX system, Apple Macintosh
5453 dnl Rhapsody 5.5, does not have -lm.  We cannot use the simpler
5454 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
5455 AC_DEFUN([CF_MATH_LIB],
5456 [
5457 AC_CACHE_CHECK(if -lm needed for math functions,
5458         cf_cv_need_libm,[
5459         AC_TRY_LINK([
5460         #include <stdio.h>
5461         #include <stdlib.h>
5462         #include <math.h>
5463         ],
5464         [double x = rand(); printf("result = %g\n", ]ifelse([$2],,sin(x),$2)[)],
5465         [cf_cv_need_libm=no],
5466         [cf_cv_need_libm=yes])])
5467 if test "$cf_cv_need_libm" = yes
5468 then
5469 ifelse($1,,[
5470         CF_ADD_LIB(m)
5471 ],[$1=-lm])
5472 fi
5473 ])
5474 dnl ---------------------------------------------------------------------------
5475 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
5476 dnl ----------------------
5477 dnl Check if the file-system supports mixed-case filenames.  If we're able to
5478 dnl create a lowercase name and see it as uppercase, it doesn't support that.
5479 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
5480 [
5481 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
5482 if test "$cross_compiling" = yes ; then
5483         case $target_alias in
5484         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
5485                 cf_cv_mixedcase=no
5486                 ;;
5487         (*)
5488                 cf_cv_mixedcase=yes
5489                 ;;
5490         esac
5491 else
5492         rm -f conftest CONFTEST
5493         echo test >conftest
5494         if test -f CONFTEST ; then
5495                 cf_cv_mixedcase=no
5496         else
5497                 cf_cv_mixedcase=yes
5498         fi
5499         rm -f conftest CONFTEST
5500 fi
5501 ])
5502 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
5503 ])dnl
5504 dnl ---------------------------------------------------------------------------
5505 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
5506 dnl ----------
5507 dnl Check for a working mkstemp.  This creates two files, checks that they are
5508 dnl successfully created and distinct (AmigaOS apparently fails on the last).
5509 AC_DEFUN([CF_MKSTEMP],[
5510 AC_CHECK_HEADERS( \
5511 unistd.h \
5512 )
5513 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
5514 rm -rf conftest*
5515 AC_TRY_RUN([
5516 #include <sys/types.h>
5517 #ifdef HAVE_UNISTD_H
5518 #include <unistd.h>
5519 #endif
5520 #include <stdlib.h>
5521 #include <stdio.h>
5522 #include <string.h>
5523 #include <sys/stat.h>
5524 int main(void)
5525 {
5526         char *tmpl = "conftestXXXXXX";
5527         char name[2][80];
5528         int n;
5529         int result = 0;
5530         int fd;
5531         struct stat sb;
5532
5533         umask(077);
5534         for (n = 0; n < 2; ++n) {
5535                 strcpy(name[n], tmpl);
5536                 if ((fd = mkstemp(name[n])) >= 0) {
5537                         if (!strcmp(name[n], tmpl)
5538                          || stat(name[n], &sb) != 0
5539                          || (sb.st_mode & S_IFMT) != S_IFREG
5540                          || (sb.st_mode & 077) != 0) {
5541                                 result = 1;
5542                         }
5543                         close(fd);
5544                 }
5545         }
5546         if (result == 0
5547          && !strcmp(name[0], name[1]))
5548                 result = 1;
5549         ${cf_cv_main_return:-return}(result);
5550 }
5551 ],[cf_cv_func_mkstemp=yes
5552 ],[cf_cv_func_mkstemp=no
5553 ],[cf_cv_func_mkstemp=maybe])
5554 ])
5555 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
5556         AC_CHECK_FUNC(mkstemp)
5557 fi
5558 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
5559         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
5560 fi
5561 ])dnl
5562 dnl ---------------------------------------------------------------------------
5563 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
5564 dnl ----------
5565 dnl Write a debug message to config.log, along with the line number in the
5566 dnl configure script.
5567 AC_DEFUN([CF_MSG_LOG],[
5568 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
5569 ])dnl
5570 dnl ---------------------------------------------------------------------------
5571 dnl CF_NCURSES_ABI_6 version: 3 updated: 2015/06/06 16:10:11
5572 dnl ----------------
5573 dnl Set ncurses' ABI to 6 unless overridden by explicit configure option, and
5574 dnl warn about this.
5575 AC_DEFUN([CF_NCURSES_ABI_6],[
5576 if test "${with_abi_version+set}" != set; then
5577         case $cf_cv_rel_version in
5578         (5.*)
5579                 cf_cv_rel_version=6.0
5580                 cf_cv_abi_version=6
5581                 AC_MSG_WARN(overriding ABI version to $cf_cv_abi_version)
5582                 ;;
5583         esac
5584 fi
5585 ])dnl
5586 dnl ---------------------------------------------------------------------------
5587 dnl CF_NCURSES_WITH_ABI_VERSION version: 2 updated: 2015/12/19 17:51:52
5588 dnl ---------------------------
5589 dnl Allow ncurses's ABI to be overridden.  Generally this happens when a
5590 dnl packager has incremented the ABI past that used in the original package,
5591 dnl and wishes to keep doing this.
5592 dnl
5593 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
5594 dnl symbol.
5595 AC_DEFUN([CF_NCURSES_WITH_ABI_VERSION],[
5596 CF_WITH_ABI_VERSION($1)
5597 if test "x$cf_cv_abi_version" != "x$with_abi_version"
5598 then
5599         case $cf_cv_rel_version in
5600         (5.*)
5601                 cf_cv_rel_version=$with_abi_version.0
5602                 ;;
5603         esac
5604 fi
5605 ])dnl
5606 dnl ---------------------------------------------------------------------------
5607 dnl CF_NO_LEAKS_OPTION version: 6 updated: 2015/04/12 15:39:00
5608 dnl ------------------
5609 dnl see CF_WITH_NO_LEAKS
5610 AC_DEFUN([CF_NO_LEAKS_OPTION],[
5611 AC_MSG_CHECKING(if you want to use $1 for testing)
5612 AC_ARG_WITH($1,
5613         [$2],
5614         [AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
5615          $4
5616 ])
5617         : ${with_cflags:=-g}
5618         : ${with_no_leaks:=yes}
5619          with_$1=yes],
5620         [with_$1=])
5621 AC_MSG_RESULT(${with_$1:-no})
5622
5623 case .$with_cflags in
5624 (.*-g*)
5625         case .$CFLAGS in
5626         (.*-g*)
5627                 ;;
5628         (*)
5629                 CF_ADD_CFLAGS([-g])
5630                 ;;
5631         esac
5632         ;;
5633 esac
5634 ])dnl
5635 dnl ---------------------------------------------------------------------------
5636 dnl CF_NUMBER_SYNTAX version: 2 updated: 2015/04/17 21:13:04
5637 dnl ----------------
5638 dnl Check if the given variable is a number.  If not, report an error.
5639 dnl $1 is the variable
5640 dnl $2 is the message
5641 AC_DEFUN([CF_NUMBER_SYNTAX],[
5642 if test -n "$1" ; then
5643   case $1 in
5644   ([[0-9]]*)
5645         ;;
5646   (*)
5647         AC_MSG_ERROR($2 is not a number: $1)
5648         ;;
5649   esac
5650 else
5651   AC_MSG_ERROR($2 value is empty)
5652 fi
5653 ])dnl
5654 dnl ---------------------------------------------------------------------------
5655 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
5656 dnl -------------
5657 dnl Compute the object-directory name from the given model name
5658 AC_DEFUN([CF_OBJ_SUBDIR],
5659 [
5660         case $1 in
5661         (libtool) $2='obj_lo'  ;;
5662         (normal)  $2='objects' ;;
5663         (debug)   $2='obj_g' ;;
5664         (profile) $2='obj_p' ;;
5665         (shared)
5666                 case $cf_cv_system_name in
5667                 (cygwin|msys)
5668                         $2='objects' ;;
5669                 (*)
5670                         $2='obj_s' ;;
5671                 esac
5672         esac
5673 ])dnl
5674 dnl ---------------------------------------------------------------------------
5675 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
5676 dnl ----------
5677 dnl Provide a value for the $PATH and similar separator (or amend the value
5678 dnl as provided in autoconf 2.5x).
5679 AC_DEFUN([CF_PATHSEP],
5680 [
5681         AC_MSG_CHECKING(for PATH separator)
5682         case $cf_cv_system_name in
5683         (os2*)  PATH_SEPARATOR=';'  ;;
5684         (*)     ${PATH_SEPARATOR:=':'}  ;;
5685         esac
5686 ifelse([$1],,,[$1=$PATH_SEPARATOR])
5687         AC_SUBST(PATH_SEPARATOR)
5688         AC_MSG_RESULT($PATH_SEPARATOR)
5689 ])dnl
5690 dnl ---------------------------------------------------------------------------
5691 dnl CF_PATH_PROG version: 10 updated: 2019/06/30 19:44:43
5692 dnl ------------
5693 dnl Check for a given program, defining corresponding symbol.
5694 dnl     $1 = environment variable, which is suffixed by "_PATH" in the #define.
5695 dnl     $2 = program name to find.
5696 dnl     $3 = optional list of additional program names to test.
5697 dnl $4 = $PATH
5698 dnl
5699 dnl If there is more than one token in the result, #define the remaining tokens
5700 dnl to $1_ARGS.  We need this for 'install' in particular.
5701 dnl
5702 dnl FIXME: we should allow this to be overridden by environment variables
5703 dnl
5704 AC_DEFUN([CF_PATH_PROG],[
5705 AC_REQUIRE([CF_PATHSEP])
5706 test -z "[$]$1" && $1=$2
5707 AC_PATH_PROGS($1,[$]$1 $2 ifelse($3,,,$3),[$]$1, ifelse($4,,,$4))
5708
5709 cf_path_prog=""
5710 cf_path_args=""
5711 IFS="${IFS:-    }"; cf_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR"
5712 for cf_temp in $ac_cv_path_$1
5713 do
5714         if test -z "$cf_path_prog" ; then
5715                 if test "$with_full_paths" = yes ; then
5716                         CF_PATH_SYNTAX(cf_temp,break)
5717                         cf_path_prog="$cf_temp"
5718                 else
5719                         cf_path_prog="`basename $cf_temp`"
5720                 fi
5721         elif test -z "$cf_path_args" ; then
5722                 cf_path_args="$cf_temp"
5723         else
5724                 cf_path_args="$cf_path_args $cf_temp"
5725         fi
5726 done
5727 IFS="$cf_save_ifs"
5728
5729 if test -n "$cf_path_prog" ; then
5730         CF_MSG_LOG(defining path for ${cf_path_prog})
5731         AC_DEFINE_UNQUOTED($1_PATH,"$cf_path_prog",Define to pathname $1)
5732         test -n "$cf_path_args" && AC_DEFINE_UNQUOTED($1_ARGS,"$cf_path_args",Define to provide args for $1)
5733 fi
5734 ])dnl
5735 dnl ---------------------------------------------------------------------------
5736 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
5737 dnl --------------
5738 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
5739 dnl begins with one of the prefix/exec_prefix variables, and then again if the
5740 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
5741 dnl delayed evaluation of those symbols.
5742 AC_DEFUN([CF_PATH_SYNTAX],[
5743 if test "x$prefix" != xNONE; then
5744         cf_path_syntax="$prefix"
5745 else
5746         cf_path_syntax="$ac_default_prefix"
5747 fi
5748
5749 case ".[$]$1" in
5750 (.\[$]\(*\)*|.\'*\'*)
5751         ;;
5752 (..|./*|.\\*)
5753         ;;
5754 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
5755         ;;
5756 (.\[$]{*prefix}*|.\[$]{*dir}*)
5757         eval $1="[$]$1"
5758         case ".[$]$1" in
5759         (.NONE/*)
5760                 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
5761                 ;;
5762         esac
5763         ;;
5764 (.no|.NONE/*)
5765         $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
5766         ;;
5767 (*)
5768         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
5769         ;;
5770 esac
5771 ])dnl
5772 dnl ---------------------------------------------------------------------------
5773 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
5774 dnl -------------
5775 dnl Check for the package-config program, unless disabled by command-line.
5776 AC_DEFUN([CF_PKG_CONFIG],
5777 [
5778 AC_MSG_CHECKING(if you want to use pkg-config)
5779 AC_ARG_WITH(pkg-config,
5780         [  --with-pkg-config{=path} enable/disable use of pkg-config],
5781         [cf_pkg_config=$withval],
5782         [cf_pkg_config=yes])
5783 AC_MSG_RESULT($cf_pkg_config)
5784
5785 case $cf_pkg_config in
5786 (no)
5787         PKG_CONFIG=none
5788         ;;
5789 (yes)
5790         CF_ACVERSION_CHECK(2.52,
5791                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
5792                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
5793         ;;
5794 (*)
5795         PKG_CONFIG=$withval
5796         ;;
5797 esac
5798
5799 test -z "$PKG_CONFIG" && PKG_CONFIG=none
5800 if test "$PKG_CONFIG" != none ; then
5801         CF_PATH_SYNTAX(PKG_CONFIG)
5802 elif test "x$cf_pkg_config" != xno ; then
5803         AC_MSG_WARN(pkg-config is not installed)
5804 fi
5805
5806 AC_SUBST(PKG_CONFIG)
5807 ])dnl
5808 dnl ---------------------------------------------------------------------------
5809 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
5810 dnl -----------------
5811 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
5812 dnl
5813 dnl     POSIX.1-1990                            _POSIX_SOURCE
5814 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
5815 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
5816 dnl             Bindings Option
5817 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
5818 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
5819 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
5820 dnl
5821 dnl Parameters:
5822 dnl     $1 is the nominal value for _POSIX_C_SOURCE
5823 AC_DEFUN([CF_POSIX_C_SOURCE],
5824 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
5825
5826 if test "$cf_cv_posix_visible" = no; then
5827
5828 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
5829
5830 cf_save_CFLAGS="$CFLAGS"
5831 cf_save_CPPFLAGS="$CPPFLAGS"
5832
5833 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
5834 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
5835
5836 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
5837         CF_MSG_LOG(if the symbol is already defined go no further)
5838         AC_TRY_COMPILE([#include <sys/types.h>],[
5839 #ifndef _POSIX_C_SOURCE
5840 make an error
5841 #endif],
5842         [cf_cv_posix_c_source=no],
5843         [cf_want_posix_source=no
5844          case .$cf_POSIX_C_SOURCE in
5845          (.[[12]]??*)
5846                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
5847                 ;;
5848          (.2)
5849                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
5850                 cf_want_posix_source=yes
5851                 ;;
5852          (.*)
5853                 cf_want_posix_source=yes
5854                 ;;
5855          esac
5856          if test "$cf_want_posix_source" = yes ; then
5857                 AC_TRY_COMPILE([#include <sys/types.h>],[
5858 #ifdef _POSIX_SOURCE
5859 make an error
5860 #endif],[],
5861                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
5862          fi
5863          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
5864          CFLAGS="$cf_trim_CFLAGS"
5865          CPPFLAGS="$cf_trim_CPPFLAGS"
5866          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
5867          CF_MSG_LOG(if the second compile does not leave our definition intact error)
5868          AC_TRY_COMPILE([#include <sys/types.h>],[
5869 #ifndef _POSIX_C_SOURCE
5870 make an error
5871 #endif],,
5872          [cf_cv_posix_c_source=no])
5873          CFLAGS="$cf_save_CFLAGS"
5874          CPPFLAGS="$cf_save_CPPFLAGS"
5875         ])
5876 ])
5877
5878 if test "$cf_cv_posix_c_source" != no ; then
5879         CFLAGS="$cf_trim_CFLAGS"
5880         CPPFLAGS="$cf_trim_CPPFLAGS"
5881         CF_ADD_CFLAGS($cf_cv_posix_c_source)
5882 fi
5883
5884 fi # cf_cv_posix_visible
5885
5886 ])dnl
5887 dnl ---------------------------------------------------------------------------
5888 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
5889 dnl ----------------
5890 dnl POSIX documents test-macros which an application may set before any system
5891 dnl headers are included to make features available.
5892 dnl
5893 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
5894 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
5895 dnl recent features visible in the system header files unless the application
5896 dnl overrides the corresponding test-macros.  Doing that introduces portability
5897 dnl problems.
5898 dnl
5899 dnl This macro makes a special check for the symbols used for this, to avoid a
5900 dnl conflicting definition.
5901 AC_DEFUN([CF_POSIX_VISIBLE],
5902 [
5903 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
5904 AC_TRY_COMPILE([#include <stdio.h>],[
5905 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
5906         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
5907         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
5908         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
5909 #error conflicting symbols found
5910 #endif
5911 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
5912 ])
5913 ])dnl
5914 dnl ---------------------------------------------------------------------------
5915 dnl CF_PREDEFINE version: 2 updated: 2010/05/26 16:44:57
5916 dnl ------------
5917 dnl Add definitions to CPPFLAGS to ensure they're predefined for all compiles.
5918 dnl
5919 dnl $1 = symbol to test
5920 dnl $2 = value (if any) to use for a predefinition
5921 AC_DEFUN([CF_PREDEFINE],
5922 [
5923 AC_MSG_CHECKING(if we must define $1)
5924 AC_TRY_COMPILE([#include <sys/types.h>
5925 ],[
5926 #ifndef $1
5927 make an error
5928 #endif],[cf_result=no],[cf_result=yes])
5929 AC_MSG_RESULT($cf_result)
5930
5931 if test "$cf_result" = yes ; then
5932         CPPFLAGS="$CPPFLAGS ifelse([$2],,-D$1,[-D$1=$2])"
5933 elif test "x$2" != "x" ; then
5934         AC_MSG_CHECKING(checking for compatible value versus $2)
5935         AC_TRY_COMPILE([#include <sys/types.h>
5936 ],[
5937 #if $1-$2 < 0
5938 make an error
5939 #endif],[cf_result=yes],[cf_result=no])
5940         AC_MSG_RESULT($cf_result)
5941         if test "$cf_result" = no ; then
5942                 # perhaps we can override it - try...
5943                 CPPFLAGS="$CPPFLAGS -D$1=$2"
5944         fi
5945 fi
5946 ])dnl
5947 dnl ---------------------------------------------------------------------------
5948 dnl CF_PRG_RULES version: 1 updated: 2006/06/03 11:45:08
5949 dnl ------------
5950 dnl Append definitions and rules for the given programs to the subdirectory
5951 dnl Makefiles, and the recursion rule for the top-level Makefile.
5952 dnl
5953 dnl parameters
5954 dnl     $1 = script to run
5955 dnl     $2 = list of subdirectories
5956 dnl
5957 dnl variables
5958 dnl     $AWK
5959 AC_DEFUN([CF_PRG_RULES],
5960 [
5961 for cf_dir in $2
5962 do
5963         if test ! -d $srcdir/$cf_dir; then
5964                 continue
5965         elif test -f $srcdir/$cf_dir/programs; then
5966                 $AWK -f $1 $srcdir/$cf_dir/programs >>$cf_dir/Makefile
5967         fi
5968 done
5969
5970 ])dnl
5971 dnl ---------------------------------------------------------------------------
5972 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
5973 dnl ----------
5974 dnl Check for archiver "ar".
5975 AC_DEFUN([CF_PROG_AR],[
5976 AC_CHECK_TOOL(AR, ar, ar)
5977 ])
5978 dnl ---------------------------------------------------------------------------
5979 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
5980 dnl -----------
5981 dnl Check for awk, ensure that the check found something.
5982 AC_DEFUN([CF_PROG_AWK],
5983 [
5984 AC_PROG_AWK
5985 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
5986 ])dnl
5987 dnl ---------------------------------------------------------------------------
5988 dnl CF_PROG_CC version: 4 updated: 2014/07/12 18:57:58
5989 dnl ----------
5990 dnl standard check for CC, plus followup sanity checks
5991 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
5992 AC_DEFUN([CF_PROG_CC],[
5993 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
5994 CF_GCC_VERSION
5995 CF_ACVERSION_CHECK(2.52,
5996         [AC_PROG_CC_STDC],
5997         [CF_ANSI_CC_REQD])
5998 CF_CC_ENV_FLAGS
5999 ])dnl
6000 dnl ---------------------------------------------------------------------------
6001 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
6002 dnl --------------
6003 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
6004 dnl the output file can be renamed, and allows for a shell variable that can
6005 dnl be used later.  The parameter is either CC or CXX.  The result is the
6006 dnl cache variable:
6007 dnl     $cf_cv_prog_CC_c_o
6008 dnl     $cf_cv_prog_CXX_c_o
6009 dnl
6010 dnl $1 = compiler
6011 dnl $2 = compiler options, if any
6012 AC_DEFUN([CF_PROG_CC_C_O],
6013 [AC_REQUIRE([AC_PROG_CC])dnl
6014 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
6015 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
6016 [
6017 cat > conftest.$ac_ext <<CF_EOF
6018 int main(void)
6019 {
6020         ${cf_cv_main_return:-return}(0);
6021 }
6022 CF_EOF
6023 # We do the test twice because some compilers refuse to overwrite an
6024 # existing .o file with -o, though they will create one.
6025 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
6026 if AC_TRY_EVAL(ac_try) &&
6027   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
6028 then
6029   eval cf_cv_prog_$1_c_o=yes
6030 else
6031   eval cf_cv_prog_$1_c_o=no
6032 fi
6033 rm -rf conftest*
6034 ])dnl
6035 if test $cf_cv_prog_$1_c_o = yes; then
6036   AC_MSG_RESULT([yes])
6037 else
6038   AC_MSG_RESULT([no])
6039 fi
6040 ])dnl
6041 dnl ---------------------------------------------------------------------------
6042 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
6043 dnl -------------
6044 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
6045 dnl This macro adds a check to ensure the script found something.
6046 AC_DEFUN([CF_PROG_EGREP],
6047 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
6048         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
6049                 then ac_cv_prog_egrep='grep -E'
6050                 else ac_cv_prog_egrep='egrep'
6051         fi])
6052         EGREP=$ac_cv_prog_egrep
6053         AC_SUBST([EGREP])
6054         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
6055 ])dnl
6056 dnl ---------------------------------------------------------------------------
6057 dnl CF_PROG_GNAT version: 9 updated: 2019/09/21 18:08:42
6058 dnl ------------
6059 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
6060 AC_DEFUN([CF_PROG_GNAT],[
6061 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
6062 do
6063         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
6064
6065         unset ac_cv_path_cf_TEMP_gnat
6066         unset cf_TEMP_gnat
6067         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
6068         eval cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat
6069
6070         if test "x$cf_TEMP_gnat" != xno; then
6071                 unset cf_gnat_version
6072                 unset cf_TEMP_gnat
6073                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
6074         fi
6075         eval cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat
6076
6077         unset cf_TEMP_gnat
6078         unset cf_gnat_version
6079         unset ac_cv_path_cf_TEMP_gnat
6080 done
6081
6082 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
6083         cf_ada_make=
6084         cf_cv_prog_gnat_correct=no
6085 else
6086         cf_ada_make=gnatmake
6087         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
6088                 # gprconfig is newer than gnatmake; we can continue...
6089                 cf_ada_config="##"
6090         else
6091                 rm -rf conftest* *~conftest*
6092                 if mkdir conftest.src
6093                 then
6094                         cf_ada_config=""
6095                         cd conftest.src
6096                         for cf_gprconfig in Ada C
6097                         do
6098                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
6099                                 if test $cf_gprconfig = C
6100                                 then
6101                                         for cf_gprconfig_param in \
6102                                                 $cf_gprconfig,,,,GNATGCC \
6103                                                 $cf_gprconfig,,,,GCC \
6104                                                 $cf_gprconfig
6105                                         do
6106                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6107                                                 test -n "$cf_gprconfig_value" && break
6108                                         done
6109                                 else
6110                                         cf_gprconfig_param=$cf_gprconfig
6111                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
6112                                 fi
6113                                 if test -n "$cf_gprconfig_value"
6114                                 then
6115                                         eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
6116                                         AC_MSG_RESULT($cf_gprconfig_value)
6117                                 else
6118                                         AC_MSG_RESULT(missing)
6119                                         cf_ada_config="#"
6120                                         break
6121                                 fi
6122                         done
6123                         cd ..
6124                         rm -rf conftest* *~conftest*
6125                 fi
6126         fi
6127         if test "x$cf_ada_config" != "x#"
6128         then
6129                 CF_GNAT_VERSION
6130                 CF_CHECK_GNAT_VERSION
6131                 AC_CHECK_PROG(M4_exists, m4, yes, no)
6132                 if test "$ac_cv_prog_M4_exists" = no; then
6133                         cf_cv_prog_gnat_correct=no
6134                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
6135                 fi
6136                 if test "$cf_cv_prog_gnat_correct" = yes; then
6137                         AC_MSG_CHECKING(if GNAT works)
6138                         CF_GNAT_TRY_RUN([procedure conftest;],
6139 [with Text_IO;
6140 with GNAT.OS_Lib;
6141 procedure conftest is
6142 begin
6143    Text_IO.Put ("Hello World");
6144    Text_IO.New_Line;
6145    GNAT.OS_Lib.OS_Exit (0);
6146 end conftest;],
6147 [cf_cv_prog_gnat_correct=yes],
6148 [cf_cv_prog_gnat_correct=no])
6149                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
6150                 fi
6151         else
6152                 cf_cv_prog_gnat_correct=no
6153         fi
6154 fi
6155
6156 AC_SUBST(cf_ada_make)
6157 AC_SUBST(cf_ada_config)
6158 AC_SUBST(cf_ada_config_Ada)
6159 AC_SUBST(cf_ada_config_C)
6160 ])dnl
6161 dnl ---------------------------------------------------------------------------
6162 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
6163 dnl ---------------
6164 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
6165 dnl misc/tabset install won't work properly.  Usually this happens only when
6166 dnl using the fallback mkinstalldirs script
6167 AC_DEFUN([CF_PROG_INSTALL],
6168 [AC_PROG_INSTALL
6169 case $INSTALL in
6170 (/*)
6171         ;;
6172 (*)
6173         CF_DIRNAME(cf_dir,$INSTALL)
6174         test -z "$cf_dir" && cf_dir=.
6175         INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
6176         ;;
6177 esac
6178 ])dnl
6179 dnl ---------------------------------------------------------------------------
6180 dnl CF_PROG_LDCONFIG version: 5 updated: 2015/04/18 08:56:57
6181 dnl ----------------
6182 dnl Check for ldconfig, needed to fixup shared libraries that would be built
6183 dnl and then used in the install.
6184 AC_DEFUN([CF_PROG_LDCONFIG],[
6185 if test "$cross_compiling" = yes ; then
6186         LDCONFIG=:
6187 else
6188         case "$cf_cv_system_name" in
6189         (dragonfly*|mirbsd*|freebsd*)
6190                 test -z "$LDCONFIG" && LDCONFIG="/sbin/ldconfig -R"
6191                 ;;
6192         (*) LDPATH=$PATH:/sbin:/usr/sbin
6193                 AC_PATH_PROG(LDCONFIG,ldconfig,,$LDPATH)
6194                 ;;
6195         esac
6196 fi
6197 AC_SUBST(LDCONFIG)
6198 ])dnl
6199 dnl ---------------------------------------------------------------------------
6200 dnl CF_PROG_LINT version: 3 updated: 2016/05/22 15:25:54
6201 dnl ------------
6202 AC_DEFUN([CF_PROG_LINT],
6203 [
6204 AC_CHECK_PROGS(LINT, lint cppcheck splint)
6205 AC_SUBST(LINT_OPTS)
6206 ])dnl
6207 dnl ---------------------------------------------------------------------------
6208 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
6209 dnl ------------
6210 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
6211 dnl option if it is supported.
6212 AC_DEFUN([CF_PROG_LN_S],[
6213 AC_PROG_LN_S
6214 AC_MSG_CHECKING(if $LN_S -f options work)
6215
6216 rm -f conf$$.src conf$$dst
6217 echo >conf$$.dst
6218 echo first >conf$$.src
6219 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
6220         cf_prog_ln_sf=yes
6221 else
6222         cf_prog_ln_sf=no
6223 fi
6224 rm -f conf$$.dst conf$$src
6225 AC_MSG_RESULT($cf_prog_ln_sf)
6226
6227 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
6228 ])dnl
6229 dnl ---------------------------------------------------------------------------
6230 dnl CF_REGEX version: 12 updated: 2015/04/18 08:56:57
6231 dnl --------
6232 dnl Attempt to determine if we've got one of the flavors of regular-expression
6233 dnl code that we can support.
6234 AC_DEFUN([CF_REGEX],
6235 [
6236
6237 cf_regex_func=no
6238
6239 cf_regex_libs="regex re"
6240 case $host_os in
6241 (mingw*)
6242         cf_regex_libs="gnurx $cf_regex_libs"
6243         ;;
6244 esac
6245
6246 AC_CHECK_FUNC(regcomp,[cf_regex_func=regcomp],[
6247         for cf_regex_lib in $cf_regex_libs
6248         do
6249                 AC_CHECK_LIB($cf_regex_lib,regcomp,[
6250                                 CF_ADD_LIB($cf_regex_lib)
6251                                 cf_regex_func=regcomp
6252                                 break])
6253         done
6254 ])
6255
6256 if test "$cf_regex_func" = no ; then
6257         AC_CHECK_FUNC(compile,[cf_regex_func=compile],[
6258                 AC_CHECK_LIB(gen,compile,[
6259                                 CF_ADD_LIB(gen)
6260                                 cf_regex_func=compile])])
6261 fi
6262
6263 if test "$cf_regex_func" = no ; then
6264         AC_MSG_WARN(cannot find regular expression library)
6265 fi
6266
6267 AC_CACHE_CHECK(for regular-expression headers,cf_cv_regex_hdrs,[
6268
6269 cf_cv_regex_hdrs=no
6270 case $cf_regex_func in
6271 (compile)
6272         for cf_regex_hdr in regexp.h regexpr.h
6273         do
6274                 AC_TRY_LINK([#include <$cf_regex_hdr>],[
6275                         char *p = compile("", "", "", 0);
6276                         int x = step("", "");
6277                 ],[
6278                         cf_cv_regex_hdrs=$cf_regex_hdr
6279                         break
6280                 ])
6281         done
6282         ;;
6283 (*)
6284         for cf_regex_hdr in regex.h
6285         do
6286                 AC_TRY_LINK([#include <sys/types.h>
6287 #include <$cf_regex_hdr>],[
6288                         regex_t *p;
6289                         int x = regcomp(p, "", 0);
6290                         int y = regexec(p, "", 0, 0, 0);
6291                         regfree(p);
6292                 ],[
6293                         cf_cv_regex_hdrs=$cf_regex_hdr
6294                         break
6295                 ])
6296         done
6297         ;;
6298 esac
6299
6300 ])
6301
6302 case $cf_cv_regex_hdrs in
6303         (no)            AC_MSG_WARN(no regular expression header found) ;;
6304         (regex.h)       AC_DEFINE(HAVE_REGEX_H_FUNCS,1,[Define to 1 to include regex.h for regular expressions]) ;;
6305         (regexp.h)      AC_DEFINE(HAVE_REGEXP_H_FUNCS,1,[Define to 1 to include regexp.h for regular expressions]) ;;
6306         (regexpr.h) AC_DEFINE(HAVE_REGEXPR_H_FUNCS,1,[Define to 1 to include regexpr.h for regular expressions]) ;;
6307 esac
6308 ])dnl
6309 dnl ---------------------------------------------------------------------------
6310 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
6311 dnl ----------------
6312 dnl Remove all -U and -D options that refer to the given symbol from a list
6313 dnl of C compiler options.  This works around the problem that not all
6314 dnl compilers process -U and -D options from left-to-right, so a -U option
6315 dnl cannot be used to cancel the effect of a preceding -D option.
6316 dnl
6317 dnl $1 = target (which could be the same as the source variable)
6318 dnl $2 = source (including '$')
6319 dnl $3 = symbol to remove
6320 define([CF_REMOVE_DEFINE],
6321 [
6322 $1=`echo "$2" | \
6323         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
6324                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
6325 ])dnl
6326 dnl ---------------------------------------------------------------------------
6327 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
6328 dnl -------------
6329 dnl Remove the given library from the symbol
6330 dnl
6331 dnl $1 = target (which could be the same as the source variable)
6332 dnl $2 = source (including '$')
6333 dnl $3 = library to remove
6334 define([CF_REMOVE_LIB],
6335 [
6336 # remove $3 library from $2
6337 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
6338 ])dnl
6339 dnl ---------------------------------------------------------------------------
6340 dnl CF_RPATH_HACK version: 11 updated: 2013/09/01 13:02:00
6341 dnl -------------
6342 AC_DEFUN([CF_RPATH_HACK],
6343 [
6344 AC_REQUIRE([CF_LD_RPATH_OPT])
6345 AC_MSG_CHECKING(for updated LDFLAGS)
6346 if test -n "$LD_RPATH_OPT" ; then
6347         AC_MSG_RESULT(maybe)
6348
6349         AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
6350         cf_rpath_list="/usr/lib /lib"
6351         if test "$cf_ldd_prog" != no
6352         then
6353                 cf_rpath_oops=
6354
6355 AC_TRY_LINK([#include <stdio.h>],
6356                 [printf("Hello");],
6357                 [cf_rpath_oops=`$cf_ldd_prog conftest$ac_exeext | fgrep ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
6358                  cf_rpath_list=`$cf_ldd_prog conftest$ac_exeext | fgrep / | sed -e 's%^.*[[     ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
6359
6360                 # If we passed the link-test, but get a "not found" on a given library,
6361                 # this could be due to inept reconfiguration of gcc to make it only
6362                 # partly honor /usr/local/lib (or whatever).  Sometimes this behavior
6363                 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
6364                 # /usr/local libraries.
6365                 if test -n "$cf_rpath_oops"
6366                 then
6367                         for cf_rpath_src in $cf_rpath_oops
6368                         do
6369                                 for cf_rpath_dir in \
6370                                         /usr/local \
6371                                         /usr/pkg \
6372                                         /opt/sfw
6373                                 do
6374                                         if test -f $cf_rpath_dir/lib/$cf_rpath_src
6375                                         then
6376                                                 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
6377                                                 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
6378                                                 break
6379                                         fi
6380                                 done
6381                         done
6382                 fi
6383         fi
6384
6385         CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
6386
6387         CF_RPATH_HACK_2(LDFLAGS)
6388         CF_RPATH_HACK_2(LIBS)
6389
6390         CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
6391 else
6392         AC_MSG_RESULT(no)
6393 fi
6394 AC_SUBST(EXTRA_LDFLAGS)
6395 ])dnl
6396 dnl ---------------------------------------------------------------------------
6397 dnl CF_RPATH_HACK_2 version: 7 updated: 2015/04/12 15:39:00
6398 dnl ---------------
6399 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
6400 dnl EXTRA_LDFLAGS for each -L option found.
6401 dnl
6402 dnl $cf_rpath_list contains a list of directories to ignore.
6403 dnl
6404 dnl $1 = variable name to update.  The LDFLAGS variable should be the only one,
6405 dnl      but LIBS often has misplaced -L options.
6406 AC_DEFUN([CF_RPATH_HACK_2],
6407 [
6408 CF_VERBOSE(...checking $1 [$]$1)
6409
6410 cf_rpath_dst=
6411 for cf_rpath_src in [$]$1
6412 do
6413         case $cf_rpath_src in
6414         (-L*)
6415
6416                 # check if this refers to a directory which we will ignore
6417                 cf_rpath_skip=no
6418                 if test -n "$cf_rpath_list"
6419                 then
6420                         for cf_rpath_item in $cf_rpath_list
6421                         do
6422                                 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
6423                                 then
6424                                         cf_rpath_skip=yes
6425                                         break
6426                                 fi
6427                         done
6428                 fi
6429
6430                 if test "$cf_rpath_skip" = no
6431                 then
6432                         # transform the option
6433                         if test "$LD_RPATH_OPT" = "-R " ; then
6434                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
6435                         else
6436                                 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
6437                         fi
6438
6439                         # if we have not already added this, add it now
6440                         cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
6441                         if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
6442                         then
6443                                 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
6444                                 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
6445                         fi
6446                 fi
6447                 ;;
6448         esac
6449         cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
6450 done
6451 $1=$cf_rpath_dst
6452
6453 CF_VERBOSE(...checked $1 [$]$1)
6454 AC_SUBST(EXTRA_LDFLAGS)
6455 ])dnl
6456 dnl ---------------------------------------------------------------------------
6457 dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
6458 dnl --------------
6459 dnl --------------
6460 dnl Attempt to determine the appropriate CC/LD options for creating a shared
6461 dnl library.
6462 dnl
6463 dnl Notes:
6464 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
6465 dnl the build-tree, i.e., by making use of the libraries that are compiled in
6466 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
6467 dnl shared library since that can lead to unexpected results at runtime.
6468 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
6469 dnl libraries are compiled in ../../lib
6470 dnl
6471 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
6472 dnl to install symbolic links to the rel/abi versions of shared libraries.
6473 dnl
6474 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
6475 dnl version when making symbolic links.
6476 dnl
6477 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
6478 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
6479 dnl (ex: libncurses.so.<ver>).
6480 dnl
6481 dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
6482 AC_DEFUN([CF_SHARED_OPTS],
6483 [
6484         AC_REQUIRE([CF_LD_RPATH_OPT])
6485
6486         RM_SHARED_OPTS=
6487         LOCAL_LDFLAGS=
6488         LOCAL_LDFLAGS2=
6489         LD_SHARED_OPTS=
6490         INSTALL_LIB="-m 644"
6491         : ${rel_builddir:=.}
6492
6493         shlibdir=$libdir
6494         AC_SUBST(shlibdir)
6495
6496         MAKE_DLLS="#"
6497         AC_SUBST(MAKE_DLLS)
6498
6499         cf_cv_do_symlinks=no
6500         cf_ld_rpath_opt=
6501         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
6502
6503         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
6504         AC_ARG_WITH(shlib-version,
6505         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
6506         [test -z "$withval" && withval=auto
6507         case $withval in
6508         (yes)
6509                 cf_cv_shlib_version=auto
6510                 ;;
6511         (rel|abi|auto)
6512                 cf_cv_shlib_version=$withval
6513                 ;;
6514         (*)
6515                 AC_MSG_RESULT($withval)
6516                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
6517                 ;;
6518         esac
6519         ],[cf_cv_shlib_version=auto])
6520         AC_MSG_RESULT($cf_cv_shlib_version)
6521
6522         cf_cv_rm_so_locs=no
6523         cf_try_cflags=
6524
6525         # Some less-capable ports of gcc support only -fpic
6526         CC_SHARED_OPTS=
6527
6528         cf_try_fPIC=no
6529         if test "$GCC" = yes
6530         then
6531                 cf_try_fPIC=yes
6532         else
6533                 case $cf_cv_system_name in
6534                 (*linux*)       # e.g., PGI compiler
6535                         cf_try_fPIC=yes
6536                         ;;
6537                 esac
6538         fi
6539
6540         if test "$cf_try_fPIC" = yes
6541         then
6542                 AC_MSG_CHECKING(which $CC option to use)
6543                 cf_save_CFLAGS="$CFLAGS"
6544                 for CC_SHARED_OPTS in -fPIC -fpic ''
6545                 do
6546                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
6547                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
6548                 done
6549                 AC_MSG_RESULT($CC_SHARED_OPTS)
6550                 CFLAGS="$cf_save_CFLAGS"
6551         fi
6552
6553         cf_cv_shlib_version_infix=no
6554
6555         case $cf_cv_system_name in
6556         (aix4.[3-9]*|aix[[5-7]]*)
6557                 if test "$GCC" = yes; then
6558                         CC_SHARED_OPTS='-Wl,-brtl'
6559                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
6560                 else
6561                         CC_SHARED_OPTS='-brtl'
6562                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
6563                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
6564                 fi
6565                 ;;
6566         (beos*)
6567                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
6568                 ;;
6569         (cygwin*)
6570                 CC_SHARED_OPTS=
6571                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
6572                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6573                 cf_cv_shlib_version=cygdll
6574                 cf_cv_shlib_version_infix=cygdll
6575                 shlibdir=$bindir
6576                 MAKE_DLLS=
6577                 cat >mk_shared_lib.sh <<-CF_EOF
6578                 #!$SHELL
6579                 SHARED_LIB=\[$]1
6580                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
6581                 shift
6582                 cat <<-EOF
6583                 Linking shared library
6584                 ** SHARED_LIB \[$]SHARED_LIB
6585                 ** IMPORT_LIB \[$]IMPORT_LIB
6586 EOF
6587                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
6588 CF_EOF
6589                 chmod +x mk_shared_lib.sh
6590                 ;;
6591         (msys*)
6592                 CC_SHARED_OPTS=
6593                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
6594                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6595                 cf_cv_shlib_version=msysdll
6596                 cf_cv_shlib_version_infix=msysdll
6597                 shlibdir=$bindir
6598                 MAKE_DLLS=
6599                 cat >mk_shared_lib.sh <<-CF_EOF
6600                 #!$SHELL
6601                 SHARED_LIB=\[$]1
6602                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
6603                 shift
6604                 cat <<-EOF
6605                 Linking shared library
6606                 ** SHARED_LIB \[$]SHARED_LIB
6607                 ** IMPORT_LIB \[$]IMPORT_LIB
6608 EOF
6609                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
6610 CF_EOF
6611                 chmod +x mk_shared_lib.sh
6612                 ;;
6613         (darwin*)
6614                 cf_try_cflags="no-cpp-precomp"
6615                 CC_SHARED_OPTS="-dynamic"
6616                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
6617                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
6618                 cf_cv_shlib_version_infix=yes
6619                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
6620                         cf_save_LDFLAGS=$LDFLAGS
6621                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
6622                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
6623                                 LDFLAGS=$cf_save_LDFLAGS])
6624                 if test $cf_cv_ldflags_search_paths_first = yes; then
6625                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
6626                 fi
6627                 ;;
6628         (hpux[[7-8]]*)
6629                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
6630                 if test "$GCC" != yes; then
6631                         CC_SHARED_OPTS='+Z'
6632                 fi
6633                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
6634                 INSTALL_LIB="-m 555"
6635                 ;;
6636         (hpux*)
6637                 # (tested with gcc 2.7.2 -- I don't have c89)
6638                 if test "$GCC" = yes; then
6639                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
6640                 else
6641                         CC_SHARED_OPTS='+Z'
6642                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
6643                 fi
6644                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
6645                 # HP-UX shared libraries must be executable, and should be
6646                 # readonly to exploit a quirk in the memory manager.
6647                 INSTALL_LIB="-m 555"
6648                 ;;
6649         (interix*)
6650                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6651                 if test "$cf_cv_shlib_version" = rel; then
6652                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
6653                 else
6654                         cf_shared_soname='`basename $[@]`'
6655                 fi
6656                 CC_SHARED_OPTS=
6657                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
6658                 ;;
6659         (irix*)
6660                 if test "$cf_cv_enable_rpath" = yes ; then
6661                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6662                 fi
6663                 # tested with IRIX 5.2 and 'cc'.
6664                 if test "$GCC" != yes; then
6665                         CC_SHARED_OPTS='-KPIC'
6666                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
6667                 else
6668                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
6669                 fi
6670                 cf_cv_rm_so_locs=yes
6671                 ;;
6672         (linux*|gnu*|k*bsd*-gnu)
6673                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
6674                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
6675                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6676                 fi
6677                 if test "$cf_cv_enable_rpath" = yes ; then
6678                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6679                 fi
6680                 CF_SHARED_SONAME
6681                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
6682                 ;;
6683         (mingw*)
6684                 cf_cv_shlib_version=mingw
6685                 cf_cv_shlib_version_infix=mingw
6686                 shlibdir=$bindir
6687                 MAKE_DLLS=
6688                 if test "$DFT_LWR_MODEL" = "shared" ; then
6689                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
6690                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6691                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
6692                 fi
6693                 CC_SHARED_OPTS=
6694                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
6695                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
6696                 cat >mk_shared_lib.sh <<-CF_EOF
6697                 #!$SHELL
6698                 SHARED_LIB=\[$]1
6699                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
6700                 shift
6701                 cat <<-EOF
6702                 Linking shared library
6703                 ** SHARED_LIB \[$]SHARED_LIB
6704                 ** IMPORT_LIB \[$]IMPORT_LIB
6705 EOF
6706                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
6707 CF_EOF
6708                 chmod +x mk_shared_lib.sh
6709                 ;;
6710         (openbsd[[2-9]].*|mirbsd*)
6711                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
6712                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
6713                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6714                 fi
6715                 if test "$cf_cv_enable_rpath" = yes ; then
6716                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6717                 fi
6718                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6719                 CF_SHARED_SONAME
6720                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
6721                 ;;
6722         (nto-qnx*|openbsd*|freebsd[[12]].*)
6723                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6724                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
6725                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6726                 ;;
6727         (dragonfly*|freebsd*)
6728                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6729                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
6730                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
6731                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
6732                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6733                 fi
6734                 CF_SHARED_SONAME
6735                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
6736                 ;;
6737         (netbsd*)
6738                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
6739                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
6740                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
6741                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6742                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
6743                         if test "$cf_cv_shlib_version" = auto; then
6744                         if test -f /usr/libexec/ld.elf_so; then
6745                                 cf_cv_shlib_version=abi
6746                         else
6747                                 cf_cv_shlib_version=rel
6748                         fi
6749                         fi
6750                         CF_SHARED_SONAME
6751                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
6752                 else
6753                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
6754                 fi
6755                 ;;
6756         (osf*|mls+*)
6757                 # tested with OSF/1 V3.2 and 'cc'
6758                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
6759                 # link with shared libs).
6760                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
6761                 case $host_os in
6762                 (osf4*)
6763                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
6764                         ;;
6765                 esac
6766                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
6767                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
6768                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
6769                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6770                 fi
6771                 cf_cv_rm_so_locs=yes
6772                 ;;
6773         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
6774                 # tested with osr5.0.5
6775                 if test "$GCC" != yes; then
6776                         CC_SHARED_OPTS='-belf -KPIC'
6777                 fi
6778                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
6779                 if test "$cf_cv_enable_rpath" = yes ; then
6780                         # only way is to set LD_RUN_PATH but no switch for it
6781                         RUN_PATH=$libdir
6782                 fi
6783                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6784                 LINK_PROGS='LD_RUN_PATH=${libdir}'
6785                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
6786                 ;;
6787         (sunos4*)
6788                 # tested with SunOS 4.1.1 and gcc 2.7.0
6789                 if test "$GCC" != yes; then
6790                         CC_SHARED_OPTS='-KPIC'
6791                 fi
6792                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
6793                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
6794                 ;;
6795         (solaris2*)
6796                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
6797                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
6798                 if test "$DFT_LWR_MODEL" = "shared" ; then
6799                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
6800                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
6801                 fi
6802                 if test "$cf_cv_enable_rpath" = yes ; then
6803                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
6804                 fi
6805                 CF_SHARED_SONAME
6806                 if test "$GCC" != yes; then
6807                         cf_save_CFLAGS="$CFLAGS"
6808                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
6809                         do
6810                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
6811                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
6812                         done
6813                         CFLAGS="$cf_save_CFLAGS"
6814                         CC_SHARED_OPTS=$cf_shared_opts
6815                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
6816                 else
6817                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
6818                 fi
6819                 ;;
6820         (sysv5uw7*|unix_sv*)
6821                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
6822                 if test "$GCC" != yes; then
6823                         CC_SHARED_OPTS='-KPIC'
6824                 fi
6825                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
6826                 ;;
6827         (*)
6828                 CC_SHARED_OPTS='unknown'
6829                 MK_SHARED_LIB='echo unknown'
6830                 ;;
6831         esac
6832
6833         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
6834         case "$cf_cv_shlib_version" in
6835         (rel|abi)
6836                 case "$MK_SHARED_LIB" in
6837                 (*'-o $[@]')
6838                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
6839                         ;;
6840                 (*)
6841                         AC_MSG_WARN(ignored --with-shlib-version)
6842                         ;;
6843                 esac
6844                 ;;
6845         esac
6846
6847         if test -n "$cf_try_cflags"
6848         then
6849 cat > conftest.$ac_ext <<EOF
6850 #line __oline__ "${as_me:-configure}"
6851 #include <stdio.h>
6852 int main(int argc, char *argv[[]])
6853 {
6854         printf("hello\n");
6855         return (argv[[argc-1]] == 0) ;
6856 }
6857 EOF
6858                 cf_save_CFLAGS="$CFLAGS"
6859                 for cf_opt in $cf_try_cflags
6860                 do
6861                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
6862                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
6863                         if AC_TRY_EVAL(ac_compile); then
6864                                 AC_MSG_RESULT(yes)
6865                                 cf_save_CFLAGS="$CFLAGS"
6866                         else
6867                                 AC_MSG_RESULT(no)
6868                         fi
6869                 done
6870                 CFLAGS="$cf_save_CFLAGS"
6871         fi
6872
6873
6874         # RPATH_LIST is a colon-separated list of directories
6875         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
6876         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
6877
6878         test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
6879
6880         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
6881         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
6882
6883         AC_SUBST(CC_SHARED_OPTS)
6884         AC_SUBST(LD_RPATH_OPT)
6885         AC_SUBST(LD_SHARED_OPTS)
6886         AC_SUBST(MK_SHARED_LIB)
6887         AC_SUBST(RM_SHARED_OPTS)
6888
6889         AC_SUBST(LINK_PROGS)
6890         AC_SUBST(LINK_TESTS)
6891
6892         AC_SUBST(EXTRA_LDFLAGS)
6893         AC_SUBST(LOCAL_LDFLAGS)
6894         AC_SUBST(LOCAL_LDFLAGS2)
6895
6896         AC_SUBST(INSTALL_LIB)
6897         AC_SUBST(RPATH_LIST)
6898 ])dnl
6899 dnl ---------------------------------------------------------------------------
6900 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
6901 dnl ----------------
6902 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
6903 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
6904 dnl option.
6905 dnl
6906 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
6907 dnl If missing, use "rel".
6908 define([CF_SHARED_SONAME],
6909 [
6910         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
6911         if test "$cf_cv_shlib_version" = rel; then
6912                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
6913         else
6914                 cf_cv_shared_soname='`basename $[@]`'
6915         fi
6916 ])
6917 dnl ---------------------------------------------------------------------------
6918 dnl CF_SIGWINCH version: 2 updated: 2019/03/23 19:54:44
6919 dnl -----------
6920 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
6921 dnl programs need this test).
6922 dnl
6923 dnl This is really a Mac OS X 10.4.3 workaround.  Defining _POSIX_C_SOURCE
6924 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses).  Oddly, the struct
6925 dnl winsize declaration is left alone - we may revisit this if Apple choose to
6926 dnl break that part of the interface as well.
6927 AC_DEFUN([CF_SIGWINCH],
6928 [
6929 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
6930         AC_TRY_COMPILE([
6931 #include <sys/types.h>
6932 #include <sys/signal.h>
6933 ],[int x = SIGWINCH],
6934         [cf_cv_define_sigwinch=yes],
6935         [AC_TRY_COMPILE([
6936 #undef _XOPEN_SOURCE
6937 #undef _POSIX_SOURCE
6938 #undef _POSIX_C_SOURCE
6939 #include <sys/types.h>
6940 #include <sys/signal.h>
6941 ],[int x = SIGWINCH],
6942         [cf_cv_define_sigwinch=maybe],
6943         [cf_cv_define_sigwinch=no])
6944 ])
6945 ])
6946
6947 if test "$cf_cv_define_sigwinch" = maybe ; then
6948 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
6949 cf_cv_fixup_sigwinch=unknown
6950 cf_sigwinch=32
6951 while test $cf_sigwinch != 1
6952 do
6953         AC_TRY_COMPILE([
6954 #undef _XOPEN_SOURCE
6955 #undef _POSIX_SOURCE
6956 #undef _POSIX_C_SOURCE
6957 #include <sys/types.h>
6958 #include <sys/signal.h>
6959 ],[
6960 #if SIGWINCH != $cf_sigwinch
6961 make an error
6962 #endif
6963 int x = SIGWINCH],
6964         [cf_cv_fixup_sigwinch=$cf_sigwinch
6965          break])
6966
6967 cf_sigwinch=`expr $cf_sigwinch - 1`
6968 done
6969 ])
6970
6971         if test "$cf_cv_fixup_sigwinch" != unknown ; then
6972                 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
6973         fi
6974 fi
6975 ])dnl
6976 dnl ---------------------------------------------------------------------------
6977 dnl CF_SIG_ATOMIC_T version: 3 updated: 2012/10/04 20:12:20
6978 dnl ---------------
6979 dnl signal handler, but there are some gcc depedencies in that recommendation.
6980 dnl Try anyway.
6981 AC_DEFUN([CF_SIG_ATOMIC_T],
6982 [
6983 AC_MSG_CHECKING(for signal global datatype)
6984 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
6985         for cf_type in \
6986                 "volatile sig_atomic_t" \
6987                 "sig_atomic_t" \
6988                 "int"
6989         do
6990         AC_TRY_COMPILE([
6991 #include <sys/types.h>
6992 #include <signal.h>
6993 #include <stdio.h>
6994
6995 extern $cf_type x;
6996 $cf_type x;
6997 static void handler(int sig)
6998 {
6999         x = 5;
7000 }],
7001                 [signal(SIGINT, handler);
7002                  x = 1],
7003                 [cf_cv_sig_atomic_t=$cf_type],
7004                 [cf_cv_sig_atomic_t=no])
7005                 test "$cf_cv_sig_atomic_t" != no && break
7006         done
7007         ])
7008 AC_MSG_RESULT($cf_cv_sig_atomic_t)
7009 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
7010 ])dnl
7011 dnl ---------------------------------------------------------------------------
7012 dnl CF_SIZECHANGE version: 14 updated: 2018/06/20 20:23:13
7013 dnl -------------
7014 dnl Check for definitions & structures needed for window size-changing
7015 dnl
7016 dnl https://stackoverflow.com/questions/18878141/difference-between-structures-ttysize-and-winsize/50769952#50769952
7017 AC_DEFUN([CF_SIZECHANGE],
7018 [
7019 AC_REQUIRE([CF_STRUCT_TERMIOS])
7020 AC_CACHE_CHECK(declaration of size-change, cf_cv_sizechange,[
7021         cf_cv_sizechange=unknown
7022         cf_save_CPPFLAGS="$CPPFLAGS"
7023
7024 for cf_opts in "" "NEED_PTEM_H"
7025 do
7026
7027         CPPFLAGS="$cf_save_CPPFLAGS"
7028         if test -n "$cf_opts"
7029         then
7030                 CF_APPEND_TEXT(CPPFLAGS,-D$cf_opts)
7031         fi
7032         AC_TRY_COMPILE([#include <sys/types.h>
7033 #ifdef HAVE_TERMIOS_H
7034 #include <termios.h>
7035 #else
7036 #ifdef HAVE_TERMIO_H
7037 #include <termio.h>
7038 #endif
7039 #endif
7040
7041 #ifdef NEED_PTEM_H
7042 /* This is a workaround for SCO:  they neglected to define struct winsize in
7043  * termios.h -- it's only in termio.h and ptem.h
7044  */
7045 #include <sys/stream.h>
7046 #include <sys/ptem.h>
7047 #endif
7048
7049 #ifdef HAVE_SYS_IOCTL_H
7050 #include <sys/ioctl.h>
7051 #endif
7052 ],[
7053 #ifdef TIOCGSIZE
7054         struct ttysize win;     /* SunOS 3.0... */
7055         int y = win.ts_lines;
7056         int x = win.ts_cols;
7057 #else
7058 #ifdef TIOCGWINSZ
7059         struct winsize win;     /* everything else */
7060         int y = win.ws_row;
7061         int x = win.ws_col;
7062 #else
7063         no TIOCGSIZE or TIOCGWINSZ
7064 #endif /* TIOCGWINSZ */
7065 #endif /* TIOCGSIZE */
7066         ],
7067         [cf_cv_sizechange=yes],
7068         [cf_cv_sizechange=no])
7069
7070         CPPFLAGS="$cf_save_CPPFLAGS"
7071         if test "$cf_cv_sizechange" = yes ; then
7072                 echo "size-change succeeded ($cf_opts)" >&AC_FD_CC
7073                 test -n "$cf_opts" && cf_cv_sizechange="$cf_opts"
7074                 break
7075         fi
7076 done
7077 ])
7078 if test "$cf_cv_sizechange" != no ; then
7079         AC_DEFINE(HAVE_SIZECHANGE,1,[Define to 1 if sizechange declarations are provided])
7080         case $cf_cv_sizechange in
7081         (NEED*)
7082                 AC_DEFINE_UNQUOTED($cf_cv_sizechange )
7083                 ;;
7084         esac
7085 fi
7086 ])dnl
7087 dnl ---------------------------------------------------------------------------
7088 dnl CF_SRC_MODULES version: 31 updated: 2019/09/21 18:08:42
7089 dnl --------------
7090 dnl For each parameter, test if the source-directory exists, and if it contains
7091 dnl a 'modules' file.  If so, add to the list $cf_cv_src_modules which we'll
7092 dnl use in CF_LIB_RULES.
7093 dnl
7094 dnl This uses the configured value to make the lists SRC_SUBDIRS and
7095 dnl SUB_MAKEFILES which are used in the makefile-generation scheme.
7096 AC_DEFUN([CF_SRC_MODULES],
7097 [
7098 AC_REQUIRE([CF_CHECK_GNAT_VERSION])
7099 AC_MSG_CHECKING(for src modules)
7100
7101 # dependencies and linker-arguments for test-programs
7102 TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEPS"
7103 TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${LIB_NAME}${DFT_DEP_SUFFIX} $TEST_DEP2"
7104 if test "$DFT_LWR_MODEL" = "libtool"; then
7105         TEST_ARGS="${TEST_DEPS}"
7106         TEST_ARG2="${TEST_DEP2}"
7107 else
7108         TEST_ARGS="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARGS"
7109         TEST_ARG2="-l${LIB_NAME}${USE_ARG_SUFFIX} $TEST_ARG2"
7110 fi
7111
7112 PC_MODULES_TO_MAKE="ncurses${USE_ARG_SUFFIX}"
7113 cf_cv_src_modules=
7114 for cf_dir in $1
7115 do
7116         if test -f $srcdir/$cf_dir/modules; then
7117
7118                 # We may/may not have tack in the distribution, though the
7119                 # makefile is.
7120                 if test $cf_dir = tack ; then
7121                         if test "x$cf_with_tack" != "xyes"; then
7122                                 continue
7123                         fi
7124                 fi
7125
7126                 if test -z "$cf_cv_src_modules"; then
7127                         cf_cv_src_modules=$cf_dir
7128                 else
7129                         cf_cv_src_modules="$cf_cv_src_modules $cf_dir"
7130                 fi
7131
7132                 # Make the ncurses_cfg.h file record the library interface files as
7133                 # well.  These are header files that are the same name as their
7134                 # directory.  Ncurses is the only library that does not follow
7135                 # that pattern.
7136                 if test $cf_dir = tack ; then
7137                         continue
7138                 elif test -f $srcdir/${cf_dir}/${cf_dir}.h; then
7139                         CF_UPPER(cf_have_include,$cf_dir)
7140                         AC_DEFINE_UNQUOTED(HAVE_${cf_have_include}_H)
7141                         AC_DEFINE_UNQUOTED(HAVE_LIB${cf_have_include})
7142                         TEST_DEPS="${LIB_DIR}/${LIB_PREFIX}${cf_dir}${DFT_DEP_SUFFIX} $TEST_DEPS"
7143                         TEST_DEP2="${LIB_2ND}/${LIB_PREFIX}${cf_dir}${DFT_DEP_SUFFIX} $TEST_DEP2"
7144                         if test "$DFT_LWR_MODEL" = "libtool"; then
7145                                 TEST_ARGS="${TEST_DEPS}"
7146                                 TEST_ARG2="${TEST_DEP2}"
7147                         else
7148                                 TEST_ARGS="-l${cf_dir}${USE_ARG_SUFFIX} $TEST_ARGS"
7149                                 TEST_ARG2="-l${cf_dir}${USE_ARG_SUFFIX} $TEST_ARG2"
7150                         fi
7151                         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ${cf_dir}${USE_ARG_SUFFIX}"
7152                 fi
7153         fi
7154 done
7155 AC_MSG_RESULT($cf_cv_src_modules)
7156
7157 TEST_ARGS="-L${LIB_DIR} $TEST_ARGS"
7158 TEST_ARG2="-L${LIB_2ND} $TEST_ARG2"
7159
7160 AC_SUBST(TEST_ARGS)
7161 AC_SUBST(TEST_DEPS)
7162
7163 AC_SUBST(TEST_ARG2)
7164 AC_SUBST(TEST_DEP2)
7165
7166 SRC_SUBDIRS=
7167 if test "x$cf_with_manpages" != xno ; then
7168         SRC_SUBDIRS="$SRC_SUBDIRS man"
7169 fi
7170 SRC_SUBDIRS="$SRC_SUBDIRS include"
7171 for cf_dir in $cf_cv_src_modules
7172 do
7173         SRC_SUBDIRS="$SRC_SUBDIRS $cf_dir"
7174 done
7175 if test "x$cf_with_tests" != "xno" ; then
7176         SRC_SUBDIRS="$SRC_SUBDIRS test"
7177 fi
7178 # always make this, to install the ncurses-config script
7179 SRC_SUBDIRS="$SRC_SUBDIRS misc"
7180 if test "$cf_with_cxx_binding" != no; then
7181         PC_MODULES_TO_MAKE="${PC_MODULES_TO_MAKE} ncurses++${USE_ARG_SUFFIX}"
7182         SRC_SUBDIRS="$SRC_SUBDIRS c++"
7183 fi
7184
7185 test "x$with_termlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TINFO_ARG_SUFFIX"
7186 test "x$with_ticlib" != xno && PC_MODULES_TO_MAKE="$PC_MODULES_TO_MAKE $TICS_ARG_SUFFIX"
7187
7188 AC_SUBST(PC_MODULES_TO_MAKE)
7189
7190 ADA_SUBDIRS=
7191 if test "x$cf_with_ada" = "xyes" && test "x$cf_cv_prog_gnat_correct" = xyes && test -f $srcdir/Ada95/Makefile.in; then
7192         SRC_SUBDIRS="$SRC_SUBDIRS Ada95"
7193         ADA_SUBDIRS="gen src"
7194         if test "x$cf_with_tests" != "xno" ; then
7195                 ADA_SUBDIRS="$ADA_SUBDIRS samples"
7196         fi
7197 fi
7198
7199 SUB_MAKEFILES=
7200 for cf_dir in $SRC_SUBDIRS
7201 do
7202         SUB_MAKEFILES="$SUB_MAKEFILES $cf_dir/Makefile"
7203 done
7204
7205 if test -n "$ADA_SUBDIRS"; then
7206         for cf_dir in $ADA_SUBDIRS
7207         do
7208                 SUB_MAKEFILES="$SUB_MAKEFILES Ada95/$cf_dir/Makefile"
7209         done
7210         AC_SUBST(ADA_SUBDIRS)
7211 fi
7212 ])dnl
7213 dnl ---------------------------------------------------------------------------
7214 dnl CF_STDCPP_LIBRARY version: 11 updated: 2015/10/17 19:03:33
7215 dnl -----------------
7216 dnl Check for -lstdc++, which is GNU's standard C++ library.
7217 dnl If $CXXLIBS is set, add that to the libraries used for test-linking.
7218 dnl If -lstdc++ was not already added to $LIBS or $CXXLIBS, and is needed,
7219 dnl add it to $CXXLIBS.
7220 AC_DEFUN([CF_STDCPP_LIBRARY],
7221 [
7222 if test -n "$GXX" ; then
7223
7224         cf_save="$LIBS"
7225         LIBS="$LIBS $CXXLIBS"
7226         AC_MSG_CHECKING(if we already have C++ library)
7227         AC_TRY_LINK([
7228                         #include <iostream>],[
7229                         std::cout << "Hello World!" << std::endl;],
7230                 [cf_have_libstdcpp=yes],
7231                 [cf_have_libstdcpp=no])
7232         AC_MSG_RESULT($cf_have_libstdcpp)
7233         LIBS="$cf_save"
7234
7235         if test $cf_have_libstdcpp != yes
7236         then
7237                 case $cf_cv_system_name in
7238                 (os2*)
7239                         if test -z "`g++ -dM -E - < /dev/null | grep __KLIBC__`"; then
7240                                 cf_stdcpp_libname=stdcpp
7241                         else
7242                                 cf_stdcpp_libname=stdc++
7243                         fi
7244                         ;;
7245                 (*)
7246                         cf_stdcpp_libname=stdc++
7247                         ;;
7248                 esac
7249
7250                 AC_CACHE_CHECK(for library $cf_stdcpp_libname,cf_cv_libstdcpp,[
7251                         cf_save="$LIBS"
7252                         LIBS="$LIBS $CXXLIBS"
7253                         CF_ADD_LIB($cf_stdcpp_libname)
7254                 AC_TRY_LINK([
7255                                 #include <iostream>],[
7256                                 std::cout << "Hello World!" << std::endl;],
7257                         [cf_cv_libstdcpp=yes],
7258                         [cf_cv_libstdcpp=no])
7259                         LIBS="$cf_save"
7260                 ])
7261                 test "$cf_cv_libstdcpp" = yes && { CF_ADD_LIB($cf_stdcpp_libname,CXXLIBS) }
7262         fi
7263 fi
7264 ])dnl
7265 dnl ---------------------------------------------------------------------------
7266 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
7267 dnl --------------
7268 dnl     Remove "-g" option from the compiler options
7269 AC_DEFUN([CF_STRIP_G_OPT],
7270 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
7271 dnl ---------------------------------------------------------------------------
7272 dnl CF_STRUCT_SIGACTION version: 5 updated: 2012/10/06 17:56:13
7273 dnl -------------------
7274 dnl Check if we need _POSIX_SOURCE defined to use struct sigaction.  We'll only
7275 dnl do this if we've found the sigaction function.
7276 AC_DEFUN([CF_STRUCT_SIGACTION],[
7277 AC_REQUIRE([CF_XOPEN_SOURCE])
7278
7279 if test "$ac_cv_func_sigaction" = yes; then
7280 AC_MSG_CHECKING(whether sigaction needs _POSIX_SOURCE)
7281 AC_TRY_COMPILE([
7282 #include <sys/types.h>
7283 #include <signal.h>],
7284         [struct sigaction act],
7285         [sigact_bad=no],
7286         [
7287 AC_TRY_COMPILE([
7288 #define _POSIX_SOURCE
7289 #include <sys/types.h>
7290 #include <signal.h>],
7291         [struct sigaction act],
7292         [sigact_bad=yes
7293          AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE])],
7294          [sigact_bad=unknown])])
7295 AC_MSG_RESULT($sigact_bad)
7296 fi
7297 ])dnl
7298 dnl ---------------------------------------------------------------------------
7299 dnl CF_STRUCT_TERMIOS version: 9 updated: 2018/06/08 21:57:23
7300 dnl -----------------
7301 dnl Some machines require _POSIX_SOURCE to completely define struct termios.
7302 AC_DEFUN([CF_STRUCT_TERMIOS],[
7303 AC_REQUIRE([CF_XOPEN_SOURCE])
7304
7305 AC_CHECK_HEADERS( \
7306 termio.h \
7307 termios.h \
7308 unistd.h \
7309 sys/ioctl.h \
7310 sys/termio.h \
7311 )
7312
7313 if test "$ac_cv_header_termios_h" = yes ; then
7314         case "$CFLAGS $CPPFLAGS" in
7315         (*-D_POSIX_SOURCE*)
7316                 termios_bad=dunno ;;
7317         (*)     termios_bad=maybe ;;
7318         esac
7319         if test "$termios_bad" = maybe ; then
7320         AC_MSG_CHECKING(whether termios.h needs _POSIX_SOURCE)
7321         AC_TRY_COMPILE([#include <termios.h>],
7322                 [struct termios foo; int x = foo.c_iflag],
7323                 termios_bad=no, [
7324                 AC_TRY_COMPILE([
7325 #define _POSIX_SOURCE
7326 #include <termios.h>],
7327                         [struct termios foo; int x = foo.c_iflag],
7328                         termios_bad=unknown,
7329                         termios_bad=yes AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE]))
7330                         ])
7331         AC_MSG_RESULT($termios_bad)
7332         fi
7333 fi
7334 ])dnl
7335 dnl ---------------------------------------------------------------------------
7336 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
7337 dnl --------------
7338 dnl Construct a search-list for a nonstandard header/lib-file
7339 dnl     $1 = the variable to return as result
7340 dnl     $2 = the package name
7341 dnl     $3 = the subdirectory, e.g., bin, include or lib
7342 AC_DEFUN([CF_SUBDIR_PATH],
7343 [
7344 $1=
7345
7346 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
7347
7348 for cf_subdir_prefix in \
7349         /usr \
7350         /usr/local \
7351         /usr/pkg \
7352         /opt \
7353         /opt/local \
7354         [$]HOME
7355 do
7356         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
7357 done
7358 ])dnl
7359 dnl ---------------------------------------------------------------------------
7360 dnl CF_SUBST_IF version: 2 updated: 2006/06/17 12:33:03
7361 dnl -----------
7362 dnl     Shorthand macro for substituting things that the user may override
7363 dnl     with an environment variable.
7364 dnl
7365 dnl     $1 = condition to pass to "test"
7366 dnl     $2 = environment variable
7367 dnl     $3 = value if the test succeeds
7368 dnl     $4 = value if the test fails
7369 AC_DEFUN([CF_SUBST_IF],
7370 [
7371 if test $1 ; then
7372         $2=$3
7373 ifelse($4,,,[else
7374         $2=$4])
7375 fi
7376 AC_SUBST($2)
7377 ])dnl
7378 dnl ---------------------------------------------------------------------------
7379 dnl CF_SUBST_NCURSES_VERSION version: 8 updated: 2006/09/16 11:40:59
7380 dnl ------------------------
7381 dnl Get the version-number for use in shared-library naming, etc.
7382 AC_DEFUN([CF_SUBST_NCURSES_VERSION],
7383 [
7384 AC_REQUIRE([CF_PROG_EGREP])
7385 NCURSES_MAJOR="`$ac_cv_prog_egrep '^NCURSES_MAJOR[[     ]]*=' $srcdir/dist.mk | sed -e 's/^[[^0-9]]*//'`"
7386 NCURSES_MINOR="`$ac_cv_prog_egrep '^NCURSES_MINOR[[     ]]*=' $srcdir/dist.mk | sed -e 's/^[[^0-9]]*//'`"
7387 NCURSES_PATCH="`$ac_cv_prog_egrep '^NCURSES_PATCH[[     ]]*=' $srcdir/dist.mk | sed -e 's/^[[^0-9]]*//'`"
7388 cf_cv_abi_version=${NCURSES_MAJOR}
7389 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
7390 dnl Show the computed version, for logging
7391 cf_cv_timestamp=`date`
7392 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
7393 dnl We need these values in the generated headers
7394 AC_SUBST(NCURSES_MAJOR)
7395 AC_SUBST(NCURSES_MINOR)
7396 AC_SUBST(NCURSES_PATCH)
7397 dnl We need these values in the generated makefiles
7398 AC_SUBST(cf_cv_rel_version)
7399 AC_SUBST(cf_cv_abi_version)
7400 AC_SUBST(cf_cv_builtin_bool)
7401 AC_SUBST(cf_cv_header_stdbool_h)
7402 AC_SUBST(cf_cv_type_of_bool)dnl
7403 ])dnl
7404 dnl ---------------------------------------------------------------------------
7405 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
7406 dnl ------------------
7407 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
7408 dnl older SCO configurations.
7409 AC_DEFUN([CF_SYS_TIME_SELECT],
7410 [
7411 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
7412 AC_CACHE_VAL(cf_cv_sys_time_select,[
7413 AC_TRY_COMPILE([
7414 #include <sys/types.h>
7415 #ifdef HAVE_SYS_TIME_H
7416 #include <sys/time.h>
7417 #endif
7418 #ifdef HAVE_SYS_SELECT_H
7419 #include <sys/select.h>
7420 #endif
7421 ],[],[cf_cv_sys_time_select=yes],
7422          [cf_cv_sys_time_select=no])
7423          ])
7424 AC_MSG_RESULT($cf_cv_sys_time_select)
7425 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
7426 ])dnl
7427 dnl ---------------------------------------------------------------------------
7428 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
7429 dnl ---------------
7430 dnl Define a top_builddir symbol, for applications that need an absolute path.
7431 AC_DEFUN([CF_TOP_BUILDDIR],
7432 [
7433 top_builddir=ifelse($1,,`pwd`,$1)
7434 AC_SUBST(top_builddir)
7435 ])dnl
7436 dnl ---------------------------------------------------------------------------
7437 dnl CF_TRY_PKG_CONFIG version: 5 updated: 2013/07/06 21:27:06
7438 dnl -----------------
7439 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
7440 dnl available in that form.
7441 dnl
7442 dnl $1 = package name
7443 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
7444 dnl $3 = logic to use if pkg-config does not have the package
7445 AC_DEFUN([CF_TRY_PKG_CONFIG],[
7446 AC_REQUIRE([CF_PKG_CONFIG])
7447
7448 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists $1; then
7449         CF_VERBOSE(found package $1)
7450         cf_pkgconfig_incs="`$PKG_CONFIG --cflags $1 2>/dev/null`"
7451         cf_pkgconfig_libs="`$PKG_CONFIG --libs   $1 2>/dev/null`"
7452         CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
7453         CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
7454         CF_ADD_CFLAGS($cf_pkgconfig_incs)
7455         CF_ADD_LIBS($cf_pkgconfig_libs)
7456         ifelse([$2],,:,[$2])
7457 else
7458         cf_pkgconfig_incs=
7459         cf_pkgconfig_libs=
7460         ifelse([$3],,:,[$3])
7461 fi
7462 ])
7463 dnl ---------------------------------------------------------------------------
7464 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
7465 dnl -------------------
7466 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
7467 dnl can define it successfully.
7468 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
7469 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
7470         AC_TRY_COMPILE([
7471 #include <stdlib.h>
7472 #include <string.h>
7473 #include <sys/types.h>
7474 ],[
7475 #ifndef _XOPEN_SOURCE
7476 make an error
7477 #endif],
7478         [cf_cv_xopen_source=no],
7479         [cf_save="$CPPFLAGS"
7480          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
7481          AC_TRY_COMPILE([
7482 #include <stdlib.h>
7483 #include <string.h>
7484 #include <sys/types.h>
7485 ],[
7486 #ifdef _XOPEN_SOURCE
7487 make an error
7488 #endif],
7489         [cf_cv_xopen_source=no],
7490         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
7491         CPPFLAGS="$cf_save"
7492         ])
7493 ])
7494
7495 if test "$cf_cv_xopen_source" != no ; then
7496         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
7497         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
7498         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
7499         CF_ADD_CFLAGS($cf_temp_xopen_source)
7500 fi
7501 ])
7502 dnl ---------------------------------------------------------------------------
7503 dnl CF_TYPEOF_CHTYPE version: 10 updated: 2017/01/21 11:06:25
7504 dnl ----------------
7505 dnl Determine the type we should use for chtype (and attr_t, which is treated
7506 dnl as the same thing).  We want around 32 bits, so on most machines want a
7507 dnl long, but on newer 64-bit machines, probably want an int.  If we're using
7508 dnl wide characters, we have to have a type compatible with that, as well.
7509 AC_DEFUN([CF_TYPEOF_CHTYPE],
7510 [
7511 AC_MSG_CHECKING([for type of chtype])
7512 AC_CACHE_VAL(cf_cv_typeof_chtype,[
7513                 AC_TRY_RUN([
7514 #define WANT_BITS 31
7515 #include <stdio.h>
7516 int main(void)
7517 {
7518         FILE *fp = fopen("cf_test.out", "w");
7519         if (fp != 0) {
7520                 char *result = "long";
7521                 if (sizeof(unsigned long) > sizeof(unsigned int)) {
7522                         int n;
7523                         unsigned int x, y;
7524                         for (n = 0; n < WANT_BITS; n++) {
7525                                 x = (1 << n);
7526                                 y = (x >> n);
7527                                 if (y != 1 || x == 0) {
7528                                         x = 0;
7529                                         break;
7530                                 }
7531                         }
7532                         /*
7533                          * If x is nonzero, an int is big enough for the bits
7534                          * that we want.
7535                          */
7536                         result = (x != 0) ? "int" : "long";
7537                 }
7538                 fputs(result, fp);
7539                 fclose(fp);
7540         }
7541         ${cf_cv_main_return:-return}(0);
7542 }
7543                 ],
7544                 [cf_cv_typeof_chtype=`cat cf_test.out`],
7545                 [cf_cv_typeof_chtype=long],
7546                 [cf_cv_typeof_chtype=long])
7547                 rm -f cf_test.out
7548         ])
7549 AC_MSG_RESULT($cf_cv_typeof_chtype)
7550
7551 AC_SUBST(cf_cv_typeof_chtype)
7552 AC_DEFINE_UNQUOTED(TYPEOF_CHTYPE,$cf_cv_typeof_chtype,[Define to actual type if needed for chtype])
7553 ])dnl
7554 dnl ---------------------------------------------------------------------------
7555 dnl CF_TYPE_SIGACTION version: 4 updated: 2012/10/06 17:56:13
7556 dnl -----------------
7557 dnl
7558 AC_DEFUN([CF_TYPE_SIGACTION],
7559 [
7560 AC_MSG_CHECKING([for type sigaction_t])
7561 AC_CACHE_VAL(cf_cv_type_sigaction,[
7562         AC_TRY_COMPILE([
7563 #include <signal.h>],
7564                 [sigaction_t x],
7565                 [cf_cv_type_sigaction=yes],
7566                 [cf_cv_type_sigaction=no])])
7567 AC_MSG_RESULT($cf_cv_type_sigaction)
7568 test "$cf_cv_type_sigaction" = yes && AC_DEFINE(HAVE_TYPE_SIGACTION,1,[Define to 1 if we have the sigaction_t type])
7569 ])dnl
7570 dnl ---------------------------------------------------------------------------
7571 dnl CF_UNSIGNED_LITERALS version: 2 updated: 1998/02/07 22:10:16
7572 dnl --------------------
7573 dnl Test if the compiler supports 'U' and 'L' suffixes.  Only old compilers
7574 dnl won't, but they're still there.
7575 AC_DEFUN([CF_UNSIGNED_LITERALS],
7576 [
7577 AC_MSG_CHECKING([if unsigned literals are legal])
7578 AC_CACHE_VAL(cf_cv_unsigned_literals,[
7579         AC_TRY_COMPILE([],[long x = 1L + 1UL + 1U + 1],
7580                 [cf_cv_unsigned_literals=yes],
7581                 [cf_cv_unsigned_literals=no])
7582         ])
7583 AC_MSG_RESULT($cf_cv_unsigned_literals)
7584 ])dnl
7585 dnl ---------------------------------------------------------------------------
7586 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
7587 dnl --------
7588 dnl Make an uppercase version of a variable
7589 dnl $1=uppercase($2)
7590 AC_DEFUN([CF_UPPER],
7591 [
7592 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
7593 ])dnl
7594 dnl ---------------------------------------------------------------------------
7595 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
7596 dnl -----------
7597 dnl Check for multibyte support, and if not found, utf8 compatibility library
7598 AC_DEFUN([CF_UTF8_LIB],
7599 [
7600 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
7601         cf_save_LIBS="$LIBS"
7602         AC_TRY_LINK([
7603 #include <stdlib.h>],[putwc(0,0);],
7604         [cf_cv_utf8_lib=yes],
7605         [CF_FIND_LINKAGE([
7606 #include <libutf8.h>],[putwc(0,0);],utf8,
7607                 [cf_cv_utf8_lib=add-on],
7608                 [cf_cv_utf8_lib=no])
7609 ])])
7610
7611 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
7612 # ncurses/ncursesw:
7613 if test "$cf_cv_utf8_lib" = "add-on" ; then
7614         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
7615         CF_ADD_INCDIR($cf_cv_header_path_utf8)
7616         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
7617         CF_ADD_LIBS($cf_cv_library_file_utf8)
7618 fi
7619 ])dnl
7620 dnl ---------------------------------------------------------------------------
7621 dnl CF_VA_COPY version: 6 updated: 2018/12/04 18:14:25
7622 dnl ----------
7623 dnl check for va_copy, part of stdarg.h starting with ISO C 1999.
7624 dnl Also, workaround for glibc's __va_copy, by checking for both.
7625 dnl Finally, try to accommodate pre-ISO C 1999 headers.
7626 AC_DEFUN([CF_VA_COPY],[
7627 AC_CACHE_CHECK(for va_copy, cf_cv_have_va_copy,[
7628 AC_TRY_LINK([
7629 #include <stdarg.h>
7630 ],[
7631         static va_list dst;
7632         static va_list src;
7633         va_copy(dst, src)],
7634         cf_cv_have_va_copy=yes,
7635         cf_cv_have_va_copy=no)])
7636
7637 if test "$cf_cv_have_va_copy" = yes;
7638 then
7639         AC_DEFINE(HAVE_VA_COPY,1,[Define to 1 if we have va_copy])
7640 else # !cf_cv_have_va_copy
7641
7642 AC_CACHE_CHECK(for __va_copy, cf_cv_have___va_copy,[
7643 AC_TRY_LINK([
7644 #include <stdarg.h>
7645 ],[
7646         static va_list dst;
7647         static va_list src;
7648         __va_copy(dst, src)],
7649         cf_cv_have___va_copy=yes,
7650         cf_cv_have___va_copy=no)])
7651
7652 if test "$cf_cv_have___va_copy" = yes
7653 then
7654         AC_DEFINE(HAVE___VA_COPY,1,[Define to 1 if we have __va_copy])
7655 else # !cf_cv_have___va_copy
7656
7657 AC_CACHE_CHECK(for __builtin_va_copy, cf_cv_have___builtin_va_copy,[
7658 AC_TRY_LINK([
7659 #include <stdarg.h>
7660 ],[
7661         static va_list dst;
7662         static va_list src;
7663         __builtin_va_copy(dst, src)],
7664         cf_cv_have___builtin_va_copy=yes,
7665         cf_cv_have___builtin_va_copy=no)])
7666
7667 test "$cf_cv_have___builtin_va_copy" = yes &&
7668         AC_DEFINE(HAVE___BUILTIN_VA_COPY,1,[Define to 1 if we have __builtin_va_copy])
7669
7670 fi # cf_cv_have___va_copy
7671
7672 fi # cf_cv_have_va_copy
7673
7674 case "${cf_cv_have_va_copy}${cf_cv_have___va_copy}${cf_cv_have___builtin_va_copy}" in
7675 (*yes*)
7676         ;;
7677
7678 (*)
7679         AC_CACHE_CHECK(if we can simply copy va_list, cf_cv_pointer_va_list,[
7680 AC_TRY_LINK([
7681 #include <stdarg.h>
7682 ],[
7683         va_list dst;
7684         va_list src;
7685         dst = src],
7686         cf_cv_pointer_va_list=yes,
7687         cf_cv_pointer_va_list=no)])
7688
7689         if test "$cf_cv_pointer_va_list" = no
7690         then
7691                 AC_CACHE_CHECK(if we can copy va_list indirectly, cf_cv_array_va_list,[
7692 AC_TRY_LINK([
7693 #include <stdarg.h>
7694 ],[
7695         va_list dst;
7696         va_list src;
7697         *dst = *src],
7698                         cf_cv_array_va_list=yes,
7699                         cf_cv_array_va_list=no)])
7700                 test "$cf_cv_array_va_list" = yes && AC_DEFINE(ARRAY_VA_LIST,1,[Define to 1 if we can copy va_list indirectly])
7701         fi
7702         ;;
7703 esac
7704 ])
7705 dnl ---------------------------------------------------------------------------
7706 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
7707 dnl ----------
7708 dnl Use AC_VERBOSE w/o the warnings
7709 AC_DEFUN([CF_VERBOSE],
7710 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
7711 CF_MSG_LOG([$1])
7712 ])dnl
7713 dnl ---------------------------------------------------------------------------
7714 dnl CF_VERSION_INFO version: 7 updated: 2015/04/17 21:13:04
7715 dnl ---------------
7716 dnl Define several useful symbols derived from the VERSION file.  A separate
7717 dnl file is preferred to embedding the version numbers in various scripts.
7718 dnl (automake is a textbook-example of why the latter is a bad idea, but there
7719 dnl are others).
7720 dnl
7721 dnl The file contents are:
7722 dnl     libtool-version release-version patch-version
7723 dnl or
7724 dnl     release-version
7725 dnl where
7726 dnl     libtool-version (see ?) consists of 3 integers separated by '.'
7727 dnl     release-version consists of a major version and minor version
7728 dnl             separated by '.', optionally followed by a patch-version
7729 dnl             separated by '-'.  The minor version need not be an
7730 dnl             integer (but it is preferred).
7731 dnl     patch-version is an integer in the form yyyymmdd, so ifdef's and
7732 dnl             scripts can easily compare versions.
7733 dnl
7734 dnl If libtool is used, the first form is required, since CF_WITH_LIBTOOL
7735 dnl simply extracts the first field using 'cut -f1'.
7736 dnl
7737 dnl Optional parameters:
7738 dnl $1 = internal name for package
7739 dnl $2 = external name for package
7740 AC_DEFUN([CF_VERSION_INFO],
7741 [
7742 if test -f $srcdir/VERSION ; then
7743         AC_MSG_CHECKING(for package version)
7744
7745         # if there are not enough fields, cut returns the last one...
7746         cf_field1=`sed -e '2,$d' $srcdir/VERSION|cut -f1`
7747         cf_field2=`sed -e '2,$d' $srcdir/VERSION|cut -f2`
7748         cf_field3=`sed -e '2,$d' $srcdir/VERSION|cut -f3`
7749
7750         # this is how CF_BUNDLED_INTL uses $VERSION:
7751         VERSION="$cf_field1"
7752
7753         VERSION_MAJOR=`echo "$cf_field2" | sed -e 's/\..*//'`
7754         test -z "$VERSION_MAJOR" && AC_MSG_ERROR(missing major-version)
7755
7756         VERSION_MINOR=`echo "$cf_field2" | sed -e 's/^[[^.]]*\.//' -e 's/-.*//'`
7757         test -z "$VERSION_MINOR" && AC_MSG_ERROR(missing minor-version)
7758
7759         AC_MSG_RESULT(${VERSION_MAJOR}.${VERSION_MINOR})
7760
7761         AC_MSG_CHECKING(for package patch date)
7762         VERSION_PATCH=`echo "$cf_field3" | sed -e 's/^[[^-]]*-//'`
7763         case .$VERSION_PATCH in
7764         (.)
7765                 AC_MSG_ERROR(missing patch-date $VERSION_PATCH)
7766                 ;;
7767         (.[[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]][[0-9]])
7768                 ;;
7769         (*)
7770                 AC_MSG_ERROR(illegal patch-date $VERSION_PATCH)
7771                 ;;
7772         esac
7773         AC_MSG_RESULT($VERSION_PATCH)
7774 else
7775         AC_MSG_ERROR(did not find $srcdir/VERSION)
7776 fi
7777
7778 # show the actual data that we have for versions:
7779 CF_VERBOSE(ABI VERSION $VERSION)
7780 CF_VERBOSE(VERSION_MAJOR $VERSION_MAJOR)
7781 CF_VERBOSE(VERSION_MINOR $VERSION_MINOR)
7782 CF_VERBOSE(VERSION_PATCH $VERSION_PATCH)
7783
7784 AC_SUBST(VERSION)
7785 AC_SUBST(VERSION_MAJOR)
7786 AC_SUBST(VERSION_MINOR)
7787 AC_SUBST(VERSION_PATCH)
7788
7789 dnl if a package name is given, define its corresponding version info.  We
7790 dnl need the package name to ensure that the defined symbols are unique.
7791 ifelse($1,,,[
7792         cf_PACKAGE=$1
7793         PACKAGE=ifelse($2,,$1,$2)
7794         AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",[Define to the package-name])
7795         AC_SUBST(PACKAGE)
7796         CF_UPPER(cf_PACKAGE,$cf_PACKAGE)
7797         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_VERSION,"${VERSION_MAJOR}.${VERSION_MINOR}")
7798         AC_DEFINE_UNQUOTED(${cf_PACKAGE}_PATCHDATE,${VERSION_PATCH})
7799 ])
7800 ])dnl
7801 dnl ---------------------------------------------------------------------------
7802 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
7803 dnl -------------
7804 dnl Check if type wide-character type $1 is declared, and if so, which header
7805 dnl file is needed.  The second parameter is used to set a shell variable when
7806 dnl the type is not found.  The first parameter sets a shell variable for the
7807 dnl opposite sense.
7808 AC_DEFUN([CF_WCHAR_TYPE],
7809 [
7810 # This is needed on Tru64 5.0 to declare $1
7811 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
7812 AC_TRY_COMPILE([
7813 #include <stdlib.h>
7814 #include <stdarg.h>
7815 #include <stdio.h>
7816 #ifdef HAVE_LIBUTF8_H
7817 #include <libutf8.h>
7818 #endif],
7819         [$1 state],
7820         [cf_cv_$1=no],
7821         [AC_TRY_COMPILE([
7822 #include <stdlib.h>
7823 #include <stdarg.h>
7824 #include <stdio.h>
7825 #include <wchar.h>
7826 #ifdef HAVE_LIBUTF8_H
7827 #include <libutf8.h>
7828 #endif],
7829         [$1 value],
7830         [cf_cv_$1=yes],
7831         [cf_cv_$1=unknown])])])
7832
7833 if test "$cf_cv_$1" = yes ; then
7834         AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
7835         NEED_WCHAR_H=1
7836 fi
7837
7838 ifelse([$2],,,[
7839 # if we do not find $1 in either place, use substitution to provide a fallback.
7840 if test "$cf_cv_$1" = unknown ; then
7841         $2=1
7842 fi
7843 ])
7844 ifelse($3,,,[
7845 # if we find $1 in either place, use substitution to provide a fallback.
7846 if test "$cf_cv_$1" != unknown ; then
7847         $3=1
7848 fi
7849 ])
7850 ])dnl
7851 dnl ---------------------------------------------------------------------------
7852 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
7853 dnl ---------------
7854 dnl Check for compiler-support for weak symbols.
7855 dnl This works with "recent" gcc.
7856 AC_DEFUN([CF_WEAK_SYMBOLS],[
7857 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
7858
7859 AC_TRY_COMPILE([
7860 #include <stdio.h>],
7861 [
7862 #if defined(__GNUC__)
7863 #  if defined __USE_ISOC99
7864 #    define _cat_pragma(exp)    _Pragma(#exp)
7865 #    define _weak_pragma(exp)   _cat_pragma(weak name)
7866 #  else
7867 #    define _weak_pragma(exp)
7868 #  endif
7869 #  define _declare(name)        __extension__ extern __typeof__(name) name
7870 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
7871 #endif
7872
7873 weak_symbol(fopen);
7874 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
7875 ])
7876 ])dnl
7877 dnl ---------------------------------------------------------------------------
7878 dnl CF_WITH_ABI_VERSION version: 3 updated: 2015/06/06 16:10:11
7879 dnl -------------------
7880 dnl Allow library's ABI to be overridden.  Generally this happens when a
7881 dnl packager has incremented the ABI past that used in the original package,
7882 dnl and wishes to keep doing this.
7883 dnl
7884 dnl $1 is the package name, if any, to derive a corresponding {package}_ABI
7885 dnl symbol.
7886 AC_DEFUN([CF_WITH_ABI_VERSION],[
7887 test -z "$cf_cv_abi_version" && cf_cv_abi_version=0
7888 AC_ARG_WITH(abi-version,
7889 [  --with-abi-version=XXX  override derived ABI version],[
7890         if test "x$cf_cv_abi_version" != "x$withval"
7891         then
7892                 AC_MSG_WARN(overriding ABI version $cf_cv_abi_version to $withval)
7893                 case $cf_cv_rel_version in
7894                 (5.*)
7895                         cf_cv_rel_version=$withval.0
7896                         ;;
7897                 (6.*)
7898                         cf_cv_rel_version=$withval.9    # FIXME: should be 10 as of 6.0 release
7899                         ;;
7900                 esac
7901         fi
7902         cf_cv_abi_version=$withval])
7903         CF_NUMBER_SYNTAX($cf_cv_abi_version,ABI version)
7904 ifelse($1,,,[
7905 $1_ABI=$cf_cv_abi_version
7906 ])
7907 ])dnl
7908 dnl ---------------------------------------------------------------------------
7909 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
7910 dnl --------------------
7911 dnl Command-line option to specify the Ada95 compiler.
7912 AC_DEFUN([CF_WITH_ADA_COMPILER],[
7913 AC_MSG_CHECKING(for ada-compiler)
7914 AC_ARG_WITH(ada-compiler,
7915         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
7916         [cf_ada_compiler=$withval],
7917         [cf_ada_compiler=gnatmake])
7918 AC_SUBST(cf_ada_compiler)
7919 AC_MSG_RESULT($cf_ada_compiler)
7920 ])dnl
7921 dnl ---------------------------------------------------------------------------
7922 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
7923 dnl -------------------
7924 dnl Command-line option to specify where Ada includes will install.
7925 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
7926 AC_MSG_CHECKING(for ada-include)
7927 CF_WITH_PATH(ada-include,
7928    [  --with-ada-include=DIR  Ada includes are in DIR],
7929    ADA_INCLUDE,
7930    PREFIX/share/ada/adainclude,
7931    [$]prefix/share/ada/adainclude)
7932 AC_SUBST(ADA_INCLUDE)
7933 AC_MSG_RESULT($ADA_INCLUDE)
7934 ])dnl
7935 dnl ---------------------------------------------------------------------------
7936 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
7937 dnl -------------------
7938 dnl CF_WITH_ADA_LIBNAME
7939 dnl -------------------
7940 dnl Command-line option to specify how to name the resulting Ada library.
7941 dnl $1 = default value
7942 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
7943 AC_MSG_CHECKING(for ada-libname)
7944 AC_ARG_WITH(ada-libname,
7945    [  --with-ada-libname=XXX  override default Ada library-name],
7946    ADA_LIBNAME=[$]withval,
7947    ADA_LIBNAME=$1)
7948 case "x$ADA_LIBNAME" in
7949 (x|xyes|xno)
7950         ADA_LIBNAME=$1
7951         ;;
7952 esac
7953 AC_SUBST(ADA_LIBNAME)
7954 AC_MSG_RESULT($ADA_LIBNAME)
7955 ])dnl
7956 dnl ---------------------------------------------------------------------------
7957 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
7958 dnl -------------------
7959 dnl Command-line option to specify where Ada objects will install.
7960 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
7961 AC_MSG_CHECKING(for ada-objects)
7962 CF_WITH_PATH(ada-objects,
7963    [  --with-ada-objects=DIR  Ada objects are in DIR],
7964    ADA_OBJECTS,
7965    PREFIX/lib/ada/adalib,
7966    [$]prefix/lib/ada/adalib)
7967 AC_SUBST(ADA_OBJECTS)
7968 AC_MSG_RESULT($ADA_OBJECTS)
7969 ])dnl
7970 dnl ---------------------------------------------------------------------------
7971 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
7972 dnl ---------------------
7973 dnl Command-line option to specify if an Ada95 shared-library should be built,
7974 dnl and optionally what its soname should be.
7975 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
7976 AC_REQUIRE([CF_GNAT_PROJECTS])
7977 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
7978 AC_ARG_WITH(ada-sharedlib,
7979         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
7980         [with_ada_sharedlib=$withval],
7981         [with_ada_sharedlib=no])
7982 AC_MSG_RESULT($with_ada_sharedlib)
7983
7984 if test "x$with_ada_sharedlib" != xno
7985 then
7986         if test "x$cf_gnat_projects" != xyes
7987         then
7988                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
7989                 with_ada_sharedlib=no
7990         fi
7991 fi
7992
7993 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
7994 MAKE_ADA_SHAREDLIB="#"
7995
7996 if test "x$with_ada_sharedlib" != xno
7997 then
7998         MAKE_ADA_SHAREDLIB=
7999         if test "x$with_ada_sharedlib" != xyes
8000         then
8001                 ADA_SHAREDLIB="$with_ada_sharedlib"
8002         fi
8003 fi
8004
8005 AC_SUBST(ADA_SHAREDLIB)
8006 AC_SUBST(MAKE_ADA_SHAREDLIB)
8007 ])dnl
8008 dnl ---------------------------------------------------------------------------
8009 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
8010 dnl ----------------
8011 dnl Configure-option for dbmalloc.  The optional parameter is used to override
8012 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8013 AC_DEFUN([CF_WITH_DBMALLOC],[
8014 CF_NO_LEAKS_OPTION(dbmalloc,
8015         [  --with-dbmalloc         test: use Conor Cahill's dbmalloc library],
8016         [USE_DBMALLOC])
8017
8018 if test "$with_dbmalloc" = yes ; then
8019         AC_CHECK_HEADER(dbmalloc.h,
8020                 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
8021 fi
8022 ])dnl
8023 dnl ---------------------------------------------------------------------------
8024 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
8025 dnl ---------------
8026 dnl Configure-option for dmalloc.  The optional parameter is used to override
8027 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
8028 AC_DEFUN([CF_WITH_DMALLOC],[
8029 CF_NO_LEAKS_OPTION(dmalloc,
8030         [  --with-dmalloc          test: use Gray Watson's dmalloc library],
8031         [USE_DMALLOC])
8032
8033 if test "$with_dmalloc" = yes ; then
8034         AC_CHECK_HEADER(dmalloc.h,
8035                 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
8036 fi
8037 ])dnl
8038 dnl ---------------------------------------------------------------------------
8039 dnl CF_WITH_EXPORT_SYMS version: 3 updated: 2014/12/20 19:16:08
8040 dnl -------------------
8041 dnl Use this with libtool to specify the list of symbols that may be exported.
8042 dnl The input file contains one symbol per line; comments work with "#".
8043 dnl
8044 dnl $1 = basename of the ".sym" file (default $PACKAGE)
8045 AC_DEFUN([CF_WITH_EXPORT_SYMS],
8046 [
8047 AC_MSG_CHECKING(if exported-symbols file should be used)
8048 AC_ARG_WITH(export-syms,
8049         [  --with-export-syms=XXX  limit exported symbols using libtool],
8050         [with_export_syms=$withval],
8051         [with_export_syms=no])
8052 if test "x$with_export_syms" = xyes
8053 then
8054         with_export_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).sym'
8055         AC_SUBST(PACKAGE)
8056 fi
8057 AC_MSG_RESULT($with_export_syms)
8058 if test "x$with_export_syms" != xno
8059 then
8060         EXPORT_SYMS="-export-symbols $with_export_syms"
8061         AC_SUBST(EXPORT_SYMS)
8062 fi
8063 ])dnl
8064 dnl ---------------------------------------------------------------------------
8065 dnl CF_WITH_GPM version: 10 updated: 2017/04/29 18:32:18
8066 dnl -----------
8067 dnl
8068 dnl The option parameter (if neither yes/no) is assumed to be the name of
8069 dnl the gpm library, e.g., for dynamic loading.
8070 AC_DEFUN([CF_WITH_GPM],
8071 [
8072 AC_MSG_CHECKING(if you want to link with the GPM mouse library)
8073 AC_ARG_WITH(gpm,
8074         [  --with-gpm              use Alessandro Rubini's GPM library],
8075         [with_gpm=$withval],
8076         [with_gpm=maybe])
8077 AC_MSG_RESULT($with_gpm)
8078
8079 if test "$with_gpm" != no ; then
8080         AC_CHECK_HEADER(gpm.h,[
8081                 AC_DEFINE(HAVE_GPM_H,1,[Define to 1 if we have gpm.h header])
8082                 if test "$with_gpm" != yes && test "$with_gpm" != maybe ; then
8083                         CF_VERBOSE(assuming we really have GPM library)
8084                         AC_DEFINE(HAVE_LIBGPM,1,[Define to 1 if we have the gpm library])
8085                         with_gpm=yes
8086                 else
8087                         AC_CHECK_LIB(gpm,Gpm_Open,[with_gpm=yes],[
8088                                 if test "$with_gpm" = maybe; then
8089                                         AC_MSG_WARN(Cannot link with GPM library)
8090                                         with_gpm=no
8091                                 else
8092                                         AC_MSG_ERROR(Cannot link with GPM library)
8093                                 fi
8094                         ])
8095                 fi
8096         ],[
8097                 test "$with_gpm" != maybe && AC_MSG_WARN(Cannot find GPM header)
8098                 with_gpm=no
8099         ])
8100 fi
8101 ])
8102 dnl ---------------------------------------------------------------------------
8103 dnl CF_WITH_LIBTOOL version: 35 updated: 2017/08/12 07:58:51
8104 dnl ---------------
8105 dnl Provide a configure option to incorporate libtool.  Define several useful
8106 dnl symbols for the makefile rules.
8107 dnl
8108 dnl The reference to AC_PROG_LIBTOOL does not normally work, since it uses
8109 dnl macros from libtool.m4 which is in the aclocal directory of automake.
8110 dnl Following is a simple script which turns on the AC_PROG_LIBTOOL macro.
8111 dnl But that still does not work properly since the macro is expanded outside
8112 dnl the CF_WITH_LIBTOOL macro:
8113 dnl
8114 dnl     #!/bin/sh
8115 dnl     ACLOCAL=`aclocal --print-ac-dir`
8116 dnl     if test -z "$ACLOCAL" ; then
8117 dnl             echo cannot find aclocal directory
8118 dnl             exit 1
8119 dnl     elif test ! -f $ACLOCAL/libtool.m4 ; then
8120 dnl             echo cannot find libtool.m4 file
8121 dnl             exit 1
8122 dnl     fi
8123 dnl
8124 dnl     LOCAL=aclocal.m4
8125 dnl     ORIG=aclocal.m4.orig
8126 dnl
8127 dnl     trap "mv $ORIG $LOCAL" 0 1 2 3 15
8128 dnl     rm -f $ORIG
8129 dnl     mv $LOCAL $ORIG
8130 dnl
8131 dnl     # sed the LIBTOOL= assignment to omit the current directory?
8132 dnl     sed -e 's/^LIBTOOL=.*/LIBTOOL=${LIBTOOL:-libtool}/' $ACLOCAL/libtool.m4 >>$LOCAL
8133 dnl     cat $ORIG >>$LOCAL
8134 dnl
8135 dnl     autoconf-257 $*
8136 dnl
8137 AC_DEFUN([CF_WITH_LIBTOOL],
8138 [
8139 AC_REQUIRE([CF_DISABLE_LIBTOOL_VERSION])
8140 ifdef([AC_PROG_LIBTOOL],,[
8141 LIBTOOL=
8142 ])
8143 # common library maintenance symbols that are convenient for libtool scripts:
8144 LIB_CREATE='${AR} -cr'
8145 LIB_OBJECT='${OBJECTS}'
8146 LIB_SUFFIX=.a
8147 LIB_PREP="$RANLIB"
8148
8149 # symbols used to prop libtool up to enable it to determine what it should be
8150 # doing:
8151 LIB_CLEAN=
8152 LIB_COMPILE=
8153 LIB_LINK='${CC}'
8154 LIB_INSTALL=
8155 LIB_UNINSTALL=
8156
8157 AC_MSG_CHECKING(if you want to build libraries with libtool)
8158 AC_ARG_WITH(libtool,
8159         [  --with-libtool          generate libraries with libtool],
8160         [with_libtool=$withval],
8161         [with_libtool=no])
8162 AC_MSG_RESULT($with_libtool)
8163 if test "$with_libtool" != "no"; then
8164 ifdef([AC_PROG_LIBTOOL],[
8165         # missing_content_AC_PROG_LIBTOOL{{
8166         AC_PROG_LIBTOOL
8167         # missing_content_AC_PROG_LIBTOOL}}
8168 ],[
8169         if test "$with_libtool" != "yes" ; then
8170                 CF_PATH_SYNTAX(with_libtool)
8171                 LIBTOOL=$with_libtool
8172         else
8173                 AC_CHECK_TOOLS(LIBTOOL,[libtool glibtool],none)
8174                 CF_LIBTOOL_VERSION
8175                 if test -z "$cf_cv_libtool_version" && test "$LIBTOOL" = libtool
8176                 then
8177                         CF_FORGET_TOOL(LIBTOOL)
8178                         AC_CHECK_TOOLS(LIBTOOL,[glibtool],none)
8179                         CF_LIBTOOL_VERSION
8180                 fi
8181         fi
8182         if test -z "$LIBTOOL" ; then
8183                 AC_MSG_ERROR(Cannot find libtool)
8184         fi
8185 ])dnl
8186         LIB_CREATE='${LIBTOOL} --mode=link ${CC} -rpath ${libdir} ${LIBTOOL_VERSION} `cut -f1 ${top_srcdir}/VERSION` ${LIBTOOL_OPTS} ${LT_UNDEF} $(LIBS) -o'
8187         LIB_OBJECT='${OBJECTS:.o=.lo}'
8188         LIB_SUFFIX=.la
8189         LIB_CLEAN='${LIBTOOL} --mode=clean'
8190         LIB_COMPILE='${LIBTOOL} --mode=compile'
8191         LIB_LINK='${LIBTOOL} --mode=link ${CC} ${LIBTOOL_OPTS}'
8192         LIB_INSTALL='${LIBTOOL} --mode=install'
8193         LIB_UNINSTALL='${LIBTOOL} --mode=uninstall'
8194         LIB_PREP=:
8195
8196         CF_CHECK_LIBTOOL_VERSION
8197
8198         # special hack to add -no-undefined (which libtool should do for itself)
8199         LT_UNDEF=
8200         case "$cf_cv_system_name" in
8201         (cygwin*|msys*|mingw32*|os2*|uwin*|aix[[4-7]])
8202                 LT_UNDEF=-no-undefined
8203                 ;;
8204         esac
8205         AC_SUBST([LT_UNDEF])
8206
8207         # special hack to add --tag option for C++ compiler
8208         case $cf_cv_libtool_version in
8209         (1.[[5-9]]*|[[2-9]].[[0-9.a-z]]*)
8210                 LIBTOOL_CXX="$LIBTOOL --tag=CXX"
8211                 LIBTOOL="$LIBTOOL --tag=CC"
8212                 ;;
8213         (*)
8214                 LIBTOOL_CXX="$LIBTOOL"
8215                 ;;
8216         esac
8217 else
8218         LIBTOOL=""
8219         LIBTOOL_CXX=""
8220 fi
8221
8222 test -z "$LIBTOOL" && ECHO_LT=
8223
8224 AC_SUBST(LIBTOOL)
8225 AC_SUBST(LIBTOOL_CXX)
8226 AC_SUBST(LIBTOOL_OPTS)
8227
8228 AC_SUBST(LIB_CREATE)
8229 AC_SUBST(LIB_OBJECT)
8230 AC_SUBST(LIB_SUFFIX)
8231 AC_SUBST(LIB_PREP)
8232
8233 AC_SUBST(LIB_CLEAN)
8234 AC_SUBST(LIB_COMPILE)
8235 AC_SUBST(LIB_LINK)
8236 AC_SUBST(LIB_INSTALL)
8237 AC_SUBST(LIB_UNINSTALL)
8238
8239 ])dnl
8240 dnl ---------------------------------------------------------------------------
8241 dnl CF_WITH_LIBTOOL_OPTS version: 4 updated: 2015/04/17 21:13:04
8242 dnl --------------------
8243 dnl Allow user to pass additional libtool options into the library creation
8244 dnl and link steps.  The main use for this is to do something like
8245 dnl     ./configure --with-libtool-opts=-static
8246 dnl to get the same behavior as automake-flavored
8247 dnl     ./configure --enable-static
8248 AC_DEFUN([CF_WITH_LIBTOOL_OPTS],[
8249 AC_MSG_CHECKING(for additional libtool options)
8250 AC_ARG_WITH(libtool-opts,
8251         [  --with-libtool-opts=XXX specify additional libtool options],
8252         [with_libtool_opts=$withval],
8253         [with_libtool_opts=no])
8254 AC_MSG_RESULT($with_libtool_opts)
8255
8256 case .$with_libtool_opts in
8257 (.yes|.no|.)
8258         ;;
8259 (*)
8260         LIBTOOL_OPTS="$LIBTOOL_OPTS $with_libtool_opts"
8261         ;;
8262 esac
8263
8264 AC_SUBST(LIBTOOL_OPTS)
8265 ])dnl
8266 dnl ---------------------------------------------------------------------------
8267 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
8268 dnl ------------------
8269 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
8270 dnl "lib" prefix, e.g., because it used the dll naming convention.
8271 dnl
8272 dnl $1 = variable to set
8273 AC_DEFUN([CF_WITH_LIB_PREFIX],
8274 [
8275 AC_MSG_CHECKING(if you want to have a library-prefix)
8276 AC_ARG_WITH(lib-prefix,
8277         [  --with-lib-prefix       override library-prefix],
8278         [with_lib_prefix=$withval],
8279         [with_lib_prefix=auto])
8280 AC_MSG_RESULT($with_lib_prefix)
8281
8282 if test $with_lib_prefix = auto
8283 then
8284         CF_LIB_PREFIX($1)
8285 elif test $with_lib_prefix = no
8286 then
8287         LIB_PREFIX=
8288 else
8289         LIB_PREFIX=$with_lib_prefix
8290 fi
8291 ])dnl
8292 dnl ---------------------------------------------------------------------------
8293 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
8294 dnl ------------
8295 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
8296 dnl defaulting to yes/no.
8297 dnl
8298 dnl $1 = option name
8299 dnl $2 = help-text
8300 dnl $3 = environment variable to set
8301 dnl $4 = default value, shown in the help-message, must be a constant
8302 dnl $5 = default value, if it's an expression & cannot be in the help-message
8303 dnl
8304 AC_DEFUN([CF_WITH_PATH],
8305 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
8306 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
8307 if ifelse([$5],,true,[test -n "$5"]) ; then
8308 CF_PATH_SYNTAX(withval)
8309 fi
8310 eval $3="$withval"
8311 AC_SUBST($3)dnl
8312 ])dnl
8313 dnl ---------------------------------------------------------------------------
8314 dnl CF_WITH_PATHLIST version: 10 updated: 2015/04/17 21:13:04
8315 dnl ----------------
8316 dnl Process an option specifying a list of colon-separated paths.
8317 dnl
8318 dnl $1 = option name
8319 dnl $2 = help-text
8320 dnl $3 = environment variable to set
8321 dnl $4 = default value, shown in the help-message, must be a constant
8322 dnl $5 = default value, if it's an expression & cannot be in the help-message
8323 dnl $6 = flag to tell if we want to define or substitute
8324 dnl
8325 AC_DEFUN([CF_WITH_PATHLIST],[
8326 AC_REQUIRE([CF_PATHSEP])
8327 AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
8328 ifelse($4,,[withval=${$3}],[withval=${$3:-ifelse($5,,$4,$5)}]))dnl
8329
8330 IFS="${IFS:-    }"; ac_save_ifs="$IFS"; IFS="${PATH_SEPARATOR}"
8331 cf_dst_path=
8332 for cf_src_path in $withval
8333 do
8334   CF_PATH_SYNTAX(cf_src_path)
8335   test -n "$cf_dst_path" && cf_dst_path="${cf_dst_path}$PATH_SEPARATOR"
8336   cf_dst_path="${cf_dst_path}${cf_src_path}"
8337 done
8338 IFS="$ac_save_ifs"
8339
8340 ifelse($6,define,[
8341 # Strip single quotes from the value, e.g., when it was supplied as a literal
8342 # for $4 or $5.
8343 case $cf_dst_path in
8344 (\'*)
8345   cf_dst_path=`echo $cf_dst_path |sed -e s/\'// -e s/\'\$//`
8346   ;;
8347 esac
8348 cf_dst_path=`echo "$cf_dst_path" | sed -e 's/\\\\/\\\\\\\\/g'`
8349 ])
8350
8351 # This may use the prefix/exec_prefix symbols which will only yield "NONE"
8352 # so we have to check/work around.  We do prefer the result of "eval"...
8353 eval cf_dst_eval="$cf_dst_path"
8354 case "x$cf_dst_eval" in
8355 (xNONE*)
8356         $3=$cf_dst_path
8357         ;;
8358 (*)
8359         $3="$cf_dst_eval"
8360         ;;
8361 esac
8362 AC_SUBST($3)dnl
8363
8364 ])dnl
8365 dnl ---------------------------------------------------------------------------
8366 dnl CF_WITH_PATH_PROG version: 1 updated: 2019/06/30 19:44:43
8367 dnl -----------------
8368 dnl Check for a given program, like CF_PATH_PROG, but allow override using a
8369 dnl "--with-xxx" option.
8370 dnl
8371 dnl Parameters:
8372 dnl             $1 = environment variable to set/update
8373 dnl             $2 = program name
8374 dnl             $3 = help-text
8375 dnl             $4 = $PATH
8376 AC_DEFUN([CF_WITH_PATH_PROG],[
8377 AC_ARG_WITH($2-path,
8378         [  --with-$2-path=XXX     specify path of $2 ifelse($3,,,$3)],
8379         [AC_MSG_CHECKING(for $2 program ifelse($3,,,$3))
8380                 $1=$withval
8381                 AC_MSG_RESULT([$]$1)
8382                 CF_PATH_SYNTAX($1)
8383         ],
8384         [CF_PATH_PROG($1,$2,,ifelse($4,,,$4))
8385                 if test -z "[$]$1"
8386                 then
8387                         AC_MSG_WARN(no $2 program found ifelse($3,,,$3))
8388                 fi
8389         ])
8390 ])
8391 dnl ---------------------------------------------------------------------------
8392 dnl CF_WITH_PCRE2 version: 2 updated: 2018/07/14 16:47:56
8393 dnl -------------
8394 dnl Add PCRE2 (Perl-compatible regular expressions v2) to the build if it is
8395 dnl available and the user requests it.  Assume the application will otherwise
8396 dnl use the POSIX interface.
8397 dnl
8398 dnl TODO allow $withval to specify package location
8399 AC_DEFUN([CF_WITH_PCRE2],
8400 [
8401 AC_REQUIRE([CF_PKG_CONFIG])
8402
8403 AC_MSG_CHECKING(if you want to use PCRE2 for regular-expressions)
8404 AC_ARG_WITH(pcre2,
8405         [  --with-pcre2            use PCRE2 for regular-expressions])
8406 test -z "$with_pcre2" && with_pcre2=no
8407 AC_MSG_RESULT($with_pcre2)
8408
8409 if test "x$with_pcre2" != xno ; then
8410         CF_TRY_PKG_CONFIG(libpcre2,,[
8411         CF_TRY_PKG_CONFIG(libpcre,,[
8412                         AC_MSG_ERROR(Cannot find PCRE2 library)])])
8413
8414         AC_DEFINE(HAVE_LIB_PCRE2,1,[Define to 1 if we can/should compile with the PCRE2 library])
8415
8416         # if pkgconfig gave no results, look for the libraries directly
8417         case $LIBS in
8418         (*pcre2-posix*|*pcreposix*)
8419                 ;;
8420         (*)
8421                 AC_CHECK_LIB(pcre2-posix,regcomp,[
8422                         CF_ADD_LIB(pcre2-posix)],
8423                         [AC_CHECK_LIB(pcreposix,regcomp,[
8424                          CF_ADD_LIB(pcreposix)
8425                         ],[AC_MSG_ERROR(Cannot find PCRE2 POSIX library)])])
8426                 ;;
8427         esac
8428
8429         # either way, check for the library header files
8430         AC_CHECK_HEADERS(pcre2-posix.h pcreposix.h)
8431 fi
8432 ])dnl
8433 dnl ---------------------------------------------------------------------------
8434 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
8435 dnl -------------------------
8436 dnl Allow the choice of the pkg-config library directory to be overridden.
8437 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
8438
8439 case $PKG_CONFIG in
8440 (no|none|yes)
8441         AC_MSG_CHECKING(for pkg-config library directory)
8442         ;;
8443 (*)
8444         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
8445         ;;
8446 esac
8447
8448 PKG_CONFIG_LIBDIR=no
8449 AC_ARG_WITH(pkg-config-libdir,
8450         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
8451         [PKG_CONFIG_LIBDIR=$withval],
8452         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
8453
8454 case x$PKG_CONFIG_LIBDIR in
8455 (x/*)
8456         ;;
8457 (xyes)
8458         # Look for the library directory using the same prefix as the executable
8459         if test "x$PKG_CONFIG" = xnone
8460         then
8461                 cf_path=$prefix
8462         else
8463                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
8464         fi
8465
8466         # If you don't like using the default architecture, you have to specify the
8467         # intended library directory and corresponding compiler/linker options.
8468         #
8469         # This case allows for Debian's 2014-flavor of multiarch, along with the
8470         # most common variations before that point.  Some other variants spell the
8471         # directory differently, e.g., "pkg-config", and put it in unusual places.
8472         # pkg-config has always been poorly standardized, which is ironic...
8473         case x`(arch) 2>/dev/null` in
8474         (*64)
8475                 cf_search_path="\
8476                         $cf_path/lib/*64-linux-gnu \
8477                         $cf_path/share \
8478                         $cf_path/lib64 \
8479                         $cf_path/lib32 \
8480                         $cf_path/lib"
8481                 ;;
8482         (*)
8483                 cf_search_path="\
8484                         $cf_path/lib/*-linux-gnu \
8485                         $cf_path/share \
8486                         $cf_path/lib32 \
8487                         $cf_path/lib \
8488                         $cf_path/libdata"
8489                 ;;
8490         esac
8491
8492         CF_VERBOSE(list...)
8493         for cf_config in $cf_search_path
8494         do
8495                 CF_VERBOSE(checking $cf_config/pkgconfig)
8496                 if test -d $cf_config/pkgconfig
8497                 then
8498                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
8499                         AC_MSG_CHECKING(done)
8500                         break
8501                 fi
8502         done
8503         ;;
8504 (*)
8505         ;;
8506 esac
8507
8508 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
8509         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
8510 fi
8511
8512 AC_SUBST(PKG_CONFIG_LIBDIR)
8513 ])dnl
8514 dnl ---------------------------------------------------------------------------
8515 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
8516 dnl ---------------
8517 dnl Check for POSIX thread library.
8518 AC_DEFUN([CF_WITH_PTHREAD],
8519 [
8520 AC_MSG_CHECKING(if you want to link with the pthread library)
8521 AC_ARG_WITH(pthread,
8522         [  --with-pthread          use POSIX thread library],
8523         [with_pthread=$withval],
8524         [with_pthread=no])
8525 AC_MSG_RESULT($with_pthread)
8526
8527 if test "$with_pthread" != no ; then
8528         AC_CHECK_HEADER(pthread.h,[
8529         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
8530
8531         for cf_lib_pthread in pthread c_r
8532         do
8533             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
8534             cf_save_LIBS="$LIBS"
8535             CF_ADD_LIB($cf_lib_pthread)
8536             AC_TRY_LINK([
8537 #include <pthread.h>
8538 ],[
8539                 int rc = pthread_create(0,0,0,0);
8540                 int r2 = pthread_mutexattr_settype(0, 0);
8541 ],[with_pthread=yes],[with_pthread=no])
8542             LIBS="$cf_save_LIBS"
8543             AC_MSG_RESULT($with_pthread)
8544             test "$with_pthread" = yes && break
8545         done
8546
8547         if test "$with_pthread" = yes ; then
8548             CF_ADD_LIB($cf_lib_pthread)
8549             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
8550         else
8551             AC_MSG_ERROR(Cannot link with pthread library)
8552         fi
8553         ])
8554 fi
8555 ])
8556 dnl ---------------------------------------------------------------------------
8557 dnl CF_WITH_REL_VERSION version: 1 updated: 2003/09/20 18:12:49
8558 dnl -------------------
8559 dnl Allow library's release-version to be overridden.  Generally this happens when a
8560 dnl packager has incremented the release-version past that used in the original package,
8561 dnl and wishes to keep doing this.
8562 dnl
8563 dnl $1 is the package name, if any, to derive corresponding {package}_MAJOR
8564 dnl and {package}_MINOR symbols
8565 dnl symbol.
8566 AC_DEFUN([CF_WITH_REL_VERSION],[
8567 test -z "$cf_cv_rel_version" && cf_cv_rel_version=0.0
8568 AC_ARG_WITH(rel-version,
8569 [  --with-rel-version=XXX  override derived release version],
8570 [AC_MSG_WARN(overriding release version $cf_cv_rel_version to $withval)
8571  cf_cv_rel_version=$withval])
8572 ifelse($1,,[
8573  CF_NUMBER_SYNTAX($cf_cv_rel_version,Release version)
8574 ],[
8575  $1_MAJOR=`echo "$cf_cv_rel_version" | sed -e 's/\..*//'`
8576  $1_MINOR=`echo "$cf_cv_rel_version" | sed -e 's/^[[^.]]*//' -e 's/^\.//' -e 's/\..*//'`
8577  CF_NUMBER_SYNTAX([$]$1_MAJOR,Release major-version)
8578  CF_NUMBER_SYNTAX([$]$1_MINOR,Release minor-version)
8579 ])
8580 ])dnl
8581 dnl ---------------------------------------------------------------------------
8582 dnl CF_WITH_SYSMOUSE version: 3 updated: 2012/10/06 17:56:13
8583 dnl ----------------
8584 dnl If we can compile with sysmouse, make it available unless it is not wanted.
8585 AC_DEFUN([CF_WITH_SYSMOUSE],[
8586 # not everyone has "test -c"
8587 if test -c /dev/sysmouse 2>/dev/null ; then
8588 AC_MSG_CHECKING(if you want to use sysmouse)
8589 AC_ARG_WITH(sysmouse,
8590         [  --with-sysmouse         use sysmouse (FreeBSD console)],
8591         [cf_with_sysmouse=$withval],
8592         [cf_with_sysmouse=maybe])
8593         if test "$cf_with_sysmouse" != no ; then
8594         AC_TRY_COMPILE([
8595 #include <osreldate.h>
8596 #if (__FreeBSD_version >= 400017)
8597 #include <sys/consio.h>
8598 #include <sys/fbio.h>
8599 #else
8600 #include <machine/console.h>
8601 #endif
8602 ],[
8603         struct mouse_info the_mouse;
8604         ioctl(0, CONS_MOUSECTL, &the_mouse);
8605 ],[cf_with_sysmouse=yes],[cf_with_sysmouse=no])
8606         fi
8607 AC_MSG_RESULT($cf_with_sysmouse)
8608 test "$cf_with_sysmouse" = yes && AC_DEFINE(USE_SYSMOUSE,1,[Define to 1 if we can/should use the sysmouse interface])
8609 fi
8610 ])dnl
8611 dnl ---------------------------------------------------------------------------
8612 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
8613 dnl ---------------
8614 dnl For testing, override the derived host system-type which is used to decide
8615 dnl things such as the linker commands used to build shared libraries.  This is
8616 dnl normally chosen automatically based on the type of system which you are
8617 dnl building on.  We use it for testing the configure script.
8618 dnl
8619 dnl This is different from the --host option: it is used only for testing parts
8620 dnl of the configure script which would not be reachable with --host since that
8621 dnl relies on the build environment being real, rather than mocked up.
8622 AC_DEFUN([CF_WITH_SYSTYPE],[
8623 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
8624 AC_ARG_WITH(system-type,
8625         [  --with-system-type=XXX  test: override derived host system-type],
8626 [AC_MSG_WARN(overriding system type to $withval)
8627         cf_cv_system_name=$withval
8628         host_os=$withval
8629 ])
8630 ])dnl
8631 dnl ---------------------------------------------------------------------------
8632 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
8633 dnl ----------------
8634 AC_DEFUN([CF_WITH_VALGRIND],[
8635 CF_NO_LEAKS_OPTION(valgrind,
8636         [  --with-valgrind         test: use valgrind],
8637         [USE_VALGRIND])
8638 ])dnl
8639 dnl ---------------------------------------------------------------------------
8640 dnl CF_WITH_VERSIONED_SYMS version: 8 updated: 2018/10/20 20:24:34
8641 dnl ----------------------
8642 dnl Use this when building shared library with ELF, to markup symbols with the
8643 dnl version identifier from the given input file.  Generally that identifier is
8644 dnl the same as the SONAME at which the symbol was first introduced.
8645 dnl
8646 dnl $1 = basename of the ".map" file (default $PACKAGE)
8647 AC_DEFUN([CF_WITH_VERSIONED_SYMS],
8648 [
8649 AC_MSG_CHECKING(if versioned-symbols file should be used)
8650 AC_ARG_WITH(versioned-syms,
8651         [  --with-versioned-syms=X markup versioned symbols using ld],
8652         [with_versioned_syms=$withval],
8653         [with_versioned_syms=no])
8654 case "x$with_versioned_syms" in
8655 (xyes)
8656         with_versioned_syms='${top_srcdir}/package/ifelse($1,,${PACKAGE},[$1]).map'
8657         AC_SUBST(PACKAGE)
8658         ;;
8659 (xno)
8660         ;;
8661 (x/*)
8662         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
8663         ;;
8664 (*)
8665         test -f "$with_versioned_syms" || AC_MSG_ERROR(expected a filename: $with_versioned_syms)
8666         with_versioned_syms=`pwd`/"$with_versioned_syms"
8667         ;;
8668 esac
8669 AC_MSG_RESULT($with_versioned_syms)
8670
8671 RESULTING_SYMS=
8672 VERSIONED_SYMS=
8673 WILDCARD_SYMS=
8674
8675 if test "x$with_versioned_syms" != xno
8676 then
8677         RESULTING_SYMS=$with_versioned_syms
8678         case "x$MK_SHARED_LIB" in
8679         (*-Wl,*)
8680                 VERSIONED_SYMS="-Wl,--version-script,\${RESULTING_SYMS}"
8681                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-Wl,%\\[$]{VERSIONED_SYMS} -Wl,%"`
8682                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
8683                 ;;
8684         (*-dy\ *)
8685                 VERSIONED_SYMS="-Wl,-M,\${RESULTING_SYMS}"
8686                 MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-dy%\\[$]{VERSIONED_SYMS} -dy%"`
8687                 CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
8688                 ;;
8689         (*)
8690                 AC_MSG_WARN(this system does not support versioned-symbols)
8691                 ;;
8692         esac
8693
8694         # Linux ld can selectively override scope, e.g., of symbols beginning with
8695         # "_" by first declaring some as global, and then using a wildcard to
8696         # declare the others as local.  Some other loaders cannot do this.  Check
8697         # by constructing a (very) simple shared library and inspecting its
8698         # symbols.
8699         if test "x$VERSIONED_SYMS" != "x"
8700         then
8701                 AC_MSG_CHECKING(if wildcards can be used to selectively omit symbols)
8702                 WILDCARD_SYMS=no
8703
8704                 # make sources
8705                 rm -f conftest.*
8706
8707                 cat >conftest.ver <<EOF
8708 module_1.0 {
8709 global:
8710         globalf1;
8711 local:
8712         localf1;
8713 };
8714 module_2.0 {
8715 global:
8716         globalf2;
8717 local:
8718         localf2;
8719         _*;
8720 } module_1.0;
8721 submodule_1.0 {
8722 global:
8723         subglobalf1;
8724         _ismissing;
8725 local:
8726         sublocalf1;
8727 };
8728 submodule_2.0 {
8729 global:
8730         subglobalf2;
8731 local:
8732         sublocalf2;
8733         _*;
8734 } submodule_1.0;
8735 EOF
8736                 cat >conftest.$ac_ext <<EOF
8737 #line __oline__ "configure"
8738 int     _ismissing(void) { return 1; }
8739 int     _localf1(void) { return 1; }
8740 int     _localf2(void) { return 2; }
8741 int     globalf1(void) { return 1; }
8742 int     globalf2(void) { return 2; }
8743 int     _sublocalf1(void) { return 1; }
8744 int     _sublocalf2(void) { return 2; }
8745 int     subglobalf1(void) { return 1; }
8746 int     subglobalf2(void) { return 2; }
8747 EOF
8748                 cat >conftest.mk <<EOF
8749 CC=${CC}
8750 CFLAGS=${CFLAGS}
8751 CPPFLAGS=${CPPFLAGS}
8752 LDFLAGS=${LDFLAGS}
8753 LIBS=${LIBS}
8754 VERSIONED_SYMS=${VERSIONED_SYMS}
8755 RESULTING_SYMS=conftest.ver
8756 MK_SHARED_LIB=${MK_SHARED_LIB}
8757 conftest.so: conftest.$ac_cv_objext
8758                 \$(MK_SHARED_LIB) conftest.$ac_cv_objext
8759 EOF
8760
8761                 # compile source, make library
8762                 if make -f conftest.mk 2>&AC_FD_CC >/dev/null
8763                 then
8764                         # test for missing symbol in either Data or Text section
8765                         cf_missing=`nm -P conftest.so 2>&AC_FD_CC |fgrep _ismissing | egrep '[[         ]][[DT]][[      ]]'`
8766                         test -n "$cf_missing" && WILDCARD_SYMS=yes
8767                 fi
8768                 AC_MSG_RESULT($WILDCARD_SYMS)
8769                 rm -f conftest.*
8770         fi
8771 fi
8772 AC_SUBST(RESULTING_SYMS)
8773 AC_SUBST(VERSIONED_SYMS)
8774 AC_SUBST(WILDCARD_SYMS)
8775 ])dnl
8776 dnl ---------------------------------------------------------------------------
8777 dnl CF_WITH_X11_RGB version: 1 updated: 2017/11/25 17:32:16
8778 dnl ---------------
8779 dnl Handle configure option "--with-x11-rgb", setting these shell
8780 dnl variables:
8781 dnl
8782 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
8783 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
8784 dnl
8785 dnl Most Linux's use this:
8786 dnl     /usr/share/X11/rgb.txt
8787 dnl Debian uses this:
8788 dnl     /etc/X11/rgb.txt
8789 dnl DragonFlyBSD ports uses this:
8790 dnl     /usr/pkg/lib/X11/rgb.txt
8791 dnl FreeBSD ports use these:
8792 dnl     /usr/local/lib/X11/rgb.txt
8793 dnl     /usr/local/share/X11/rgb.txt
8794 dnl Mandriva has these:
8795 dnl     /usr/lib/X11/rgb.txt
8796 dnl     /usr/lib64/X11/rgb.txt
8797 dnl NetBSD has these
8798 dnl     /usr/X11R7/lib/X11/rgb.txt
8799 dnl OpenSolaris uses
8800 dnl     32-bit:
8801 dnl     /usr/X11/etc/X11/rgb.txt
8802 dnl     /usr/X11/share/X11/rgb.txt
8803 dnl     /usr/X11/lib/X11/rgb.txt
8804 dnl OSX uses
8805 dnl             /opt/local/share/X11/rgb.txt (MacPorts)
8806 dnl             /opt/X11/share/X11/rgb.txt (non-ports)
8807 dnl     64-bit:
8808 dnl     /usr/X11/etc/X11/rgb.txt
8809 dnl     /usr/X11/share/X11/rgb.txt (perhaps)
8810 dnl     /usr/X11/lib/amd64/X11/rgb.txt
8811 dnl Solaris10 uses (in this order):
8812 dnl     /usr/openwin/lib/X11/rgb.txt
8813 dnl     /usr/X11/lib/X11/rgb.txt
8814 AC_DEFUN([CF_WITH_X11_RGB],[
8815 AC_MSG_CHECKING(for X11 rgb file)
8816 AC_ARG_WITH(x11-rgb,
8817         [  --with-x11-rgb=FILE   file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
8818         [RGB_PATH=$withval],
8819         [RGB_PATH=auto])
8820
8821 if test "x[$]RGB_PATH" = xauto
8822 then
8823         RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
8824         for cf_path in \
8825                 /opt/local/share/X11/rgb.txt \
8826                 /opt/X11/share/X11/rgb.txt \
8827                 /usr/share/X11/rgb.txt \
8828                 /usr/X11/share/X11/rgb.txt \
8829                 /usr/X11/lib/X11/rgb.txt \
8830                 /usr/lib/X11/rgb.txt \
8831                 /etc/X11/rgb.txt \
8832                 /usr/pkg/lib/X11/rgb.txt \
8833                 /usr/X11R7/lib/X11/rgb.txt \
8834                 /usr/X11R6/lib/X11/rgb.txt \
8835                 /usr/X11R5/lib/X11/rgb.txt \
8836                 /usr/X11R4/lib/X11/rgb.txt \
8837                 /usr/local/lib/X11/rgb.txt \
8838                 /usr/local/share/X11/rgb.txt \
8839                 /usr/lib64/X11/rgb.txt
8840         do
8841                 if test -f "$cf_path" ; then
8842                         RGB_PATH="$cf_path"
8843                         break
8844                 fi
8845         done
8846 else
8847         cf_path=$RGB_PATH
8848         CF_PATH_SYNTAX(cf_path)
8849 fi
8850
8851 AC_MSG_RESULT($RGB_PATH)
8852 AC_SUBST(RGB_PATH)
8853 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path")
8854
8855 no_x11_rgb=
8856 if test "$RGB_PATH" = no
8857 then
8858         no_x11_rgb="#"
8859 fi
8860 AC_SUBST(no_x11_rgb)
8861 ])dnl
8862 dnl ---------------------------------------------------------------------------
8863 dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
8864 dnl ---------------
8865 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
8866 dnl or adapt to the vendor's definitions to get equivalent functionality,
8867 dnl without losing the common non-POSIX features.
8868 dnl
8869 dnl Parameters:
8870 dnl     $1 is the nominal value for _XOPEN_SOURCE
8871 dnl     $2 is the nominal value for _POSIX_C_SOURCE
8872 AC_DEFUN([CF_XOPEN_SOURCE],[
8873 AC_REQUIRE([AC_CANONICAL_HOST])
8874 AC_REQUIRE([CF_POSIX_VISIBLE])
8875
8876 if test "$cf_cv_posix_visible" = no; then
8877
8878 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
8879 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
8880 cf_xopen_source=
8881
8882 case $host_os in
8883 (aix[[4-7]]*)
8884         cf_xopen_source="-D_ALL_SOURCE"
8885         ;;
8886 (msys)
8887         cf_XOPEN_SOURCE=600
8888         ;;
8889 (darwin[[0-8]].*)
8890         cf_xopen_source="-D_APPLE_C_SOURCE"
8891         ;;
8892 (darwin*)
8893         cf_xopen_source="-D_DARWIN_C_SOURCE"
8894         cf_XOPEN_SOURCE=
8895         ;;
8896 (freebsd*|dragonfly*|midnightbsd*)
8897         # 5.x headers associate
8898         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
8899         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
8900         cf_POSIX_C_SOURCE=200112L
8901         cf_XOPEN_SOURCE=600
8902         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
8903         ;;
8904 (hpux11*)
8905         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
8906         ;;
8907 (hpux*)
8908         cf_xopen_source="-D_HPUX_SOURCE"
8909         ;;
8910 (irix[[56]].*)
8911         cf_xopen_source="-D_SGI_SOURCE"
8912         cf_XOPEN_SOURCE=
8913         ;;
8914 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
8915         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
8916         ;;
8917 (minix*)
8918         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
8919         ;;
8920 (mirbsd*)
8921         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
8922         cf_XOPEN_SOURCE=
8923         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
8924         ;;
8925 (netbsd*)
8926         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
8927         ;;
8928 (openbsd[[4-9]]*)
8929         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
8930         cf_xopen_source="-D_BSD_SOURCE"
8931         cf_XOPEN_SOURCE=600
8932         ;;
8933 (openbsd*)
8934         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
8935         ;;
8936 (osf[[45]]*)
8937         cf_xopen_source="-D_OSF_SOURCE"
8938         ;;
8939 (nto-qnx*)
8940         cf_xopen_source="-D_QNX_SOURCE"
8941         ;;
8942 (sco*)
8943         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
8944         ;;
8945 (solaris2.*)
8946         cf_xopen_source="-D__EXTENSIONS__"
8947         cf_cv_xopen_source=broken
8948         ;;
8949 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
8950         cf_XOPEN_SOURCE=
8951         cf_POSIX_C_SOURCE=
8952         ;;
8953 (*)
8954         CF_TRY_XOPEN_SOURCE
8955         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
8956         ;;
8957 esac
8958
8959 if test -n "$cf_xopen_source" ; then
8960         CF_ADD_CFLAGS($cf_xopen_source,true)
8961 fi
8962
8963 dnl In anything but the default case, we may have system-specific setting
8964 dnl which is still not guaranteed to provide all of the entrypoints that
8965 dnl _XOPEN_SOURCE would yield.
8966 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
8967         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
8968         AC_TRY_COMPILE([#include <stdlib.h>],[
8969 #ifndef _XOPEN_SOURCE
8970 make an error
8971 #endif],
8972         [cf_XOPEN_SOURCE_set=yes],
8973         [cf_XOPEN_SOURCE_set=no])
8974         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
8975         if test $cf_XOPEN_SOURCE_set = yes
8976         then
8977                 AC_TRY_COMPILE([#include <stdlib.h>],[
8978 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
8979 make an error
8980 #endif],
8981                 [cf_XOPEN_SOURCE_set_ok=yes],
8982                 [cf_XOPEN_SOURCE_set_ok=no])
8983                 if test $cf_XOPEN_SOURCE_set_ok = no
8984                 then
8985                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
8986                 fi
8987         else
8988                 CF_TRY_XOPEN_SOURCE
8989         fi
8990 fi
8991 fi # cf_cv_posix_visible
8992 ])