aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2020,2021 Thomas E. Dickey                                *
   3 dnl Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
   4 dnl                                                                          *
   5 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
   6 dnl copy of this software and associated documentation files (the            *
   7 dnl "Software"), to deal in the Software without restriction, including      *
   8 dnl without limitation the rights to use, copy, modify, merge, publish,      *
   9 dnl distribute, distribute with modifications, sublicense, and/or sell       *
  10 dnl copies of the Software, and to permit persons to whom the Software is    *
  11 dnl furnished to do so, subject to the following conditions:                 *
  12 dnl                                                                          *
  13 dnl The above copyright notice and this permission notice shall be included  *
  14 dnl in all copies or substantial portions of the Software.                   *
  15 dnl                                                                          *
  16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  23 dnl                                                                          *
  24 dnl Except as contained in this notice, the name(s) of the above copyright   *
  25 dnl holders shall not be used in advertising or otherwise to promote the     *
  26 dnl sale, use or other dealings in this Software without prior written       *
  27 dnl authorization.                                                           *
  28 dnl***************************************************************************
  29 dnl
  30 dnl Author: Thomas E. Dickey 1995-on
  31 dnl
  32 dnl $Id: aclocal.m4,v 1.950 2021/01/26 23:45:12 tom Exp $
  33 dnl Macros used in NCURSES auto-configuration script.
  34 dnl
  35 dnl These macros are maintained separately from NCURSES.  The copyright on
  36 dnl this file applies to the aggregation of macros and does not affect use of
  37 dnl these macros in other applications.
  38 dnl
  39 dnl See these pages for additional information:
  40 dnl             https://invisible-island.net/autoconf/
  41 dnl             https://invisible-island.net/autoconf/my-autoconf.html
  42 dnl
  43 dnl ---------------------------------------------------------------------------
  44 dnl ---------------------------------------------------------------------------
  45 dnl AM_LANGINFO_CODESET version: 6 updated: 2021/01/01 16:53:59
  46 dnl -------------------
  47 dnl Inserted as requested by gettext 0.10.40
  48 dnl File from /usr/share/aclocal
  49 dnl codeset.m4
  50 dnl ====================
  51 dnl serial AM1
  52 dnl
  53 dnl From Bruno Haible.
  54 AC_DEFUN([AM_LANGINFO_CODESET],
  55 [
  56 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
  57         [AC_TRY_LINK([#include <langinfo.h>],
  58         [char* cs = nl_langinfo(CODESET); (void)cs],
  59         am_cv_langinfo_codeset=yes,
  60         am_cv_langinfo_codeset=no)
  61         ])
  62         if test "$am_cv_langinfo_codeset" = yes; then
  63                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
  64                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  65         fi
  66 ])dnl
  67 dnl ---------------------------------------------------------------------------
  68 dnl CF_ABI_DEFAULTS version: 2 updated: 2015/06/06 13:49:58
  69 dnl ---------------
  70 dnl Provide configure-script defaults for different ncurses ABIs.
  71 AC_DEFUN([CF_ABI_DEFAULTS],[
  72 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
  73 case x$cf_cv_abi_version in
  74 (x[[6789]])
  75         cf_dft_ext_colors=yes
  76         cf_dft_ext_const=yes
  77         cf_dft_ext_mouse=yes
  78         cf_dft_ext_putwin=yes
  79         cf_dft_ext_spfuncs=yes
  80         cf_dft_filter_syms=yes
  81         cf_dft_chtype=uint32_t
  82         cf_dft_mmask_t=uint32_t
  83         cf_dft_interop=yes
  84         cf_dft_tparm_arg=intptr_t
  85         cf_dft_with_lp64=yes
  86         ;;
  87 (*)
  88         cf_dft_ext_colors=no
  89         cf_dft_ext_const=no
  90         cf_dft_ext_mouse=no
  91         cf_dft_ext_putwin=no
  92         cf_dft_ext_spfuncs=no
  93         cf_dft_filter_syms=no
  94         cf_dft_chtype=auto
  95         cf_dft_mmask_t=auto
  96         cf_dft_interop=no
  97         cf_dft_tparm_arg=long
  98         cf_dft_with_lp64=no
  99         ;;
 100 esac
 101 ])dnl
 102 dnl ---------------------------------------------------------------------------
 103 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
 104 dnl ------------------
 105 dnl Conditionally generate script according to whether we're using a given autoconf.
 106 dnl
 107 dnl $1 = version to compare against
 108 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
 109 dnl $3 = code to use if AC_ACVERSION is older than $1.
 110 define([CF_ACVERSION_CHECK],
 111 [
 112 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
 113 ifdef([m4_version_compare],
 114 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
 115 [CF_ACVERSION_COMPARE(
 116 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
 117 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
 118 dnl ---------------------------------------------------------------------------
 119 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
 120 dnl --------------------
 121 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
 122 dnl                      MAJOR2, MINOR2, TERNARY2,
 123 dnl                      PRINTABLE2, not FOUND, FOUND)
 124 define([CF_ACVERSION_COMPARE],
 125 [ifelse(builtin([eval], [$2 < $5]), 1,
 126 [ifelse([$8], , ,[$8])],
 127 [ifelse([$9], , ,[$9])])])dnl
 128 dnl ---------------------------------------------------------------------------
 129 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
 130 dnl -------------------
 131 dnl Construct the list of include-options for the C programs in the Ada95
 132 dnl binding.
 133 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
 134 [
 135 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
 136 if test "$srcdir" != "."; then
 137         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
 138 fi
 139 if test "$GCC" != yes; then
 140         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 141 elif test "$includedir" != "/usr/include"; then
 142         if test "$includedir" = '${prefix}/include' ; then
 143                 if test x$prefix != x/usr ; then
 144                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 145                 fi
 146         else
 147                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
 148         fi
 149 fi
 150 AC_SUBST(ACPPFLAGS)
 151 ])dnl
 152 dnl ---------------------------------------------------------------------------
 153 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
 154 dnl ---------------
 155 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
 156 AC_DEFUN([CF_ADD_ADAFLAGS],[
 157         ADAFLAGS="$ADAFLAGS $1"
 158         AC_SUBST(ADAFLAGS)
 159 ])dnl
 160 dnl ---------------------------------------------------------------------------
 161 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
 162 dnl -------------
 163 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 164 dnl $1 = flags to add
 165 dnl $2 = if given makes this macro verbose.
 166 dnl
 167 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 168 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 169 dnl confused by the quotes (which require backslashes to keep them usable).
 170 AC_DEFUN([CF_ADD_CFLAGS],
 171 [
 172 cf_fix_cppflags=no
 173 cf_new_cflags=
 174 cf_new_cppflags=
 175 cf_new_extra_cppflags=
 176
 177 for cf_add_cflags in $1
 178 do
 179 case "$cf_fix_cppflags" in
 180 (no)
 181         case "$cf_add_cflags" in
 182         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 183                 case "$cf_add_cflags" in
 184                 (-D*)
 185                         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 186
 187                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 188                                 && test -z "${cf_tst_cflags}" \
 189                                 && cf_fix_cppflags=yes
 190
 191                         if test "$cf_fix_cppflags" = yes ; then
 192                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 193                                 continue
 194                         elif test "${cf_tst_cflags}" = "\"'" ; then
 195                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 196                                 continue
 197                         fi
 198                         ;;
 199                 esac
 200                 case "$CPPFLAGS" in
 201                 (*$cf_add_cflags)
 202                         ;;
 203                 (*)
 204                         case "$cf_add_cflags" in
 205                         (-D*)
 206                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 207                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 208                                 ;;
 209                         esac
 210                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 211                         ;;
 212                 esac
 213                 ;;
 214         (*)
 215                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 216                 ;;
 217         esac
 218         ;;
 219 (yes)
 220         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 221
 222         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
 223
 224         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 225                 && test -z "${cf_tst_cflags}" \
 226                 && cf_fix_cppflags=no
 227         ;;
 228 esac
 229 done
 230
 231 if test -n "$cf_new_cflags" ; then
 232         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 233         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 234 fi
 235
 236 if test -n "$cf_new_cppflags" ; then
 237         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 238         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 239 fi
 240
 241 if test -n "$cf_new_extra_cppflags" ; then
 242         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 243         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 244 fi
 245
 246 AC_SUBST(EXTRA_CPPFLAGS)
 247
 248 ])dnl
 249 dnl ---------------------------------------------------------------------------
 250 dnl CF_ADD_CXXFLAGS version: 1 updated: 2020/04/04 16:16:13
 251 dnl ---------------
 252 dnl Copy non-preprocessor flags to $CXXFLAGS, preprocessor flags to $CPPFLAGS
 253 dnl The second parameter if given makes this macro verbose.
 254 dnl
 255 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 256 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 257 dnl confused by the quotes (which require backslashes to keep them usable).
 258 AC_DEFUN([CF_ADD_CXXFLAGS],
 259 [
 260 cf_save_CXXFLAGS="$CFLAGS"
 261 CFLAGS="$CXXFLAGS"
 262 CF_ADD_CFLAGS($1 ifelse($2,,,[,$2]))
 263 CXXFLAGS="$CFLAGS"
 264 CFLAGS="$cf_save_CXXFLAGS"
 265 ])dnl
 266 dnl ---------------------------------------------------------------------------
 267 dnl CF_ADD_INCDIR version: 16 updated: 2020/12/31 20:19:42
 268 dnl -------------
 269 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 270 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 271 dnl but old versions (and some misinstalled ones) need that.  To make things
 272 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 273 dnl the include-path).
 274 AC_DEFUN([CF_ADD_INCDIR],
 275 [
 276 if test -n "$1" ; then
 277   for cf_add_incdir in $1
 278   do
 279         while test "$cf_add_incdir" != /usr/include
 280         do
 281           if test -d "$cf_add_incdir"
 282           then
 283                 cf_have_incdir=no
 284                 if test -n "$CFLAGS$CPPFLAGS" ; then
 285                   # a loop is needed to ensure we can add subdirs of existing dirs
 286                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 287                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 288                           cf_have_incdir=yes; break
 289                         fi
 290                   done
 291                 fi
 292
 293                 if test "$cf_have_incdir" = no ; then
 294                   if test "$cf_add_incdir" = /usr/local/include ; then
 295                         if test "$GCC" = yes
 296                         then
 297                           cf_save_CPPFLAGS=$CPPFLAGS
 298                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 299                           AC_TRY_COMPILE([#include <stdio.h>],
 300                                   [printf("Hello")],
 301                                   [],
 302                                   [cf_have_incdir=yes])
 303                           CPPFLAGS=$cf_save_CPPFLAGS
 304                         fi
 305                   fi
 306                 fi
 307
 308                 if test "$cf_have_incdir" = no ; then
 309                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 310                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 311
 312                   cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
 313                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 314                   cf_add_incdir="$cf_top_incdir"
 315                 else
 316                   break
 317                 fi
 318           else
 319                 break
 320           fi
 321         done
 322   done
 323 fi
 324 ])dnl
 325 dnl ---------------------------------------------------------------------------
 326 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 327 dnl ----------
 328 dnl Add a library, used to enforce consistency.
 329 dnl
 330 dnl $1 = library to add, without the "-l"
 331 dnl $2 = variable to update (default $LIBS)
 332 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 333 dnl ---------------------------------------------------------------------------
 334 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
 335 dnl -------------
 336 dnl     Adds to the library-path
 337 dnl
 338 dnl     Some machines have trouble with multiple -L options.
 339 dnl
 340 dnl $1 is the (list of) directory(s) to add
 341 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 342 dnl
 343 AC_DEFUN([CF_ADD_LIBDIR],
 344 [
 345 if test -n "$1" ; then
 346         for cf_add_libdir in $1
 347         do
 348                 if test "$cf_add_libdir" = /usr/lib ; then
 349                         :
 350                 elif test -d "$cf_add_libdir"
 351                 then
 352                         cf_have_libdir=no
 353                         if test -n "$LDFLAGS$LIBS" ; then
 354                                 # a loop is needed to ensure we can add subdirs of existing dirs
 355                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 356                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 357                                                 cf_have_libdir=yes; break
 358                                         fi
 359                                 done
 360                         fi
 361                         if test "$cf_have_libdir" = no ; then
 362                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 363                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 364                         fi
 365                 fi
 366         done
 367 fi
 368 ])dnl
 369 dnl ---------------------------------------------------------------------------
 370 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 371 dnl -----------
 372 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 373 dnl prepended to an existing list, since their dependencies are assumed to
 374 dnl already exist in the list.
 375 dnl
 376 dnl $1 = libraries to add, with the "-l", etc.
 377 dnl $2 = variable to update (default $LIBS)
 378 AC_DEFUN([CF_ADD_LIBS],[
 379 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 380 # reverse order
 381 cf_add_0lib=
 382 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 383 # filter duplicates
 384 for cf_add_1lib in $cf_add_0lib; do
 385         for cf_add_2lib in $cf_add_libs; do
 386                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 387                         cf_add_1lib=
 388                         break
 389                 fi
 390         done
 391         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 392 done
 393 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 394 ])dnl
 395 dnl ---------------------------------------------------------------------------
 396 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
 397 dnl ------------------
 398 dnl Append to a search-list for a nonstandard header/lib-file
 399 dnl     $1 = the variable to return as result
 400 dnl     $2 = the package name
 401 dnl     $3 = the subdirectory, e.g., bin, include or lib
 402 dnl $4 = the directory under which we will test for subdirectories
 403 dnl $5 = a directory that we do not want $4 to match
 404 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 405 [
 406 test "x$4" != "x$5" && \
 407 test -d "$4" && \
 408 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
 409         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 410         test -d "$4/$3" &&          $1="[$]$1 $4/$3"
 411         test -d "$4/$3/$2" &&       $1="[$]$1 $4/$3/$2"
 412         test -d "$4/$3/$2/$3" &&    $1="[$]$1 $4/$3/$2/$3"
 413         test -d "$4/$2/$3" &&       $1="[$]$1 $4/$2/$3"
 414         test -d "$4/$2/$3/$2" &&    $1="[$]$1 $4/$2/$3/$2"
 415 }
 416 ])dnl
 417 dnl ---------------------------------------------------------------------------
 418 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 419 dnl --------------
 420 dnl use this macro for appending text without introducing an extra blank at
 421 dnl the beginning
 422 define([CF_APPEND_TEXT],
 423 [
 424         test -n "[$]$1" && $1="[$]$1 "
 425         $1="[$]{$1}$2"
 426 ])dnl
 427 dnl ---------------------------------------------------------------------------
 428 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 429 dnl --------------
 430 dnl Allow user to disable a normally-on option.
 431 AC_DEFUN([CF_ARG_DISABLE],
 432 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 433 dnl ---------------------------------------------------------------------------
 434 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 435 dnl -------------
 436 dnl Allow user to enable a normally-off option.
 437 AC_DEFUN([CF_ARG_ENABLE],
 438 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 439 dnl ---------------------------------------------------------------------------
 440 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 441 dnl -------------
 442 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 443 dnl values.
 444 dnl
 445 dnl Parameters:
 446 dnl $1 = option name
 447 dnl $2 = help-string
 448 dnl $3 = action to perform if option is not default
 449 dnl $4 = action if perform if option is default
 450 dnl $5 = default option value (either 'yes' or 'no')
 451 AC_DEFUN([CF_ARG_OPTION],
 452 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 453         if test "$enableval" != "$5" ; then
 454 ifelse([$3],,[    :]dnl
 455 ,[    $3]) ifelse([$4],,,[
 456         else
 457                 $4])
 458         fi],[enableval=$5 ifelse([$4],,,[
 459         $4
 460 ])dnl
 461 ])])dnl
 462 dnl ---------------------------------------------------------------------------
 463 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
 464 dnl -----------
 465 dnl Check for suitable "ar" (archiver) options for updating an archive.
 466 dnl
 467 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 468 dnl as well as a workaround for breakage of make's archive rules by the GNU
 469 dnl binutils "ar" program.
 470 AC_DEFUN([CF_AR_FLAGS],[
 471 AC_REQUIRE([CF_PROG_AR])
 472
 473 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 474         case "$cf_cv_system_name" in
 475         (*-msvc*)
 476                 cf_cv_ar_flags=''
 477                 cat >mk_static_lib.sh <<-EOF
 478                 #!$SHELL
 479                 MSVC_BIN="[$]AR"
 480                 out="\[$]1"
 481                 shift
 482                 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
 483                 EOF
 484                 chmod +x mk_static_lib.sh
 485                 AR=`pwd`/mk_static_lib.sh
 486                 ;;
 487         (*)
 488                 cf_cv_ar_flags=unknown
 489                 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 490                 do
 491
 492                         # check if $ARFLAGS already contains this choice
 493                         if test "x$ARFLAGS" != "x" ; then
 494                                 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 495                                 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 496                                         cf_cv_ar_flags=
 497                                         break
 498                                 fi
 499                         fi
 500
 501                         rm -f "conftest.$ac_cv_objext"
 502                         rm -f conftest.a
 503
 504                         cat >"conftest.$ac_ext" <<EOF
 505 #line __oline__ "configure"
 506 int     testdata[[3]] = { 123, 456, 789 };
 507 EOF
 508                         if AC_TRY_EVAL(ac_compile) ; then
 509                                 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 510                                 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
 511                                 if test -f conftest.a ; then
 512                                         cf_cv_ar_flags="$cf_ar_flags"
 513                                         break
 514                                 fi
 515                         else
 516                                 CF_VERBOSE(cannot compile test-program)
 517                                 break
 518                         fi
 519                 done
 520                 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
 521                 ;;
 522         esac
 523 ])
 524
 525 if test -n "$ARFLAGS" ; then
 526         if test -n "$cf_cv_ar_flags" ; then
 527                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 528         fi
 529 else
 530         ARFLAGS=$cf_cv_ar_flags
 531 fi
 532
 533 AC_SUBST(ARFLAGS)
 534 ])
 535 dnl ---------------------------------------------------------------------------
 536 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
 537 dnl -----------------
 538 dnl Check if awk can handle big strings using printf.  Some older versions of
 539 dnl awk choke on large strings passed via "%s".
 540 dnl
 541 dnl $1 = desired string size
 542 dnl $2 = variable to set with result
 543 AC_DEFUN([CF_AWK_BIG_PRINTF],
 544 [
 545         case x$AWK in
 546         (x)
 547                 eval $2=no
 548                 ;;
 549         (*)
 550                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
 551                         | $AWK '{ printf "%d\n", length([$]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
 552                         eval $2=yes
 553                 else
 554                         eval $2=no
 555                 fi
 556                 ;;
 557         esac
 558 ])dnl
 559 dnl ---------------------------------------------------------------------------
 560 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
 561 dnl ------------
 562 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
 563 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
 564 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
 565 dnl
 566 dnl Treat the configuration-variable specially here, since we're directly
 567 dnl substituting its value (i.e., 1/0).
 568 dnl
 569 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
 570 AC_DEFUN([CF_BOOL_DECL],
 571 [
 572 AC_MSG_CHECKING(if we should include stdbool.h)
 573
 574 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
 575         AC_TRY_COMPILE([],[bool foo = false],
 576                 [cf_cv_header_stdbool_h=0],
 577                 [AC_TRY_COMPILE([
 578 #ifndef __BEOS__
 579 #include <stdbool.h>
 580 #endif
 581 ],[bool foo = false],
 582                         [cf_cv_header_stdbool_h=1],
 583                         [cf_cv_header_stdbool_h=0])])])
 584
 585 if test "$cf_cv_header_stdbool_h" = 1
 586 then    AC_MSG_RESULT(yes)
 587 else    AC_MSG_RESULT(no)
 588 fi
 589
 590 AC_MSG_CHECKING([for builtin bool type])
 591
 592 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
 593         AC_TRY_COMPILE([
 594 #include <stdio.h>
 595 #include <sys/types.h>
 596 ],[bool x = false],
 597                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
 598                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
 599         ])
 600
 601 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
 602 then    AC_MSG_RESULT(yes)
 603 else    AC_MSG_RESULT(no)
 604 fi
 605 ])dnl
 606 dnl ---------------------------------------------------------------------------
 607 dnl CF_BOOL_SIZE version: 17 updated: 2020/10/24 19:48:55
 608 dnl ------------
 609 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
 610 dnl Don't bother looking for bool.h, since it's been deprecated.
 611 dnl
 612 dnl If the current compiler is C rather than C++, we get the bool definition
 613 dnl from <stdbool.h>.
 614 AC_DEFUN([CF_BOOL_SIZE],
 615 [
 616 AC_CHECK_SIZEOF(bool,,[
 617 #include <stdlib.h>
 618 #include <stdio.h>
 619
 620 #if defined(__cplusplus)
 621
 622 #ifdef HAVE_GXX_BUILTIN_H
 623 #include <g++/builtin.h>
 624 #elif HAVE_GPP_BUILTIN_H
 625 #include <gpp/builtin.h>
 626 #elif HAVE_BUILTIN_H
 627 #include <builtin.h>
 628 #endif
 629
 630 #else
 631
 632 #if $cf_cv_header_stdbool_h
 633 #include <stdbool.h>
 634 #endif
 635
 636 #endif
 637 ])
 638
 639 AC_CACHE_CHECK(for type of bool, cf_cv_type_of_bool,[
 640         rm -f cf_test.out
 641         AC_TRY_RUN([
 642 #include <stdlib.h>
 643 #include <stdio.h>
 644
 645 #if defined(__cplusplus)
 646
 647 #ifdef HAVE_GXX_BUILTIN_H
 648 #include <g++/builtin.h>
 649 #elif HAVE_GPP_BUILTIN_H
 650 #include <gpp/builtin.h>
 651 #elif HAVE_BUILTIN_H
 652 #include <builtin.h>
 653 #endif
 654
 655 #else
 656
 657 #if $cf_cv_header_stdbool_h
 658 #include <stdbool.h>
 659 #endif
 660
 661 #endif
 662
 663 int main(void)
 664 {
 665         FILE *fp = fopen("cf_test.out", "w");
 666         if (fp != 0) {
 667                 bool x = true;
 668                 if ((bool)(-x) >= 0)
 669                         fputs("unsigned ", fp);
 670                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
 671                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
 672                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
 673                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
 674                 fclose(fp);
 675         }
 676         ${cf_cv_main_return:-return}(0);
 677 }
 678                 ],
 679                 [cf_cv_type_of_bool=`cat cf_test.out`
 680                  if test -z "$cf_cv_type_of_bool"; then
 681                    cf_cv_type_of_bool=unknown
 682                  fi],
 683                 [cf_cv_type_of_bool=unknown],
 684                 [
 685                 case x$ac_cv_sizeof_bool in
 686                 (x1) cf_cv_type_of_bool="unsigned char";;
 687                 (x2) cf_cv_type_of_bool="unsigned short";;
 688                 (x4) cf_cv_type_of_bool="unsigned int";;
 689                 (x8) cf_cv_type_of_bool="unsigned long";;
 690                 (*)  cf_cv_type_of_bool=unknown;;
 691                 esac
 692                 ])
 693         rm -f cf_test.out
 694 ])
 695
 696 if test "$cf_cv_type_of_bool" = unknown ; then
 697         case .$NCURSES_BOOL in
 698         (.auto|.) NCURSES_BOOL=unsigned;;
 699         esac
 700         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
 701         cf_cv_type_of_bool=$NCURSES_BOOL
 702 fi
 703 ])dnl
 704 dnl ---------------------------------------------------------------------------
 705 dnl CF_BUILD_CC version: 9 updated: 2021/01/02 09:31:20
 706 dnl -----------
 707 dnl If we're cross-compiling, allow the user to override the tools and their
 708 dnl options.  The configure script is oriented toward identifying the host
 709 dnl compiler, etc., but we need a build compiler to generate parts of the
 710 dnl source.
 711 dnl
 712 dnl $1 = default for $CPPFLAGS
 713 dnl $2 = default for $LIBS
 714 AC_DEFUN([CF_BUILD_CC],[
 715 CF_ACVERSION_CHECK(2.52,,
 716         [AC_REQUIRE([CF_PROG_EXT])])
 717 if test "$cross_compiling" = yes ; then
 718
 719         # defaults that we might want to override
 720         : ${BUILD_CFLAGS:=''}
 721         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 722         : ${BUILD_LDFLAGS:=''}
 723         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 724         : ${BUILD_EXEEXT:='$x'}
 725         : ${BUILD_OBJEXT:='o'}
 726
 727         AC_ARG_WITH(build-cc,
 728                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 729                 [BUILD_CC="$withval"],
 730                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 731         AC_MSG_CHECKING(for native build C compiler)
 732         AC_MSG_RESULT($BUILD_CC)
 733
 734         AC_MSG_CHECKING(for native build C preprocessor)
 735         AC_ARG_WITH(build-cpp,
 736                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 737                 [BUILD_CPP="$withval"],
 738                 [BUILD_CPP='${BUILD_CC} -E'])
 739         AC_MSG_RESULT($BUILD_CPP)
 740
 741         AC_MSG_CHECKING(for native build C flags)
 742         AC_ARG_WITH(build-cflags,
 743                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 744                 [BUILD_CFLAGS="$withval"])
 745         AC_MSG_RESULT($BUILD_CFLAGS)
 746
 747         AC_MSG_CHECKING(for native build C preprocessor-flags)
 748         AC_ARG_WITH(build-cppflags,
 749                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 750                 [BUILD_CPPFLAGS="$withval"])
 751         AC_MSG_RESULT($BUILD_CPPFLAGS)
 752
 753         AC_MSG_CHECKING(for native build linker-flags)
 754         AC_ARG_WITH(build-ldflags,
 755                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 756                 [BUILD_LDFLAGS="$withval"])
 757         AC_MSG_RESULT($BUILD_LDFLAGS)
 758
 759         AC_MSG_CHECKING(for native build linker-libraries)
 760         AC_ARG_WITH(build-libs,
 761                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 762                 [BUILD_LIBS="$withval"])
 763         AC_MSG_RESULT($BUILD_LIBS)
 764
 765         # this assumes we're on Unix.
 766         BUILD_EXEEXT=
 767         BUILD_OBJEXT=o
 768
 769         : ${BUILD_CC:='${CC}'}
 770
 771         if { test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}'; } ; then
 772                 AC_MSG_ERROR([Cross-build requires two compilers.
 773 Use --with-build-cc to specify the native compiler.])
 774         fi
 775
 776 else
 777         : ${BUILD_CC:='${CC}'}
 778         : ${BUILD_CPP:='${CPP}'}
 779         : ${BUILD_CFLAGS:='${CFLAGS}'}
 780         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 781         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 782         : ${BUILD_LIBS:='${LIBS}'}
 783         : ${BUILD_EXEEXT:='$x'}
 784         : ${BUILD_OBJEXT:='o'}
 785 fi
 786
 787 AC_SUBST(BUILD_CC)
 788 AC_SUBST(BUILD_CPP)
 789 AC_SUBST(BUILD_CFLAGS)
 790 AC_SUBST(BUILD_CPPFLAGS)
 791 AC_SUBST(BUILD_LDFLAGS)
 792 AC_SUBST(BUILD_LIBS)
 793 AC_SUBST(BUILD_EXEEXT)
 794 AC_SUBST(BUILD_OBJEXT)
 795 ])dnl
 796 dnl ---------------------------------------------------------------------------
 797 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
 798 dnl ---------------
 799 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 800 dnl into CC.  This will not help with broken scripts that wrap the compiler
 801 dnl with options, but eliminates a more common category of user confusion.
 802 dnl
 803 dnl In particular, it addresses the problem of being able to run the C
 804 dnl preprocessor in a consistent manner.
 805 dnl
 806 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 807 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 808 dnl outweighs that limitation.
 809 AC_DEFUN([CF_CC_ENV_FLAGS],
 810 [
 811 # This should have been defined by AC_PROG_CC
 812 : "${CC:=cc}"
 813
 814 AC_MSG_CHECKING(\$CFLAGS variable)
 815 case "x$CFLAGS" in
 816 (*-[[IUD]]*)
 817         AC_MSG_RESULT(broken)
 818         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 819         cf_flags="$CFLAGS"
 820         CFLAGS=
 821         for cf_arg in $cf_flags
 822         do
 823                 CF_ADD_CFLAGS($cf_arg)
 824         done
 825         ;;
 826 (*)
 827         AC_MSG_RESULT(ok)
 828         ;;
 829 esac
 830
 831 AC_MSG_CHECKING(\$CC variable)
 832 case "$CC" in
 833 (*[[\ \ ]]-*)
 834         AC_MSG_RESULT(broken)
 835         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 836         # humor him...
 837         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 838         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 839         CC="$cf_prog"
 840         for cf_arg in $cf_flags
 841         do
 842                 case "x$cf_arg" in
 843                 (x-[[IUDfgOW]]*)
 844                         CF_ADD_CFLAGS($cf_arg)
 845                         ;;
 846                 (*)
 847                         CC="$CC $cf_arg"
 848                         ;;
 849                 esac
 850         done
 851         CF_VERBOSE(resulting CC: '$CC')
 852         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 853         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 854         ;;
 855 (*)
 856         AC_MSG_RESULT(ok)
 857         ;;
 858 esac
 859 ])dnl
 860 dnl ---------------------------------------------------------------------------
 861 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
 862 dnl ---------------
 863 dnl Determine the default configuration into which we'll install ncurses.  This
 864 dnl can be overridden by the user's command-line options.  There's two items to
 865 dnl look for:
 866 dnl     1. the prefix (e.g., /usr)
 867 dnl     2. the header files (e.g., /usr/include/ncurses)
 868 dnl We'll look for a previous installation of ncurses and use the same defaults.
 869 dnl
 870 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 871 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 872 dnl programs from a vendor's.
 873 AC_DEFUN([CF_CFG_DEFAULTS],
 874 [AC_REQUIRE([AC_PROG_FGREP])dnl
 875
 876 AC_MSG_CHECKING(for prefix)
 877 if test "x$prefix" = "xNONE" ; then
 878         case "$cf_cv_system_name" in
 879                 # non-vendor systems don't have a conflict
 880         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 881                 prefix=/usr
 882                 ;;
 883         (*)     prefix=$ac_default_prefix
 884                 ;;
 885         esac
 886 fi
 887 AC_MSG_RESULT($prefix)
 888
 889 if test "x$prefix" = "xNONE" ; then
 890 AC_MSG_CHECKING(for default include-directory)
 891 test -n "$verbose" && echo 1>&AC_FD_MSG
 892 for cf_symbol in \
 893         "$includedir" \
 894         "$includedir/ncurses" \
 895         "$prefix/include" \
 896         "$prefix/include/ncurses" \
 897         /usr/local/include \
 898         /usr/local/include/ncurses \
 899         /usr/include \
 900         /usr/include/ncurses
 901 do
 902         cf_dir=`eval echo "$cf_symbol"`
 903         if test -f "$cf_dir/curses.h" ; then
 904         if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
 905                 includedir="$cf_symbol"
 906                 test -n "$verbose"  && echo $ECHO_N "   found " 1>&AC_FD_MSG
 907                 break
 908         fi
 909         fi
 910         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 911 done
 912 AC_MSG_RESULT($includedir)
 913 fi
 914 ])dnl
 915 dnl ---------------------------------------------------------------------------
 916 dnl CF_CGETENT version: 6 updated: 2017/01/21 11:06:25
 917 dnl ----------
 918 dnl Check if the terminal-capability database functions are available.  If not,
 919 dnl ncurses has a much-reduced version.
 920 AC_DEFUN([CF_CGETENT],[
 921 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
 922 AC_TRY_LINK([
 923 #include <stdlib.h>],[
 924         char temp[128];
 925         char *buf = temp;
 926         char *db_array = temp;
 927         cgetent(&buf, &db_array, "vt100");
 928         cgetcap(buf, "tc", '=');
 929         cgetmatch(buf, "tc");
 930         ],
 931         [cf_cv_cgetent=yes],
 932         [cf_cv_cgetent=no])
 933 ])
 934
 935 if test "$cf_cv_cgetent" = yes
 936 then
 937         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
 938 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
 939 AC_TRY_LINK([
 940 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
 941 #include <stdlib.h>],[
 942         char temp[128];
 943         char *buf = temp;
 944 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
 945         const char *db_array = temp;
 946         cgetent(&buf, &db_array, "vt100");
 947 #endif
 948         cgetcap(buf, "tc", '=');
 949         cgetmatch(buf, "tc");
 950         ],
 951         [cf_cv_cgetent_const=yes],
 952         [cf_cv_cgetent_const=no])
 953 ])
 954         if test "$cf_cv_cgetent_const" = yes
 955         then
 956                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
 957         fi
 958 fi
 959 ])dnl
 960 dnl ---------------------------------------------------------------------------
 961 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
 962 dnl --------------
 963 dnl Check if we're accidentally using a cache from a different machine.
 964 dnl Derive the system name, as a check for reusing the autoconf cache.
 965 dnl
 966 dnl If we've packaged config.guess and config.sub, run that (since it does a
 967 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 968 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 969 dnl which is useful in cross-compiles.
 970 dnl
 971 dnl Note: we would use $ac_config_sub, but that is one of the places where
 972 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 973 AC_DEFUN([CF_CHECK_CACHE],
 974 [
 975 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
 976         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 977         system_name="$host_os"
 978 else
 979         system_name="`(uname -s -r) 2>/dev/null`"
 980         if test -z "$system_name" ; then
 981                 system_name="`(hostname) 2>/dev/null`"
 982         fi
 983 fi
 984 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 985 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 986
 987 test -z "$system_name" && system_name="$cf_cv_system_name"
 988 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 989
 990 if test ".$system_name" != ".$cf_cv_system_name" ; then
 991         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 992         AC_MSG_ERROR("Please remove config.cache and try again.")
 993 fi
 994 ])dnl
 995 dnl ---------------------------------------------------------------------------
 996 dnl CF_CHECK_ENVIRON version: 3 updated: 2010/05/26 16:44:57
 997 dnl ----------------
 998 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
 999 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
1000 dnl
1001 dnl $1 = the name to check
1002 dnl $2 = the assumed type
1003 AC_DEFUN([CF_CHECK_ENVIRON],
1004 [
1005 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1006     AC_TRY_COMPILE([
1007 #ifdef HAVE_STDLIB_H
1008 #include <stdlib.h>
1009 #endif
1010 #include <unistd.h> ],
1011     ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
1012     [cf_cv_dcl_$1=yes],
1013     [cf_cv_dcl_$1=no])
1014 ])
1015
1016 if test "$cf_cv_dcl_$1" = no ; then
1017     CF_UPPER(cf_result,decl_$1)
1018     AC_DEFINE_UNQUOTED($cf_result)
1019 fi
1020
1021 # It's possible (for near-UNIX clones) that the data doesn't exist
1022 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1023 ])dnl
1024 dnl ---------------------------------------------------------------------------
1025 dnl CF_CHECK_ERRNO version: 13 updated: 2020/03/10 18:53:47
1026 dnl --------------
1027 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
1028 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
1029 dnl ourselves.
1030 dnl
1031 dnl $1 = the name to check
1032 dnl $2 = the assumed type
1033 AC_DEFUN([CF_CHECK_ERRNO],
1034 [
1035 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1036         AC_TRY_COMPILE([
1037 #ifdef HAVE_STDLIB_H
1038 #include <stdlib.h>
1039 #endif
1040 #include <stdio.h>
1041 #include <sys/types.h>
1042 #include <errno.h> ],
1043         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
1044         [cf_cv_dcl_$1=yes],
1045         [cf_cv_dcl_$1=no])
1046 ])
1047
1048 if test "$cf_cv_dcl_$1" = no ; then
1049         CF_UPPER(cf_result,decl_$1)
1050         AC_DEFINE_UNQUOTED($cf_result)
1051 fi
1052
1053 # It's possible (for near-UNIX clones) that the data doesn't exist
1054 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1055 ])dnl
1056 dnl ---------------------------------------------------------------------------
1057 dnl CF_CHECK_EXTERN_DATA version: 4 updated: 2015/04/18 08:56:57
1058 dnl --------------------
1059 dnl Check for existence of external data in the current set of libraries.  If
1060 dnl we can modify it, it's real enough.
1061 dnl $1 = the name to check
1062 dnl $2 = its type
1063 AC_DEFUN([CF_CHECK_EXTERN_DATA],
1064 [
1065 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
1066         AC_TRY_LINK([
1067 #undef $1
1068 extern $2 $1;
1069 ],
1070         [$1 = 2],
1071         [cf_cv_have_$1=yes],
1072         [cf_cv_have_$1=no])
1073 ])
1074
1075 if test "$cf_cv_have_$1" = yes ; then
1076         CF_UPPER(cf_result,have_$1)
1077         AC_DEFINE_UNQUOTED($cf_result)
1078 fi
1079
1080 ])dnl
1081 dnl ---------------------------------------------------------------------------
1082 dnl CF_CHECK_FVISIBILITY version: 2 updated: 2020/04/04 16:16:13
1083 dnl --------------------
1084 dnl Check whether the compiler understands -fvisibility=hidden
1085 dnl
1086 dnl $1 = compiler
1087 dnl $2 = compiler-flags variable name
1088 dnl $3 = cache variable to set
1089 AC_DEFUN([CF_CHECK_FVISIBILITY],[
1090 AC_CACHE_CHECK(if $1 -fvisibility=hidden option works,$3,[
1091     cf_save_cflags="[$]$2"
1092     $2="[$]$2 -fvisibility=hidden"
1093     AC_TRY_LINK([
1094 __attribute__ ((visibility("default"))) int somefunc() {return 42;}
1095         ],[
1096         if (somefunc()) return 1;
1097 ],
1098     [$3=yes],
1099     [$3=no])
1100     $2=$cf_save_cflags
1101 ])
1102 ])dnl
1103 dnl ---------------------------------------------------------------------------
1104 dnl CF_CHECK_GETENV version: 2 updated: 2021/01/02 17:09:14
1105 dnl ---------------
1106 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1107 dnl discard the previous pointer when returning a new one.
1108 AC_DEFUN([CF_CHECK_GETENV],
1109 [
1110 AC_REQUIRE([CF_CHECK_ENVIRON])
1111 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1112 AC_CHECK_FUNCS( putenv setenv strdup )
1113 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1114 AC_TRY_RUN([
1115 #include <stdlib.h>
1116 #include <unistd.h>
1117 #include <stdio.h>
1118 #include <string.h>
1119 #include <sys/types.h>
1120
1121 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1122 extern char **environ;  /* POSIX, but some systems are not... */
1123 #endif
1124
1125 #if defined(HAVE_STRDUP)
1126 #define str_alloc(s) strdup(s)
1127 #else
1128 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1129 #endif
1130
1131 static void set_value(const char *name, const char *value)
1132 {
1133 #if defined(HAVE_SETENV)
1134         setenv(name, value, 1);
1135 #elif defined(HAVE_PUTENV)
1136         char buffer[1024];
1137         sprintf(buffer, "%s=%s", name, value);
1138         putenv(str_alloc(buffer));
1139 #else
1140 #error neither putenv/setenv found
1141 #endif
1142 }
1143 int main(void)
1144 {
1145         int pass;
1146         size_t numenv, limit, j;
1147         char **mynames;
1148         char **myvalues;
1149         char **mypointer;
1150         char *equals;
1151         for (numenv = 0; environ[numenv]; ++numenv) ;
1152         limit = numenv + 10;
1153         mynames = (char **) calloc(limit + 1, sizeof(char *));
1154         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1155         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1156 #if defined(HAVE_ENVIRON)
1157         for (j = 0; environ[j]; ++j) {
1158                 mynames[j] = str_alloc(environ[j]);
1159                 equals = strchr(mynames[j], '=');
1160                 if (equals != 0) {
1161                         *equals++ = '\\0';
1162                         myvalues[j] = str_alloc(equals);
1163                 } else {
1164                         myvalues[j] = str_alloc("");
1165                 }
1166         }
1167 #endif
1168         for (j = numenv; j < limit; ++j) {
1169                 char name[80];
1170                 char value[80];
1171                 size_t found;
1172                 size_t k = 0;
1173                 do {
1174                         size_t jk;
1175                         found = 0;
1176                         sprintf(name, "TERM%lu", (unsigned long) k);
1177                         for (jk = 0; jk < j; ++jk) {
1178                                 if (!strcmp(name, mynames[jk])) {
1179                                         found = 1;
1180                                         ++k;
1181                                         break;
1182                                 }
1183                         }
1184                 } while (found);
1185                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1186                 set_value(name, value);
1187                 mynames[j] = str_alloc(name);
1188                 myvalues[j] = str_alloc(value);
1189         }
1190         for (pass = 0; pass < 3; ++pass) {
1191                 for (j = 0; j < limit; ++j) {
1192                         char *value = getenv(mynames[j]);
1193                         if (pass) {
1194                                 if (value == 0) {
1195                                         fprintf(stderr, "getenv returned null for %s\\n", mynames[j]);
1196                                         ${cf_cv_main_return:-return}(1);
1197                                 } else if (value != mypointer[j]) {
1198                                         fprintf(stderr, "getenv returned different pointer for %s\\n", mynames[j]);
1199                                         ${cf_cv_main_return:-return}(1);
1200                                 } else if (strcmp(value, myvalues[j])) {
1201                                         fprintf(stderr, "getenv returned different value for %s\\n", mynames[j]);
1202                                         ${cf_cv_main_return:-return}(1);
1203                                 }
1204                         } else {
1205                                 size_t k;
1206                                 mypointer[j] = value;
1207                                 for (k = 0; k < j; ++k) {
1208                                         if (mypointer[j] == mypointer[k]) {
1209                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\\n", mynames[j], mynames[k]);
1210                                                 ${cf_cv_main_return:-return}(1);
1211                                         }
1212                                 }
1213                         }
1214                 }
1215         }
1216         ${cf_cv_main_return:-return}(0);
1217 }
1218 ],
1219 [cf_cv_consistent_getenv=yes],
1220 [cf_cv_consistent_getenv=no],
1221 [cf_cv_consistent_getenv=unknown])
1222 ])
1223
1224 if test "x$cf_cv_consistent_getenv" = xno
1225 then
1226         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1227 fi
1228 ])dnl
1229 dnl ---------------------------------------------------------------------------
1230 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
1231 dnl ---------------------
1232 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1233 [
1234 AC_REQUIRE([CF_GNAT_VERSION])
1235 case "$cf_cv_gnat_version" in
1236 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1237         cf_cv_prog_gnat_correct=yes
1238         ;;
1239 (*)
1240         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1241         cf_cv_prog_gnat_correct=no
1242         ;;
1243 esac
1244 ])
1245 dnl ---------------------------------------------------------------------------
1246 dnl CF_CHECK_GPM_WGETCH version: 6 updated: 2021/01/04 18:48:01
1247 dnl -------------------
1248 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1249 dnl is not "weak" - warn about this because it can create problems linking
1250 dnl applications with ncurses.
1251 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1252 AC_REQUIRE([AC_PROG_EGREP])dnl
1253
1254 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1255
1256 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1257 cf_cv_check_gpm_wgetch=unknown
1258 if test "$cross_compiling" != yes ; then
1259
1260 cat >conftest.$ac_ext <<CF_EOF
1261 #include <gpm.h>
1262 int main(void)
1263 {
1264         Gpm_Wgetch();
1265         ${cf_cv_main_return:-return}(0);
1266 }
1267 CF_EOF
1268
1269         cf_save_LIBS="$LIBS"
1270         # This only works if we can look at the symbol table.  If a shared
1271         # library is stripped for install, we cannot use that.  So we're forced
1272         # to rely on the static library, noting that some packagers may not
1273         # include it.
1274         LIBS="-static -lgpm -dynamic $LIBS"
1275         if AC_TRY_EVAL(ac_compile) ; then
1276                 if AC_TRY_EVAL(ac_link) ; then
1277                         cf_cv_check_gpm_wgetch="`nm \"conftest$ac_exeext\" | ${EGREP-egrep} '\<wgetch\>' | ${EGREP-egrep} '\<[[vVwW]]\>'`"
1278                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1279                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1280                 fi
1281         fi
1282         rm -rf ./conftest*
1283         LIBS="$cf_save_LIBS"
1284 fi
1285 ])
1286
1287 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1288         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1289 fi
1290 ])])dnl
1291 dnl ---------------------------------------------------------------------------
1292 dnl CF_CHECK_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
1293 dnl ------------------------
1294 dnl Show the version of libtool
1295 dnl
1296 dnl Save the version in a cache variable - this is not entirely a good thing,
1297 dnl but the version string from libtool is very ugly, and for bug reports it
1298 dnl might be useful to have the original string.
1299 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1300 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1301 then
1302         AC_MSG_CHECKING(version of $LIBTOOL)
1303         CF_LIBTOOL_VERSION
1304         AC_MSG_RESULT($cf_cv_libtool_version)
1305         if test -z "$cf_cv_libtool_version" ; then
1306                 AC_MSG_ERROR(This is not GNU libtool)
1307         fi
1308 else
1309         AC_MSG_ERROR(GNU libtool has not been found)
1310 fi
1311 ])dnl
1312 dnl ---------------------------------------------------------------------------
1313 dnl CF_CHECK_WCHAR_H version: 3 updated: 2021/01/01 13:31:04
1314 dnl ----------------
1315 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1316 AC_DEFUN([CF_CHECK_WCHAR_H],[
1317 AC_CHECK_HEADERS( \
1318 wchar.h \
1319 wctype.h \
1320 )
1321 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1322 AC_TRY_COMPILE(
1323 [
1324 #include <stdlib.h>
1325 #ifdef HAVE_WCHAR_H
1326 #include <wchar.h>
1327 #endif
1328 #ifdef HAVE_WCTYPE_H
1329 #include <wctype.h>
1330 #endif
1331 ],[
1332         wint_t foo = 0;
1333         int bar = iswpunct(foo)],
1334         [cf_cv_wchar_h_okay=yes],
1335         [cf_cv_wchar_h_okay=no])])
1336
1337 if test "$cf_cv_wchar_h_okay" = no
1338 then
1339         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1340 fi
1341 ])dnl
1342 dnl ---------------------------------------------------------------------------
1343 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 2 updated: 2021/01/02 17:09:14
1344 dnl -------------------------
1345 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1346 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1347 dnl
1348 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1349 dnl all of those were combined into a page of useful graphics characters.
1350 dnl
1351 dnl So far, so good.
1352 dnl
1353 dnl However, while they are useful, there are other considerations.  CJK
1354 dnl is (because of poor device resolution) often rendered as double-width
1355 dnl characters.  So... for these generally-useful characters, what should
1356 dnl be the width (to make them consistent with adjacent characters)?
1357 dnl
1358 dnl The obvious choice would have been to make this locale-dependent, and use
1359 dnl wcwidth() to tell applications what the actual width is.  That was too
1360 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1361 dnl See for example
1362 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1363 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1364 dnl
1365 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1366 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1367 dnl instance, it lists half (44/96) of the Latin-1 characters as
1368 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1369 dnl
1370 dnl What this means for the implementor is that on some systems wcwidth() can
1371 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1372 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1373 dnl characters).  These do not necessarily match the behavior of the terminal
1374 dnl emulator.  xterm, for instance, does an optional startup check to find if
1375 dnl this problem (or similar) exists with the system's locale tables, rejecting
1376 dnl them if they are too unreliable.
1377 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1378 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1379 cat >conftest.in <<CF_EOF
1380 -       VT100 symbols
1381 0x250c  upper left corner
1382 0x2514  lower left corner
1383 0x2510  upper right corner
1384 0x2518  lower right corner
1385 0x251c  tee pointing left
1386 0x2524  tee pointing right
1387 0x2534  tee pointing up
1388 0x252c  tee pointing down
1389 0x2500  horizontal line
1390 0x2502  vertical line
1391 0x253c  large plus or crossover
1392 0x23ba  scan line 1
1393 0x23bd  scan line 9
1394 0x25c6  diamond
1395 0x2592  checker board (stipple)
1396 0x00b0  degree symbol
1397 0x00b1  plus/minus
1398 0x00b7  bullet
1399 -       Teletype 5410v1 symbols
1400 0x2190  arrow pointing left
1401 0x2192  arrow pointing right
1402 0x2193  arrow pointing down
1403 0x2191  arrow pointing up
1404 0x2592  board of squares
1405 0x2603  lantern symbol
1406 0x25ae  solid square block
1407 -       these defaults were invented for ncurses
1408 0x23bb  scan line 3
1409 0x23bc  scan line 7
1410 0x2264  less-than-or-equal-to
1411 0x2265  greater-than-or-equal-to
1412 0x03c0  greek pi
1413 0x2260  not-equal
1414 0x00a3  pound-sterling symbol
1415 -       thick-line-drawing
1416 0x250f  upper left corner
1417 0x2517  lower left corner
1418 0x2513  upper right corner
1419 0x251b  lower right corner
1420 0x2523  tee pointing left
1421 0x252b  tee pointing right
1422 0x253b  tee pointing up
1423 0x2533  tee pointing down
1424 0x2501  horizontal line
1425 0x2503  vertical line
1426 0x254b  large plus or crossover
1427 -       double-line-drawing
1428 0x2554  upper left corner
1429 0x255a  lower left corner
1430 0x2557  upper right corner
1431 0x255d  lower right corner
1432 0x2563  tee pointing left
1433 0x2560  tee pointing right
1434 0x2569  tee pointing up
1435 0x2566  tee pointing down
1436 0x2550  horizontal line
1437 0x2551  vertical line
1438 0x256c  large plus or crossover
1439 CF_EOF
1440 AC_TRY_RUN([
1441 #include <locale.h>
1442 #include <stdio.h>
1443 #include <wchar.h>
1444
1445 #define MY_LEN 80
1446
1447 int
1448 main(void)
1449 {
1450         FILE *fp;
1451         int value;
1452         char buffer[MY_LEN + 1];
1453         char notes[MY_LEN + 1];
1454         int totals = 0;
1455         int passed = 0;
1456
1457         if (setlocale(LC_ALL, "en_US.UTF8") ||
1458                 setlocale(LC_ALL, "en_US.UTF-8") ||
1459                 setlocale(LC_ALL, "en_US.utf8") ||
1460                 setlocale(LC_ALL, "en_US.utf-8")) {
1461                 if ((fp = fopen("conftest.in", "r")) != 0) {
1462                         while (fgets(buffer, MY_LEN, fp) != 0) {
1463                                 if (*buffer == '-') {
1464                                         fprintf(stderr, "\\t%s", buffer);
1465                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1466                                         ++totals;
1467                                         if (wcwidth(value) == 1)
1468                                                 ++passed;
1469                                         fprintf(stderr, "%d\\t%s", wcwidth(value), buffer);
1470                                 } else {
1471                                         fprintf(stderr, "?\\t%s", buffer);
1472                                 }
1473                         }
1474                 }
1475         }
1476         fprintf(stderr, "%d/%d passed wcwidth/graphics check\\n", passed, totals);
1477         return (totals == passed) ? 0 : 1;
1478 }
1479 ],
1480 [cf_cv_wcwidth_graphics=yes],
1481 [cf_cv_wcwidth_graphics=no],
1482 [cf_cv_wcwidth_graphics=unknown])
1483 ])
1484 ])dnl
1485 dnl ---------------------------------------------------------------------------
1486 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
1487 dnl -----------------
1488 dnl Check if the given compiler is really clang.  clang's C driver defines
1489 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1490 dnl not ignore some gcc options.
1491 dnl
1492 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1493 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1494 dnl the wrappers for gcc and g++ warnings.
1495 dnl
1496 dnl $1 = GCC (default) or GXX
1497 dnl $2 = CLANG_COMPILER (default)
1498 dnl $3 = CFLAGS (default) or CXXFLAGS
1499 AC_DEFUN([CF_CLANG_COMPILER],[
1500 ifelse([$2],,CLANG_COMPILER,[$2])=no
1501
1502 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1503         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1504         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1505         AC_TRY_COMPILE([],[
1506 #ifdef __clang__
1507 #else
1508 make an error
1509 #endif
1510 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1511 ],[])
1512         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1513         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1514 fi
1515
1516 CLANG_VERSION=none
1517
1518 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
1519         case "$CC" in
1520         (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
1521                 AC_MSG_WARN(replacing broken compiler alias $CC)
1522                 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
1523                 CC=clang
1524                 ;;
1525         esac
1526
1527         AC_MSG_CHECKING(version of $CC)
1528         CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1529         test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
1530         AC_MSG_RESULT($CLANG_VERSION)
1531
1532         for cf_clang_opt in \
1533                 -Qunused-arguments \
1534                 -Wno-error=implicit-function-declaration
1535         do
1536                 AC_MSG_CHECKING(if option $cf_clang_opt works)
1537                 cf_save_CFLAGS="$CFLAGS"
1538                 CFLAGS="$CFLAGS $cf_clang_opt"
1539                 AC_TRY_LINK([
1540                         #include <stdio.h>],[
1541                         printf("hello!\\n");],[
1542                         cf_clang_optok=yes],[
1543                         cf_clang_optok=no])
1544                 AC_MSG_RESULT($cf_clang_optok)
1545                 CFLAGS="$cf_save_CFLAGS"
1546                 if test "$cf_clang_optok" = yes; then
1547                         CF_VERBOSE(adding option $cf_clang_opt)
1548                         CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
1549                 fi
1550         done
1551 fi
1552 ])
1553 dnl ---------------------------------------------------------------------------
1554 dnl CF_CONST_X_STRING version: 6 updated: 2021/01/01 13:31:04
1555 dnl -----------------
1556 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1557 dnl character-strings.
1558 dnl
1559 dnl It is ambiguous because the specification accommodated the pre-ANSI
1560 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1561 dnl compiler other than by costly add-ons.  Because of this, the specification
1562 dnl did not take into account the use of const for telling the compiler that
1563 dnl string literals would be in readonly memory.
1564 dnl
1565 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1566 dnl let the compiler decide how to represent Xt's strings which were #define'd.
1567 dnl That does not solve the problem of using the block of Xt's strings which
1568 dnl are compiled into the library (and is less efficient than one might want).
1569 dnl
1570 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1571 dnl when compiling the library and compiling using the library, to tell the
1572 dnl compiler that String is const.
1573 AC_DEFUN([CF_CONST_X_STRING],
1574 [
1575 AC_REQUIRE([AC_PATH_XTRA])
1576
1577 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
1578
1579 AC_TRY_COMPILE(
1580 [
1581 #include <stdlib.h>
1582 #include <X11/Intrinsic.h>
1583 ],
1584 [String foo = malloc(1); (void)foo],[
1585
1586 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1587         AC_TRY_COMPILE(
1588                 [
1589 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1590 #undef  XTSTRINGDEFINES /* X11R5 and later */
1591 #include <stdlib.h>
1592 #include <X11/Intrinsic.h>
1593                 ],[String foo = malloc(1); *foo = 0],[
1594                         cf_cv_const_x_string=no
1595                 ],[
1596                         cf_cv_const_x_string=yes
1597                 ])
1598 ])
1599
1600 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1601
1602 case "$cf_cv_const_x_string" in
1603 (no)
1604         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1605         ;;
1606 (*)
1607         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1608         ;;
1609 esac
1610
1611 ])
1612 ])dnl
1613 dnl ---------------------------------------------------------------------------
1614 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1615 dnl -----------------
1616 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1617 dnl is a late feature for the standard and is not in some recent compilers
1618 dnl (1999/9/11).
1619 AC_DEFUN([CF_CPP_PARAM_INIT],
1620 [
1621 if test -n "$CXX"; then
1622 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1623         AC_LANG_SAVE
1624         AC_LANG_CPLUSPLUS
1625         AC_TRY_RUN([
1626 class TEST {
1627 private:
1628         int value;
1629 public:
1630         TEST(int x = 1);
1631         ~TEST();
1632 };
1633
1634 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1635 {
1636         value = x;
1637 }
1638 int main(void) { }
1639 ],
1640         [cf_cv_cpp_param_init=yes],
1641         [cf_cv_cpp_param_init=no],
1642         [cf_cv_cpp_param_init=unknown])
1643         AC_LANG_RESTORE
1644 ])
1645 fi
1646 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1647 ])dnl
1648 dnl ---------------------------------------------------------------------------
1649 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1650 dnl ------------------
1651 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1652 dnl not be supported in g++ before 3.0
1653 AC_DEFUN([CF_CPP_STATIC_CAST],
1654 [
1655 if test -n "$CXX"; then
1656
1657 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1658         AC_LANG_SAVE
1659         AC_LANG_CPLUSPLUS
1660
1661         AC_TRY_COMPILE([
1662 class NCursesPanel
1663 {
1664 public:
1665   NCursesPanel(int nlines,
1666                int ncols,
1667                int begin_y = 0,
1668                int begin_x = 0)
1669   {
1670   }
1671   NCursesPanel();
1672   ~NCursesPanel();
1673 };
1674
1675 template<class T> class NCursesUserPanel : public NCursesPanel
1676 {
1677 public:
1678   NCursesUserPanel (int nlines,
1679                     int ncols,
1680                     int begin_y = 0,
1681                     int begin_x = 0,
1682                     const T* p_UserData = static_cast<T*>(0))
1683     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1684   {
1685   };
1686   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1687   {
1688   };
1689
1690   virtual ~NCursesUserPanel() {};
1691 };
1692 ],[
1693         const char* p_UserData = static_cast<char*>(0)],
1694         [cf_cv_cpp_static_cast=yes],
1695         [cf_cv_cpp_static_cast=no])
1696
1697         AC_LANG_RESTORE
1698 ])
1699
1700 fi
1701
1702 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1703 ])dnl
1704 dnl ---------------------------------------------------------------------------
1705 dnl CF_CXX_AR_FLAGS version: 3 updated: 2021/01/01 13:31:04
1706 dnl ---------------
1707 dnl Setup special archiver flags for given compilers.
1708 AC_DEFUN([CF_CXX_AR_FLAGS],[
1709         CXX_AR='$(AR)'
1710         CXX_ARFLAGS='$(ARFLAGS)'
1711         case "$cf_cv_system_name" in
1712         (irix*)
1713             if test "$GXX" != yes ; then
1714                 CXX_AR='$(CXX)'
1715                 CXX_ARFLAGS='-ar -o'
1716             fi
1717             ;;
1718         (sco3.2v5*)
1719             CXXLDFLAGS="-u main"
1720             ;;
1721         (solaris2*)
1722             if test "$GXX" != yes ; then
1723                 CXX_AR='$(CXX)'
1724                 CXX_ARFLAGS='-xar -o'
1725             fi
1726             ;;
1727         esac
1728         AC_SUBST(CXXLDFLAGS)
1729         AC_SUBST(CXX_AR)
1730         AC_SUBST(CXX_ARFLAGS)
1731 ])dnl
1732 dnl ---------------------------------------------------------------------------
1733 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1734 dnl -------------------------
1735 dnl For c++, check if iostream uses "std::" namespace.
1736 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1737 AC_CHECK_HEADERS(iostream)
1738 if test x"$ac_cv_header_iostream" = xyes ; then
1739         AC_MSG_CHECKING(if iostream uses std-namespace)
1740         AC_TRY_COMPILE([
1741 #include <iostream>
1742 using std::endl;
1743 using std::cerr;],[
1744 cerr << "testing" << endl;
1745 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1746         AC_MSG_RESULT($cf_iostream_namespace)
1747         if test "$cf_iostream_namespace" = yes ; then
1748                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1749         fi
1750 fi
1751 ])dnl
1752 dnl ---------------------------------------------------------------------------
1753 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1754 dnl -----------
1755 dnl Check if the C compiler supports "inline".
1756 dnl $1 is the name of a shell variable to set if inline is supported
1757 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1758 AC_DEFUN([CF_C_INLINE],[
1759 AC_REQUIRE([CF_GCC_VERSION])
1760 AC_C_INLINE
1761 $1=
1762 if test "$ac_cv_c_inline" != no ; then
1763         $1=inline
1764         if test "$INTEL_COMPILER" = yes
1765         then
1766                 :
1767         elif test "$CLANG_COMPILER" = yes
1768         then
1769                 :
1770         elif test "$GCC" = yes
1771         then
1772                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1773                 cf_save_CFLAGS=$CFLAGS
1774                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1775                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1776                 [${cf_cv_main_return:-return} foo()],
1777                 [cf_cv_gcc_inline=yes],
1778                 [cf_cv_gcc_inline=no])
1779                 CFLAGS=$cf_save_CFLAGS
1780                 ])
1781                 if test "$cf_cv_gcc_inline" = yes ; then
1782                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1783                 fi
1784         fi
1785 fi
1786 AC_SUBST($1)
1787 ])dnl
1788 dnl ---------------------------------------------------------------------------
1789 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1790 dnl ----------
1791 dnl "dirname" is not portable, so we fake it with a shell script.
1792 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1793 dnl ---------------------------------------------------------------------------
1794 dnl CF_DIRS_TO_MAKE version: 4 updated: 2021/01/01 13:31:04
1795 dnl ---------------
1796 AC_DEFUN([CF_DIRS_TO_MAKE],
1797 [
1798 DIRS_TO_MAKE="lib"
1799 for cf_item in $cf_list_models
1800 do
1801         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1802         for cf_item2 in $DIRS_TO_MAKE
1803         do
1804                 test "$cf_item2" = "$cf_subdir" && break
1805         done
1806         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1807 done
1808 for cf_dir in $DIRS_TO_MAKE
1809 do
1810         test ! -d "$cf_dir" && mkdir "$cf_dir"
1811 done
1812 AC_SUBST(DIRS_TO_MAKE)
1813 ])dnl
1814 dnl ---------------------------------------------------------------------------
1815 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1816 dnl ---------------
1817 dnl You can always use "make -n" to see the actual options, but it's hard to
1818 dnl pick out/analyze warning messages when the compile-line is long.
1819 dnl
1820 dnl Sets:
1821 dnl     ECHO_LT - symbol to control if libtool is verbose
1822 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1823 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1824 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1825 dnl     ECHO_CC - symbol to put before any "cc" line
1826 dnl
1827 AC_DEFUN([CF_DISABLE_ECHO],[
1828 AC_MSG_CHECKING(if you want to see long compiling messages)
1829 CF_ARG_DISABLE(echo,
1830         [  --disable-echo          do not display "compiling" commands],
1831         [
1832         ECHO_LT='--silent'
1833         ECHO_LD='@echo linking [$]@;'
1834         RULE_CC='@echo compiling [$]<'
1835         SHOW_CC='@echo compiling [$]@'
1836         ECHO_CC='@'
1837 ],[
1838         ECHO_LT=''
1839         ECHO_LD=''
1840         RULE_CC=''
1841         SHOW_CC=''
1842         ECHO_CC=''
1843 ])
1844 AC_MSG_RESULT($enableval)
1845 AC_SUBST(ECHO_LT)
1846 AC_SUBST(ECHO_LD)
1847 AC_SUBST(RULE_CC)
1848 AC_SUBST(SHOW_CC)
1849 AC_SUBST(ECHO_CC)
1850 ])dnl
1851 dnl ---------------------------------------------------------------------------
1852 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1853 dnl ------------------------
1854 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1855 AC_MSG_CHECKING(if we want to use GNAT projects)
1856 CF_ARG_DISABLE(gnat-projects,
1857         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1858         [enable_gnat_projects=no],
1859         [enable_gnat_projects=yes])
1860 AC_MSG_RESULT($enable_gnat_projects)
1861 ])dnl
1862 dnl ---------------------------------------------------------------------------
1863 dnl CF_DISABLE_LEAKS version: 8 updated: 2021/01/05 20:05:09
1864 dnl ----------------
1865 dnl Combine no-leak checks with the libraries or tools that are used for the
1866 dnl checks.
1867 AC_DEFUN([CF_DISABLE_LEAKS],[
1868
1869 AC_REQUIRE([CF_WITH_DMALLOC])
1870 AC_REQUIRE([CF_WITH_DBMALLOC])
1871 AC_REQUIRE([CF_WITH_VALGRIND])
1872
1873 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1874 AC_ARG_ENABLE(leaks,
1875         [  --disable-leaks         test: free permanent memory, analyze leaks],
1876         [enable_leaks=no],
1877         [enable_leaks=yes])
1878 dnl TODO - drop with_no_leaks
1879 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1880 AC_MSG_RESULT($with_no_leaks)
1881
1882 if test "$enable_leaks" = no ; then
1883         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1884         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1885 fi
1886 ])dnl
1887 dnl ---------------------------------------------------------------------------
1888 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1889 dnl --------------------------
1890 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1891 dnl the older "-version-info" feature.  The newer feature allows us to use
1892 dnl version numbering on shared libraries which make them compatible with
1893 dnl various systems.
1894 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1895 [
1896 AC_MSG_CHECKING(if libtool -version-number should be used)
1897 CF_ARG_DISABLE(libtool-version,
1898         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
1899         [cf_libtool_version=no],
1900         [cf_libtool_version=yes])
1901 AC_MSG_RESULT($cf_libtool_version)
1902
1903 if test "$cf_libtool_version" = yes ; then
1904         LIBTOOL_VERSION="-version-number"
1905 else
1906         LIBTOOL_VERSION="-version-info"
1907         case "x$VERSION" in
1908         (x)
1909                 AC_MSG_WARN(VERSION was not set)
1910                 ;;
1911         (x*.*.*)
1912                 ABI_VERSION="$VERSION"
1913                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1914                 ;;
1915         (x*:*:*)
1916                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
1917                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1918                 ;;
1919         (*)
1920                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
1921                 ;;
1922         esac
1923 fi
1924
1925 AC_SUBST(ABI_VERSION)
1926 AC_SUBST(LIBTOOL_VERSION)
1927 ])dnl
1928 dnl ---------------------------------------------------------------------------
1929 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
1930 dnl ---------------------
1931 dnl The rpath-hack makes it simpler to build programs, particularly with the
1932 dnl *BSD ports which may have essential libraries in unusual places.  But it
1933 dnl can interfere with building an executable for the base system.  Use this
1934 dnl option in that case.
1935 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1936 [
1937 AC_MSG_CHECKING(if rpath-hack should be disabled)
1938 CF_ARG_DISABLE(rpath-hack,
1939         [  --disable-rpath-hack    don't add rpath options for additional libraries],
1940         [enable_rpath_hack=no],
1941         [enable_rpath_hack=yes])
1942 dnl TODO - drop cf_disable_rpath_hack
1943 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
1944 AC_MSG_RESULT($cf_disable_rpath_hack)
1945
1946 if test "$enable_rpath_hack" = yes ; then
1947         CF_RPATH_HACK
1948 fi
1949 ])
1950 dnl ---------------------------------------------------------------------------
1951 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
1952 dnl -----------------------
1953 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
1954 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1955 dnl an unconditional feature.
1956 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1957
1958 AC_MSG_CHECKING(if you want broken-linker support code)
1959 AC_ARG_ENABLE(broken_linker,
1960         [  --enable-broken_linker  compile with broken-linker support code],
1961         [with_broken_linker=$enableval],
1962         [with_broken_linker=no])
1963 AC_MSG_RESULT($with_broken_linker)
1964
1965 : "${BROKEN_LINKER:=0}"
1966 if test "x$with_broken_linker" = xyes ; then
1967         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1968         BROKEN_LINKER=1
1969 fi
1970 AC_SUBST(BROKEN_LINKER)
1971 ])dnl
1972 dnl ---------------------------------------------------------------------------
1973 dnl CF_ENABLE_PC_FILES version: 13 updated: 2015/11/01 05:27:39
1974 dnl ------------------
1975 dnl This is the "--enable-pc-files" option, which is available if there is a
1976 dnl pkg-config configuration on the local machine.
1977 AC_DEFUN([CF_ENABLE_PC_FILES],[
1978 AC_REQUIRE([CF_PKG_CONFIG])
1979 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
1980
1981 if test "x$PKG_CONFIG" != xnone
1982 then
1983         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
1984 else
1985         AC_MSG_CHECKING(if we should install .pc files)
1986 fi
1987
1988 AC_ARG_ENABLE(pc-files,
1989         [  --enable-pc-files       generate and install .pc files for pkg-config],
1990         [enable_pc_files=$enableval],
1991         [enable_pc_files=no])
1992 AC_MSG_RESULT($enable_pc_files)
1993
1994 if test "x$enable_pc_files" != xno
1995 then
1996         MAKE_PC_FILES=
1997         case "x$PKG_CONFIG_LIBDIR" in
1998         (xno|xyes)
1999                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
2000                 ;;
2001         (*)
2002                 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
2003                 ;;
2004         esac
2005 else
2006         MAKE_PC_FILES="#"
2007 fi
2008 AC_SUBST(MAKE_PC_FILES)
2009 ])dnl
2010 dnl ---------------------------------------------------------------------------
2011 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
2012 dnl ---------------
2013 dnl Check if the rpath option should be used, setting cache variable
2014 dnl cf_cv_enable_rpath if so.
2015 AC_DEFUN([CF_ENABLE_RPATH],
2016 [
2017 AC_MSG_CHECKING(if rpath option should be used)
2018 AC_ARG_ENABLE(rpath,
2019 [  --enable-rpath          use rpath option when generating shared libraries],
2020 [cf_cv_enable_rpath=$enableval],
2021 [cf_cv_enable_rpath=no])
2022 AC_MSG_RESULT($cf_cv_enable_rpath)
2023 ])dnl
2024 dnl ---------------------------------------------------------------------------
2025 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
2026 dnl ----------------------
2027 dnl On a few platforms, the compiler and/or loader nags with untruthful
2028 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
2029 dnl and implying that most uses of the recommended alternatives are correct.
2030 dnl
2031 dnl Factually speaking, no one has actually counted the number of uses of these
2032 dnl functions versus the total of incorrect uses.  Samples of a few thousand
2033 dnl instances are meaningless compared to the hundreds of millions of lines of
2034 dnl existing C code.
2035 dnl
2036 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
2037 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
2038 dnl standard - but evolved through phases, and older implementations are likely
2039 dnl to yield surprising results, as documented in manpages on various systems.
2040 AC_DEFUN([CF_ENABLE_STRING_HACKS],
2041 [
2042 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
2043 AC_ARG_ENABLE(string-hacks,
2044         [  --enable-string-hacks   work around bogus compiler/loader warnings],
2045         [enable_string_hacks=$enableval],
2046         [enable_string_hacks=no])
2047 AC_MSG_RESULT($enable_string_hacks)
2048
2049 if test "x$enable_string_hacks" = "xyes"; then
2050         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
2051         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
2052         AC_CHECK_FUNC(strlcat,[
2053                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2054                 ],[
2055                 AC_CHECK_LIB(bsd,strlcat,[
2056                         CF_ADD_LIB(bsd)
2057                         AC_CHECK_HEADERS(bsd/string.h)
2058                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2059                         ])
2060                 ])
2061         AC_CHECK_FUNCS( strlcpy snprintf )
2062 fi
2063 ])dnl
2064 dnl ---------------------------------------------------------------------------
2065 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
2066 dnl ------------------
2067 dnl Configure-option to enable gcc warnings
2068 dnl
2069 dnl $1 = extra options to add, if supported
2070 dnl $2 = option for checking attributes.  By default, this is done when
2071 dnl      warnings are enabled.  For other values:
2072 dnl      yes: always do this, e.g., to use in generated library-headers
2073 dnl      no: never do this
2074 AC_DEFUN([CF_ENABLE_WARNINGS],[
2075 if test "$GCC" = yes || test "$GXX" = yes
2076 then
2077 CF_FIX_WARNINGS(CFLAGS)
2078 CF_FIX_WARNINGS(CPPFLAGS)
2079 CF_FIX_WARNINGS(LDFLAGS)
2080 AC_MSG_CHECKING(if you want to turn on gcc warnings)
2081 CF_ARG_ENABLE(warnings,
2082         [  --enable-warnings       test: turn on gcc compiler warnings],
2083         [enable_warnings=yes],
2084         [enable_warnings=no])
2085 AC_MSG_RESULT($enable_warnings)
2086 if test "$enable_warnings" = "yes"
2087 then
2088         ifelse($2,,[CF_GCC_ATTRIBUTES])
2089         CF_GCC_WARNINGS($1)
2090 fi
2091 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
2092 fi
2093 ])dnl
2094 dnl ---------------------------------------------------------------------------
2095 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
2096 dnl --------
2097 dnl Check if 'errno' is declared in <errno.h>
2098 AC_DEFUN([CF_ERRNO],
2099 [
2100 CF_CHECK_ERRNO(errno)
2101 ])dnl
2102 dnl ---------------------------------------------------------------------------
2103 dnl CF_ETIP_DEFINES version: 6 updated: 2021/01/02 17:09:14
2104 dnl ---------------
2105 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
2106 dnl math.h and builtin.h, only for ncurses
2107 AC_DEFUN([CF_ETIP_DEFINES],
2108 [
2109 AC_MSG_CHECKING(for special defines needed for etip.h)
2110 cf_save_CXXFLAGS="$CXXFLAGS"
2111 cf_result="none"
2112
2113 # etip.h includes ncurses.h which includes ncurses_dll.h
2114 # But ncurses_dll.h is generated - fix here.
2115 test -d include || mkdir include
2116 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
2117
2118 for cf_math in "" MATH_H
2119 do
2120 for cf_excp in "" MATH_EXCEPTION
2121 do
2122         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
2123         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
2124         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
2125 AC_TRY_COMPILE([
2126 #include <etip.h.in>
2127 ],[],[
2128         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
2129         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
2130         cf_result="$cf_math $cf_excp"
2131         break 2
2132 ],[])
2133 done
2134 done
2135 AC_MSG_RESULT($cf_result)
2136 CXXFLAGS="$cf_save_CXXFLAGS"
2137 ])
2138 dnl ---------------------------------------------------------------------------
2139 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
2140 dnl ---------------
2141 dnl Find a library (specifically the linkage used in the code fragment),
2142 dnl searching for it if it is not already in the library path.
2143 dnl See also CF_ADD_SEARCHPATH.
2144 dnl
2145 dnl Parameters (4-on are optional):
2146 dnl     $1 = headers for library entrypoint
2147 dnl     $2 = code fragment for library entrypoint
2148 dnl     $3 = the library name without the "-l" option or ".so" suffix.
2149 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
2150 dnl     $5 = action to perform if not successful
2151 dnl     $6 = module name, if not the same as the library name
2152 dnl     $7 = extra libraries
2153 dnl
2154 dnl Sets these variables:
2155 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
2156 dnl     $cf_cv_header_path_$3 - include-directory if needed
2157 dnl     $cf_cv_library_path_$3 - library-directory if needed
2158 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
2159 AC_DEFUN([CF_FIND_LINKAGE],[
2160
2161 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
2162 # will be set on completion of the AC_TRY_LINK below.
2163 cf_cv_header_path_$3=
2164 cf_cv_library_path_$3=
2165
2166 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
2167
2168 cf_save_LIBS="$LIBS"
2169
2170 AC_TRY_LINK([$1],[$2],[
2171         cf_cv_find_linkage_$3=yes
2172         cf_cv_header_path_$3=/usr/include
2173         cf_cv_library_path_$3=/usr/lib
2174 ],[
2175
2176 LIBS="-l$3 $7 $cf_save_LIBS"
2177
2178 AC_TRY_LINK([$1],[$2],[
2179         cf_cv_find_linkage_$3=yes
2180         cf_cv_header_path_$3=/usr/include
2181         cf_cv_library_path_$3=/usr/lib
2182         cf_cv_library_file_$3="-l$3"
2183 ],[
2184         cf_cv_find_linkage_$3=no
2185         LIBS="$cf_save_LIBS"
2186
2187         CF_VERBOSE(find linkage for $3 library)
2188         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
2189
2190         cf_save_CPPFLAGS="$CPPFLAGS"
2191         cf_test_CPPFLAGS="$CPPFLAGS"
2192
2193         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2194         for cf_cv_header_path_$3 in $cf_search
2195         do
2196                 if test -d "$cf_cv_header_path_$3" ; then
2197                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2198                         CPPFLAGS="$cf_save_CPPFLAGS"
2199                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2200                         AC_TRY_COMPILE([$1],[$2],[
2201                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2202                                 cf_cv_find_linkage_$3=maybe
2203                                 cf_test_CPPFLAGS="$CPPFLAGS"
2204                                 break],[
2205                                 CPPFLAGS="$cf_save_CPPFLAGS"
2206                                 ])
2207                 fi
2208         done
2209
2210         if test "$cf_cv_find_linkage_$3" = maybe ; then
2211
2212                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2213
2214                 cf_save_LIBS="$LIBS"
2215                 cf_save_LDFLAGS="$LDFLAGS"
2216
2217                 ifelse([$6],,,[
2218                 CPPFLAGS="$cf_test_CPPFLAGS"
2219                 LIBS="-l$3 $7 $cf_save_LIBS"
2220                 AC_TRY_LINK([$1],[$2],[
2221                         CF_VERBOSE(... found $3 library in system)
2222                         cf_cv_find_linkage_$3=yes])
2223                         CPPFLAGS="$cf_save_CPPFLAGS"
2224                         LIBS="$cf_save_LIBS"
2225                         ])
2226
2227                 if test "$cf_cv_find_linkage_$3" != yes ; then
2228                         CF_LIBRARY_PATH(cf_search,$3)
2229                         for cf_cv_library_path_$3 in $cf_search
2230                         do
2231                                 if test -d "$cf_cv_library_path_$3" ; then
2232                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2233                                         CPPFLAGS="$cf_test_CPPFLAGS"
2234                                         LIBS="-l$3 $7 $cf_save_LIBS"
2235                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2236                                         AC_TRY_LINK([$1],[$2],[
2237                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2238                                         cf_cv_find_linkage_$3=yes
2239                                         cf_cv_library_file_$3="-l$3"
2240                                         break],[
2241                                         CPPFLAGS="$cf_save_CPPFLAGS"
2242                                         LIBS="$cf_save_LIBS"
2243                                         LDFLAGS="$cf_save_LDFLAGS"
2244                                         ])
2245                                 fi
2246                         done
2247                         CPPFLAGS="$cf_save_CPPFLAGS"
2248                         LDFLAGS="$cf_save_LDFLAGS"
2249                 fi
2250
2251         else
2252                 cf_cv_find_linkage_$3=no
2253         fi
2254         ],$7)
2255 ])
2256
2257 LIBS="$cf_save_LIBS"
2258
2259 if test "$cf_cv_find_linkage_$3" = yes ; then
2260 ifelse([$4],,[
2261         CF_ADD_INCDIR($cf_cv_header_path_$3)
2262         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2263         CF_ADD_LIB($3)
2264 ],[$4])
2265 else
2266 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2267 fi
2268 ])dnl
2269 dnl ---------------------------------------------------------------------------
2270 dnl CF_FIND_SUB_INCDIR version: 3 updated: 2021/01/01 13:31:04
2271 dnl ------------------
2272 dnl Find an include-directory with the given leaf-name.  This is useful for
2273 dnl example with FreeBSD ports, which use this convention to distinguish
2274 dnl different versions of the same port.
2275 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2276         CF_SUBDIR_PATH(cf_search,$1,include)
2277         for cf_item in $cf_search
2278         do
2279                 case "$cf_item" in
2280                 (*/$1)
2281                         CF_ADD_INCDIR($cf_item)
2282                         ;;
2283                 esac
2284         done
2285 ])dnl
2286 dnl ---------------------------------------------------------------------------
2287 dnl CF_FIND_SUB_LIBDIR version: 3 updated: 2021/01/01 13:31:04
2288 dnl ------------------
2289 dnl Find a library-directory with the given leaf-name.  This is useful for
2290 dnl example with FreeBSD ports, which use this convention to distinguish
2291 dnl different versions of the same port.
2292 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2293         CF_SUBDIR_PATH(cf_search,$1,lib)
2294         for cf_item in $cf_search
2295         do
2296                 case "$cf_item" in
2297                 (*/$1)
2298                         CF_ADD_LIBDIR($cf_item)
2299                         ;;
2300                 esac
2301         done
2302 ])dnl
2303 dnl ---------------------------------------------------------------------------
2304 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2305 dnl -----------------
2306 dnl make ADAFLAGS consistent with CFLAGS
2307 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2308         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2309         case "$CFLAGS" in
2310         (*-g*)
2311                 CF_ADD_ADAFLAGS(-g)
2312                 ;;
2313         esac
2314         case "$CFLAGS" in
2315         (*-O*)
2316                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2317                 CF_ADD_ADAFLAGS($cf_O_flag)
2318                 ;;
2319         esac
2320         AC_MSG_RESULT($ADAFLAGS)
2321 ])dnl
2322 dnl ---------------------------------------------------------------------------
2323 dnl CF_FIX_WARNINGS version: 3 updated: 2020/12/31 18:40:20
2324 dnl ---------------
2325 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc.  Any of gcc's
2326 dnl "-Werror" flags can interfere with configure-checks.  Those go into
2327 dnl EXTRA_CFLAGS.
2328 dnl
2329 dnl $1 = variable name to repair
2330 define([CF_FIX_WARNINGS],[
2331 if test "$GCC" = yes || test "$GXX" = yes
2332 then
2333         case [$]$1 in
2334         (*-Werror=*)
2335                 CF_VERBOSE(repairing $1: [$]$1)
2336                 cf_temp_flags=
2337                 for cf_temp_scan in [$]$1
2338                 do
2339                         case "x$cf_temp_scan" in
2340                         (x-Werror=*)
2341                                 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
2342                                 ;;
2343                         (*)
2344                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
2345                                 ;;
2346                         esac
2347                 done
2348                 $1="$cf_temp_flags"
2349                 CF_VERBOSE(... fixed [$]$1)
2350                 CF_VERBOSE(... extra $EXTRA_CFLAGS)
2351                 ;;
2352         esac
2353 fi
2354 AC_SUBST(EXTRA_CFLAGS)
2355 ])dnl
2356 dnl ---------------------------------------------------------------------------
2357 dnl CF_FOPEN_BIN_R version: 2 updated: 2019/12/31 08:53:54
2358 dnl --------------
2359 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2360 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2361 dnl systems do not accept it.
2362 AC_DEFUN([CF_FOPEN_BIN_R],[
2363 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2364         AC_TRY_RUN([
2365 #include <stdio.h>
2366 int main(void) {
2367         FILE *fp = fopen("conftest.tmp", "wb");
2368         int rc = 0;
2369         if (fp != 0) {
2370                 int p, q;
2371                 for (p = 0; p < 256; ++p) {
2372                         fputc(p, fp);
2373                 }
2374                 fclose(fp);
2375                 fp = fopen("conftest.tmp", "rb");
2376                 if (fp != 0) {
2377                         for (p = 0; p < 256; ++p) {
2378                                 q = fgetc(fp);
2379                                 if (q != p) {
2380                                         rc = 1;
2381                                         break;
2382                                 }
2383                         }
2384                 } else {
2385                         rc = 1;
2386                 }
2387         } else {
2388                 rc = 1;
2389         }
2390         ${cf_cv_main_return:-return} (rc);
2391 }
2392 ],
2393                 [cf_cv_fopen_bin_r=yes],
2394                 [cf_cv_fopen_bin_r=no],
2395                 [cf_cv_fopen_bin_r=unknown])
2396 ])
2397 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R,1,[Define to 1 if fopen accepts explicit binary mode])
2398 ])dnl
2399 dnl ---------------------------------------------------------------------------
2400 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2401 dnl --------------
2402 dnl Forget that we saw the given tool.
2403 AC_DEFUN([CF_FORGET_TOOL],[
2404 unset ac_cv_prog_ac_ct_$1
2405 unset ac_ct_$1
2406 unset $1
2407 ])dnl
2408 dnl ---------------------------------------------------------------------------
2409 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2410 dnl -------------
2411 dnl Test for dlsym() and related functions, as well as libdl.
2412 dnl
2413 dnl Sets
2414 dnl     $cf_have_dlsym
2415 dnl     $cf_have_libdl
2416 AC_DEFUN([CF_FUNC_DLSYM],[
2417 cf_have_dlsym=no
2418 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2419
2420 cf_have_libdl=no
2421 AC_CHECK_LIB(dl,dlsym,[
2422         cf_have_dlsym=yes
2423         cf_have_libdl=yes])])
2424
2425 if test "$cf_have_dlsym" = yes ; then
2426         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2427
2428         AC_MSG_CHECKING(whether able to link to dl*() functions)
2429         AC_TRY_LINK([#include <dlfcn.h>],[
2430                 void *obj;
2431                 if ((obj = dlopen("filename", 0)) != 0) {
2432                         if (dlsym(obj, "symbolname") == 0) {
2433                         dlclose(obj);
2434                         }
2435                 }],[
2436                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2437                 AC_MSG_ERROR(Cannot link test program for libdl)])
2438         AC_MSG_RESULT(ok)
2439 else
2440         AC_MSG_ERROR(Cannot find dlsym function)
2441 fi
2442 ])
2443 dnl ---------------------------------------------------------------------------
2444 dnl CF_FUNC_MEMMOVE version: 9 updated: 2017/01/21 11:06:25
2445 dnl ---------------
2446 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2447 dnl is found, add our own version of memmove to the list of objects.
2448 AC_DEFUN([CF_FUNC_MEMMOVE],
2449 [
2450 AC_CHECK_FUNC(memmove,,[
2451 AC_CHECK_FUNC(bcopy,[
2452         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2453                 AC_TRY_RUN([
2454 int main(void) {
2455         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2456         char temp[40];
2457         bcopy(data, temp, sizeof(data));
2458         bcopy(temp+10, temp, 15);
2459         bcopy(temp+5, temp+15, 10);
2460         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2461 }
2462                 ],
2463                 [cf_cv_good_bcopy=yes],
2464                 [cf_cv_good_bcopy=no],
2465                 [cf_cv_good_bcopy=unknown])
2466                 ])
2467         ],[cf_cv_good_bcopy=no])
2468         if test "$cf_cv_good_bcopy" = yes ; then
2469                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2470         else
2471                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2472         fi
2473 ])])dnl
2474 dnl ---------------------------------------------------------------------------
2475 dnl CF_FUNC_NANOSLEEP version: 5 updated: 2017/01/21 11:06:25
2476 dnl -----------------
2477 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2478 dnl AIX 4.x, provide a non-working version.
2479 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2480 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2481 AC_TRY_RUN([
2482 #include <stdio.h>
2483 #include <errno.h>
2484 #include <time.h>
2485
2486 #ifdef HAVE_SYS_TIME_H
2487 #include <sys/time.h>
2488 #endif
2489
2490 int main(void) {
2491         struct timespec ts1, ts2;
2492         int code;
2493         ts1.tv_sec  = 0;
2494         ts1.tv_nsec = 750000000;
2495         ts2.tv_sec  = 0;
2496         ts2.tv_nsec = 0;
2497         errno = 0;
2498         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2499         ${cf_cv_main_return:-return}(code != 0);
2500 }
2501 ],
2502         [cf_cv_func_nanosleep=yes],
2503         [cf_cv_func_nanosleep=no],
2504         [cf_cv_func_nanosleep=unknown])])
2505
2506 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2507 ])
2508 dnl ---------------------------------------------------------------------------
2509 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
2510 dnl ---------------
2511 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2512 dnl "util" library as well.
2513 AC_DEFUN([CF_FUNC_OPENPTY],
2514 [
2515 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2516 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2517         cf_save_LIBS="$LIBS"
2518         test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
2519         for cf_header in pty.h libutil.h util.h
2520         do
2521         AC_TRY_LINK([
2522 #include <$cf_header>
2523 ],[
2524         int x = openpty((int *)0, (int *)0, (char *)0,
2525                                    (struct termios *)0, (struct winsize *)0);
2526 ],[
2527                 cf_cv_func_openpty=$cf_header
2528                 break
2529 ],[
2530                 cf_cv_func_openpty=no
2531 ])
2532         done
2533         LIBS="$cf_save_LIBS"
2534 ])
2535 ])dnl
2536 dnl ---------------------------------------------------------------------------
2537 dnl CF_FUNC_POLL version: 10 updated: 2021/01/04 19:13:57
2538 dnl ------------
2539 dnl See if the poll function really works.  Some platforms have poll(), but
2540 dnl it does not work for terminals or files.
2541 AC_DEFUN([CF_FUNC_POLL],[
2542 tty >/dev/null 2>&1 || { AC_CHECK_FUNCS(posix_openpt) }
2543 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2544 AC_TRY_RUN([
2545 #include <stdlib.h>
2546 #include <stdio.h>
2547 #include <unistd.h>
2548 #include <fcntl.h>
2549 #ifdef HAVE_POLL_H
2550 #include <poll.h>
2551 #else
2552 #include <sys/poll.h>
2553 #endif
2554 int main(void) {
2555         struct pollfd myfds;
2556         int ret;
2557
2558         /* check for Darwin bug with respect to "devices" */
2559         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2560         if (myfds.fd < 0)
2561                 myfds.fd = 0;
2562         myfds.events = POLLIN;
2563         myfds.revents = 0;
2564
2565         ret = poll(&myfds, 1, 100);
2566
2567         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2568                 ret = -1;
2569         } else {
2570                 int fd = 0;
2571                 if (!isatty(fd)) {
2572                         fd = open("/dev/tty", 2);       /* O_RDWR */
2573                 }
2574 #ifdef HAVE_POSIX_OPENPT
2575                 if (fd < 0) {
2576                         fd = posix_openpt(O_RDWR);
2577                 }
2578 #endif
2579
2580                 if (fd >= 0) {
2581                         /* also check with standard input */
2582                         myfds.fd = fd;
2583                         myfds.events = POLLIN;
2584                         myfds.revents = 0;
2585                         ret = poll(&myfds, 1, 100);
2586                 } else {
2587                         ret = -1;
2588                 }
2589         }
2590         ${cf_cv_main_return:-return}(ret < 0);
2591 }],
2592         [cf_cv_working_poll=yes],
2593         [cf_cv_working_poll=no],
2594         [cf_cv_working_poll=unknown])])
2595 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2596 ])dnl
2597 dnl ---------------------------------------------------------------------------
2598 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2599 dnl ---------------
2600 dnl Some old/broken variations define tcgetattr() only as a macro in
2601 dnl termio(s).h
2602 AC_DEFUN([CF_FUNC_TERMIOS],[
2603 AC_REQUIRE([CF_STRUCT_TERMIOS])
2604 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2605 AC_TRY_LINK([
2606 #include <sys/types.h>
2607 #ifdef HAVE_UNISTD_H
2608 #include <unistd.h>
2609 #endif
2610 #ifdef HAVE_TERMIOS_H
2611 #include <termios.h>
2612 #define TTY struct termios
2613 #else
2614 #ifdef HAVE_TERMIO_H
2615 #include <termio.h>
2616 #define TTY struct termio
2617 #endif
2618 #endif
2619 ],[
2620 TTY foo;
2621 tcgetattr(1, &foo);],
2622 [cf_cv_have_tcgetattr=yes],
2623 [cf_cv_have_tcgetattr=no])])
2624 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2625 ])dnl
2626 dnl ---------------------------------------------------------------------------
2627 dnl CF_FUNC_VSSCANF version: 7 updated: 2021/01/01 13:31:04
2628 dnl ---------------
2629 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2630 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2631 dnl other functions.
2632 AC_DEFUN([CF_FUNC_VSSCANF],
2633 [
2634 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2635 AC_TRY_LINK([
2636 #include <stdarg.h>
2637 #include <stdio.h>],[
2638         va_list ap;
2639         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2640 AC_TRY_LINK([
2641 #include <stdarg.h>
2642 #include <stdio.h>],[
2643         FILE strbuf;
2644         char *str = "from";
2645
2646         strbuf._flag = _IOREAD;
2647         strbuf._ptr = strbuf._base = (unsigned char *) str;
2648         strbuf._cnt = strlen(str);
2649         strbuf._file = _NFILE;
2650         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2651 AC_TRY_LINK([
2652 #include <stdarg.h>
2653 #include <stdio.h>],[
2654         FILE strbuf;
2655         char *str = "from";
2656
2657         strbuf._flag = _IOREAD;
2658         strbuf._ptr = strbuf._base = (unsigned char *) str;
2659         strbuf._cnt = strlen(str);
2660         strbuf._file = _NFILE;
2661         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2662 cf_cv_func_vsscanf=no])])])])
2663
2664 case "$cf_cv_func_vsscanf" in
2665 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2666 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2667 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2668 esac
2669
2670 ])dnl
2671 dnl ---------------------------------------------------------------------------
2672 dnl CF_GCC_ATTRIBUTES version: 23 updated: 2021/01/03 18:30:50
2673 dnl -----------------
2674 dnl Test for availability of useful gcc __attribute__ directives to quiet
2675 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2676 dnl to documentation, unrecognized directives cause older compilers to barf.
2677 AC_DEFUN([CF_GCC_ATTRIBUTES],
2678 [AC_REQUIRE([AC_PROG_FGREP])dnl
2679
2680 if test "$GCC" = yes || test "$GXX" = yes
2681 then
2682 cat > conftest.i <<EOF
2683 #ifndef GCC_PRINTF
2684 #define GCC_PRINTF 0
2685 #endif
2686 #ifndef GCC_SCANF
2687 #define GCC_SCANF 0
2688 #endif
2689 #ifndef GCC_NORETURN
2690 #define GCC_NORETURN /* nothing */
2691 #endif
2692 #ifndef GCC_UNUSED
2693 #define GCC_UNUSED /* nothing */
2694 #endif
2695 EOF
2696 if test "$GCC" = yes
2697 then
2698         AC_CHECKING([for $CC __attribute__ directives])
2699 cat > "conftest.$ac_ext" <<EOF
2700 #line __oline__ "${as_me:-configure}"
2701 #include "confdefs.h"
2702 #include "conftest.h"
2703 #include "conftest.i"
2704 #if     GCC_PRINTF
2705 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2706 #else
2707 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2708 #endif
2709 #if     GCC_SCANF
2710 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2711 #else
2712 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2713 #endif
2714 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2715 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
2716 extern void foo(void) GCC_NORETURN;
2717 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
2718 EOF
2719         cf_printf_attribute=no
2720         cf_scanf_attribute=no
2721         for cf_attribute in scanf printf unused noreturn
2722         do
2723                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2724                 cf_directive="__attribute__(($cf_attribute))"
2725                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2726
2727                 case "$cf_attribute" in
2728                 (printf)
2729                         cf_printf_attribute=yes
2730                         cat >conftest.h <<EOF
2731 #define GCC_$cf_ATTRIBUTE 1
2732 EOF
2733                         ;;
2734                 (scanf)
2735                         cf_scanf_attribute=yes
2736                         cat >conftest.h <<EOF
2737 #define GCC_$cf_ATTRIBUTE 1
2738 EOF
2739                         ;;
2740                 (*)
2741                         cat >conftest.h <<EOF
2742 #define GCC_$cf_ATTRIBUTE $cf_directive
2743 EOF
2744                         ;;
2745                 esac
2746
2747                 if AC_TRY_EVAL(ac_compile); then
2748                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2749                         cat conftest.h >>confdefs.h
2750                         case "$cf_attribute" in
2751                         (noreturn)
2752                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2753                                 ;;
2754                         (printf)
2755                                 cf_value='/* nothing */'
2756                                 if test "$cf_printf_attribute" != no ; then
2757                                         cf_value='__attribute__((format(printf,fmt,var)))'
2758                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2759                                 fi
2760                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2761                                 ;;
2762                         (scanf)
2763                                 cf_value='/* nothing */'
2764                                 if test "$cf_scanf_attribute" != no ; then
2765                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2766                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2767                                 fi
2768                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2769                                 ;;
2770                         (unused)
2771                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2772                                 ;;
2773                         esac
2774                 fi
2775         done
2776 else
2777         ${FGREP-fgrep} define conftest.i >>confdefs.h
2778 fi
2779 rm -rf ./conftest*
2780 fi
2781 ])dnl
2782 dnl ---------------------------------------------------------------------------
2783 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
2784 dnl --------------
2785 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
2786 dnl compatible), attempt to determine if icc/clang is actually used.
2787 AC_DEFUN([CF_GCC_VERSION],[
2788 AC_REQUIRE([AC_PROG_CC])
2789 GCC_VERSION=none
2790 if test "$GCC" = yes ; then
2791         AC_MSG_CHECKING(version of $CC)
2792         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2793         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2794         AC_MSG_RESULT($GCC_VERSION)
2795 fi
2796 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2797 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2798 ])dnl
2799 dnl ---------------------------------------------------------------------------
2800 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
2801 dnl ---------------
2802 dnl Check if the compiler supports useful warning options.  There's a few that
2803 dnl we don't use, simply because they're too noisy:
2804 dnl
2805 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2806 dnl     -Winline (usually not worthwhile)
2807 dnl     -Wredundant-decls (system headers make this too noisy)
2808 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2809 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2810 dnl             is enabled for ncurses using "--enable-const".
2811 dnl     -pedantic
2812 dnl
2813 dnl Parameter:
2814 dnl     $1 is an optional list of gcc warning flags that a particular
2815 dnl             application might want to use, e.g., "no-unused" for
2816 dnl             -Wno-unused
2817 dnl Special:
2818 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2819 dnl
2820 AC_DEFUN([CF_GCC_WARNINGS],
2821 [
2822 AC_REQUIRE([CF_GCC_VERSION])
2823 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
2824 cat > "conftest.$ac_ext" <<EOF
2825 #line __oline__ "${as_me:-configure}"
2826 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2827 EOF
2828 if test "$INTEL_COMPILER" = yes
2829 then
2830 # The "-wdXXX" options suppress warnings:
2831 # remark #1419: external declaration in primary source file
2832 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2833 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2834 # remark #193: zero used for undefined preprocessing identifier
2835 # remark #593: variable "curs_sb_left_arrow" was set but never used
2836 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2837 # remark #869: parameter "tw" was never referenced
2838 # remark #981: operands are evaluated in unspecified order
2839 # warning #279: controlling expression is constant
2840
2841         AC_CHECKING([for $CC warning options])
2842         cf_save_CFLAGS="$CFLAGS"
2843         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
2844         for cf_opt in \
2845                 wd1419 \
2846                 wd1683 \
2847                 wd1684 \
2848                 wd193 \
2849                 wd593 \
2850                 wd279 \
2851                 wd810 \
2852                 wd869 \
2853                 wd981
2854         do
2855                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2856                 if AC_TRY_EVAL(ac_compile); then
2857                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2858                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2859                 fi
2860         done
2861         CFLAGS="$cf_save_CFLAGS"
2862 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
2863 then
2864         AC_CHECKING([for $CC warning options])
2865         cf_save_CFLAGS="$CFLAGS"
2866         cf_warn_CONST=""
2867         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2868         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2869         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2870         for cf_opt in W Wall \
2871                 Wbad-function-cast \
2872                 Wcast-align \
2873                 Wcast-qual \
2874                 Wdeclaration-after-statement \
2875                 Wextra \
2876                 Winline \
2877                 Wmissing-declarations \
2878                 Wmissing-prototypes \
2879                 Wnested-externs \
2880                 Wpointer-arith \
2881                 Wshadow \
2882                 Wstrict-prototypes \
2883                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
2884         do
2885                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2886                 if AC_TRY_EVAL(ac_compile); then
2887                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2888                         case "$cf_opt" in
2889                         (Winline)
2890                                 case "$GCC_VERSION" in
2891                                 ([[34]].*)
2892                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2893                                         continue;;
2894                                 esac
2895                                 ;;
2896                         (Wpointer-arith)
2897                                 case "$GCC_VERSION" in
2898                                 ([[12]].*)
2899                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2900                                         continue;;
2901                                 esac
2902                                 ;;
2903                         esac
2904                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2905                 fi
2906         done
2907         CFLAGS="$cf_save_CFLAGS"
2908 fi
2909 rm -rf ./conftest*
2910
2911 AC_SUBST(EXTRA_CFLAGS)
2912 ])dnl
2913 dnl ---------------------------------------------------------------------------
2914 dnl CF_GETOPT_HEADER version: 7 updated: 2021/01/01 13:31:04
2915 dnl ----------------
2916 dnl Check for getopt's variables which are commonly defined in stdlib.h,
2917 dnl unistd.h or (nonstandard) in getopt.h
2918 AC_DEFUN([CF_GETOPT_HEADER],
2919 [
2920 AC_HAVE_HEADERS(unistd.h getopt.h)
2921 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
2922 cf_cv_getopt_header=none
2923 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2924 do
2925 AC_TRY_COMPILE([
2926 #include <$cf_header>],
2927 [int x = optind; char *y = optarg],
2928 [cf_cv_getopt_header=$cf_header
2929  break])
2930 done
2931 ])
2932 if test "$cf_cv_getopt_header" != none ; then
2933         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2934 fi
2935 if test "$cf_cv_getopt_header" = getopt.h ; then
2936         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2937 fi
2938 ])dnl
2939 dnl ---------------------------------------------------------------------------
2940 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
2941 dnl -----------------
2942 AC_DEFUN([CF_GNATPREP_OPT_T],[
2943 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
2944 cf_cv_gnatprep_opt_t=no
2945 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
2946 ])
2947 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
2948 AC_SUBST(GNATPREP_OPTS)
2949 ])dnl
2950 dnl ---------------------------------------------------------------------------
2951 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
2952 dnl ----------------
2953 AC_DEFUN([CF_GNAT_GENERICS],
2954 [
2955 AC_REQUIRE([CF_GNAT_VERSION])
2956
2957 AC_MSG_CHECKING(if GNAT supports generics)
2958 case "$cf_cv_gnat_version" in
2959 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
2960         cf_gnat_generics=yes
2961         ;;
2962 (*)
2963         cf_gnat_generics=no
2964         ;;
2965 esac
2966 AC_MSG_RESULT($cf_gnat_generics)
2967
2968 if test "$cf_gnat_generics" = yes
2969 then
2970         cf_compile_generics=generics
2971         cf_generic_objects="\${GENOBJS}"
2972 else
2973         cf_compile_generics=
2974         cf_generic_objects=
2975 fi
2976
2977 AC_SUBST(cf_compile_generics)
2978 AC_SUBST(cf_generic_objects)
2979 ])dnl
2980 dnl ---------------------------------------------------------------------------
2981 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
2982 dnl ----------------
2983 dnl GNAT projects are configured with ".gpr" project files.
2984 dnl GNAT libraries are a further development, using the project feature.
2985 AC_DEFUN([CF_GNAT_PROJECTS],
2986 [
2987 AC_REQUIRE([CF_GNAT_VERSION])
2988 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
2989
2990 cf_gnat_libraries=no
2991 cf_gnat_projects=no
2992
2993 if test "$enable_gnat_projects" != no ; then
2994 AC_MSG_CHECKING(if GNAT supports project files)
2995 case "$cf_cv_gnat_version" in
2996 (3.[[0-9]]*)
2997         ;;
2998 (*)
2999         case "$cf_cv_system_name" in
3000         (cygwin*|msys*)
3001                 ;;
3002         (*)
3003                 rm -rf ./conftest* ./*~conftest*
3004                 if mkdir conftest.src conftest.bin conftest.lib
3005                 then
3006                         cd conftest.src
3007                         rm -rf ./conftest* ./*~conftest*
3008                         cat >>library.gpr <<CF_EOF
3009 project Library is
3010   Kind := External ("LIB_KIND");
3011   for Library_Name use "ConfTest";
3012   for Object_Dir use ".";
3013   for Library_ALI_Dir use External("LIBRARY_DIR");
3014   for Library_Version use External ("SONAME");
3015   for Library_Kind use Kind;
3016   for Library_Dir use External("BUILD_DIR");
3017   Source_Dir := External ("SOURCE_DIR");
3018   for Source_Dirs use (Source_Dir);
3019 end Library;
3020 CF_EOF
3021                         cat >>confpackage.ads <<CF_EOF
3022 package ConfPackage is
3023    procedure conftest;
3024 end ConfPackage;
3025 CF_EOF
3026                         cat >>confpackage.adb <<CF_EOF
3027 with Text_IO;
3028 package body ConfPackage is
3029    procedure conftest is
3030    begin
3031       Text_IO.Put ("Hello World");
3032       Text_IO.New_Line;
3033    end conftest;
3034 end ConfPackage;
3035 CF_EOF
3036                         if ( "$cf_ada_make" $ADAFLAGS \
3037                                         -Plibrary.gpr \
3038                                         -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
3039                                         -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
3040                                         -XSOURCE_DIR="`pwd`" \
3041                                         -XSONAME=libConfTest.so.1 \
3042                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
3043                                 cf_gnat_projects=yes
3044                         fi
3045                         cd ..
3046                 fi
3047                 if test -f conftest.lib/confpackage.ali
3048                 then
3049                         cf_gnat_libraries=yes
3050                 fi
3051                 rm -rf ./conftest* ./*~conftest*
3052                 ;;
3053         esac
3054         ;;
3055 esac
3056 AC_MSG_RESULT($cf_gnat_projects)
3057 fi # enable_gnat_projects
3058
3059 if test "$cf_gnat_projects" = yes
3060 then
3061         AC_MSG_CHECKING(if GNAT supports libraries)
3062         AC_MSG_RESULT($cf_gnat_libraries)
3063 fi
3064
3065 USE_OLD_MAKERULES=""
3066 USE_GNAT_PROJECTS="#"
3067 USE_GNAT_MAKE_GPR="#"
3068 USE_GNAT_GPRBUILD="#"
3069
3070 if test "$cf_gnat_projects" = yes
3071 then
3072         USE_OLD_MAKERULES="#"
3073         USE_GNAT_PROJECTS=""
3074         if test "$cf_cv_VERSION_GPRBUILD" != no
3075         then
3076                 USE_GNAT_GPRBUILD=""
3077         elif test "$cf_cv_VERSION_GNATMAKE" != no
3078         then
3079                 USE_GNAT_MAKE_GPR=""
3080         else
3081                 AC_MSG_WARN(use old makefile rules since tools are missing)
3082         fi
3083 fi
3084
3085 if test "$cf_gnat_libraries" = yes
3086 then
3087         USE_GNAT_LIBRARIES=""
3088 else
3089         USE_GNAT_LIBRARIES="#"
3090 fi
3091
3092 AC_SUBST(USE_OLD_MAKERULES)
3093 AC_SUBST(USE_GNAT_PROJECTS)
3094 AC_SUBST(USE_GNAT_LIBRARIES)
3095 AC_SUBST(USE_GNAT_MAKE_GPR)
3096 AC_SUBST(USE_GNAT_GPRBUILD)
3097 ])dnl
3098 dnl ---------------------------------------------------------------------------
3099 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
3100 dnl --------------
3101 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
3102 dnl is noted that gnat may compile a tasking unit even for configurations which
3103 dnl fail at runtime.
3104 AC_DEFUN([CF_GNAT_SIGINT],[
3105 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
3106 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
3107
3108 package ConfTest is
3109
3110    pragma Warnings (Off);  --  the next pragma exists since 3.11p
3111    pragma Unreserve_All_Interrupts;
3112    pragma Warnings (On);
3113
3114    protected Process is
3115       procedure Stop;
3116       function Continue return Boolean;
3117       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
3118    private
3119       Done : Boolean := False;
3120    end Process;
3121
3122 end ConfTest;],
3123 [package body ConfTest is
3124    protected body Process is
3125       procedure Stop is
3126       begin
3127          Done := True;
3128       end Stop;
3129       function Continue return Boolean is
3130       begin
3131          return not Done;
3132       end Continue;
3133    end Process;
3134 end ConfTest;],
3135         [cf_cv_gnat_sigint=yes],
3136         [cf_cv_gnat_sigint=no])])
3137
3138 if test "$cf_cv_gnat_sigint" = yes ; then
3139         USE_GNAT_SIGINT=""
3140 else
3141         USE_GNAT_SIGINT="#"
3142 fi
3143 AC_SUBST(USE_GNAT_SIGINT)
3144 ])dnl
3145 dnl ---------------------------------------------------------------------------
3146 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
3147 dnl ----------------
3148 dnl Verify that a test program compiles/links with GNAT.
3149 dnl $cf_ada_make is set to the program that compiles/links
3150 dnl $ADAFLAGS may be set to the GNAT flags.
3151 dnl
3152 dnl $1 is the text of the spec
3153 dnl $2 is the text of the body
3154 dnl $3 is the shell command to execute if successful
3155 dnl $4 is the shell command to execute if not successful
3156 AC_DEFUN([CF_GNAT_TRY_LINK],
3157 [
3158 rm -rf ./conftest* ./*~conftest*
3159 cat >>conftest.ads <<CF_EOF
3160 $1
3161 CF_EOF
3162 cat >>conftest.adb <<CF_EOF
3163 $2
3164 CF_EOF
3165 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3166 ifelse($3,,      :,[      $3])
3167 ifelse($4,,,[else
3168    $4])
3169 fi
3170 rm -rf ./conftest* ./*~conftest*
3171 ])dnl
3172 dnl ---------------------------------------------------------------------------
3173 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
3174 dnl ---------------
3175 dnl Verify that a test program compiles and runs with GNAT
3176 dnl $cf_ada_make is set to the program that compiles/links
3177 dnl $ADAFLAGS may be set to the GNAT flags.
3178 dnl
3179 dnl $1 is the text of the spec
3180 dnl $2 is the text of the body
3181 dnl $3 is the shell command to execute if successful
3182 dnl $4 is the shell command to execute if not successful
3183 AC_DEFUN([CF_GNAT_TRY_RUN],
3184 [
3185 rm -rf ./conftest* ./*~conftest*
3186 cat >>conftest.ads <<CF_EOF
3187 $1
3188 CF_EOF
3189 cat >>conftest.adb <<CF_EOF
3190 $2
3191 CF_EOF
3192 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3193    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
3194 ifelse($3,,      :,[      $3])
3195 ifelse($4,,,[   else
3196       $4])
3197    fi
3198 ifelse($4,,,[else
3199    $4])
3200 fi
3201 rm -rf ./conftest* ./*~conftest*
3202 ])dnl
3203 dnl ---------------------------------------------------------------------------
3204 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
3205 dnl ---------------
3206 dnl $1 = cache variable to update
3207 dnl $2 = program name
3208 dnl Verify version of GNAT or related tool
3209 AC_DEFUN([CF_GNAT_VERSION],
3210 [
3211 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3212 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3213         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3214         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3215 ])
3216 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3217 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3218 ])dnl
3219 dnl ---------------------------------------------------------------------------
3220 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3221 dnl -------------
3222 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3223 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3224 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3225 dnl since it is interwoven with GNU extensions.
3226 dnl
3227 dnl Well, yes we could work around it...
3228 dnl
3229 dnl Parameters:
3230 dnl     $1 is the nominal value for _XOPEN_SOURCE
3231 AC_DEFUN([CF_GNU_SOURCE],
3232 [
3233 cf_gnu_xopen_source=ifelse($1,,500,$1)
3234
3235 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3236 AC_TRY_COMPILE([#include <sys/types.h>],[
3237         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3238                 return 0;
3239         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3240                 return 0;
3241         #else
3242         #       error not GNU C library
3243         #endif],
3244         [cf_cv_gnu_library=yes],
3245         [cf_cv_gnu_library=no])
3246 ])
3247
3248 if test x$cf_cv_gnu_library = xyes; then
3249
3250         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3251         # was changed to help a little.  newlib incorporated the change about 4
3252         # years later.
3253         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3254                 cf_save="$CPPFLAGS"
3255                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3256                 AC_TRY_COMPILE([#include <sys/types.h>],[
3257                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3258                                 return 0;
3259                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3260                                 return 0;
3261                         #else
3262                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3263                         #endif],
3264                         [cf_cv_gnu_library_219=yes],
3265                         [cf_cv_gnu_library_219=no])
3266                 CPPFLAGS="$cf_save"
3267         ])
3268
3269         if test "x$cf_cv_gnu_library_219" = xyes; then
3270                 cf_save="$CPPFLAGS"
3271                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3272                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3273                         AC_TRY_COMPILE([
3274                                 #include <limits.h>
3275                                 #include <sys/types.h>
3276                                 ],[
3277                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3278                                         return 0;
3279                                 #else
3280                                 #       error GNU C library is too old
3281                                 #endif],
3282                                 [cf_cv_gnu_dftsrc_219=yes],
3283                                 [cf_cv_gnu_dftsrc_219=no])
3284                         ])
3285                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3286         else
3287                 cf_cv_gnu_dftsrc_219=maybe
3288         fi
3289
3290         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3291
3292                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3293                 AC_TRY_COMPILE([#include <sys/types.h>],[
3294                         #ifndef _XOPEN_SOURCE
3295                         #error  expected _XOPEN_SOURCE to be defined
3296                         #endif],
3297                         [cf_cv_gnu_source=no],
3298                         [cf_save="$CPPFLAGS"
3299                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3300                          AC_TRY_COMPILE([#include <sys/types.h>],[
3301                                 #ifdef _XOPEN_SOURCE
3302                                 #error  expected _XOPEN_SOURCE to be undefined
3303                                 #endif],
3304                                 [cf_cv_gnu_source=no],
3305                                 [cf_cv_gnu_source=yes])
3306                         CPPFLAGS="$cf_save"
3307                         ])
3308                 ])
3309
3310                 if test "$cf_cv_gnu_source" = yes
3311                 then
3312                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3313                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3314                         AC_TRY_COMPILE([#include <sys/types.h>],[
3315                                 #ifdef _DEFAULT_SOURCE
3316                                 #error  expected _DEFAULT_SOURCE to be undefined
3317                                 #endif],
3318                                 [cf_cv_default_source=no],
3319                                 [cf_cv_default_source=yes])
3320                         ])
3321                         if test "$cf_cv_default_source" = yes
3322                         then
3323                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3324                         fi
3325                 fi
3326         fi
3327
3328 fi
3329 ])dnl
3330 dnl ---------------------------------------------------------------------------
3331 dnl CF_GPP_LIBRARY version: 13 updated: 2021/01/01 13:31:04
3332 dnl --------------
3333 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3334 dnl problem :-).  If we have the compiler but no library, we'll be able to
3335 dnl configure, but won't be able to build the c++ demo program.
3336 AC_DEFUN([CF_GPP_LIBRARY],
3337 [
3338 cf_cxx_library=unknown
3339 case "$cf_cv_system_name" in
3340 (os2*)
3341         cf_gpp_libname=gpp
3342         ;;
3343 (*)
3344         cf_gpp_libname=g++
3345         ;;
3346 esac
3347 if test "$GXX" = yes; then
3348         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3349         cf_save="$LIBS"
3350         CF_ADD_LIB($cf_gpp_libname)
3351         AC_TRY_LINK([
3352 #include <$cf_gpp_libname/builtin.h>
3353         ],
3354         [two_arg_error_handler_t foo2 = lib_error_handler],
3355         [cf_cxx_library=yes
3356          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3357          if test "$cf_gpp_libname" = cpp ; then
3358             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3359          else
3360             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3361          fi],
3362         [AC_TRY_LINK([
3363 #include <builtin.h>
3364         ],
3365         [two_arg_error_handler_t foo2 = lib_error_handler],
3366         [cf_cxx_library=yes
3367          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3368          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3369         [cf_cxx_library=no])])
3370         LIBS="$cf_save"
3371         AC_MSG_RESULT($cf_cxx_library)
3372 fi
3373 ])dnl
3374 dnl ---------------------------------------------------------------------------
3375 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3376 dnl --------------
3377 dnl Check for version of g++
3378 AC_DEFUN([CF_GXX_VERSION],[
3379 AC_REQUIRE([AC_PROG_CPP])
3380 GXX_VERSION=none
3381 if test "$GXX" = yes; then
3382         AC_MSG_CHECKING(version of ${CXX:-g++})
3383         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3384         if test -z "$GXX_VERSION"
3385         then
3386                 GXX_VERSION=unknown
3387                 GXX=no
3388         fi
3389         AC_MSG_RESULT($GXX_VERSION)
3390 fi
3391 ])dnl
3392 dnl ---------------------------------------------------------------------------
3393 dnl CF_GXX_WARNINGS version: 11 updated: 2021/01/08 16:50:55
3394 dnl ---------------
3395 dnl Check if the compiler supports useful warning options.
3396 dnl
3397 dnl Most of gcc's options apply to g++, except:
3398 dnl     -Wbad-function-cast
3399 dnl     -Wmissing-declarations
3400 dnl     -Wnested-externs
3401 dnl
3402 dnl Omit a few (for now):
3403 dnl     -Winline
3404 dnl
3405 dnl Parameter:
3406 dnl     $1 is an optional list of g++ warning flags that a particular
3407 dnl             application might want to use, e.g., "no-unused" for
3408 dnl             -Wno-unused
3409 dnl Special:
3410 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3411 dnl
3412 AC_DEFUN([CF_GXX_WARNINGS],
3413 [
3414
3415 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3416 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3417
3418 AC_REQUIRE([CF_GXX_VERSION])
3419
3420 AC_LANG_SAVE
3421 AC_LANG_CPLUSPLUS
3422
3423 cat > conftest.$ac_ext <<EOF
3424 #line __oline__ "configure"
3425 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3426 EOF
3427
3428 if test "$INTEL_CPLUSPLUS" = yes
3429 then
3430 # The "-wdXXX" options suppress warnings:
3431 # remark #1419: external declaration in primary source file
3432 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3433 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3434 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3435 # remark #193: zero used for undefined preprocessing identifier
3436 # remark #593: variable "curs_sb_left_arrow" was set but never used
3437 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3438 # remark #869: parameter "tw" was never referenced
3439 # remark #981: operands are evaluated in unspecified order
3440 # warning #269: invalid format string conversion
3441
3442         AC_CHECKING([for $CC warning options])
3443         cf_save_CXXFLAGS="$CXXFLAGS"
3444         EXTRA_CXXFLAGS="-Wall"
3445         for cf_opt in \
3446                 wd1419 \
3447                 wd1682 \
3448                 wd1683 \
3449                 wd1684 \
3450                 wd193 \
3451                 wd279 \
3452                 wd593 \
3453                 wd810 \
3454                 wd869 \
3455                 wd981
3456         do
3457                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3458                 if AC_TRY_EVAL(ac_compile); then
3459                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3460                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3461                 fi
3462         done
3463         CXXFLAGS="$cf_save_CXXFLAGS"
3464
3465 elif test "$GXX" = yes
3466 then
3467         AC_CHECKING([for $CXX warning options])
3468         cf_save_CXXFLAGS="$CXXFLAGS"
3469         EXTRA_CXXFLAGS="-W -Wall"
3470         cf_gxx_extra_warnings=""
3471         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3472         case "$GXX_VERSION" in
3473         ([[1-2]].*)
3474                 ;;
3475         (*)
3476                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3477                 ;;
3478         esac
3479         for cf_opt in \
3480                 Wabi \
3481                 fabi-version=0 \
3482                 Wextra \
3483                 Wignored-qualifiers \
3484                 Wlogical-op \
3485                 Woverloaded-virtual \
3486                 Wsign-promo \
3487                 Wsynth \
3488                 Wold-style-cast \
3489                 Wcast-align \
3490                 Wcast-qual \
3491                 Wpointer-arith \
3492                 Wshadow \
3493                 Wundef $cf_gxx_extra_warnings $1
3494         do
3495                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3496                 if AC_TRY_EVAL(ac_compile); then
3497                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3498                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3499                 else
3500                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3501                 fi
3502         done
3503         CXXFLAGS="$cf_save_CXXFLAGS"
3504 fi
3505
3506 rm -rf ./conftest*
3507 AC_LANG_RESTORE
3508 AC_SUBST(EXTRA_CXXFLAGS)
3509 ])dnl
3510 dnl ---------------------------------------------------------------------------
3511 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3512 dnl ------------
3513 dnl Look for an instance of the Berkeley hashed database.
3514 dnl
3515 dnl $1 = optional parameter, to specify install-prefix for the database.
3516 AC_DEFUN([CF_HASHED_DB],
3517 [
3518 ifelse([$1],,,[
3519 case $1 in
3520 (yes|*able*)
3521         ;;
3522 (*)
3523         if test -d "$1" ; then
3524                 CF_ADD_INCDIR($1/include)
3525                 CF_ADD_LIBDIR($1/lib)
3526         else
3527                 case "$1" in
3528                 (./*|../*|/*)
3529                         AC_MSG_WARN(no such directory $1)
3530                         ;;
3531                 (*)
3532                         CF_FIND_SUB_INCDIR($1)
3533                         CF_FIND_SUB_LIBDIR($1)
3534                         ;;
3535                 esac
3536         fi
3537 esac
3538 ])
3539 AC_CHECK_HEADER(db.h,[
3540 CF_HASHED_DB_VERSION
3541 if test "$cf_cv_hashed_db_version" = unknown ; then
3542         AC_MSG_ERROR(Cannot determine version of db)
3543 else
3544         CF_HASHED_DB_LIBS
3545         if test "$cf_cv_hashed_db_libs" = unknown ; then
3546                 AC_MSG_ERROR(Cannot determine library for db)
3547         elif test "$cf_cv_hashed_db_libs" != default ; then
3548                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3549         fi
3550 fi
3551 ],[
3552         AC_MSG_ERROR(Cannot find db.h)
3553 ])
3554 ])dnl
3555 dnl ---------------------------------------------------------------------------
3556 dnl CF_HASHED_DB_LIBS version: 10 updated: 2021/01/02 17:09:14
3557 dnl -----------------
3558 dnl Given that we have the header and version for hashed database, find the
3559 dnl library information.
3560 AC_DEFUN([CF_HASHED_DB_LIBS],
3561 [
3562 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3563 cf_cv_hashed_db_libs=unknown
3564 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3565 do
3566         cf_save_libs="$LIBS"
3567         if test -n "$cf_db_libs"; then
3568                 CF_ADD_LIB($cf_db_libs)
3569         fi
3570         CF_MSG_LOG(checking for library $cf_db_libs)
3571         AC_TRY_LINK([
3572 $ac_includes_default
3573 #include <db.h>
3574 ],[
3575         char *path = "/tmp/foo";
3576 #ifdef DB_VERSION_MAJOR
3577 #if DB_VERSION_MAJOR >= 4
3578         DB *result = 0;
3579         db_create(&result, NULL, 0);
3580         result->open(result,
3581                 NULL,
3582                 path,
3583                 path,
3584                 DB_HASH,
3585                 DB_CREATE,
3586                 0644);
3587 #elif DB_VERSION_MAJOR >= 3
3588         DB *result = 0;
3589         db_create(&result, NULL, 0);
3590         result->open(result,
3591                 path,
3592                 path,
3593                 DB_HASH,
3594                 DB_CREATE,
3595                 0644);
3596 #elif DB_VERSION_MAJOR >= 2
3597         DB *result = 0;
3598         db_open(path,
3599                 DB_HASH,
3600                 DB_CREATE,
3601                 0644,
3602                 (DB_ENV *) 0,
3603                 (DB_INFO *) 0,
3604                 &result);
3605 #endif /* DB_VERSION_MAJOR */
3606 #else
3607         DB *result = dbopen(path,
3608                      2,
3609                      0644,
3610                      DB_HASH,
3611                      0);
3612 #endif
3613         ${cf_cv_main_return:-return}(result != 0)
3614 ],[
3615         if test -n "$cf_db_libs" ; then
3616                 cf_cv_hashed_db_libs=$cf_db_libs
3617         else
3618                 cf_cv_hashed_db_libs=default
3619         fi
3620         LIBS="$cf_save_libs"
3621         break
3622 ])
3623         LIBS="$cf_save_libs"
3624 done
3625 ])
3626 ])dnl
3627 dnl ---------------------------------------------------------------------------
3628 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3629 dnl --------------------
3630 dnl Given that we have the header file for hashed database, find the version
3631 dnl information.
3632 AC_DEFUN([CF_HASHED_DB_VERSION],
3633 [
3634 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3635 cf_cv_hashed_db_version=unknown
3636
3637 for cf_db_version in 1 2 3 4 5 6
3638 do
3639         CF_MSG_LOG(checking for db version $cf_db_version)
3640         AC_TRY_COMPILE([
3641 $ac_includes_default
3642 #include <db.h>
3643
3644 #ifdef DB_VERSION_MAJOR
3645         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3646 #if $cf_db_version == DB_VERSION_MAJOR
3647         /* ok */
3648 #else
3649         make an error
3650 #endif
3651 #else
3652 #if $cf_db_version == 1
3653         /* ok: assuming this is DB 1.8.5 */
3654 #else
3655         make an error
3656 #endif
3657 #endif
3658 ],[DBT *foo = 0],[
3659         cf_cv_hashed_db_version=$cf_db_version
3660         break
3661         ])
3662 done
3663 ])
3664 ])dnl
3665 dnl ---------------------------------------------------------------------------
3666 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
3667 dnl --------------
3668 dnl Construct a search-list of directories for a nonstandard header-file
3669 dnl
3670 dnl Parameters
3671 dnl     $1 = the variable to return as result
3672 dnl     $2 = the package name
3673 AC_DEFUN([CF_HEADER_PATH],
3674 [
3675 $1=
3676
3677 # collect the current set of include-directories from compiler flags
3678 cf_header_path_list=""
3679 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3680         for cf_header_path in $CPPFLAGS $CFLAGS
3681         do
3682                 case "$cf_header_path" in
3683                 (-I*)
3684                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3685                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3686                         cf_header_path_list="$cf_header_path_list [$]$1"
3687                         ;;
3688                 esac
3689         done
3690 fi
3691
3692 # add the variations for the package we are looking for
3693 CF_SUBDIR_PATH($1,$2,include)
3694
3695 test "$includedir" != NONE && \
3696 test "$includedir" != "/usr/include" && \
3697 test -d "$includedir" && {
3698         test -d "$includedir" &&    $1="[$]$1 $includedir"
3699         test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
3700 }
3701
3702 test "$oldincludedir" != NONE && \
3703 test "$oldincludedir" != "/usr/include" && \
3704 test -d "$oldincludedir" && {
3705         test -d "$oldincludedir"    && $1="[$]$1 $oldincludedir"
3706         test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
3707 }
3708
3709 $1="[$]$1 $cf_header_path_list"
3710 ])dnl
3711 dnl ---------------------------------------------------------------------------
3712 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
3713 dnl ---------------
3714 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3715 AC_DEFUN([CF_HELP_MESSAGE],
3716 [CF_ACVERSION_CHECK(2.53,[],[
3717 AC_DIVERT_HELP($1)])dnl
3718 ])dnl
3719 dnl ---------------------------------------------------------------------------
3720 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3721 dnl ---------------
3722 dnl Construct the list of include-options according to whether we're building
3723 dnl in the source directory or using '--srcdir=DIR' option.
3724 AC_DEFUN([CF_INCLUDE_DIRS],
3725 [
3726 if test "$srcdir" != "."; then
3727         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3728 fi
3729 CPPFLAGS="-I../include $CPPFLAGS"
3730 if test "$srcdir" != "."; then
3731         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3732 fi
3733 CPPFLAGS="-I. $CPPFLAGS"
3734 AC_SUBST(CPPFLAGS)
3735 ])dnl
3736 dnl ---------------------------------------------------------------------------
3737 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
3738 dnl ---------------
3739 dnl prompt for/fill-in useful install-program options
3740 AC_DEFUN([CF_INSTALL_OPTS],
3741 [
3742 CF_INSTALL_OPT_S
3743 CF_INSTALL_OPT_P
3744 CF_INSTALL_OPT_O
3745 ])dnl
3746 dnl ---------------------------------------------------------------------------
3747 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
3748 dnl ----------------
3749 dnl Almost all "install" programs default to the current user's ownership.
3750 dnl Almost - MINIX is an exception.
3751 AC_DEFUN([CF_INSTALL_OPT_O],
3752 [
3753 AC_MSG_CHECKING(if install needs to be told about ownership)
3754 case `$ac_config_guess` in
3755 (*minix)
3756         with_install_o=yes