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     &n