Ada95/aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2019,2020 Thomas E. Dickey                                *
   3 dnl Copyright 2010-2017,2018 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
  31 dnl
  32 dnl $Id: aclocal.m4,v 1.155 2020/03/20 00:23:48 tom Exp $
  33 dnl Macros used in NCURSES Ada95 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 CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
  46 dnl ------------------
  47 dnl Conditionally generate script according to whether we're using a given autoconf.
  48 dnl
  49 dnl $1 = version to compare against
  50 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
  51 dnl $3 = code to use if AC_ACVERSION is older than $1.
  52 define([CF_ACVERSION_CHECK],
  53 [
  54 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
  55 ifdef([m4_version_compare],
  56 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
  57 [CF_ACVERSION_COMPARE(
  58 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
  59 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
  60 dnl ---------------------------------------------------------------------------
  61 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
  62 dnl --------------------
  63 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
  64 dnl                      MAJOR2, MINOR2, TERNARY2,
  65 dnl                      PRINTABLE2, not FOUND, FOUND)
  66 define([CF_ACVERSION_COMPARE],
  67 [ifelse(builtin([eval], [$2 < $5]), 1,
  68 [ifelse([$8], , ,[$8])],
  69 [ifelse([$9], , ,[$9])])])dnl
  70 dnl ---------------------------------------------------------------------------
  71 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
  72 dnl -------------------
  73 dnl Construct the list of include-options for the C programs in the Ada95
  74 dnl binding.
  75 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
  76 [
  77 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
  78 if test "$srcdir" != "."; then
  79         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
  80 fi
  81 if test "$GCC" != yes; then
  82         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  83 elif test "$includedir" != "/usr/include"; then
  84         if test "$includedir" = '${prefix}/include' ; then
  85                 if test x$prefix != x/usr ; then
  86                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  87                 fi
  88         else
  89                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  90         fi
  91 fi
  92 AC_SUBST(ACPPFLAGS)
  93 ])dnl
  94 dnl ---------------------------------------------------------------------------
  95 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
  96 dnl ---------------
  97 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
  98 AC_DEFUN([CF_ADD_ADAFLAGS],[
  99         ADAFLAGS="$ADAFLAGS $1"
 100         AC_SUBST(ADAFLAGS)
 101 ])dnl
 102 dnl ---------------------------------------------------------------------------
 103 dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
 104 dnl -------------
 105 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 106 dnl The second parameter if given makes this macro verbose.
 107 dnl
 108 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 109 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 110 dnl confused by the quotes (which require backslashes to keep them usable).
 111 AC_DEFUN([CF_ADD_CFLAGS],
 112 [
 113 cf_fix_cppflags=no
 114 cf_new_cflags=
 115 cf_new_cppflags=
 116 cf_new_extra_cppflags=
 117
 118 for cf_add_cflags in $1
 119 do
 120 case $cf_fix_cppflags in
 121 (no)
 122         case $cf_add_cflags in
 123         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 124                 case $cf_add_cflags in
 125                 (-D*)
 126                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 127
 128                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 129                                 && test -z "${cf_tst_cflags}" \
 130                                 && cf_fix_cppflags=yes
 131
 132                         if test $cf_fix_cppflags = yes ; then
 133                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 134                                 continue
 135                         elif test "${cf_tst_cflags}" = "\"'" ; then
 136                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 137                                 continue
 138                         fi
 139                         ;;
 140                 esac
 141                 case "$CPPFLAGS" in
 142                 (*$cf_add_cflags)
 143                         ;;
 144                 (*)
 145                         case $cf_add_cflags in
 146                         (-D*)
 147                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 148                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 149                                 ;;
 150                         esac
 151                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 152                         ;;
 153                 esac
 154                 ;;
 155         (*)
 156                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 157                 ;;
 158         esac
 159         ;;
 160 (yes)
 161         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 162
 163         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
 164
 165         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 166                 && test -z "${cf_tst_cflags}" \
 167                 && cf_fix_cppflags=no
 168         ;;
 169 esac
 170 done
 171
 172 if test -n "$cf_new_cflags" ; then
 173         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 174         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 175 fi
 176
 177 if test -n "$cf_new_cppflags" ; then
 178         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 179         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 180 fi
 181
 182 if test -n "$cf_new_extra_cppflags" ; then
 183         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 184         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 185 fi
 186
 187 AC_SUBST(EXTRA_CPPFLAGS)
 188
 189 ])dnl
 190 dnl ---------------------------------------------------------------------------
 191 dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
 192 dnl -------------
 193 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 194 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 195 dnl but old versions (and some misinstalled ones) need that.  To make things
 196 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 197 dnl the include-path).
 198 AC_DEFUN([CF_ADD_INCDIR],
 199 [
 200 if test -n "$1" ; then
 201   for cf_add_incdir in $1
 202   do
 203         while test $cf_add_incdir != /usr/include
 204         do
 205           if test -d $cf_add_incdir
 206           then
 207                 cf_have_incdir=no
 208                 if test -n "$CFLAGS$CPPFLAGS" ; then
 209                   # a loop is needed to ensure we can add subdirs of existing dirs
 210                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 211                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 212                           cf_have_incdir=yes; break
 213                         fi
 214                   done
 215                 fi
 216
 217                 if test "$cf_have_incdir" = no ; then
 218                   if test "$cf_add_incdir" = /usr/local/include ; then
 219                         if test "$GCC" = yes
 220                         then
 221                           cf_save_CPPFLAGS=$CPPFLAGS
 222                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 223                           AC_TRY_COMPILE([#include <stdio.h>],
 224                                   [printf("Hello")],
 225                                   [],
 226                                   [cf_have_incdir=yes])
 227                           CPPFLAGS=$cf_save_CPPFLAGS
 228                         fi
 229                   fi
 230                 fi
 231
 232                 if test "$cf_have_incdir" = no ; then
 233                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 234                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 235
 236                   cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
 237                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 238                   cf_add_incdir="$cf_top_incdir"
 239                 else
 240                   break
 241                 fi
 242           else
 243                 break
 244           fi
 245         done
 246   done
 247 fi
 248 ])dnl
 249 dnl ---------------------------------------------------------------------------
 250 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 251 dnl ----------
 252 dnl Add a library, used to enforce consistency.
 253 dnl
 254 dnl $1 = library to add, without the "-l"
 255 dnl $2 = variable to update (default $LIBS)
 256 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 257 dnl ---------------------------------------------------------------------------
 258 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
 259 dnl -------------
 260 dnl     Adds to the library-path
 261 dnl
 262 dnl     Some machines have trouble with multiple -L options.
 263 dnl
 264 dnl $1 is the (list of) directory(s) to add
 265 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 266 dnl
 267 AC_DEFUN([CF_ADD_LIBDIR],
 268 [
 269 if test -n "$1" ; then
 270         for cf_add_libdir in $1
 271         do
 272                 if test $cf_add_libdir = /usr/lib ; then
 273                         :
 274                 elif test -d $cf_add_libdir
 275                 then
 276                         cf_have_libdir=no
 277                         if test -n "$LDFLAGS$LIBS" ; then
 278                                 # a loop is needed to ensure we can add subdirs of existing dirs
 279                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 280                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 281                                                 cf_have_libdir=yes; break
 282                                         fi
 283                                 done
 284                         fi
 285                         if test "$cf_have_libdir" = no ; then
 286                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 287                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 288                         fi
 289                 fi
 290         done
 291 fi
 292 ])dnl
 293 dnl ---------------------------------------------------------------------------
 294 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 295 dnl -----------
 296 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 297 dnl prepended to an existing list, since their dependencies are assumed to
 298 dnl already exist in the list.
 299 dnl
 300 dnl $1 = libraries to add, with the "-l", etc.
 301 dnl $2 = variable to update (default $LIBS)
 302 AC_DEFUN([CF_ADD_LIBS],[
 303 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 304 # reverse order
 305 cf_add_0lib=
 306 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 307 # filter duplicates
 308 for cf_add_1lib in $cf_add_0lib; do
 309         for cf_add_2lib in $cf_add_libs; do
 310                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 311                         cf_add_1lib=
 312                         break
 313                 fi
 314         done
 315         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 316 done
 317 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 318 ])dnl
 319 dnl ---------------------------------------------------------------------------
 320 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
 321 dnl ------------------
 322 dnl Append to a search-list for a nonstandard header/lib-file
 323 dnl     $1 = the variable to return as result
 324 dnl     $2 = the package name
 325 dnl     $3 = the subdirectory, e.g., bin, include or lib
 326 dnl $4 = the directory under which we will test for subdirectories
 327 dnl $5 = a directory that we do not want $4 to match
 328 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 329 [
 330 test "x$4" != "x$5" && \
 331 test -d "$4" && \
 332 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
 333         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 334         test -d $4/$3 &&          $1="[$]$1 $4/$3"
 335         test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
 336         test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
 337         test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
 338         test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
 339 }
 340 ])dnl
 341 dnl ---------------------------------------------------------------------------
 342 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 343 dnl --------------
 344 dnl use this macro for appending text without introducing an extra blank at
 345 dnl the beginning
 346 define([CF_APPEND_TEXT],
 347 [
 348         test -n "[$]$1" && $1="[$]$1 "
 349         $1="[$]{$1}$2"
 350 ])dnl
 351 dnl ---------------------------------------------------------------------------
 352 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 353 dnl --------------
 354 dnl Allow user to disable a normally-on option.
 355 AC_DEFUN([CF_ARG_DISABLE],
 356 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 357 dnl ---------------------------------------------------------------------------
 358 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 359 dnl -------------
 360 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 361 dnl values.
 362 dnl
 363 dnl Parameters:
 364 dnl $1 = option name
 365 dnl $2 = help-string
 366 dnl $3 = action to perform if option is not default
 367 dnl $4 = action if perform if option is default
 368 dnl $5 = default option value (either 'yes' or 'no')
 369 AC_DEFUN([CF_ARG_OPTION],
 370 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 371         if test "$enableval" != "$5" ; then
 372 ifelse([$3],,[    :]dnl
 373 ,[    $3]) ifelse([$4],,,[
 374         else
 375                 $4])
 376         fi],[enableval=$5 ifelse([$4],,,[
 377         $4
 378 ])dnl
 379 ])])dnl
 380 dnl ---------------------------------------------------------------------------
 381 dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
 382 dnl -----------
 383 dnl Check for suitable "ar" (archiver) options for updating an archive.
 384 dnl
 385 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 386 dnl as well as a workaround for breakage of make's archive rules by the GNU
 387 dnl binutils "ar" program.
 388 AC_DEFUN([CF_AR_FLAGS],[
 389 AC_REQUIRE([CF_PROG_AR])
 390
 391 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 392         cf_cv_ar_flags=unknown
 393         for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 394         do
 395
 396                 # check if $ARFLAGS already contains this choice
 397                 if test "x$ARFLAGS" != "x" ; then
 398                         cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 399                         if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 400                                 cf_cv_ar_flags=
 401                                 break
 402                         fi
 403                 fi
 404
 405                 rm -f conftest.$ac_cv_objext
 406                 rm -f conftest.a
 407
 408                 cat >conftest.$ac_ext <<EOF
 409 #line __oline__ "configure"
 410 int     testdata[[3]] = { 123, 456, 789 };
 411 EOF
 412                 if AC_TRY_EVAL(ac_compile) ; then
 413                         echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 414                         $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
 415                         if test -f conftest.a ; then
 416                                 cf_cv_ar_flags=$cf_ar_flags
 417                                 break
 418                         fi
 419                 else
 420                         CF_VERBOSE(cannot compile test-program)
 421                         break
 422                 fi
 423         done
 424         rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
 425 ])
 426
 427 if test -n "$ARFLAGS" ; then
 428         if test -n "$cf_cv_ar_flags" ; then
 429                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 430         fi
 431 else
 432         ARFLAGS=$cf_cv_ar_flags
 433 fi
 434
 435 AC_SUBST(ARFLAGS)
 436 ])
 437 dnl ---------------------------------------------------------------------------
 438 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
 439 dnl -----------
 440 dnl If we're cross-compiling, allow the user to override the tools and their
 441 dnl options.  The configure script is oriented toward identifying the host
 442 dnl compiler, etc., but we need a build compiler to generate parts of the
 443 dnl source.
 444 dnl
 445 dnl $1 = default for $CPPFLAGS
 446 dnl $2 = default for $LIBS
 447 AC_DEFUN([CF_BUILD_CC],[
 448 CF_ACVERSION_CHECK(2.52,,
 449         [AC_REQUIRE([CF_PROG_EXT])])
 450 if test "$cross_compiling" = yes ; then
 451
 452         # defaults that we might want to override
 453         : ${BUILD_CFLAGS:=''}
 454         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 455         : ${BUILD_LDFLAGS:=''}
 456         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 457         : ${BUILD_EXEEXT:='$x'}
 458         : ${BUILD_OBJEXT:='o'}
 459
 460         AC_ARG_WITH(build-cc,
 461                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 462                 [BUILD_CC="$withval"],
 463                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 464         AC_MSG_CHECKING(for native build C compiler)
 465         AC_MSG_RESULT($BUILD_CC)
 466
 467         AC_MSG_CHECKING(for native build C preprocessor)
 468         AC_ARG_WITH(build-cpp,
 469                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 470                 [BUILD_CPP="$withval"],
 471                 [BUILD_CPP='${BUILD_CC} -E'])
 472         AC_MSG_RESULT($BUILD_CPP)
 473
 474         AC_MSG_CHECKING(for native build C flags)
 475         AC_ARG_WITH(build-cflags,
 476                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 477                 [BUILD_CFLAGS="$withval"])
 478         AC_MSG_RESULT($BUILD_CFLAGS)
 479
 480         AC_MSG_CHECKING(for native build C preprocessor-flags)
 481         AC_ARG_WITH(build-cppflags,
 482                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 483                 [BUILD_CPPFLAGS="$withval"])
 484         AC_MSG_RESULT($BUILD_CPPFLAGS)
 485
 486         AC_MSG_CHECKING(for native build linker-flags)
 487         AC_ARG_WITH(build-ldflags,
 488                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 489                 [BUILD_LDFLAGS="$withval"])
 490         AC_MSG_RESULT($BUILD_LDFLAGS)
 491
 492         AC_MSG_CHECKING(for native build linker-libraries)
 493         AC_ARG_WITH(build-libs,
 494                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 495                 [BUILD_LIBS="$withval"])
 496         AC_MSG_RESULT($BUILD_LIBS)
 497
 498         # this assumes we're on Unix.
 499         BUILD_EXEEXT=
 500         BUILD_OBJEXT=o
 501
 502         : ${BUILD_CC:='${CC}'}
 503
 504         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
 505                 AC_MSG_ERROR([Cross-build requires two compilers.
 506 Use --with-build-cc to specify the native compiler.])
 507         fi
 508
 509 else
 510         : ${BUILD_CC:='${CC}'}
 511         : ${BUILD_CPP:='${CPP}'}
 512         : ${BUILD_CFLAGS:='${CFLAGS}'}
 513         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 514         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 515         : ${BUILD_LIBS:='${LIBS}'}
 516         : ${BUILD_EXEEXT:='$x'}
 517         : ${BUILD_OBJEXT:='o'}
 518 fi
 519
 520 AC_SUBST(BUILD_CC)
 521 AC_SUBST(BUILD_CPP)
 522 AC_SUBST(BUILD_CFLAGS)
 523 AC_SUBST(BUILD_CPPFLAGS)
 524 AC_SUBST(BUILD_LDFLAGS)
 525 AC_SUBST(BUILD_LIBS)
 526 AC_SUBST(BUILD_EXEEXT)
 527 AC_SUBST(BUILD_OBJEXT)
 528 ])dnl
 529 dnl ---------------------------------------------------------------------------
 530 dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
 531 dnl ---------------
 532 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 533 dnl into CC.  This will not help with broken scripts that wrap the compiler
 534 dnl with options, but eliminates a more common category of user confusion.
 535 dnl
 536 dnl In particular, it addresses the problem of being able to run the C
 537 dnl preprocessor in a consistent manner.
 538 dnl
 539 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 540 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 541 dnl outweighs that limitation.
 542 AC_DEFUN([CF_CC_ENV_FLAGS],
 543 [
 544 # This should have been defined by AC_PROG_CC
 545 : ${CC:=cc}
 546
 547 AC_MSG_CHECKING(\$CFLAGS variable)
 548 case "x$CFLAGS" in
 549 (*-[[IUD]]*)
 550         AC_MSG_RESULT(broken)
 551         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 552         cf_flags="$CFLAGS"
 553         CFLAGS=
 554         for cf_arg in $cf_flags
 555         do
 556                 CF_ADD_CFLAGS($cf_arg)
 557         done
 558         ;;
 559 (*)
 560         AC_MSG_RESULT(ok)
 561         ;;
 562 esac
 563
 564 AC_MSG_CHECKING(\$CC variable)
 565 case "$CC" in
 566 (*[[\ \ ]]-*)
 567         AC_MSG_RESULT(broken)
 568         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 569         # humor him...
 570         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 571         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 572         CC="$cf_prog"
 573         for cf_arg in $cf_flags
 574         do
 575                 case "x$cf_arg" in
 576                 (x-[[IUDfgOW]]*)
 577                         CF_ADD_CFLAGS($cf_arg)
 578                         ;;
 579                 (*)
 580                         CC="$CC $cf_arg"
 581                         ;;
 582                 esac
 583         done
 584         CF_VERBOSE(resulting CC: '$CC')
 585         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 586         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 587         ;;
 588 (*)
 589         AC_MSG_RESULT(ok)
 590         ;;
 591 esac
 592 ])dnl
 593 dnl ---------------------------------------------------------------------------
 594 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
 595 dnl ---------------
 596 dnl Determine the default configuration into which we'll install ncurses.  This
 597 dnl can be overridden by the user's command-line options.  There's two items to
 598 dnl look for:
 599 dnl     1. the prefix (e.g., /usr)
 600 dnl     2. the header files (e.g., /usr/include/ncurses)
 601 dnl We'll look for a previous installation of ncurses and use the same defaults.
 602 dnl
 603 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 604 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 605 dnl programs from a vendor's.
 606 AC_DEFUN([CF_CFG_DEFAULTS],
 607 [
 608 AC_MSG_CHECKING(for prefix)
 609 if test "x$prefix" = "xNONE" ; then
 610         case "$cf_cv_system_name" in
 611                 # non-vendor systems don't have a conflict
 612         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 613                 prefix=/usr
 614                 ;;
 615         (*)     prefix=$ac_default_prefix
 616                 ;;
 617         esac
 618 fi
 619 AC_MSG_RESULT($prefix)
 620
 621 if test "x$prefix" = "xNONE" ; then
 622 AC_MSG_CHECKING(for default include-directory)
 623 test -n "$verbose" && echo 1>&AC_FD_MSG
 624 for cf_symbol in \
 625         $includedir \
 626         $includedir/ncurses \
 627         $prefix/include \
 628         $prefix/include/ncurses \
 629         /usr/local/include \
 630         /usr/local/include/ncurses \
 631         /usr/include \
 632         /usr/include/ncurses
 633 do
 634         cf_dir=`eval echo $cf_symbol`
 635         if test -f $cf_dir/curses.h ; then
 636         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
 637                 includedir="$cf_symbol"
 638                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
 639                 break
 640         fi
 641         fi
 642         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 643 done
 644 AC_MSG_RESULT($includedir)
 645 fi
 646 ])dnl
 647 dnl ---------------------------------------------------------------------------
 648 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
 649 dnl --------------
 650 dnl Check if we're accidentally using a cache from a different machine.
 651 dnl Derive the system name, as a check for reusing the autoconf cache.
 652 dnl
 653 dnl If we've packaged config.guess and config.sub, run that (since it does a
 654 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 655 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 656 dnl which is useful in cross-compiles.
 657 dnl
 658 dnl Note: we would use $ac_config_sub, but that is one of the places where
 659 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 660 AC_DEFUN([CF_CHECK_CACHE],
 661 [
 662 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
 663         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 664         system_name="$host_os"
 665 else
 666         system_name="`(uname -s -r) 2>/dev/null`"
 667         if test -z "$system_name" ; then
 668                 system_name="`(hostname) 2>/dev/null`"
 669         fi
 670 fi
 671 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 672 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 673
 674 test -z "$system_name" && system_name="$cf_cv_system_name"
 675 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 676
 677 if test ".$system_name" != ".$cf_cv_system_name" ; then
 678         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 679         AC_MSG_ERROR("Please remove config.cache and try again.")
 680 fi
 681 ])dnl
 682 dnl ---------------------------------------------------------------------------
 683 dnl CF_CHECK_GNAT_VERSION version: 2 updated: 2019/12/31 08:53:54
 684 dnl ---------------------
 685 AC_DEFUN([CF_CHECK_GNAT_VERSION],
 686 [
 687 AC_REQUIRE([CF_GNAT_VERSION])
 688 case $cf_cv_gnat_version in
 689 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
 690         cf_cv_prog_gnat_correct=yes
 691         ;;
 692 (*)
 693         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
 694         cf_cv_prog_gnat_correct=no
 695         ;;
 696 esac
 697 ])
 698 dnl ---------------------------------------------------------------------------
 699 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
 700 dnl -----------------
 701 dnl Check if the given compiler is really clang.  clang's C driver defines
 702 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
 703 dnl not ignore some gcc options.
 704 dnl
 705 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
 706 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
 707 dnl the wrappers for gcc and g++ warnings.
 708 dnl
 709 dnl $1 = GCC (default) or GXX
 710 dnl $2 = CLANG_COMPILER (default)
 711 dnl $3 = CFLAGS (default) or CXXFLAGS
 712 AC_DEFUN([CF_CLANG_COMPILER],[
 713 ifelse([$2],,CLANG_COMPILER,[$2])=no
 714
 715 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 716         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
 717         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
 718         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
 719         AC_TRY_COMPILE([],[
 720 #ifdef __clang__
 721 #else
 722 make an error
 723 #endif
 724 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
 725 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
 726 ],[])
 727         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
 728         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
 729 fi
 730 ])
 731 dnl ---------------------------------------------------------------------------
 732 dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47
 733 dnl -----------------
 734 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 735 dnl character-strings.
 736 dnl
 737 dnl It is ambiguous because the specification accommodated the pre-ANSI
 738 dnl compilers bundled by more than one vendor in lieu of providing a standard C
 739 dnl compiler other than by costly add-ons.  Because of this, the specification
 740 dnl did not take into account the use of const for telling the compiler that
 741 dnl string literals would be in readonly memory.
 742 dnl
 743 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
 744 dnl let the compiler decide how to represent Xt's strings which were #define'd.
 745 dnl That does not solve the problem of using the block of Xt's strings which
 746 dnl are compiled into the library (and is less efficient than one might want).
 747 dnl
 748 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
 749 dnl when compiling the library and compiling using the library, to tell the
 750 dnl compiler that String is const.
 751 AC_DEFUN([CF_CONST_X_STRING],
 752 [
 753 AC_REQUIRE([AC_PATH_XTRA])
 754
 755 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
 756
 757 AC_TRY_COMPILE(
 758 [
 759 #include <stdlib.h>
 760 #include <X11/Intrinsic.h>
 761 ],
 762 [String foo = malloc(1); (void)foo],[
 763
 764 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
 765         AC_TRY_COMPILE(
 766                 [
 767 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
 768 #undef  XTSTRINGDEFINES /* X11R5 and later */
 769 #include <stdlib.h>
 770 #include <X11/Intrinsic.h>
 771                 ],[String foo = malloc(1); *foo = 0],[
 772                         cf_cv_const_x_string=no
 773                 ],[
 774                         cf_cv_const_x_string=yes
 775                 ])
 776 ])
 777
 778 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
 779
 780 case $cf_cv_const_x_string in
 781 (no)
 782         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
 783         ;;
 784 (*)
 785         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
 786         ;;
 787 esac
 788
 789 ])
 790 ])dnl
 791 dnl ---------------------------------------------------------------------------
 792 dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47
 793 dnl -----------------
 794 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 795 dnl character-strings.
 796 dnl
 797 dnl It is ambiguous because the specification accommodated the pre-ANSI
 798 dnl compilers bundled by more than one vendor in lieu of providing a standard C
 799 dnl compiler other than by costly add-ons.  Because of this, the specification
 800 dnl did not take into account the use of const for telling the compiler that
 801 dnl string literals would be in readonly memory.
 802 dnl
 803 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
 804 dnl let the compiler decide how to represent Xt's strings which were #define'd.
 805 dnl That does not solve the problem of using the block of Xt's strings which
 806 dnl are compiled into the library (and is less efficient than one might want).
 807 dnl
 808 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
 809 dnl when compiling the library and compiling using the library, to tell the
 810 dnl compiler that String is const.
 811 AC_DEFUN([CF_CONST_X_STRING],
 812 [
 813 AC_REQUIRE([AC_PATH_XTRA])
 814
 815 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
 816
 817 AC_TRY_COMPILE(
 818 [
 819 #include <stdlib.h>
 820 #include <X11/Intrinsic.h>
 821 ],
 822 [String foo = malloc(1); (void)foo],[
 823
 824 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
 825         AC_TRY_COMPILE(
 826                 [
 827 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
 828 #undef  XTSTRINGDEFINES /* X11R5 and later */
 829 #include <stdlib.h>
 830 #include <X11/Intrinsic.h>
 831                 ],[String foo = malloc(1); *foo = 0],[
 832                         cf_cv_const_x_string=no
 833                 ],[
 834                         cf_cv_const_x_string=yes
 835                 ])
 836 ])
 837
 838 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
 839
 840 case $cf_cv_const_x_string in
 841 (no)
 842         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
 843         ;;
 844 (*)
 845         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
 846         ;;
 847 esac
 848
 849 ])
 850 ])dnl
 851 dnl ---------------------------------------------------------------------------
 852 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
 853 dnl ----------------
 854 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 855 dnl variations of ncurses' installs.
 856 dnl
 857 dnl $1 = ncurses when looking for ncurses, or is empty
 858 AC_DEFUN([CF_CURSES_HEADER],[
 859 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
 860 cf_cv_ncurses_header=none
 861 for cf_header in \
 862         ncurses.h ifelse($1,,,[$1/ncurses.h]) \
 863         curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
 864 do
 865 AC_TRY_COMPILE([#include <${cf_header}>],
 866         [initscr(); tgoto("?", 0,0)],
 867         [cf_cv_ncurses_header=$cf_header; break],[])
 868 done
 869 ])
 870
 871 if test "$cf_cv_ncurses_header" = none ; then
 872         AC_MSG_ERROR(No curses header-files found)
 873 fi
 874
 875 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
 876 AC_CHECK_HEADERS($cf_cv_ncurses_header)
 877 ])dnl
 878 dnl ---------------------------------------------------------------------------
 879 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
 880 dnl ----------
 881 dnl "dirname" is not portable, so we fake it with a shell script.
 882 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
 883 dnl ---------------------------------------------------------------------------
 884 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
 885 dnl ---------------
 886 dnl You can always use "make -n" to see the actual options, but it's hard to
 887 dnl pick out/analyze warning messages when the compile-line is long.
 888 dnl
 889 dnl Sets:
 890 dnl     ECHO_LT - symbol to control if libtool is verbose
 891 dnl     ECHO_LD - symbol to prefix "cc -o" lines
 892 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
 893 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
 894 dnl     ECHO_CC - symbol to put before any "cc" line
 895 dnl
 896 AC_DEFUN([CF_DISABLE_ECHO],[
 897 AC_MSG_CHECKING(if you want to see long compiling messages)
 898 CF_ARG_DISABLE(echo,
 899         [  --disable-echo          do not display "compiling" commands],
 900         [
 901         ECHO_LT='--silent'
 902         ECHO_LD='@echo linking [$]@;'
 903         RULE_CC='@echo compiling [$]<'
 904         SHOW_CC='@echo compiling [$]@'
 905         ECHO_CC='@'
 906 ],[
 907         ECHO_LT=''
 908         ECHO_LD=''
 909         RULE_CC=''
 910         SHOW_CC=''
 911         ECHO_CC=''
 912 ])
 913 AC_MSG_RESULT($enableval)
 914 AC_SUBST(ECHO_LT)
 915 AC_SUBST(ECHO_LD)
 916 AC_SUBST(RULE_CC)
 917 AC_SUBST(SHOW_CC)
 918 AC_SUBST(ECHO_CC)
 919 ])dnl
 920 dnl ---------------------------------------------------------------------------
 921 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
 922 dnl ------------------------
 923 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
 924 AC_MSG_CHECKING(if we want to use GNAT projects)
 925 CF_ARG_DISABLE(gnat-projects,
 926         [  --disable-gnat-projects test: disable GNAT projects even if usable],
 927         [enable_gnat_projects=no],
 928         [enable_gnat_projects=yes])
 929 AC_MSG_RESULT($enable_gnat_projects)
 930 ])dnl
 931 dnl ---------------------------------------------------------------------------
 932 dnl CF_ENABLE_BROKEN_LINKER version: 1 updated: 2020/02/08 15:59:30
 933 dnl -----------------------
 934 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
 935 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
 936 dnl an unconditional feature.
 937 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
 938
 939 AC_MSG_CHECKING(if you want broken-linker support code)
 940 AC_ARG_ENABLE(broken_linker,
 941         [  --enable-broken_linker  compile with broken-linker support code],
 942         [with_broken_linker=$enableval],
 943         [with_broken_linker=no])
 944 AC_MSG_RESULT($with_broken_linker)
 945
 946 : ${BROKEN_LINKER:=0}
 947 if test "x$with_broken_linker" = xyes ; then
 948         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
 949         BROKEN_LINKER=1
 950 fi
 951 AC_SUBST(BROKEN_LINKER)
 952 ])dnl
 953 dnl ---------------------------------------------------------------------------
 954 dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54
 955 dnl ---------------
 956 dnl Look for a non-standard library, given parameters for AC_TRY_LINK.  We
 957 dnl prefer a standard location, and use -L options only if we do not find the
 958 dnl library in the standard library location(s).
 959 dnl     $1 = library name
 960 dnl     $2 = library class, usually the same as library name
 961 dnl     $3 = includes
 962 dnl     $4 = code fragment to compile/link
 963 dnl     $5 = corresponding function-name
 964 dnl     $6 = flag, nonnull if failure should not cause an error-exit
 965 dnl
 966 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
 967 dnl to use a -L option.
 968 AC_DEFUN([CF_FIND_LIBRARY],
 969 [
 970         eval 'cf_cv_have_lib_'$1'=no'
 971         cf_libdir=""
 972         AC_CHECK_FUNC($5,
 973                 eval 'cf_cv_have_lib_'$1'=yes',[
 974                 cf_save_LIBS="$LIBS"
 975                 AC_MSG_CHECKING(for $5 in -l$1)
 976                 LIBS="-l$1 $LIBS"
 977                 AC_TRY_LINK([$3],[$4],
 978                         [AC_MSG_RESULT(yes)
 979                          eval 'cf_cv_have_lib_'$1'=yes'
 980                         ],
 981                         [AC_MSG_RESULT(no)
 982                         CF_LIBRARY_PATH(cf_search,$2)
 983                         for cf_libdir in $cf_search
 984                         do
 985                                 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
 986                                 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
 987                                 AC_TRY_LINK([$3],[$4],
 988                                         [AC_MSG_RESULT(yes)
 989                                          eval 'cf_cv_have_lib_'$1'=yes'
 990                                          break],
 991                                         [AC_MSG_RESULT(no)
 992                                          LIBS="$cf_save_LIBS"])
 993                         done
 994                         ])
 995                 ])
 996 eval 'cf_found_library=[$]cf_cv_have_lib_'$1
 997 ifelse($6,,[
 998 if test $cf_found_library = no ; then
 999         AC_MSG_ERROR(Cannot link $1 library)
1000 fi
1001 ])
1002 ])dnl
1003 dnl ---------------------------------------------------------------------------
1004 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
1005 dnl ---------------
1006 dnl Find a library (specifically the linkage used in the code fragment),
1007 dnl searching for it if it is not already in the library path.
1008 dnl See also CF_ADD_SEARCHPATH.
1009 dnl
1010 dnl Parameters (4-on are optional):
1011 dnl     $1 = headers for library entrypoint
1012 dnl     $2 = code fragment for library entrypoint
1013 dnl     $3 = the library name without the "-l" option or ".so" suffix.
1014 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
1015 dnl     $5 = action to perform if not successful
1016 dnl     $6 = module name, if not the same as the library name
1017 dnl     $7 = extra libraries
1018 dnl
1019 dnl Sets these variables:
1020 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1021 dnl     $cf_cv_header_path_$3 - include-directory if needed
1022 dnl     $cf_cv_library_path_$3 - library-directory if needed
1023 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1024 AC_DEFUN([CF_FIND_LINKAGE],[
1025
1026 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1027 # will be set on completion of the AC_TRY_LINK below.
1028 cf_cv_header_path_$3=
1029 cf_cv_library_path_$3=
1030
1031 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1032
1033 cf_save_LIBS="$LIBS"
1034
1035 AC_TRY_LINK([$1],[$2],[
1036         cf_cv_find_linkage_$3=yes
1037         cf_cv_header_path_$3=/usr/include
1038         cf_cv_library_path_$3=/usr/lib
1039 ],[
1040
1041 LIBS="-l$3 $7 $cf_save_LIBS"
1042
1043 AC_TRY_LINK([$1],[$2],[
1044         cf_cv_find_linkage_$3=yes
1045         cf_cv_header_path_$3=/usr/include
1046         cf_cv_library_path_$3=/usr/lib
1047         cf_cv_library_file_$3="-l$3"
1048 ],[
1049         cf_cv_find_linkage_$3=no
1050         LIBS="$cf_save_LIBS"
1051
1052         CF_VERBOSE(find linkage for $3 library)
1053         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1054
1055         cf_save_CPPFLAGS="$CPPFLAGS"
1056         cf_test_CPPFLAGS="$CPPFLAGS"
1057
1058         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1059         for cf_cv_header_path_$3 in $cf_search
1060         do
1061                 if test -d $cf_cv_header_path_$3 ; then
1062                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
1063                         CPPFLAGS="$cf_save_CPPFLAGS"
1064                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1065                         AC_TRY_COMPILE([$1],[$2],[
1066                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1067                                 cf_cv_find_linkage_$3=maybe
1068                                 cf_test_CPPFLAGS="$CPPFLAGS"
1069                                 break],[
1070                                 CPPFLAGS="$cf_save_CPPFLAGS"
1071                                 ])
1072                 fi
1073         done
1074
1075         if test "$cf_cv_find_linkage_$3" = maybe ; then
1076
1077                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1078
1079                 cf_save_LIBS="$LIBS"
1080                 cf_save_LDFLAGS="$LDFLAGS"
1081
1082                 ifelse([$6],,,[
1083                 CPPFLAGS="$cf_test_CPPFLAGS"
1084                 LIBS="-l$3 $7 $cf_save_LIBS"
1085                 AC_TRY_LINK([$1],[$2],[
1086                         CF_VERBOSE(... found $3 library in system)
1087                         cf_cv_find_linkage_$3=yes])
1088                         CPPFLAGS="$cf_save_CPPFLAGS"
1089                         LIBS="$cf_save_LIBS"
1090                         ])
1091
1092                 if test "$cf_cv_find_linkage_$3" != yes ; then
1093                         CF_LIBRARY_PATH(cf_search,$3)
1094                         for cf_cv_library_path_$3 in $cf_search
1095                         do
1096                                 if test -d $cf_cv_library_path_$3 ; then
1097                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
1098                                         CPPFLAGS="$cf_test_CPPFLAGS"
1099                                         LIBS="-l$3 $7 $cf_save_LIBS"
1100                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1101                                         AC_TRY_LINK([$1],[$2],[
1102                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1103                                         cf_cv_find_linkage_$3=yes
1104                                         cf_cv_library_file_$3="-l$3"
1105                                         break],[
1106                                         CPPFLAGS="$cf_save_CPPFLAGS"
1107                                         LIBS="$cf_save_LIBS"
1108                                         LDFLAGS="$cf_save_LDFLAGS"
1109                                         ])
1110                                 fi
1111                         done
1112                         CPPFLAGS="$cf_save_CPPFLAGS"
1113                         LDFLAGS="$cf_save_LDFLAGS"
1114                 fi
1115
1116         else
1117                 cf_cv_find_linkage_$3=no
1118         fi
1119         ],$7)
1120 ])
1121
1122 LIBS="$cf_save_LIBS"
1123
1124 if test "$cf_cv_find_linkage_$3" = yes ; then
1125 ifelse([$4],,[
1126         CF_ADD_INCDIR($cf_cv_header_path_$3)
1127         CF_ADD_LIBDIR($cf_cv_library_path_$3)
1128         CF_ADD_LIB($3)
1129 ],[$4])
1130 else
1131 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1132 fi
1133 ])dnl
1134 dnl ---------------------------------------------------------------------------
1135 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1136 dnl -----------------
1137 dnl make ADAFLAGS consistent with CFLAGS
1138 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1139         AC_MSG_CHECKING(optimization options for ADAFLAGS)
1140         case "$CFLAGS" in
1141         (*-g*)
1142                 CF_ADD_ADAFLAGS(-g)
1143                 ;;
1144         esac
1145         case "$CFLAGS" in
1146         (*-O*)
1147                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
1148                 CF_ADD_ADAFLAGS($cf_O_flag)
1149                 ;;
1150         esac
1151         AC_MSG_RESULT($ADAFLAGS)
1152 ])dnl
1153 dnl ---------------------------------------------------------------------------
1154 dnl CF_GCC_ATTRIBUTES version: 18 updated: 2020/03/10 18:53:47
1155 dnl -----------------
1156 dnl Test for availability of useful gcc __attribute__ directives to quiet
1157 dnl compiler warnings.  Though useful, not all are supported -- and contrary
1158 dnl to documentation, unrecognized directives cause older compilers to barf.
1159 AC_DEFUN([CF_GCC_ATTRIBUTES],
1160 [
1161 if test "$GCC" = yes
1162 then
1163 cat > conftest.i <<EOF
1164 #ifndef GCC_PRINTF
1165 #define GCC_PRINTF 0
1166 #endif
1167 #ifndef GCC_SCANF
1168 #define GCC_SCANF 0
1169 #endif
1170 #ifndef GCC_NORETURN
1171 #define GCC_NORETURN /* nothing */
1172 #endif
1173 #ifndef GCC_UNUSED
1174 #define GCC_UNUSED /* nothing */
1175 #endif
1176 EOF
1177 if test "$GCC" = yes
1178 then
1179         AC_CHECKING([for $CC __attribute__ directives])
1180 cat > conftest.$ac_ext <<EOF
1181 #line __oline__ "${as_me:-configure}"
1182 #include "confdefs.h"
1183 #include "conftest.h"
1184 #include "conftest.i"
1185 #if     GCC_PRINTF
1186 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1187 #else
1188 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1189 #endif
1190 #if     GCC_SCANF
1191 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
1192 #else
1193 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
1194 #endif
1195 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1196 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
1197 extern void foo(void) GCC_NORETURN;
1198 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1199 EOF
1200         cf_printf_attribute=no
1201         cf_scanf_attribute=no
1202         for cf_attribute in scanf printf unused noreturn
1203         do
1204                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1205                 cf_directive="__attribute__(($cf_attribute))"
1206                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1207
1208                 case $cf_attribute in
1209                 (printf)
1210                         cf_printf_attribute=yes
1211                         cat >conftest.h <<EOF
1212 #define GCC_$cf_ATTRIBUTE 1
1213 EOF
1214                         ;;
1215                 (scanf)
1216                         cf_scanf_attribute=yes
1217                         cat >conftest.h <<EOF
1218 #define GCC_$cf_ATTRIBUTE 1
1219 EOF
1220                         ;;
1221                 (*)
1222                         cat >conftest.h <<EOF
1223 #define GCC_$cf_ATTRIBUTE $cf_directive
1224 EOF
1225                         ;;
1226                 esac
1227
1228                 if AC_TRY_EVAL(ac_compile); then
1229                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1230                         cat conftest.h >>confdefs.h
1231                         case $cf_attribute in
1232                         (noreturn)
1233                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1234                                 ;;
1235                         (printf)
1236                                 cf_value='/* nothing */'
1237                                 if test "$cf_printf_attribute" != no ; then
1238                                         cf_value='__attribute__((format(printf,fmt,var)))'
1239                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1240                                 fi
1241                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1242                                 ;;
1243                         (scanf)
1244                                 cf_value='/* nothing */'
1245                                 if test "$cf_scanf_attribute" != no ; then
1246                                         cf_value='__attribute__((format(scanf,fmt,var)))'
1247                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1248                                 fi
1249                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1250                                 ;;
1251                         (unused)
1252                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1253                                 ;;
1254                         esac
1255                 fi
1256         done
1257 else
1258         fgrep define conftest.i >>confdefs.h
1259 fi
1260 rm -rf conftest*
1261 fi
1262 ])dnl
1263 dnl ---------------------------------------------------------------------------
1264 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1265 dnl --------------
1266 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1267 dnl compatible), attempt to determine if icc/clang is actually used.
1268 AC_DEFUN([CF_GCC_VERSION],[
1269 AC_REQUIRE([AC_PROG_CC])
1270 GCC_VERSION=none
1271 if test "$GCC" = yes ; then
1272         AC_MSG_CHECKING(version of $CC)
1273         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1274         test -z "$GCC_VERSION" && GCC_VERSION=unknown
1275         AC_MSG_RESULT($GCC_VERSION)
1276 fi
1277 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1278 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1279 ])dnl
1280 dnl ---------------------------------------------------------------------------
1281 dnl CF_GCC_WARNINGS version: 37 updated: 2020/01/05 20:04:12
1282 dnl ---------------
1283 dnl Check if the compiler supports useful warning options.  There's a few that
1284 dnl we don't use, simply because they're too noisy:
1285 dnl
1286 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1287 dnl     -Winline (usually not worthwhile)
1288 dnl     -Wredundant-decls (system headers make this too noisy)
1289 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
1290 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
1291 dnl             is enabled for ncurses using "--enable-const".
1292 dnl     -pedantic
1293 dnl
1294 dnl Parameter:
1295 dnl     $1 is an optional list of gcc warning flags that a particular
1296 dnl             application might want to use, e.g., "no-unused" for
1297 dnl             -Wno-unused
1298 dnl Special:
1299 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
1300 dnl
1301 AC_DEFUN([CF_GCC_WARNINGS],
1302 [
1303 AC_REQUIRE([CF_GCC_VERSION])
1304 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1305 cat > conftest.$ac_ext <<EOF
1306 #line __oline__ "${as_me:-configure}"
1307 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1308 EOF
1309 if test "$INTEL_COMPILER" = yes
1310 then
1311 # The "-wdXXX" options suppress warnings:
1312 # remark #1419: external declaration in primary source file
1313 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1314 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1315 # remark #193: zero used for undefined preprocessing identifier
1316 # remark #593: variable "curs_sb_left_arrow" was set but never used
1317 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1318 # remark #869: parameter "tw" was never referenced
1319 # remark #981: operands are evaluated in unspecified order
1320 # warning #279: controlling expression is constant
1321
1322         AC_CHECKING([for $CC warning options])
1323         cf_save_CFLAGS="$CFLAGS"
1324         EXTRA_CFLAGS="-Wall"
1325         for cf_opt in \
1326                 wd1419 \
1327                 wd1683 \
1328                 wd1684 \
1329                 wd193 \
1330                 wd593 \
1331                 wd279 \
1332                 wd810 \
1333                 wd869 \
1334                 wd981
1335         do
1336                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1337                 if AC_TRY_EVAL(ac_compile); then
1338                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1339                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1340                 fi
1341         done
1342         CFLAGS="$cf_save_CFLAGS"
1343 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1344 then
1345         AC_CHECKING([for $CC warning options])
1346         cf_save_CFLAGS="$CFLAGS"
1347         EXTRA_CFLAGS=
1348         cf_warn_CONST=""
1349         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1350         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1351         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1352         for cf_opt in W Wall \
1353                 Wbad-function-cast \
1354                 Wcast-align \
1355                 Wcast-qual \
1356                 Wdeclaration-after-statement \
1357                 Wextra \
1358                 Winline \
1359                 Wmissing-declarations \
1360                 Wmissing-prototypes \
1361                 Wnested-externs \
1362                 Wpointer-arith \
1363                 Wshadow \
1364                 Wstrict-prototypes \
1365                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1366         do
1367                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1368                 if AC_TRY_EVAL(ac_compile); then
1369                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1370                         case $cf_opt in
1371                         (Winline)
1372                                 case $GCC_VERSION in
1373                                 ([[34]].*)
1374                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1375                                         continue;;
1376                                 esac
1377                                 ;;
1378                         (Wpointer-arith)
1379                                 case $GCC_VERSION in
1380                                 ([[12]].*)
1381                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1382                                         continue;;
1383                                 esac
1384                                 ;;
1385                         esac
1386                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1387                 fi
1388         done
1389         CFLAGS="$cf_save_CFLAGS"
1390 fi
1391 rm -rf conftest*
1392
1393 AC_SUBST(EXTRA_CFLAGS)
1394 ])dnl
1395 dnl ---------------------------------------------------------------------------
1396 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1397 dnl -----------------
1398 AC_DEFUN([CF_GNATPREP_OPT_T],[
1399 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1400 cf_cv_gnatprep_opt_t=no
1401 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1402 ])
1403 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1404 AC_SUBST(GNATPREP_OPTS)
1405 ])dnl
1406 dnl ---------------------------------------------------------------------------
1407 dnl CF_GNAT_GENERICS version: 4 updated: 2019/12/31 08:53:54
1408 dnl ----------------
1409 AC_DEFUN([CF_GNAT_GENERICS],
1410 [
1411 AC_REQUIRE([CF_GNAT_VERSION])
1412
1413 AC_MSG_CHECKING(if GNAT supports generics)
1414 case $cf_cv_gnat_version in
1415 (3.[[1-9]]*|[[4-9]].*)
1416         cf_gnat_generics=yes
1417         ;;
1418 (*)
1419         cf_gnat_generics=no
1420         ;;
1421 esac
1422 AC_MSG_RESULT($cf_gnat_generics)
1423
1424 if test "$cf_gnat_generics" = yes
1425 then
1426         cf_compile_generics=generics
1427         cf_generic_objects="\${GENOBJS}"
1428 else
1429         cf_compile_generics=
1430         cf_generic_objects=
1431 fi
1432
1433 AC_SUBST(cf_compile_generics)
1434 AC_SUBST(cf_generic_objects)
1435 ])dnl
1436 dnl ---------------------------------------------------------------------------
1437 dnl CF_GNAT_PROJECTS version: 10 updated: 2019/12/31 08:53:54
1438 dnl ----------------
1439 dnl GNAT projects are configured with ".gpr" project files.
1440 dnl GNAT libraries are a further development, using the project feature.
1441 AC_DEFUN([CF_GNAT_PROJECTS],
1442 [
1443 AC_REQUIRE([CF_GNAT_VERSION])
1444 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1445
1446 cf_gnat_libraries=no
1447 cf_gnat_projects=no
1448
1449 if test "$enable_gnat_projects" != no ; then
1450 AC_MSG_CHECKING(if GNAT supports project files)
1451 case $cf_cv_gnat_version in
1452 (3.[[0-9]]*)
1453         ;;
1454 (*)
1455         case $cf_cv_system_name in
1456         (cygwin*|msys*)
1457                 ;;
1458         (*)
1459                 rm -rf conftest* *~conftest*
1460                 if mkdir conftest.src conftest.bin conftest.lib
1461                 then
1462                         cd conftest.src
1463                         rm -rf conftest* *~conftest*
1464                         cat >>library.gpr <<CF_EOF
1465 project Library is
1466   Kind := External ("LIB_KIND");
1467   for Library_Name use "ConfTest";
1468   for Object_Dir use ".";
1469   for Library_ALI_Dir use External("LIBRARY_DIR");
1470   for Library_Version use External ("SONAME");
1471   for Library_Kind use Kind;
1472   for Library_Dir use External("BUILD_DIR");
1473   Source_Dir := External ("SOURCE_DIR");
1474   for Source_Dirs use (Source_Dir);
1475 end Library;
1476 CF_EOF
1477                         cat >>confpackage.ads <<CF_EOF
1478 package ConfPackage is
1479    procedure conftest;
1480 end ConfPackage;
1481 CF_EOF
1482                         cat >>confpackage.adb <<CF_EOF
1483 with Text_IO;
1484 package body ConfPackage is
1485    procedure conftest is
1486    begin
1487       Text_IO.Put ("Hello World");
1488       Text_IO.New_Line;
1489    end conftest;
1490 end ConfPackage;
1491 CF_EOF
1492                         if ( $cf_ada_make $ADAFLAGS \
1493                                         -Plibrary.gpr \
1494                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
1495                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
1496                                         -XSOURCE_DIR=`pwd` \
1497                                         -XSONAME=libConfTest.so.1 \
1498                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1499                                 cf_gnat_projects=yes
1500                         fi
1501                         cd ..
1502                 fi
1503                 if test -f conftest.lib/confpackage.ali
1504                 then
1505                         cf_gnat_libraries=yes
1506                 fi
1507                 rm -rf conftest* *~conftest*
1508                 ;;
1509         esac
1510         ;;
1511 esac
1512 AC_MSG_RESULT($cf_gnat_projects)
1513 fi # enable_gnat_projects
1514
1515 if test $cf_gnat_projects = yes
1516 then
1517         AC_MSG_CHECKING(if GNAT supports libraries)
1518         AC_MSG_RESULT($cf_gnat_libraries)
1519 fi
1520
1521 if test "$cf_gnat_projects" = yes
1522 then
1523         USE_OLD_MAKERULES="#"
1524         USE_GNAT_PROJECTS=""
1525 else
1526         USE_OLD_MAKERULES=""
1527         USE_GNAT_PROJECTS="#"
1528 fi
1529
1530 if test "$cf_gnat_libraries" = yes
1531 then
1532         USE_GNAT_LIBRARIES=""
1533 else
1534         USE_GNAT_LIBRARIES="#"
1535 fi
1536
1537 AC_SUBST(USE_OLD_MAKERULES)
1538 AC_SUBST(USE_GNAT_PROJECTS)
1539 AC_SUBST(USE_GNAT_LIBRARIES)
1540 ])dnl
1541 dnl ---------------------------------------------------------------------------
1542 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
1543 dnl --------------
1544 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
1545 dnl is noted that gnat may compile a tasking unit even for configurations which
1546 dnl fail at runtime.
1547 AC_DEFUN([CF_GNAT_SIGINT],[
1548 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1549 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1550
1551 package ConfTest is
1552
1553    pragma Warnings (Off);  --  the next pragma exists since 3.11p
1554    pragma Unreserve_All_Interrupts;
1555    pragma Warnings (On);
1556
1557    protected Process is
1558       procedure Stop;
1559       function Continue return Boolean;
1560       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1561    private
1562       Done : Boolean := False;
1563    end Process;
1564
1565 end ConfTest;],
1566 [package body ConfTest is
1567    protected body Process is
1568       procedure Stop is
1569       begin
1570          Done := True;
1571       end Stop;
1572       function Continue return Boolean is
1573       begin
1574          return not Done;
1575       end Continue;
1576    end Process;
1577 end ConfTest;],
1578         [cf_cv_gnat_sigint=yes],
1579         [cf_cv_gnat_sigint=no])])
1580
1581 if test $cf_cv_gnat_sigint = yes ; then
1582         USE_GNAT_SIGINT=""
1583 else
1584         USE_GNAT_SIGINT="#"
1585 fi
1586 AC_SUBST(USE_GNAT_SIGINT)
1587 ])dnl
1588 dnl ---------------------------------------------------------------------------
1589 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
1590 dnl ----------------
1591 dnl Verify that a test program compiles/links with GNAT.
1592 dnl $cf_ada_make is set to the program that compiles/links
1593 dnl $ADAFLAGS may be set to the GNAT flags.
1594 dnl
1595 dnl $1 is the text of the spec
1596 dnl $2 is the text of the body
1597 dnl $3 is the shell command to execute if successful
1598 dnl $4 is the shell command to execute if not successful
1599 AC_DEFUN([CF_GNAT_TRY_LINK],
1600 [
1601 rm -rf conftest* *~conftest*
1602 cat >>conftest.ads <<CF_EOF
1603 $1
1604 CF_EOF
1605 cat >>conftest.adb <<CF_EOF
1606 $2
1607 CF_EOF
1608 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1609 ifelse($3,,      :,[      $3])
1610 ifelse($4,,,[else
1611    $4])
1612 fi
1613 rm -rf conftest* *~conftest*
1614 ])dnl
1615 dnl ---------------------------------------------------------------------------
1616 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
1617 dnl ---------------
1618 dnl Verify that a test program compiles and runs with GNAT
1619 dnl $cf_ada_make is set to the program that compiles/links
1620 dnl $ADAFLAGS may be set to the GNAT flags.
1621 dnl
1622 dnl $1 is the text of the spec
1623 dnl $2 is the text of the body
1624 dnl $3 is the shell command to execute if successful
1625 dnl $4 is the shell command to execute if not successful
1626 AC_DEFUN([CF_GNAT_TRY_RUN],
1627 [
1628 rm -rf conftest* *~conftest*
1629 cat >>conftest.ads <<CF_EOF
1630 $1
1631 CF_EOF
1632 cat >>conftest.adb <<CF_EOF
1633 $2
1634 CF_EOF
1635 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1636    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1637 ifelse($3,,      :,[      $3])
1638 ifelse($4,,,[   else
1639       $4])
1640    fi
1641 ifelse($4,,,[else
1642    $4])
1643 fi
1644 rm -rf conftest* *~conftest*
1645 ])dnl
1646 dnl ---------------------------------------------------------------------------
1647 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
1648 dnl ---------------
1649 dnl $1 = cache variable to update
1650 dnl $2 = program name
1651 dnl Verify version of GNAT or related tool
1652 AC_DEFUN([CF_GNAT_VERSION],
1653 [
1654 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
1655 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
1656         grep '[[0-9]].[[0-9]][[0-9]]*' |\
1657         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1658 ])
1659 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
1660 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
1661 ])dnl
1662 dnl ---------------------------------------------------------------------------
1663 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1664 dnl -------------
1665 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1666 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
1667 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1668 dnl since it is interwoven with GNU extensions.
1669 dnl
1670 dnl Well, yes we could work around it...
1671 dnl
1672 dnl Parameters:
1673 dnl     $1 is the nominal value for _XOPEN_SOURCE
1674 AC_DEFUN([CF_GNU_SOURCE],
1675 [
1676 cf_gnu_xopen_source=ifelse($1,,500,$1)
1677
1678 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1679 AC_TRY_COMPILE([#include <sys/types.h>],[
1680         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1681                 return 0;
1682         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1683                 return 0;
1684         #else
1685         #       error not GNU C library
1686         #endif],
1687         [cf_cv_gnu_library=yes],
1688         [cf_cv_gnu_library=no])
1689 ])
1690
1691 if test x$cf_cv_gnu_library = xyes; then
1692
1693         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1694         # was changed to help a little.  newlib incorporated the change about 4
1695         # years later.
1696         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1697                 cf_save="$CPPFLAGS"
1698                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1699                 AC_TRY_COMPILE([#include <sys/types.h>],[
1700                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1701                                 return 0;
1702                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1703                                 return 0;
1704                         #else
1705                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1706                         #endif],
1707                         [cf_cv_gnu_library_219=yes],
1708                         [cf_cv_gnu_library_219=no])
1709                 CPPFLAGS="$cf_save"
1710         ])
1711
1712         if test "x$cf_cv_gnu_library_219" = xyes; then
1713                 cf_save="$CPPFLAGS"
1714                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1715                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
1716                         AC_TRY_COMPILE([
1717                                 #include <limits.h>
1718                                 #include <sys/types.h>
1719                                 ],[
1720                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
1721                                         return 0;
1722                                 #else
1723                                 #       error GNU C library is too old
1724                                 #endif],
1725                                 [cf_cv_gnu_dftsrc_219=yes],
1726                                 [cf_cv_gnu_dftsrc_219=no])
1727                         ])
1728                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
1729         else
1730                 cf_cv_gnu_dftsrc_219=maybe
1731         fi
1732
1733         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
1734
1735                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1736                 AC_TRY_COMPILE([#include <sys/types.h>],[
1737                         #ifndef _XOPEN_SOURCE
1738                         #error  expected _XOPEN_SOURCE to be defined
1739                         #endif],
1740                         [cf_cv_gnu_source=no],
1741                         [cf_save="$CPPFLAGS"
1742                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
1743                          AC_TRY_COMPILE([#include <sys/types.h>],[
1744                                 #ifdef _XOPEN_SOURCE
1745                                 #error  expected _XOPEN_SOURCE to be undefined
1746                                 #endif],
1747                                 [cf_cv_gnu_source=no],
1748                                 [cf_cv_gnu_source=yes])
1749                         CPPFLAGS="$cf_save"
1750                         ])
1751                 ])
1752
1753                 if test "$cf_cv_gnu_source" = yes
1754                 then
1755                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
1756                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
1757                         AC_TRY_COMPILE([#include <sys/types.h>],[
1758                                 #ifdef _DEFAULT_SOURCE
1759                                 #error  expected _DEFAULT_SOURCE to be undefined
1760                                 #endif],
1761                                 [cf_cv_default_source=no],
1762                                 [cf_cv_default_source=yes])
1763                         ])
1764                         if test "$cf_cv_default_source" = yes
1765                         then
1766                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1767                         fi
1768                 fi
1769         fi
1770
1771 fi
1772 ])dnl
1773 dnl ---------------------------------------------------------------------------
1774 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
1775 dnl --------------
1776 dnl Construct a search-list of directories for a nonstandard header-file
1777 dnl
1778 dnl Parameters
1779 dnl     $1 = the variable to return as result
1780 dnl     $2 = the package name
1781 AC_DEFUN([CF_HEADER_PATH],
1782 [
1783 $1=
1784
1785 # collect the current set of include-directories from compiler flags
1786 cf_header_path_list=""
1787 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1788         for cf_header_path in $CPPFLAGS $CFLAGS
1789         do
1790                 case $cf_header_path in
1791                 (-I*)
1792                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1793                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1794                         cf_header_path_list="$cf_header_path_list [$]$1"
1795                         ;;
1796                 esac
1797         done
1798 fi
1799
1800 # add the variations for the package we are looking for
1801 CF_SUBDIR_PATH($1,$2,include)
1802
1803 test "$includedir" != NONE && \
1804 test "$includedir" != "/usr/include" && \
1805 test -d "$includedir" && {
1806         test -d $includedir &&    $1="[$]$1 $includedir"
1807         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
1808 }
1809
1810 test "$oldincludedir" != NONE && \
1811 test "$oldincludedir" != "/usr/include" && \
1812 test -d "$oldincludedir" && {
1813         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
1814         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
1815 }
1816
1817 $1="[$]$1 $cf_header_path_list"
1818 ])dnl
1819 dnl ---------------------------------------------------------------------------
1820 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
1821 dnl ---------------
1822 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
1823 AC_DEFUN([CF_HELP_MESSAGE],
1824 [CF_ACVERSION_CHECK(2.53,[],[
1825 AC_DIVERT_HELP($1)])dnl
1826 ])dnl
1827 dnl ---------------------------------------------------------------------------
1828 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
1829 dnl ---------------
1830 dnl Construct the list of include-options according to whether we're building
1831 dnl in the source directory or using '--srcdir=DIR' option.
1832 AC_DEFUN([CF_INCLUDE_DIRS],
1833 [
1834 if test "$srcdir" != "."; then
1835         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
1836 fi
1837 CPPFLAGS="-I../include $CPPFLAGS"
1838 if test "$srcdir" != "."; then
1839         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
1840 fi
1841 CPPFLAGS="-I. $CPPFLAGS"
1842 AC_SUBST(CPPFLAGS)
1843 ])dnl
1844 dnl ---------------------------------------------------------------------------
1845 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
1846 dnl ---------------
1847 dnl prompt for/fill-in useful install-program options
1848 AC_DEFUN([CF_INSTALL_OPTS],
1849 [
1850 CF_INSTALL_OPT_S
1851 CF_INSTALL_OPT_P
1852 CF_INSTALL_OPT_O
1853 ])dnl
1854 dnl ---------------------------------------------------------------------------
1855 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
1856 dnl ----------------
1857 dnl Almost all "install" programs default to the current user's ownership.
1858 dnl Almost - MINIX is an exception.
1859 AC_DEFUN([CF_INSTALL_OPT_O],
1860 [
1861 AC_MSG_CHECKING(if install needs to be told about ownership)
1862 case `$ac_config_guess` in
1863 (*minix)
1864         with_install_o=yes
1865         ;;
1866 (*)
1867         with_install_o=no
1868         ;;
1869 esac
1870
1871 AC_MSG_RESULT($with_install_o)
1872 if test "x$with_install_o" = xyes
1873 then
1874         INSTALL_OPT_O=`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`
1875 else
1876         INSTALL_OPT_O=
1877 fi
1878
1879 AC_SUBST(INSTALL_OPT_O)
1880 ])dnl
1881 dnl ---------------------------------------------------------------------------
1882 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
1883 dnl ----------------
1884 dnl Some install-programs accept a "-p" option to preserve file modification
1885 dnl timestamps.  That can be useful as an install option, as well as a way to
1886 dnl avoid the need for ranlib after copying a static archive.
1887 AC_DEFUN([CF_INSTALL_OPT_P],
1888 [
1889 : ${INSTALL:=install}
1890 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
1891         rm -rf conftest*
1892         date >conftest.in
1893         mkdir conftest.out
1894         sleep 3
1895         if $INSTALL -p conftest.in conftest.out 2>/dev/null
1896         then
1897                 if test -f conftest.out/conftest.in
1898                 then
1899                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
1900                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
1901                         if test -s conftest.err
1902                         then
1903                                 cf_cv_install_p=no
1904                         else
1905                                 cf_cv_install_p=yes
1906                         fi
1907                 else
1908                         cf_cv_install_p=no
1909                 fi
1910         else
1911                 cf_cv_install_p=no
1912         fi
1913         rm -rf conftest*
1914 ])
1915 ])dnl
1916 dnl ---------------------------------------------------------------------------
1917 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
1918 dnl ----------------
1919 dnl By default, we should strip executables which are installed, but leave the
1920 dnl ability to suppress that for unit-testing.
1921 AC_DEFUN([CF_INSTALL_OPT_S],
1922 [
1923 AC_MSG_CHECKING(if you want to install stripped executables)
1924 CF_ARG_DISABLE(stripping,
1925         [  --disable-stripping     do not strip (debug info) installed executables],
1926         [with_stripping=no],
1927         [with_stripping=yes])
1928 AC_MSG_RESULT($with_stripping)
1929
1930 if test "$with_stripping" = yes
1931 then
1932         INSTALL_OPT_S="-s"
1933 else
1934         INSTALL_OPT_S=
1935 fi
1936 AC_SUBST(INSTALL_OPT_S)
1937 ])dnl
1938 dnl ---------------------------------------------------------------------------
1939 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
1940 dnl -----------------
1941 dnl Check if the given compiler is really the Intel compiler for Linux.  It
1942 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
1943 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
1944 dnl
1945 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1946 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1947 dnl the wrappers for gcc and g++ warnings.
1948 dnl
1949 dnl $1 = GCC (default) or GXX
1950 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
1951 dnl $3 = CFLAGS (default) or CXXFLAGS
1952 AC_DEFUN([CF_INTEL_COMPILER],[
1953 AC_REQUIRE([AC_CANONICAL_HOST])
1954 ifelse([$2],,INTEL_COMPILER,[$2])=no
1955
1956 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1957         case $host_os in
1958         (linux*|gnu*)
1959                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
1960                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1961                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
1962                 AC_TRY_COMPILE([],[
1963 #ifdef __INTEL_COMPILER
1964 #else
1965 make an error
1966 #endif
1967 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
1968 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
1969 ],[])
1970                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1971                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
1972                 ;;
1973         esac
1974 fi
1975 ])dnl
1976 dnl ---------------------------------------------------------------------------
1977 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
1978 dnl ------------
1979 dnl Add checks for large file support.
1980 AC_DEFUN([CF_LARGEFILE],[
1981 ifdef([AC_FUNC_FSEEKO],[
1982         AC_SYS_LARGEFILE
1983         if test "$enable_largefile" != no ; then
1984         AC_FUNC_FSEEKO
1985
1986         # Normally we would collect these definitions in the config.h,
1987         # but (like _XOPEN_SOURCE), some environments rely on having these
1988         # defined before any of the system headers are included.  Another
1989         # case comes up with C++, e.g., on AIX the compiler compiles the
1990         # header files by themselves before looking at the body files it is
1991         # told to compile.  For ncurses, those header files do not include
1992         # the config.h
1993         if test "$ac_cv_sys_large_files" != no
1994         then
1995                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
1996         fi
1997         if test "$ac_cv_sys_largefile_source" != no
1998         then
1999                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
2000         fi
2001         if test "$ac_cv_sys_file_offset_bits" != no
2002         then
2003                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
2004         fi
2005
2006         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
2007                 AC_TRY_COMPILE([
2008 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
2009 #include <sys/types.h>
2010 #include <dirent.h>
2011                 ],[
2012                 /* if transitional largefile support is setup, this is true */
2013                 extern struct dirent64 * readdir(DIR *);
2014                 struct dirent64 *x = readdir((DIR *)0);
2015                 struct dirent *y = readdir((DIR *)0);
2016                 int z = x - y;
2017                 (void)z;
2018                 ],
2019                 [cf_cv_struct_dirent64=yes],
2020                 [cf_cv_struct_dirent64=no])
2021         ])
2022         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2023         fi
2024 ])
2025 ])
2026 dnl ---------------------------------------------------------------------------
2027 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
2028 dnl ---------------
2029 dnl For the given system and compiler, find the compiler flags to pass to the
2030 dnl loader to use the "rpath" feature.
2031 AC_DEFUN([CF_LD_RPATH_OPT],
2032 [
2033 AC_REQUIRE([CF_CHECK_CACHE])
2034
2035 LD_RPATH_OPT=
2036 if test "x$cf_cv_enable_rpath" != xno
2037 then
2038         AC_MSG_CHECKING(for an rpath option)
2039         case $cf_cv_system_name in
2040         (irix*)
2041                 if test "$GCC" = yes; then
2042                         LD_RPATH_OPT="-Wl,-rpath,"
2043                 else
2044                         LD_RPATH_OPT="-rpath "
2045                 fi
2046                 ;;
2047         (linux*|gnu*|k*bsd*-gnu|freebsd*)
2048                 LD_RPATH_OPT="-Wl,-rpath,"
2049                 ;;
2050         (openbsd[[2-9]].*|mirbsd*)
2051                 LD_RPATH_OPT="-Wl,-rpath,"
2052                 ;;
2053         (dragonfly*)
2054                 LD_RPATH_OPT="-rpath "
2055                 ;;
2056         (netbsd*)
2057                 LD_RPATH_OPT="-Wl,-rpath,"
2058                 ;;
2059         (osf*|mls+*)
2060                 LD_RPATH_OPT="-rpath "
2061                 ;;
2062         (solaris2*)
2063                 LD_RPATH_OPT="-R"
2064                 ;;
2065         (*)
2066                 ;;
2067         esac
2068         AC_MSG_RESULT($LD_RPATH_OPT)
2069
2070         case "x$LD_RPATH_OPT" in
2071         (x-R*)
2072                 AC_MSG_CHECKING(if we need a space after rpath option)
2073                 cf_save_LIBS="$LIBS"
2074                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2075                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2076                 LIBS="$cf_save_LIBS"
2077                 AC_MSG_RESULT($cf_rpath_space)
2078                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2079                 ;;
2080         esac
2081 fi
2082 ])dnl
2083 dnl ---------------------------------------------------------------------------
2084 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
2085 dnl ---------------
2086 dnl Construct a search-list of directories for a nonstandard library-file
2087 dnl
2088 dnl Parameters
2089 dnl     $1 = the variable to return as result
2090 dnl     $2 = the package name
2091 AC_DEFUN([CF_LIBRARY_PATH],
2092 [
2093 $1=
2094 cf_library_path_list=""
2095 if test -n "${LDFLAGS}${LIBS}" ; then
2096         for cf_library_path in $LDFLAGS $LIBS
2097         do
2098                 case $cf_library_path in
2099                 (-L*)
2100                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2101                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2102                         cf_library_path_list="$cf_library_path_list [$]$1"
2103                         ;;
2104                 esac
2105         done
2106 fi
2107
2108 CF_SUBDIR_PATH($1,$2,lib)
2109
2110 $1="$cf_library_path_list [$]$1"
2111 ])dnl
2112 dnl ---------------------------------------------------------------------------
2113 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
2114 dnl -------------
2115 dnl Compute the library-prefix for the given host system
2116 dnl $1 = variable to set
2117 define([CF_LIB_PREFIX],
2118 [
2119         case $cf_cv_system_name in
2120         (OS/2*|os2*)
2121                 if test "$DFT_LWR_MODEL" = libtool; then
2122                         LIB_PREFIX='lib'
2123                 else
2124                         LIB_PREFIX=''
2125                 fi
2126                 ;;
2127         (*)     LIB_PREFIX='lib'
2128                 ;;
2129         esac
2130 ifelse($1,,,[$1=$LIB_PREFIX])
2131         AC_SUBST(LIB_PREFIX)
2132 ])dnl
2133 dnl ---------------------------------------------------------------------------
2134 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
2135 dnl -------------
2136 dnl Compute the library file-suffix from the given model name
2137 dnl $1 = model name
2138 dnl $2 = variable to set (the nominal library suffix)
2139 dnl $3 = dependency variable to set (actual filename)
2140 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2141 AC_DEFUN([CF_LIB_SUFFIX],
2142 [
2143         case X$1 in
2144         (Xlibtool)
2145                 $2='.la'
2146                 $3=[$]$2
2147                 ;;
2148         (Xdebug)
2149                 $2='_g.a'
2150                 $3=[$]$2
2151                 ;;
2152         (Xprofile)
2153                 $2='_p.a'
2154                 $3=[$]$2
2155                 ;;
2156         (Xshared)
2157                 case $cf_cv_system_name in
2158                 (aix[[5-7]]*)
2159                         $2='.so'
2160                         $3=[$]$2
2161                         ;;
2162                 (cygwin*|msys*|mingw*)
2163                         $2='.dll'
2164                         $3='.dll.a'
2165                         ;;
2166                 (darwin*)
2167                         $2='.dylib'
2168                         $3=[$]$2
2169                         ;;
2170                 (hpux*)
2171                         case $target in
2172                         (ia64*)
2173                                 $2='.so'
2174                                 $3=[$]$2
2175                                 ;;
2176                         (*)
2177                                 $2='.sl'
2178                                 $3=[$]$2
2179                                 ;;
2180                         esac
2181                         ;;
2182                 (*)
2183                         $2='.so'
2184                         $3=[$]$2
2185                         ;;
2186                 esac
2187                 ;;
2188         (*)
2189                 $2='.a'
2190                 $3=[$]$2
2191                 ;;
2192         esac
2193         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2194         then
2195                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2196                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2197         fi
2198 ])dnl
2199 dnl ---------------------------------------------------------------------------
2200 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2201 dnl -----------
2202 dnl Compute the string to append to -library from the given model name
2203 dnl $1 = model name
2204 dnl $2 = variable to set
2205 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2206 AC_DEFUN([CF_LIB_TYPE],
2207 [
2208         case $1 in
2209         (libtool) $2=''   ;;
2210         (normal)  $2=''   ;;
2211         (debug)   $2='_g' ;;
2212         (profile) $2='_p' ;;
2213         (shared)  $2=''   ;;
2214         esac
2215         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2216 ])dnl
2217 dnl ---------------------------------------------------------------------------
2218 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2219 dnl ----------------
2220 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2221 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
2222 dnl have to provide wrappers for global tables to ensure they're linked
2223 dnl properly.
2224 AC_DEFUN([CF_LINK_DATAONLY],
2225 [
2226 AC_MSG_CHECKING([if data-only library module links])
2227 AC_CACHE_VAL(cf_cv_link_dataonly,[
2228         rm -f conftest.a
2229         cat >conftest.$ac_ext <<EOF
2230 #line __oline__ "configure"
2231 int     testdata[[3]] = { 123, 456, 789 };
2232 EOF
2233         if AC_TRY_EVAL(ac_compile) ; then
2234                 mv conftest.o data.o && \
2235                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2236         fi
2237         rm -f conftest.$ac_ext data.o
2238         cat >conftest.$ac_ext <<EOF
2239 #line __oline__ "configure"
2240 int     testfunc(void)
2241 {
2242 #if defined(NeXT)
2243         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
2244 #else
2245         extern int testdata[[3]];
2246         return testdata[[0]] == 123
2247            &&  testdata[[1]] == 456
2248            &&  testdata[[2]] == 789;
2249 #endif
2250 }
2251 EOF
2252         if AC_TRY_EVAL(ac_compile); then
2253                 mv conftest.o func.o && \
2254                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2255         fi
2256         rm -f conftest.$ac_ext func.o
2257         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2258         cf_saveLIBS="$LIBS"
2259         LIBS="conftest.a $LIBS"
2260         AC_TRY_RUN([
2261         int main(void)
2262         {
2263                 extern int testfunc();
2264                 ${cf_cv_main_return:-return} (!testfunc());
2265         }
2266         ],
2267         [cf_cv_link_dataonly=yes],
2268         [cf_cv_link_dataonly=no],
2269         [cf_cv_link_dataonly=unknown])
2270         LIBS="$cf_saveLIBS"
2271         ])
2272 AC_MSG_RESULT($cf_cv_link_dataonly)
2273
2274 if test "$cf_cv_link_dataonly" = no ; then
2275         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2276         BROKEN_LINKER=1
2277 fi
2278 AC_SUBST(BROKEN_LINKER)
2279
2280 ])dnl
2281 dnl ---------------------------------------------------------------------------
2282 dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
2283 dnl ------------
2284 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2285 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
2286 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2287 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2288 AC_DEFUN([CF_MAKEFLAGS],
2289 [
2290 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2291         cf_cv_makeflags=''
2292         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2293         do
2294                 cat >cf_makeflags.tmp <<CF_EOF
2295 SHELL = $SHELL
2296 all :
2297         @ echo '.$cf_option'
2298 CF_EOF
2299                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[   ]]*$,,'`
2300                 case "$cf_result" in
2301                 (.*k|.*kw)
2302                         cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
2303                         case "$cf_result" in
2304                         (.*CC=*)        cf_cv_makeflags=
2305                                 ;;
2306                         (*)     cf_cv_makeflags=$cf_option
2307                                 ;;
2308                         esac
2309                         break
2310                         ;;
2311                 (.-)
2312                         ;;
2313                 (*)
2314                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2315                         ;;
2316                 esac
2317         done
2318         rm -f cf_makeflags.tmp
2319 ])
2320
2321 AC_SUBST(cf_cv_makeflags)
2322 ])dnl
2323 dnl ---------------------------------------------------------------------------
2324 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2325 dnl ------------
2326 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
2327 dnl a monocase filesystem.
2328 AC_DEFUN([CF_MAKE_TAGS],[
2329 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2330
2331 AC_CHECK_PROGS(CTAGS, exctags ctags)
2332 AC_CHECK_PROGS(ETAGS, exetags etags)
2333
2334 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2335
2336 if test "$cf_cv_mixedcase" = yes ; then
2337         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2338 else
2339         MAKE_UPPER_TAGS=no
2340 fi
2341
2342 if test "$MAKE_UPPER_TAGS" = yes ; then
2343         MAKE_UPPER_TAGS=
2344 else
2345         MAKE_UPPER_TAGS="#"
2346 fi
2347
2348 if test "$MAKE_LOWER_TAGS" = yes ; then
2349         MAKE_LOWER_TAGS=
2350 else
2351         MAKE_LOWER_TAGS="#"
2352 fi
2353
2354 AC_SUBST(CTAGS)
2355 AC_SUBST(ETAGS)
2356
2357 AC_SUBST(MAKE_UPPER_TAGS)
2358 AC_SUBST(MAKE_LOWER_TAGS)
2359 ])dnl
2360 dnl ---------------------------------------------------------------------------
2361 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
2362 dnl ----------------------
2363 dnl Check if the file-system supports mixed-case filenames.  If we're able to
2364 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2365 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2366 [
2367 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2368 if test "$cross_compiling" = yes ; then
2369         case $target_alias in
2370         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
2371                 cf_cv_mixedcase=no
2372                 ;;
2373         (*)
2374                 cf_cv_mixedcase=yes
2375                 ;;
2376         esac
2377 else
2378         rm -f conftest CONFTEST
2379         echo test >conftest
2380         if test -f CONFTEST ; then
2381                 cf_cv_mixedcase=no
2382         else
2383                 cf_cv_mixedcase=yes
2384         fi
2385         rm -f conftest CONFTEST
2386 fi
2387 ])
2388 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2389 ])dnl
2390 dnl ---------------------------------------------------------------------------
2391 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
2392 dnl ----------
2393 dnl Check for a working mkstemp.  This creates two files, checks that they are
2394 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2395 AC_DEFUN([CF_MKSTEMP],[
2396 AC_CHECK_HEADERS( \
2397 unistd.h \
2398 )
2399 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2400 rm -rf conftest*
2401 AC_TRY_RUN([
2402 #include <sys/types.h>
2403 #ifdef HAVE_UNISTD_H
2404 #include <unistd.h>
2405 #endif
2406 #include <stdlib.h>
2407 #include <stdio.h>
2408 #include <string.h>
2409 #include <sys/stat.h>
2410 int main(void)
2411 {
2412         char *tmpl = "conftestXXXXXX";
2413         char name[2][80];
2414         int n;
2415         int result = 0;
2416         int fd;
2417         struct stat sb;
2418
2419         umask(077);
2420         for (n = 0; n < 2; ++n) {
2421                 strcpy(name[n], tmpl);
2422                 if ((fd = mkstemp(name[n])) >= 0) {
2423                         if (!strcmp(name[n], tmpl)
2424                          || stat(name[n], &sb) != 0
2425                          || (sb.st_mode & S_IFMT) != S_IFREG
2426                          || (sb.st_mode & 077) != 0) {
2427                                 result = 1;
2428                         }
2429                         close(fd);
2430                 }
2431         }
2432         if (result == 0
2433          && !strcmp(name[0], name[1]))
2434                 result = 1;
2435         ${cf_cv_main_return:-return}(result);
2436 }
2437 ],[cf_cv_func_mkstemp=yes
2438 ],[cf_cv_func_mkstemp=no
2439 ],[cf_cv_func_mkstemp=maybe])
2440 ])
2441 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2442         AC_CHECK_FUNC(mkstemp)
2443 fi
2444 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2445         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2446 fi
2447 ])dnl
2448 dnl ---------------------------------------------------------------------------
2449 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2450 dnl ----------
2451 dnl Write a debug message to config.log, along with the line number in the
2452 dnl configure script.
2453 AC_DEFUN([CF_MSG_LOG],[
2454 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2455 ])dnl
2456 dnl ---------------------------------------------------------------------------
2457 dnl CF_NCURSES_ADDON version: 5 updated: 2015/04/26 18:06:58
2458 dnl ----------------
2459 dnl Configure an ncurses add-on, built outside the ncurses tree.
2460 AC_DEFUN([CF_NCURSES_ADDON],[
2461 AC_REQUIRE([CF_NCURSES_CONFIG])
2462
2463 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2464
2465 AC_MSG_CHECKING(if you want wide-character code)
2466 AC_ARG_ENABLE(widec,
2467         [  --enable-widec          compile with wide-char/UTF-8 code],
2468         [with_widec=$enableval],
2469         [with_widec=no])
2470 AC_MSG_RESULT($with_widec)
2471 if test "$with_widec" = yes ; then
2472         CF_UTF8_LIB
2473         CF_NCURSES_CONFIG(ncursesw)
2474 else
2475         CF_NCURSES_CONFIG(ncurses)
2476 fi
2477
2478 if test "$NCURSES_CONFIG_PKG" != none ; then
2479         cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2480
2481         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2482         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2483         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2484
2485         cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2486         if test -z "$cf_cv_abi_version"
2487         then
2488                 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2489         fi
2490
2491 elif test "$NCURSES_CONFIG" != none ; then
2492
2493         cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2494
2495         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2496         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2497         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2498
2499         # ABI version is not available from headers
2500         cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2501
2502 else
2503
2504         for cf_name in MAJOR MINOR PATCH
2505         do
2506         cat >conftest.$ac_ext <<CF_EOF
2507         #include <${cf_cv_ncurses_header:-curses.h}>
2508         AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2509 CF_EOF
2510                 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2511                 AC_TRY_EVAL(cf_try)
2512                 if test -f conftest.out ; then
2513                         cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[  ]][[    ]]*//"`
2514                         eval NCURSES_$cf_name=\"$cf_result\"
2515                         # cat conftest.$ac_ext
2516                         # cat conftest.out
2517                 fi
2518         done
2519
2520         cf_cv_abi_version=${NCURSES_MAJOR}
2521
2522 fi
2523
2524 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2525
2526 dnl Show the computed version, for logging
2527 cf_cv_timestamp=`date`
2528
2529 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2530
2531 dnl We need these values in the generated headers
2532 AC_SUBST(NCURSES_MAJOR)
2533 AC_SUBST(NCURSES_MINOR)
2534 AC_SUBST(NCURSES_PATCH)
2535
2536 dnl We need these values in the generated makefiles
2537 AC_SUBST(cf_cv_rel_version)
2538 AC_SUBST(cf_cv_abi_version)
2539
2540 dnl FIXME - not needed for Ada95
2541 AC_SUBST(cf_cv_builtin_bool)
2542 AC_SUBST(cf_cv_header_stdbool_h)
2543 AC_SUBST(cf_cv_type_of_bool)dnl
2544
2545 ])
2546 dnl ---------------------------------------------------------------------------
2547 dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
2548 dnl -------------------
2549 dnl Check if we can compile with ncurses' header file
2550 dnl $1 is the cache variable to set
2551 dnl $2 is the header-file to include
2552 dnl $3 is the root name (ncurses or ncursesw)
2553 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2554         AC_TRY_COMPILE([
2555 ]ifelse($3,ncursesw,[
2556 #define _XOPEN_SOURCE_EXTENDED
2557 #undef  HAVE_LIBUTF8_H  /* in case we used CF_UTF8_LIB */
2558 #define HAVE_LIBUTF8_H  /* to force ncurses' header file to use cchar_t */
2559 ])[
2560 #include <$2>],[
2561 #ifdef NCURSES_VERSION
2562 ]ifelse($3,ncursesw,[
2563 #ifndef WACS_BSSB
2564         make an error
2565 #endif
2566 ])[
2567 printf("%s\n", NCURSES_VERSION);
2568 #else
2569 #ifdef __NCURSES_H
2570 printf("old\n");
2571 #else
2572         make an error
2573 #endif
2574 #endif
2575         ]
2576         ,[$1=$2]
2577         ,[$1=no])
2578 ])dnl
2579 dnl ---------------------------------------------------------------------------
2580 dnl CF_NCURSES_CONFIG version: 23 updated: 2020/02/27 05:21:59
2581 dnl -----------------
2582 dnl Tie together the configure-script macros for ncurses, preferring these in
2583 dnl order:
2584 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2585 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2586 dnl c) just plain libraries
2587 dnl
2588 dnl $1 is the root library name (default: "ncurses")
2589 AC_DEFUN([CF_NCURSES_CONFIG],[
2590 AC_REQUIRE([CF_PKG_CONFIG])
2591 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2592 cf_have_ncuconfig=no
2593
2594 if test "x${PKG_CONFIG:=none}" != xnone; then
2595         AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2596         if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2597                 AC_MSG_RESULT(yes)
2598
2599                 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2600                 cf_have_ncuconfig=unknown
2601
2602                 cf_save_CFLAGS="$CFLAGS"
2603                 cf_save_CPPFLAGS="$CPPFLAGS"
2604                 cf_save_LIBS="$LIBS"
2605
2606                 cf_pkg_cflags=`$PKG_CONFIG --cflags $cf_ncuconfig_root`
2607                 cf_pkg_libs=`$PKG_CONFIG --libs $cf_ncuconfig_root`
2608
2609                 # while -W for passing linker flags is prevalent, it is not "standard".
2610                 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2611                 # incompatible _and_ non-standard -W option which gives an error.  Work
2612                 # around that pitfall.
2613                 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2614                 (x*c[[89]]9@@*-W*)
2615                         CF_ADD_CFLAGS($cf_pkg_cflags)
2616                         CF_ADD_LIBS($cf_pkg_libs)
2617
2618                         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2619                                 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2620                                 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2621                                         int main(void)
2622                                         { char *xx = curses_version(); return (xx == 0); }],
2623                                         [cf_test_ncuconfig=yes],
2624                                         [cf_test_ncuconfig=no],
2625                                         [cf_test_ncuconfig=maybe])],
2626                                 [cf_test_ncuconfig=no])
2627
2628                         CFLAGS="$cf_save_CFLAGS"
2629                         CPPFLAGS="$cf_save_CPPFLAGS"
2630                         LIBS="$cf_save_LIBS"
2631
2632                         if test "x$cf_test_ncuconfig" != xyes; then
2633                                 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^     ]]*//g'`
2634                                 cf_pkg_cflags="$cf_temp"
2635                                 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^       ]]*//g'`
2636                                 cf_pkg_libs="$cf_temp"
2637                         fi
2638                         ;;
2639                 esac
2640
2641                 CF_ADD_CFLAGS($cf_pkg_cflags)
2642                 CF_ADD_LIBS($cf_pkg_libs)
2643
2644                 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2645                         [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2646                         [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2647                                 int main(void)
2648                                 { char *xx = curses_version(); return (xx == 0); }],
2649                                 [cf_have_ncuconfig=yes],
2650                                 [cf_have_ncuconfig=no],
2651                                 [cf_have_ncuconfig=maybe])],
2652                         [cf_have_ncuconfig=no])
2653                 AC_MSG_RESULT($cf_have_ncuconfig)
2654                 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2655                 if test "$cf_have_ncuconfig" != "yes"
2656                 then
2657                         CPPFLAGS="$cf_save_CPPFLAGS"
2658                         LIBS="$cf_save_LIBS"
2659                         NCURSES_CONFIG_PKG=none
2660                 else
2661                         AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2662                         NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2663                         CF_TERM_HEADER
2664                 fi
2665
2666         else
2667                 AC_MSG_RESULT(no)
2668                 NCURSES_CONFIG_PKG=none
2669         fi
2670 else
2671         NCURSES_CONFIG_PKG=none
2672 fi
2673
2674 if test "x$cf_have_ncuconfig" = "xno"; then
2675         cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2676
2677         CF_ACVERSION_CHECK(2.52,
2678                 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2679                 [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2680
2681         if test "$NCURSES_CONFIG" != none ; then
2682
2683                 CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
2684                 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2685
2686                 # even with config script, some packages use no-override for curses.h
2687                 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2688
2689                 dnl like CF_NCURSES_CPPFLAGS
2690                 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2691
2692                 dnl like CF_NCURSES_LIBS
2693                 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2694                 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2695
2696                 dnl like CF_NCURSES_VERSION
2697                 cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
2698
2699         else
2700
2701                 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2702                 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2703
2704         fi
2705 else
2706         NCURSES_CONFIG=none
2707 fi
2708 ])dnl
2709 dnl ---------------------------------------------------------------------------
2710 dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
2711 dnl -------------------
2712 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2713 dnl the CPPFLAGS variable so we can include its header.
2714 dnl
2715 dnl The header files may be installed as either curses.h, or ncurses.h (would
2716 dnl be obsolete, except that some packagers prefer this name to distinguish it
2717 dnl from a "native" curses implementation).  If not installed for overwrite,
2718 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2719 dnl /usr/include/ncurses), but someone may have installed overwriting the
2720 dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
2721 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2722 dnl the header.
2723 dnl
2724 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2725 dnl is already in the include-path, don't even bother with this, since we cannot
2726 dnl easily determine which file it is.  In this case, it has to be <curses.h>.
2727 dnl
2728 dnl The optional parameter gives the root name of the library, in case it is
2729 dnl not installed as the default curses library.  That is how the
2730 dnl wide-character version of ncurses is installed.
2731 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2732 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2733
2734 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2735 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2736
2737 test -n "$cf_cv_curses_dir" && \
2738 test "$cf_cv_curses_dir" != "no" && { \
2739   CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2740 }
2741
2742 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2743         cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2744         ( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
2745         for cf_header in $cf_header_list
2746         do
2747                 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2748                 test "$cf_cv_ncurses_h" != no && break
2749         done
2750 ])
2751
2752 CF_NCURSES_HEADER
2753 CF_TERM_HEADER
2754
2755 # some applications need this, but should check for NCURSES_VERSION
2756 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2757
2758 CF_NCURSES_VERSION
2759 ])dnl
2760 dnl ---------------------------------------------------------------------------
2761 dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
2762 dnl -----------------
2763 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2764 dnl variations of ncurses' installs.
2765 dnl
2766 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2767 AC_DEFUN([CF_NCURSES_HEADER],[
2768
2769 if test "$cf_cv_ncurses_h" != no ; then
2770         cf_cv_ncurses_header=$cf_cv_ncurses_h
2771 else
2772
2773 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2774         test -n "$verbose" && echo
2775         CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2776         test -n "$verbose" && echo search path $cf_search
2777         cf_save2_CPPFLAGS="$CPPFLAGS"
2778         for cf_incdir in $cf_search
2779         do
2780                 CF_ADD_INCDIR($cf_incdir)
2781                 for cf_header in \
2782                         ncurses.h \
2783                         curses.h
2784                 do
2785                         CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2786                         if test "$cf_cv_ncurses_h2" != no ; then
2787                                 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2788                                 test -n "$verbose" && echo $ac_n "      ... found $ac_c" 1>&AC_FD_MSG
2789                                 break
2790                         fi
2791                         test -n "$verbose" && echo "    ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2792                 done
2793                 CPPFLAGS="$cf_save2_CPPFLAGS"
2794                 test "$cf_cv_ncurses_h2" != no && break
2795         done
2796         test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2797         ])
2798
2799         CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2800         cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
2801         if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
2802                 cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
2803         fi
2804         CF_ADD_INCDIR($cf_1st_incdir)
2805
2806 fi
2807
2808 # Set definitions to allow ifdef'ing for ncurses.h
2809
2810 case $cf_cv_ncurses_header in
2811 (*ncurses.h)
2812         AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2813         ;;
2814 esac
2815
2816 case $cf_cv_ncurses_header in
2817 (ncurses/curses.h|ncurses/ncurses.h)
2818         AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2819         ;;
2820 (ncursesw/curses.h|ncursesw/ncurses.h)
2821         AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2822         ;;
2823 esac
2824
2825 ])dnl
2826 dnl ---------------------------------------------------------------------------
2827 dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
2828 dnl ---------------
2829 dnl Look for the ncurses library.  This is a little complicated on Linux,
2830 dnl because it may be linked with the gpm (general purpose mouse) library.
2831 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2832 dnl unusable with ncurses.  However, we don't want to link with gpm unless
2833 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2834 dnl and the linker will record a dependency.
2835 dnl
2836 dnl The optional parameter gives the root name of the library, in case it is
2837 dnl not installed as the default curses library.  That is how the
2838 dnl wide-character version of ncurses is installed.
2839 AC_DEFUN([CF_NCURSES_LIBS],
2840 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2841
2842 cf_nculib_root=ifelse($1,,ncurses,$1)
2843         # This works, except for the special case where we find gpm, but
2844         # ncurses is in a nonstandard location via $LIBS, and we really want
2845         # to link gpm.
2846 cf_ncurses_LIBS=""
2847 cf_ncurses_SAVE="$LIBS"
2848 AC_CHECK_LIB(gpm,Gpm_Open,
2849         [AC_CHECK_LIB(gpm,initscr,
2850                 [LIBS="$cf_ncurses_SAVE"],
2851                 [cf_ncurses_LIBS="-lgpm"])])
2852
2853 case $host_os in
2854 (freebsd*)
2855         # This is only necessary if you are linking against an obsolete
2856         # version of ncurses (but it should do no harm, since it's static).
2857         if test "$cf_nculib_root" = ncurses ; then
2858                 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2859         fi
2860         ;;
2861 esac
2862
2863 CF_ADD_LIBS($cf_ncurses_LIBS)
2864
2865 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
2866 then
2867         CF_ADD_LIBS(-l$cf_nculib_root)
2868 else
2869         CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2870                 [#include <${cf_cv_ncurses_header:-curses.h}>],
2871                 [initscr()],
2872                 initscr)
2873 fi
2874
2875 if test -n "$cf_ncurses_LIBS" ; then
2876         AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2877         cf_ncurses_SAVE="$LIBS"
2878         for p in $cf_ncurses_LIBS ; do
2879                 q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
2880                 if test "$q" != "$LIBS" ; then
2881                         LIBS="$q"
2882                 fi
2883         done
2884         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2885                 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2886                 [AC_MSG_RESULT(yes)],
2887                 [AC_MSG_RESULT(no)
2888                  LIBS="$cf_ncurses_SAVE"])
2889 fi
2890
2891 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2892 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2893 ])dnl
2894 dnl ---------------------------------------------------------------------------
2895 dnl CF_NCURSES_VERSION version: 15 updated: 2017/05/09 19:26:10
2896 dnl ------------------
2897 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2898 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
2899 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2900 AC_DEFUN([CF_NCURSES_VERSION],
2901 [
2902 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2903 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2904         cf_cv_ncurses_version=no
2905         cf_tempfile=out$$
2906         rm -f $cf_tempfile
2907         AC_TRY_RUN([
2908 #include <${cf_cv_ncurses_header:-curses.h}>
2909 #include <stdio.h>
2910 int main(void)
2911 {
2912         FILE *fp = fopen("$cf_tempfile", "w");
2913 #ifdef NCURSES_VERSION
2914 # ifdef NCURSES_VERSION_PATCH
2915         fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2916 # else
2917         fprintf(fp, "%s\n", NCURSES_VERSION);
2918 # endif
2919 #else
2920 # ifdef __NCURSES_H
2921         fprintf(fp, "old\n");
2922 # else
2923         make an error
2924 # endif
2925 #endif
2926         ${cf_cv_main_return:-return}(0);
2927 }],[
2928         cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2929
2930         # This will not work if the preprocessor splits the line after the
2931         # Autoconf token.  The 'unproto' program does that.
2932         cat > conftest.$ac_ext <<EOF
2933 #include <${cf_cv_ncurses_header:-curses.h}>
2934 #undef Autoconf
2935 #ifdef NCURSES_VERSION
2936 Autoconf NCURSES_VERSION
2937 #else
2938 #ifdef __NCURSES_H
2939 Autoconf "old"
2940 #endif
2941 ;
2942 #endif
2943 EOF
2944         cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2945         AC_TRY_EVAL(cf_try)
2946         if test -f conftest.out ; then
2947                 cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
2948                 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2949                 rm -f conftest.out
2950         fi
2951 ])
2952         rm -f $cf_tempfile
2953 ])
2954 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2955 ])dnl
2956 dnl ---------------------------------------------------------------------------
2957 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
2958 dnl -------------
2959 dnl Compute the object-directory name from the given model name
2960 AC_DEFUN([CF_OBJ_SUBDIR],
2961 [
2962         case $1 in
2963         (libtool) $2='obj_lo'  ;;
2964         (normal)  $2='objects' ;;
2965         (debug)   $2='obj_g' ;;
2966         (profile) $2='obj_p' ;;
2967         (shared)
2968                 case $cf_cv_system_name in
2969                 (cygwin|msys)
2970                         $2='objects' ;;
2971                 (*)
2972                         $2='obj_s' ;;
2973                 esac
2974         esac
2975 ])dnl
2976 dnl ---------------------------------------------------------------------------
2977 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
2978 dnl ----------
2979 dnl Provide a value for the $PATH and similar separator (or amend the value
2980 dnl as provided in autoconf 2.5x).
2981 AC_DEFUN([CF_PATHSEP],
2982 [
2983         AC_MSG_CHECKING(for PATH separator)
2984         case $cf_cv_system_name in
2985         (os2*)  PATH_SEPARATOR=';'  ;;
2986         (*)     ${PATH_SEPARATOR:=':'}  ;;
2987         esac
2988 ifelse([$1],,,[$1=$PATH_SEPARATOR])
2989         AC_SUBST(PATH_SEPARATOR)
2990         AC_MSG_RESULT($PATH_SEPARATOR)
2991 ])dnl
2992 dnl ---------------------------------------------------------------------------
2993 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
2994 dnl --------------
2995 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
2996 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2997 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
2998 dnl delayed evaluation of those symbols.
2999 AC_DEFUN([CF_PATH_SYNTAX],[
3000 if test "x$prefix" != xNONE; then
3001         cf_path_syntax="$prefix"
3002 else
3003         cf_path_syntax="$ac_default_prefix"
3004 fi
3005
3006 case ".[$]$1" in
3007 (.\[$]\(*\)*|.\'*\'*)
3008         ;;
3009 (..|./*|.\\*)
3010         ;;
3011 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3012         ;;
3013 (.\[$]{*prefix}*|.\[$]{*dir}*)
3014         eval $1="[$]$1"
3015         case ".[$]$1" in
3016         (.NONE/*)
3017                 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
3018                 ;;
3019         esac
3020         ;;
3021 (.no|.NONE/*)
3022         $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
3023         ;;
3024 (*)
3025         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3026         ;;
3027 esac
3028 ])dnl
3029 dnl ---------------------------------------------------------------------------
3030 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
3031 dnl -------------
3032 dnl Check for the package-config program, unless disabled by command-line.
3033 AC_DEFUN([CF_PKG_CONFIG],
3034 [
3035 AC_MSG_CHECKING(if you want to use pkg-config)
3036 AC_ARG_WITH(pkg-config,
3037         [  --with-pkg-config{=path} enable/disable use of pkg-config],
3038         [cf_pkg_config=$withval],
3039         [cf_pkg_config=yes])
3040 AC_MSG_RESULT($cf_pkg_config)
3041
3042 case $cf_pkg_config in
3043 (no)
3044         PKG_CONFIG=none
3045         ;;
3046 (yes)
3047         CF_ACVERSION_CHECK(2.52,
3048                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3049                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3050         ;;
3051 (*)
3052         PKG_CONFIG=$withval
3053         ;;
3054 esac
3055
3056 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3057 if test "$PKG_CONFIG" != none ; then
3058         CF_PATH_SYNTAX(PKG_CONFIG)
3059 elif test "x$cf_pkg_config" != xno ; then
3060         AC_MSG_WARN(pkg-config is not installed)
3061 fi
3062
3063 AC_SUBST(PKG_CONFIG)
3064 ])dnl
3065 dnl ---------------------------------------------------------------------------
3066 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3067 dnl -----------------
3068 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3069 dnl
3070 dnl     POSIX.1-1990                            _POSIX_SOURCE
3071 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
3072 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
3073 dnl             Bindings Option
3074 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
3075 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
3076 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
3077 dnl
3078 dnl Parameters:
3079 dnl     $1 is the nominal value for _POSIX_C_SOURCE
3080 AC_DEFUN([CF_POSIX_C_SOURCE],
3081 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3082
3083 if test "$cf_cv_posix_visible" = no; then
3084
3085 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3086
3087 cf_save_CFLAGS="$CFLAGS"
3088 cf_save_CPPFLAGS="$CPPFLAGS"
3089
3090 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3091 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3092
3093 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3094         CF_MSG_LOG(if the symbol is already defined go no further)
3095         AC_TRY_COMPILE([#include <sys/types.h>],[
3096 #ifndef _POSIX_C_SOURCE
3097 make an error
3098 #endif],
3099         [cf_cv_posix_c_source=no],
3100         [cf_want_posix_source=no
3101          case .$cf_POSIX_C_SOURCE in
3102          (.[[12]]??*)
3103                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3104                 ;;
3105          (.2)
3106                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3107                 cf_want_posix_source=yes
3108                 ;;
3109          (.*)
3110                 cf_want_posix_source=yes
3111                 ;;
3112          esac
3113          if test "$cf_want_posix_source" = yes ; then
3114                 AC_TRY_COMPILE([#include <sys/types.h>],[
3115 #ifdef _POSIX_SOURCE
3116 make an error
3117 #endif],[],
3118                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3119          fi
3120          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3121          CFLAGS="$cf_trim_CFLAGS"
3122          CPPFLAGS="$cf_trim_CPPFLAGS"
3123          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3124          CF_MSG_LOG(if the second compile does not leave our definition intact error)
3125          AC_TRY_COMPILE([#include <sys/types.h>],[
3126 #ifndef _POSIX_C_SOURCE
3127 make an error
3128 #endif],,
3129          [cf_cv_posix_c_source=no])
3130          CFLAGS="$cf_save_CFLAGS"
3131          CPPFLAGS="$cf_save_CPPFLAGS"
3132         ])
3133 ])
3134
3135 if test "$cf_cv_posix_c_source" != no ; then
3136         CFLAGS="$cf_trim_CFLAGS"
3137         CPPFLAGS="$cf_trim_CPPFLAGS"
3138         CF_ADD_CFLAGS($cf_cv_posix_c_source)
3139 fi
3140
3141 fi # cf_cv_posix_visible
3142
3143 ])dnl
3144 dnl ---------------------------------------------------------------------------
3145 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3146 dnl ----------------
3147 dnl POSIX documents test-macros which an application may set before any system
3148 dnl headers are included to make features available.
3149 dnl
3150 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3151 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3152 dnl recent features visible in the system header files unless the application
3153 dnl overrides the corresponding test-macros.  Doing that introduces portability
3154 dnl problems.
3155 dnl
3156 dnl This macro makes a special check for the symbols used for this, to avoid a
3157 dnl conflicting definition.
3158 AC_DEFUN([CF_POSIX_VISIBLE],
3159 [
3160 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3161 AC_TRY_COMPILE([#include <stdio.h>],[
3162 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3163         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3164         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3165         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3166 #error conflicting symbols found
3167 #endif
3168 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3169 ])
3170 ])dnl
3171 dnl ---------------------------------------------------------------------------
3172 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3173 dnl ----------
3174 dnl Check for archiver "ar".
3175 AC_DEFUN([CF_PROG_AR],[
3176 AC_CHECK_TOOL(AR, ar, ar)
3177 ])
3178 dnl ---------------------------------------------------------------------------
3179 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3180 dnl -----------
3181 dnl Check for awk, ensure that the check found something.
3182 AC_DEFUN([CF_PROG_AWK],
3183 [
3184 AC_PROG_AWK
3185 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3186 ])dnl
3187 dnl ---------------------------------------------------------------------------
3188 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3189 dnl ----------
3190 dnl standard check for CC, plus followup sanity checks
3191 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3192 AC_DEFUN([CF_PROG_CC],[
3193 CF_ACVERSION_CHECK(2.53,
3194         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3195          AC_REQUIRE([AC_PROG_CC])],
3196         [])
3197 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3198 CF_GCC_VERSION
3199 CF_ACVERSION_CHECK(2.52,
3200         [AC_PROG_CC_STDC],
3201         [CF_ANSI_CC_REQD])
3202 CF_CC_ENV_FLAGS
3203 ])dnl
3204 dnl ---------------------------------------------------------------------------
3205 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
3206 dnl --------------
3207 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3208 dnl the output file can be renamed, and allows for a shell variable that can
3209 dnl be used later.  The parameter is either CC or CXX.  The result is the
3210 dnl cache variable:
3211 dnl     $cf_cv_prog_CC_c_o
3212 dnl     $cf_cv_prog_CXX_c_o
3213 dnl
3214 dnl $1 = compiler
3215 dnl $2 = compiler options, if any
3216 AC_DEFUN([CF_PROG_CC_C_O],
3217 [AC_REQUIRE([AC_PROG_CC])dnl
3218 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3219 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3220 [
3221 cat > conftest.$ac_ext <<CF_EOF
3222 int main(void)
3223 {
3224         ${cf_cv_main_return:-return}(0);
3225 }
3226 CF_EOF
3227 # We do the test twice because some compilers refuse to overwrite an
3228 # existing .o file with -o, though they will create one.
3229 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3230 if AC_TRY_EVAL(ac_try) &&
3231   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3232 then
3233   eval cf_cv_prog_$1_c_o=yes
3234 else
3235   eval cf_cv_prog_$1_c_o=no
3236 fi
3237 rm -rf conftest*
3238 ])dnl
3239 if test $cf_cv_prog_$1_c_o = yes; then
3240   AC_MSG_RESULT([yes])
3241 else
3242   AC_MSG_RESULT([no])
3243 fi
3244 ])dnl
3245 dnl ---------------------------------------------------------------------------
3246 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3247 dnl -------------
3248 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3249 dnl This macro adds a check to ensure the script found something.
3250 AC_DEFUN([CF_PROG_EGREP],
3251 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3252         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3253                 then ac_cv_prog_egrep='grep -E'
3254                 else ac_cv_prog_egrep='egrep'
3255         fi])
3256         EGREP=$ac_cv_prog_egrep
3257         AC_SUBST([EGREP])
3258         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3259 ])dnl
3260 dnl ---------------------------------------------------------------------------
3261 dnl CF_PROG_EXT version: 14 updated: 2018/06/20 20:23:13
3262 dnl -----------
3263 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3264 AC_DEFUN([CF_PROG_EXT],
3265 [
3266 AC_REQUIRE([CF_CHECK_CACHE])
3267 case $cf_cv_system_name in
3268 (os2*)
3269         CFLAGS="$CFLAGS -Zmt"
3270         CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3271         CXXFLAGS="$CXXFLAGS -Zmt"
3272         # autoconf's macro sets -Zexe and suffix both, which conflict:w
3273         LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3274         ac_cv_exeext=.exe
3275         ;;
3276 esac
3277
3278 AC_EXEEXT
3279 AC_OBJEXT
3280
3281 PROG_EXT="$EXEEXT"
3282 AC_SUBST(PROG_EXT)
3283 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3284 ])dnl
3285 dnl ---------------------------------------------------------------------------
3286 dnl CF_PROG_GNAT version: 10 updated: 2019/12/31 08:53:54
3287 dnl ------------
3288 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3289 AC_DEFUN([CF_PROG_GNAT],[
3290 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3291 do
3292         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3293
3294         unset ac_cv_path_cf_TEMP_gnat
3295         unset cf_TEMP_gnat
3296         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3297         eval cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat
3298
3299         if test "x$cf_TEMP_gnat" != xno; then
3300                 unset cf_cv_gnat_version
3301                 unset cf_TEMP_gnat
3302                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3303         fi
3304         eval cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat
3305
3306         unset cf_TEMP_gnat
3307         unset cf_cv_gnat_version
3308         unset ac_cv_path_cf_TEMP_gnat
3309 done
3310
3311 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3312         cf_ada_make=
3313         cf_cv_prog_gnat_correct=no
3314 else
3315         cf_ada_make=gnatmake
3316         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3317                 # gprconfig is newer than gnatmake; we can continue...
3318                 cf_ada_config="##"
3319         else
3320                 rm -rf conftest* *~conftest*
3321                 if mkdir conftest.src
3322                 then
3323                         cf_ada_config=""
3324                         cd conftest.src
3325                         for cf_gprconfig in Ada C
3326                         do
3327                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3328                                 if test $cf_gprconfig = C
3329                                 then
3330                                         for cf_gprconfig_param in \
3331                                                 $cf_gprconfig,,,,GNATGCC \
3332                                                 $cf_gprconfig,,,,GCC \
3333                                                 $cf_gprconfig
3334                                         do
3335                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3336                                                 test -n "$cf_gprconfig_value" && break
3337                                         done
3338                                 else
3339                                         cf_gprconfig_param=$cf_gprconfig
3340                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3341                                 fi
3342                                 if test -n "$cf_gprconfig_value"
3343                                 then
3344                                         eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
3345                                         AC_MSG_RESULT($cf_gprconfig_value)
3346                                 else
3347                                         AC_MSG_RESULT(missing)
3348                                         cf_ada_config="#"
3349                                         break
3350                                 fi
3351                         done
3352                         cd ..
3353                         rm -rf conftest* *~conftest*
3354                 fi
3355         fi
3356         if test "x$cf_ada_config" != "x#"
3357         then
3358                 CF_GNAT_VERSION
3359                 CF_CHECK_GNAT_VERSION
3360                 AC_CHECK_PROG(M4_exists, m4, yes, no)
3361                 if test "$ac_cv_prog_M4_exists" = no; then
3362                         cf_cv_prog_gnat_correct=no
3363                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3364                 fi
3365                 if test "$cf_cv_prog_gnat_correct" = yes; then
3366                         AC_MSG_CHECKING(if GNAT works)
3367                         CF_GNAT_TRY_RUN([procedure conftest;],
3368 [with Text_IO;
3369 with GNAT.OS_Lib;
3370 procedure conftest is
3371 begin
3372    Text_IO.Put ("Hello World");
3373    Text_IO.New_Line;
3374    GNAT.OS_Lib.OS_Exit (0);
3375 end conftest;],
3376 [cf_cv_prog_gnat_correct=yes],
3377 [cf_cv_prog_gnat_correct=no])
3378                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3379                 fi
3380         else
3381                 cf_cv_prog_gnat_correct=no
3382         fi
3383 fi
3384
3385 AC_SUBST(cf_ada_make)
3386 AC_SUBST(cf_ada_config)
3387 AC_SUBST(cf_ada_config_Ada)
3388 AC_SUBST(cf_ada_config_C)
3389 ])dnl
3390 dnl ---------------------------------------------------------------------------
3391 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
3392 dnl ---------------
3393 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
3394 dnl misc/tabset install won't work properly.  Usually this happens only when
3395 dnl using the fallback mkinstalldirs script
3396 AC_DEFUN([CF_PROG_INSTALL],
3397 [AC_PROG_INSTALL
3398 case $INSTALL in
3399 (/*)
3400         ;;
3401 (*)
3402         CF_DIRNAME(cf_dir,$INSTALL)
3403         test -z "$cf_dir" && cf_dir=.
3404         INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
3405         ;;
3406 esac
3407 ])dnl
3408 dnl ---------------------------------------------------------------------------
3409 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3410 dnl ------------
3411 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3412 dnl option if it is supported.
3413 AC_DEFUN([CF_PROG_LN_S],[
3414 AC_PROG_LN_S
3415 AC_MSG_CHECKING(if $LN_S -f options work)
3416
3417 rm -f conf$$.src conf$$dst
3418 echo >conf$$.dst
3419 echo first >conf$$.src
3420 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3421         cf_prog_ln_sf=yes
3422 else
3423         cf_prog_ln_sf=no
3424 fi
3425 rm -f conf$$.dst conf$$src
3426 AC_MSG_RESULT($cf_prog_ln_sf)
3427
3428 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3429 ])dnl
3430 dnl ---------------------------------------------------------------------------
3431 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3432 dnl ----------------
3433 dnl Remove all -U and -D options that refer to the given symbol from a list
3434 dnl of C compiler options.  This works around the problem that not all
3435 dnl compilers process -U and -D options from left-to-right, so a -U option
3436 dnl cannot be used to cancel the effect of a preceding -D option.
3437 dnl
3438 dnl $1 = target (which could be the same as the source variable)
3439 dnl $2 = source (including '$')
3440 dnl $3 = symbol to remove
3441 define([CF_REMOVE_DEFINE],
3442 [
3443 $1=`echo "$2" | \
3444         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
3445                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
3446 ])dnl
3447 dnl ---------------------------------------------------------------------------
3448 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3449 dnl -------------
3450 dnl Remove the given library from the symbol
3451 dnl
3452 dnl $1 = target (which could be the same as the source variable)
3453 dnl $2 = source (including '$')
3454 dnl $3 = library to remove
3455 define([CF_REMOVE_LIB],
3456 [
3457 # remove $3 library from $2
3458 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
3459 ])dnl
3460 dnl ---------------------------------------------------------------------------
3461 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3462 dnl ---------------------
3463 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3464 dnl $1 = name of current macro
3465 define([CF_RESTORE_XTRA_FLAGS],
3466 [
3467 LIBS="$cf_save_LIBS_$1"
3468 CFLAGS="$cf_save_CFLAGS_$1"
3469 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3470 ])dnl
3471 dnl ---------------------------------------------------------------------------
3472 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3473 dnl ------------------
3474 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3475 dnl and libraries which do not update those variables.
3476 dnl
3477 dnl $1 = name of current macro
3478 define([CF_SAVE_XTRA_FLAGS],
3479 [
3480 cf_save_LIBS_$1="$LIBS"
3481 cf_save_CFLAGS_$1="$CFLAGS"
3482 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3483 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3484 for cf_X_CFLAGS in $X_CFLAGS
3485 do
3486         case "x$cf_X_CFLAGS" in
3487         x-[[IUD]]*)
3488                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3489                 ;;
3490         *)
3491                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3492                 ;;
3493         esac
3494 done
3495 ])dnl
3496 dnl ---------------------------------------------------------------------------
3497 dnl CF_SHARED_OPTS version: 94 updated: 2020/02/29 16:09:19
3498 dnl --------------
3499 dnl --------------
3500 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3501 dnl library.
3502 dnl
3503 dnl Notes:
3504 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3505 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3506 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3507 dnl shared library since that can lead to unexpected results at runtime.
3508 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3509 dnl libraries are compiled in ../../lib
3510 dnl
3511 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3512 dnl to install symbolic links to the rel/abi versions of shared libraries.
3513 dnl
3514 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3515 dnl version when making symbolic links.
3516 dnl
3517 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3518 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3519 dnl (ex: libncurses.so.<ver>).
3520 dnl
3521 dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
3522 AC_DEFUN([CF_SHARED_OPTS],
3523 [
3524         AC_REQUIRE([CF_LD_RPATH_OPT])
3525
3526         RM_SHARED_OPTS=
3527         LOCAL_LDFLAGS=
3528         LOCAL_LDFLAGS2=
3529         LD_SHARED_OPTS=
3530         INSTALL_LIB="-m 644"
3531         : ${rel_builddir:=.}
3532
3533         shlibdir=$libdir
3534         AC_SUBST(shlibdir)
3535
3536         MAKE_DLLS="#"
3537         AC_SUBST(MAKE_DLLS)
3538
3539         cf_cv_do_symlinks=no
3540         cf_ld_rpath_opt=
3541         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3542
3543         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3544         AC_ARG_WITH(shlib-version,
3545         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
3546         [test -z "$withval" && withval=auto
3547         case $withval in
3548         (yes)
3549                 cf_cv_shlib_version=auto
3550                 ;;
3551         (rel|abi|auto)
3552                 cf_cv_shlib_version=$withval
3553                 ;;
3554         (*)
3555                 AC_MSG_RESULT($withval)
3556                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3557                 ;;
3558         esac
3559         ],[cf_cv_shlib_version=auto])
3560         AC_MSG_RESULT($cf_cv_shlib_version)
3561
3562         cf_cv_rm_so_locs=no
3563         cf_try_cflags=
3564
3565         # Some less-capable ports of gcc support only -fpic
3566         CC_SHARED_OPTS=
3567
3568         cf_try_fPIC=no
3569         if test "$GCC" = yes
3570         then
3571                 cf_try_fPIC=yes
3572         else
3573                 case $cf_cv_system_name in
3574                 (*linux*)       # e.g., PGI compiler
3575                         cf_try_fPIC=yes
3576                         ;;
3577                 esac
3578         fi
3579
3580         if test "$cf_try_fPIC" = yes
3581         then
3582                 AC_MSG_CHECKING(which $CC option to use)
3583                 cf_save_CFLAGS="$CFLAGS"
3584                 for CC_SHARED_OPTS in -fPIC -fpic ''
3585                 do
3586                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3587                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
3588                 done
3589                 AC_MSG_RESULT($CC_SHARED_OPTS)
3590                 CFLAGS="$cf_save_CFLAGS"
3591         fi
3592
3593         cf_cv_shlib_version_infix=no
3594
3595         case $cf_cv_system_name in
3596         (aix4.[3-9]*|aix[[5-7]]*)
3597                 if test "$GCC" = yes; then
3598                         CC_SHARED_OPTS='-Wl,-brtl'
3599                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3600                 else
3601                         CC_SHARED_OPTS='-brtl'
3602                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
3603                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3604                 fi
3605                 ;;
3606         (beos*)
3607                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
3608                 ;;
3609         (cygwin*)
3610                 CC_SHARED_OPTS=
3611                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3612                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3613                 cf_cv_shlib_version=cygdll
3614                 cf_cv_shlib_version_infix=cygdll
3615                 shlibdir=$bindir
3616                 MAKE_DLLS=
3617                 cat >mk_shared_lib.sh <<-CF_EOF
3618                 #!$SHELL
3619                 SHARED_LIB=\[$]1
3620                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3621                 shift
3622                 cat <<-EOF
3623                 Linking shared library
3624                 ** SHARED_LIB \[$]SHARED_LIB
3625                 ** IMPORT_LIB \[$]IMPORT_LIB
3626 EOF
3627                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3628 CF_EOF
3629                 chmod +x mk_shared_lib.sh
3630                 ;;
3631         (msys*)
3632                 CC_SHARED_OPTS=
3633                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3634                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3635                 cf_cv_shlib_version=msysdll
3636                 cf_cv_shlib_version_infix=msysdll
3637                 shlibdir=$bindir
3638                 MAKE_DLLS=
3639                 cat >mk_shared_lib.sh <<-CF_EOF
3640                 #!$SHELL
3641                 SHARED_LIB=\[$]1
3642                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3643                 shift
3644                 cat <<-EOF
3645                 Linking shared library
3646                 ** SHARED_LIB \[$]SHARED_LIB
3647                 ** IMPORT_LIB \[$]IMPORT_LIB
3648 EOF
3649                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3650 CF_EOF
3651                 chmod +x mk_shared_lib.sh
3652                 ;;
3653         (darwin*)
3654                 cf_try_cflags="no-cpp-precomp"
3655                 CC_SHARED_OPTS="-dynamic"
3656                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
3657                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
3658                 cf_cv_shlib_version_infix=yes
3659                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
3660                         cf_save_LDFLAGS=$LDFLAGS
3661                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3662                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
3663                                 LDFLAGS=$cf_save_LDFLAGS])
3664                 if test $cf_cv_ldflags_search_paths_first = yes; then
3665                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3666                 fi
3667                 ;;
3668         (hpux[[7-8]]*)
3669                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
3670                 if test "$GCC" != yes; then
3671                         CC_SHARED_OPTS='+Z'
3672                 fi
3673                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
3674                 INSTALL_LIB="-m 555"
3675                 ;;
3676         (hpux*)
3677                 # (tested with gcc 2.7.2 -- I don't have c89)
3678                 if test "$GCC" = yes; then
3679                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
3680                 else
3681                         CC_SHARED_OPTS='+Z'
3682                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
3683                 fi
3684                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
3685                 # HP-UX shared libraries must be executable, and should be
3686                 # readonly to exploit a quirk in the memory manager.
3687                 INSTALL_LIB="-m 555"
3688                 ;;
3689         (interix*)
3690                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3691                 if test "$cf_cv_shlib_version" = rel; then
3692                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3693                 else
3694                         cf_shared_soname='`basename $[@]`'
3695                 fi
3696                 CC_SHARED_OPTS=
3697                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
3698                 ;;
3699         (irix*)
3700                 if test "$cf_cv_enable_rpath" = yes ; then
3701                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3702                 fi
3703                 # tested with IRIX 5.2 and 'cc'.
3704                 if test "$GCC" != yes; then
3705                         CC_SHARED_OPTS='-KPIC'
3706                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
3707                 else
3708                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
3709                 fi
3710                 cf_cv_rm_so_locs=yes
3711                 ;;
3712         (linux*|gnu*|k*bsd*-gnu)
3713                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3714                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3715                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3716                 fi
3717                 if test "$cf_cv_enable_rpath" = yes ; then
3718                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3719                 fi
3720                 CF_SHARED_SONAME
3721                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3722                 ;;
3723         (mingw*msvc*)
3724                 cf_cv_shlib_version=mingw
3725                 cf_cv_shlib_version_infix=mingw
3726                 shlibdir=$bindir
3727                 MAKE_DLLS=
3728                 if test "$DFT_LWR_MODEL" = "shared" ; then
3729                         LOCAL_LDFLAGS="-link -dll"
3730                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3731                         EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
3732                 fi
3733                 CC_SHARED_OPTS=
3734                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh $@ ${LD} ${CFLAGS}'
3735                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3736                 cat >mk_shared_lib.sh <<-CF_EOF
3737                 #!$SHELL
3738                 SHARED_LIB=\$1
3739                 IMPORT_LIB=\`echo "\$1" | sed -e 's/[0-9]*\.dll$\.dll.a/'\`
3740                 shift
3741                 my_ld=\$1
3742                 shift
3743                 cat <<-EOF
3744                 Linking shared library
3745                 ** SHARED LIB \$SHARED_LIB
3746                 ** IMPORT_LIB \$IMPORT_LIB
3747 EOF
3748                 args=\$(echo \$* | sed -E "s#-l(\w*)#lib\1.a#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
3749                 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
3750                 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
3751 CF_EOF
3752                 chmod +x mk_shared_lib.sh
3753                 ;;
3754         (mingw*)
3755                 cf_cv_shlib_version=mingw
3756                 cf_cv_shlib_version_infix=mingw
3757                 shlibdir=$bindir
3758                 MAKE_DLLS=
3759                 if test "$DFT_LWR_MODEL" = "shared" ; then
3760                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
3761                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3762                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
3763                 fi
3764                 CC_SHARED_OPTS=
3765                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3766                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3767                 cat >mk_shared_lib.sh <<-CF_EOF
3768                 #!$SHELL
3769                 SHARED_LIB=\[$]1
3770                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3771                 shift
3772                 cat <<-EOF
3773                 Linking shared library
3774                 ** SHARED_LIB \[$]SHARED_LIB
3775                 ** IMPORT_LIB \[$]IMPORT_LIB
3776 EOF
3777                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3778 CF_EOF
3779                 chmod +x mk_shared_lib.sh
3780                 ;;
3781         (openbsd[[2-9]].*|mirbsd*)
3782                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3783                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3784                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3785                 fi
3786                 if test "$cf_cv_enable_rpath" = yes ; then
3787                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3788                 fi
3789                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3790                 CF_SHARED_SONAME
3791                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3792                 ;;
3793         (nto-qnx*|openbsd*|freebsd[[12]].*)
3794                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3795                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
3796                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3797                 ;;
3798         (dragonfly*|freebsd*)
3799                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3800                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3801                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3802                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
3803                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3804                 fi
3805                 CF_SHARED_SONAME
3806                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3807                 ;;
3808         (netbsd*)
3809                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3810                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3811                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3812                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3813                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3814                         if test "$cf_cv_shlib_version" = auto; then
3815                         if test -f /usr/libexec/ld.elf_so; then
3816                                 cf_cv_shlib_version=abi
3817                         else
3818                                 cf_cv_shlib_version=rel
3819                         fi
3820                         fi
3821                         CF_SHARED_SONAME
3822                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
3823                 else
3824                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
3825                 fi
3826                 ;;
3827         (osf*|mls+*)
3828                 # tested with OSF/1 V3.2 and 'cc'
3829                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
3830                 # link with shared libs).
3831                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
3832                 case $host_os in
3833                 (osf4*)
3834                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
3835                         ;;
3836                 esac
3837                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
3838                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3839                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3840                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3841                 fi
3842                 cf_cv_rm_so_locs=yes
3843                 ;;
3844         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
3845                 # tested with osr5.0.5
3846                 if test "$GCC" != yes; then
3847                         CC_SHARED_OPTS='-belf -KPIC'
3848                 fi
3849                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
3850                 if test "$cf_cv_enable_rpath" = yes ; then
3851                         # only way is to set LD_RUN_PATH but no switch for it
3852                         RUN_PATH=$libdir
3853                 fi
3854                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3855                 LINK_PROGS='LD_RUN_PATH=${libdir}'
3856                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
3857                 ;;
3858         (sunos4*)
3859                 # tested with SunOS 4.1.1 and gcc 2.7.0
3860                 if test "$GCC" != yes; then
3861                         CC_SHARED_OPTS='-KPIC'
3862                 fi
3863                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
3864                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3865                 ;;
3866         (solaris2*)
3867                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
3868                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
3869                 if test "$DFT_LWR_MODEL" = "shared" ; then
3870                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
3871                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3872                 fi
3873                 if test "$cf_cv_enable_rpath" = yes ; then
3874                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
3875                 fi
3876                 CF_SHARED_SONAME
3877                 if test "$GCC" != yes; then
3878                         cf_save_CFLAGS="$CFLAGS"
3879                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
3880                         do
3881                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
3882                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
3883                         done
3884                         CFLAGS="$cf_save_CFLAGS"
3885                         CC_SHARED_OPTS=$cf_shared_opts
3886                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3887                 else
3888                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3889                 fi
3890                 ;;
3891         (sysv5uw7*|unix_sv*)
3892                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
3893                 if test "$GCC" != yes; then
3894                         CC_SHARED_OPTS='-KPIC'
3895                 fi
3896                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
3897                 ;;
3898         (*)
3899                 CC_SHARED_OPTS='unknown'
3900                 MK_SHARED_LIB='echo unknown'
3901                 ;;
3902         esac
3903
3904         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
3905         case "$cf_cv_shlib_version" in
3906         (rel|abi)
3907                 case "$MK_SHARED_LIB" in
3908                 (*'-o $[@]')
3909                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
3910                         ;;
3911                 (*)
3912                         AC_MSG_WARN(ignored --with-shlib-version)
3913                         ;;
3914                 esac
3915                 ;;
3916         esac
3917
3918         if test -n "$cf_try_cflags"
3919         then
3920 cat > conftest.$ac_ext <<EOF
3921 #line __oline__ "${as_me:-configure}"
3922 #include <stdio.h>
3923 int main(int argc, char *argv[[]])
3924 {
3925         printf("hello\n");
3926         return (argv[[argc-1]] == 0) ;
3927 }
3928 EOF
3929                 cf_save_CFLAGS="$CFLAGS"
3930                 for cf_opt in $cf_try_cflags
3931                 do
3932                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
3933                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
3934                         if AC_TRY_EVAL(ac_compile); then
3935                                 AC_MSG_RESULT(yes)
3936                                 cf_save_CFLAGS="$CFLAGS"
3937                         else
3938                                 AC_MSG_RESULT(no)
3939                         fi
3940                 done
3941                 CFLAGS="$cf_save_CFLAGS"
3942         fi
3943
3944
3945         # RPATH_LIST is a colon-separated list of directories
3946         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
3947         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
3948
3949         test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
3950
3951         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
3952         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
3953
3954         AC_SUBST(CC_SHARED_OPTS)
3955         AC_SUBST(LD_RPATH_OPT)
3956         AC_SUBST(LD_SHARED_OPTS)
3957         AC_SUBST(MK_SHARED_LIB)
3958         AC_SUBST(RM_SHARED_OPTS)
3959
3960         AC_SUBST(LINK_PROGS)
3961         AC_SUBST(LINK_TESTS)
3962
3963         AC_SUBST(EXTRA_LDFLAGS)
3964         AC_SUBST(LOCAL_LDFLAGS)
3965         AC_SUBST(LOCAL_LDFLAGS2)
3966
3967         AC_SUBST(INSTALL_LIB)
3968         AC_SUBST(RPATH_LIST)
3969 ])dnl
3970 dnl ---------------------------------------------------------------------------
3971 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
3972 dnl ----------------
3973 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
3974 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
3975 dnl option.
3976 dnl
3977 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
3978 dnl If missing, use "rel".
3979 define([CF_SHARED_SONAME],
3980 [
3981         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
3982         if test "$cf_cv_shlib_version" = rel; then
3983                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3984         else
3985                 cf_cv_shared_soname='`basename $[@]`'
3986         fi
3987 ])
3988 dnl ---------------------------------------------------------------------------
3989 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
3990 dnl --------------
3991 dnl     Remove "-g" option from the compiler options
3992 AC_DEFUN([CF_STRIP_G_OPT],
3993 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
3994 dnl ---------------------------------------------------------------------------
3995 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3996 dnl --------------
3997 dnl Construct a search-list for a nonstandard header/lib-file
3998 dnl     $1 = the variable to return as result
3999 dnl     $2 = the package name
4000 dnl     $3 = the subdirectory, e.g., bin, include or lib
4001 AC_DEFUN([CF_SUBDIR_PATH],
4002 [
4003 $1=
4004
4005 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
4006
4007 for cf_subdir_prefix in \
4008         /usr \
4009         /usr/local \
4010         /usr/pkg \
4011         /opt \
4012         /opt/local \
4013         [$]HOME
4014 do
4015         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
4016 done
4017 ])dnl
4018 dnl ---------------------------------------------------------------------------
4019 dnl CF_TERM_HEADER version: 5 updated: 2020/03/19 20:23:48
4020 dnl --------------
4021 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
4022 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
4023 dnl but some packagers change this, breaking various applications.
4024 AC_DEFUN([CF_TERM_HEADER],[
4025 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
4026 case ${cf_cv_ncurses_header} in
4027 (*/ncurses.h|*/ncursesw.h)
4028         cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
4029         ;;
4030 (*)
4031         cf_term_header=term.h
4032         ;;
4033 esac
4034
4035 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
4036 do
4037 AC_TRY_COMPILE([#include <stdio.h>
4038 #include <${cf_cv_ncurses_header:-curses.h}>
4039 #include <$cf_test>
4040 ],[int x = auto_left_margin; (void)x],[
4041         cf_cv_term_header="$cf_test"],[
4042         cf_cv_term_header=unknown
4043         ])
4044         test "$cf_cv_term_header" != unknown && break
4045 done
4046 ])
4047
4048 # Set definitions to allow ifdef'ing to accommodate subdirectories
4049
4050 case $cf_cv_term_header in
4051 (*term.h)
4052         AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
4053         ;;
4054 esac
4055
4056 case $cf_cv_term_header in
4057 (ncurses/term.h)
4058         AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
4059         ;;
4060 (ncursesw/term.h)
4061         AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
4062         ;;
4063 esac
4064 ])dnl
4065 dnl ---------------------------------------------------------------------------
4066 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
4067 dnl ---------------
4068 dnl Define a top_builddir symbol, for applications that need an absolute path.
4069 AC_DEFUN([CF_TOP_BUILDDIR],
4070 [
4071 top_builddir=ifelse($1,,`pwd`,$1)
4072 AC_SUBST(top_builddir)
4073 ])dnl
4074 dnl ---------------------------------------------------------------------------
4075 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
4076 dnl -------------------
4077 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4078 dnl can define it successfully.
4079 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4080 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4081         AC_TRY_COMPILE([
4082 #include <stdlib.h>
4083 #include <string.h>
4084 #include <sys/types.h>
4085 ],[
4086 #ifndef _XOPEN_SOURCE
4087 make an error
4088 #endif],
4089         [cf_cv_xopen_source=no],
4090         [cf_save="$CPPFLAGS"
4091          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4092          AC_TRY_COMPILE([
4093 #include <stdlib.h>
4094 #include <string.h>
4095 #include <sys/types.h>
4096 ],[
4097 #ifdef _XOPEN_SOURCE
4098 make an error
4099 #endif],
4100         [cf_cv_xopen_source=no],
4101         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4102         CPPFLAGS="$cf_save"
4103         ])
4104 ])
4105
4106 if test "$cf_cv_xopen_source" != no ; then
4107         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4108         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4109         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4110         CF_ADD_CFLAGS($cf_temp_xopen_source)
4111 fi
4112 ])
4113 dnl ---------------------------------------------------------------------------
4114 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4115 dnl --------
4116 dnl Make an uppercase version of a variable
4117 dnl $1=uppercase($2)
4118 AC_DEFUN([CF_UPPER],
4119 [
4120 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4121 ])dnl
4122 dnl ---------------------------------------------------------------------------
4123 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
4124 dnl -----------
4125 dnl Check for multibyte support, and if not found, utf8 compatibility library
4126 AC_DEFUN([CF_UTF8_LIB],
4127 [
4128 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4129         cf_save_LIBS="$LIBS"
4130         AC_TRY_LINK([
4131 #include <stdlib.h>],[putwc(0,0);],
4132         [cf_cv_utf8_lib=yes],
4133         [CF_FIND_LINKAGE([
4134 #include <libutf8.h>],[putwc(0,0);],utf8,
4135                 [cf_cv_utf8_lib=add-on],
4136                 [cf_cv_utf8_lib=no])
4137 ])])
4138
4139 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4140 # ncurses/ncursesw:
4141 if test "$cf_cv_utf8_lib" = "add-on" ; then
4142         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4143         CF_ADD_INCDIR($cf_cv_header_path_utf8)
4144         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4145         CF_ADD_LIBS($cf_cv_library_file_utf8)
4146 fi
4147 ])dnl
4148 dnl ---------------------------------------------------------------------------
4149 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4150 dnl ----------
4151 dnl Use AC_VERBOSE w/o the warnings
4152 AC_DEFUN([CF_VERBOSE],
4153 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
4154 CF_MSG_LOG([$1])
4155 ])dnl
4156 dnl ---------------------------------------------------------------------------
4157 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
4158 dnl ---------------
4159 dnl Check for compiler-support for weak symbols.
4160 dnl This works with "recent" gcc.
4161 AC_DEFUN([CF_WEAK_SYMBOLS],[
4162 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
4163
4164 AC_TRY_COMPILE([
4165 #include <stdio.h>],
4166 [
4167 #if defined(__GNUC__)
4168 #  if defined __USE_ISOC99
4169 #    define _cat_pragma(exp)    _Pragma(#exp)
4170 #    define _weak_pragma(exp)   _cat_pragma(weak name)
4171 #  else
4172 #    define _weak_pragma(exp)
4173 #  endif
4174 #  define _declare(name)        __extension__ extern __typeof__(name) name
4175 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
4176 #endif
4177
4178 weak_symbol(fopen);
4179 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
4180 ])
4181 ])dnl
4182 dnl ---------------------------------------------------------------------------
4183 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
4184 dnl --------------------
4185 dnl Command-line option to specify the Ada95 compiler.
4186 AC_DEFUN([CF_WITH_ADA_COMPILER],[
4187 AC_MSG_CHECKING(for ada-compiler)
4188 AC_ARG_WITH(ada-compiler,
4189         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
4190         [cf_ada_compiler=$withval],
4191         [cf_ada_compiler=gnatmake])
4192 AC_SUBST(cf_ada_compiler)
4193 AC_MSG_RESULT($cf_ada_compiler)
4194 ])dnl
4195 dnl ---------------------------------------------------------------------------
4196 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
4197 dnl -------------------
4198 dnl Command-line option to specify where Ada includes will install.
4199 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4200 AC_MSG_CHECKING(for ada-include)
4201 CF_WITH_PATH(ada-include,
4202    [  --with-ada-include=DIR  Ada includes are in DIR],
4203    ADA_INCLUDE,
4204    PREFIX/share/ada/adainclude,
4205    [$]prefix/share/ada/adainclude)
4206 AC_SUBST(ADA_INCLUDE)
4207 AC_MSG_RESULT($ADA_INCLUDE)
4208 ])dnl
4209 dnl ---------------------------------------------------------------------------
4210 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
4211 dnl -------------------
4212 dnl CF_WITH_ADA_LIBNAME
4213 dnl -------------------
4214 dnl Command-line option to specify how to name the resulting Ada library.
4215 dnl $1 = default value
4216 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4217 AC_MSG_CHECKING(for ada-libname)
4218 AC_ARG_WITH(ada-libname,
4219    [  --with-ada-libname=XXX  override default Ada library-name],
4220    ADA_LIBNAME=[$]withval,
4221    ADA_LIBNAME=$1)
4222 case "x$ADA_LIBNAME" in
4223 (x|xyes|xno)
4224         ADA_LIBNAME=$1
4225         ;;
4226 esac
4227 AC_SUBST(ADA_LIBNAME)
4228 AC_MSG_RESULT($ADA_LIBNAME)
4229 ])dnl
4230 dnl ---------------------------------------------------------------------------
4231 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
4232 dnl -------------------
4233 dnl Command-line option to specify where Ada objects will install.
4234 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4235 AC_MSG_CHECKING(for ada-objects)
4236 CF_WITH_PATH(ada-objects,
4237    [  --with-ada-objects=DIR  Ada objects are in DIR],
4238    ADA_OBJECTS,
4239    PREFIX/lib/ada/adalib,
4240    [$]prefix/lib/ada/adalib)
4241 AC_SUBST(ADA_OBJECTS)
4242 AC_MSG_RESULT($ADA_OBJECTS)
4243 ])dnl
4244 dnl ---------------------------------------------------------------------------
4245 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
4246 dnl ---------------------
4247 dnl Command-line option to specify if an Ada95 shared-library should be built,
4248 dnl and optionally what its soname should be.
4249 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4250 AC_REQUIRE([CF_GNAT_PROJECTS])
4251 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
4252 AC_ARG_WITH(ada-sharedlib,
4253         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
4254         [with_ada_sharedlib=$withval],
4255         [with_ada_sharedlib=no])
4256 AC_MSG_RESULT($with_ada_sharedlib)
4257
4258 if test "x$with_ada_sharedlib" != xno
4259 then
4260         if test "x$cf_gnat_projects" != xyes
4261         then
4262                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
4263                 with_ada_sharedlib=no
4264         fi
4265 fi
4266
4267 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4268 MAKE_ADA_SHAREDLIB="#"
4269
4270 if test "x$with_ada_sharedlib" != xno
4271 then
4272         MAKE_ADA_SHAREDLIB=
4273         if test "x$with_ada_sharedlib" != xyes
4274         then
4275                 ADA_SHAREDLIB="$with_ada_sharedlib"
4276         fi
4277 fi
4278
4279 AC_SUBST(ADA_SHAREDLIB)
4280 AC_SUBST(MAKE_ADA_SHAREDLIB)
4281 ])dnl
4282 dnl ---------------------------------------------------------------------------
4283 dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
4284 dnl ------------------
4285 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4286 dnl libraries.
4287 AC_DEFUN([CF_WITH_CURSES_DIR],[
4288
4289 AC_MSG_CHECKING(for specific curses-directory)
4290 AC_ARG_WITH(curses-dir,
4291         [  --with-curses-dir=DIR   directory in which (n)curses is installed],
4292         [cf_cv_curses_dir=$withval],
4293         [cf_cv_curses_dir=no])
4294 AC_MSG_RESULT($cf_cv_curses_dir)
4295
4296 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
4297 then
4298         CF_PATH_SYNTAX(withval)
4299         if test -d "$cf_cv_curses_dir"
4300         then
4301                 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4302                 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4303         fi
4304 fi
4305 ])dnl
4306 dnl ---------------------------------------------------------------------------
4307 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
4308 dnl ------------------
4309 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
4310 dnl "lib" prefix, e.g., because it used the dll naming convention.
4311 dnl
4312 dnl $1 = variable to set
4313 AC_DEFUN([CF_WITH_LIB_PREFIX],
4314 [
4315 AC_MSG_CHECKING(if you want to have a library-prefix)
4316 AC_ARG_WITH(lib-prefix,
4317         [  --with-lib-prefix       override library-prefix],
4318         [with_lib_prefix=$withval],
4319         [with_lib_prefix=auto])
4320 AC_MSG_RESULT($with_lib_prefix)
4321
4322 if test $with_lib_prefix = auto
4323 then
4324         CF_LIB_PREFIX($1)
4325 elif test $with_lib_prefix = no
4326 then
4327         LIB_PREFIX=
4328 else
4329         LIB_PREFIX=$with_lib_prefix
4330 fi
4331 ])dnl
4332 dnl ---------------------------------------------------------------------------
4333 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
4334 dnl ------------
4335 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4336 dnl defaulting to yes/no.
4337 dnl
4338 dnl $1 = option name
4339 dnl $2 = help-text
4340 dnl $3 = environment variable to set
4341 dnl $4 = default value, shown in the help-message, must be a constant
4342 dnl $5 = default value, if it's an expression & cannot be in the help-message
4343 dnl
4344 AC_DEFUN([CF_WITH_PATH],
4345 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4346 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4347 if ifelse([$5],,true,[test -n "$5"]) ; then
4348 CF_PATH_SYNTAX(withval)
4349 fi
4350 eval $3="$withval"
4351 AC_SUBST($3)dnl
4352 ])dnl
4353 dnl ---------------------------------------------------------------------------
4354 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
4355 dnl -------------------------
4356 dnl Allow the choice of the pkg-config library directory to be overridden.
4357 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4358
4359 case $PKG_CONFIG in
4360 (no|none|yes)
4361         AC_MSG_CHECKING(for pkg-config library directory)
4362         ;;
4363 (*)
4364         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4365         ;;
4366 esac
4367
4368 PKG_CONFIG_LIBDIR=no
4369 AC_ARG_WITH(pkg-config-libdir,
4370         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4371         [PKG_CONFIG_LIBDIR=$withval],
4372         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
4373
4374 case x$PKG_CONFIG_LIBDIR in
4375 (x/*)
4376         ;;
4377 (xyes)
4378         # Look for the library directory using the same prefix as the executable
4379         if test "x$PKG_CONFIG" = xnone
4380         then
4381                 cf_path=$prefix
4382         else
4383                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
4384         fi
4385
4386         # If you don't like using the default architecture, you have to specify the
4387         # intended library directory and corresponding compiler/linker options.
4388         #
4389         # This case allows for Debian's 2014-flavor of multiarch, along with the
4390         # most common variations before that point.  Some other variants spell the
4391         # directory differently, e.g., "pkg-config", and put it in unusual places.
4392         # pkg-config has always been poorly standardized, which is ironic...
4393         case x`(arch) 2>/dev/null` in
4394         (*64)
4395                 cf_search_path="\
4396                         $cf_path/lib/*64-linux-gnu \
4397                         $cf_path/share \
4398                         $cf_path/lib64 \
4399                         $cf_path/lib32 \
4400                         $cf_path/lib"
4401                 ;;
4402         (*)
4403                 cf_search_path="\
4404                         $cf_path/lib/*-linux-gnu \
4405                         $cf_path/share \
4406                         $cf_path/lib32 \
4407                         $cf_path/lib \
4408                         $cf_path/libdata"
4409                 ;;
4410         esac
4411
4412         CF_VERBOSE(list...)
4413         for cf_config in $cf_search_path
4414         do
4415                 CF_VERBOSE(checking $cf_config/pkgconfig)
4416                 if test -d $cf_config/pkgconfig
4417                 then
4418                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
4419                         AC_MSG_CHECKING(done)
4420                         break
4421                 fi
4422         done
4423         ;;
4424 (*)
4425         ;;
4426 esac
4427
4428 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
4429         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4430 fi
4431
4432 AC_SUBST(PKG_CONFIG_LIBDIR)
4433 ])dnl
4434 dnl ---------------------------------------------------------------------------
4435 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
4436 dnl ---------------
4437 dnl Check for POSIX thread library.
4438 AC_DEFUN([CF_WITH_PTHREAD],
4439 [
4440 AC_MSG_CHECKING(if you want to link with the pthread library)
4441 AC_ARG_WITH(pthread,
4442         [  --with-pthread          use POSIX thread library],
4443         [with_pthread=$withval],
4444         [with_pthread=no])
4445 AC_MSG_RESULT($with_pthread)
4446
4447 if test "$with_pthread" != no ; then
4448         AC_CHECK_HEADER(pthread.h,[
4449         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
4450
4451         for cf_lib_pthread in pthread c_r
4452         do
4453             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
4454             cf_save_LIBS="$LIBS"
4455             CF_ADD_LIB($cf_lib_pthread)
4456             AC_TRY_LINK([
4457 #include <pthread.h>
4458 ],[
4459                 int rc = pthread_create(0,0,0,0);
4460                 int r2 = pthread_mutexattr_settype(0, 0);
4461 ],[with_pthread=yes],[with_pthread=no])
4462             LIBS="$cf_save_LIBS"
4463             AC_MSG_RESULT($with_pthread)
4464             test "$with_pthread" = yes && break
4465         done
4466
4467         if test "$with_pthread" = yes ; then
4468             CF_ADD_LIB($cf_lib_pthread)
4469             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
4470         else
4471             AC_MSG_ERROR(Cannot link with pthread library)
4472         fi
4473         ])
4474 fi
4475 ])
4476 dnl ---------------------------------------------------------------------------
4477 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
4478 dnl ---------------
4479 dnl For testing, override the derived host system-type which is used to decide
4480 dnl things such as the linker commands used to build shared libraries.  This is
4481 dnl normally chosen automatically based on the type of system which you are
4482 dnl building on.  We use it for testing the configure script.
4483 dnl
4484 dnl This is different from the --host option: it is used only for testing parts
4485 dnl of the configure script which would not be reachable with --host since that
4486 dnl relies on the build environment being real, rather than mocked up.
4487 AC_DEFUN([CF_WITH_SYSTYPE],[
4488 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
4489 AC_ARG_WITH(system-type,
4490         [  --with-system-type=XXX  test: override derived host system-type],
4491 [AC_MSG_WARN(overriding system type to $withval)
4492         cf_cv_system_name=$withval
4493         host_os=$withval
4494 ])
4495 ])dnl
4496 dnl ---------------------------------------------------------------------------
4497 dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
4498 dnl ---------------
4499 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4500 dnl or adapt to the vendor's definitions to get equivalent functionality,
4501 dnl without losing the common non-POSIX features.
4502 dnl
4503 dnl Parameters:
4504 dnl     $1 is the nominal value for _XOPEN_SOURCE
4505 dnl     $2 is the nominal value for _POSIX_C_SOURCE
4506 AC_DEFUN([CF_XOPEN_SOURCE],[
4507 AC_REQUIRE([AC_CANONICAL_HOST])
4508 AC_REQUIRE([CF_POSIX_VISIBLE])
4509
4510 if test "$cf_cv_posix_visible" = no; then
4511
4512 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4513 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4514 cf_xopen_source=
4515
4516 case $host_os in
4517 (aix[[4-7]]*)
4518         cf_xopen_source="-D_ALL_SOURCE"
4519         ;;
4520 (msys)
4521         cf_XOPEN_SOURCE=600
4522         ;;
4523 (darwin[[0-8]].*)
4524         cf_xopen_source="-D_APPLE_C_SOURCE"
4525         ;;
4526 (darwin*)
4527         cf_xopen_source="-D_DARWIN_C_SOURCE"
4528         cf_XOPEN_SOURCE=
4529         ;;
4530 (freebsd*|dragonfly*|midnightbsd*)
4531         # 5.x headers associate
4532         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4533         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4534         cf_POSIX_C_SOURCE=200112L
4535         cf_XOPEN_SOURCE=600
4536         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4537         ;;
4538 (hpux11*)
4539         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4540         ;;
4541 (hpux*)
4542         cf_xopen_source="-D_HPUX_SOURCE"
4543         ;;
4544 (irix[[56]].*)
4545         cf_xopen_source="-D_SGI_SOURCE"
4546         cf_XOPEN_SOURCE=
4547         ;;
4548 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4549         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4550         ;;
4551 (minix*)
4552         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4553         ;;
4554 (mirbsd*)
4555         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4556         cf_XOPEN_SOURCE=
4557         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4558         ;;
4559 (netbsd*)
4560         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4561         ;;
4562 (openbsd[[4-9]]*)
4563         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4564         cf_xopen_source="-D_BSD_SOURCE"
4565         cf_XOPEN_SOURCE=600
4566         ;;
4567 (openbsd*)
4568         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4569         ;;
4570 (osf[[45]]*)
4571         cf_xopen_source="-D_OSF_SOURCE"
4572         ;;
4573 (nto-qnx*)
4574         cf_xopen_source="-D_QNX_SOURCE"
4575         ;;
4576 (sco*)
4577         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4578         ;;
4579 (solaris2.*)
4580         cf_xopen_source="-D__EXTENSIONS__"
4581         cf_cv_xopen_source=broken
4582         ;;
4583 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4584         cf_XOPEN_SOURCE=
4585         cf_POSIX_C_SOURCE=
4586         ;;
4587 (*)
4588         CF_TRY_XOPEN_SOURCE
4589         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4590         ;;
4591 esac
4592
4593 if test -n "$cf_xopen_source" ; then
4594         CF_ADD_CFLAGS($cf_xopen_source,true)
4595 fi
4596
4597 dnl In anything but the default case, we may have system-specific setting
4598 dnl which is still not guaranteed to provide all of the entrypoints that
4599 dnl _XOPEN_SOURCE would yield.
4600 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4601         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4602         AC_TRY_COMPILE([#include <stdlib.h>],[
4603 #ifndef _XOPEN_SOURCE
4604 make an error
4605 #endif],
4606         [cf_XOPEN_SOURCE_set=yes],
4607         [cf_XOPEN_SOURCE_set=no])
4608         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4609         if test $cf_XOPEN_SOURCE_set = yes
4610         then
4611                 AC_TRY_COMPILE([#include <stdlib.h>],[
4612 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4613 make an error
4614 #endif],
4615                 [cf_XOPEN_SOURCE_set_ok=yes],
4616                 [cf_XOPEN_SOURCE_set_ok=no])
4617                 if test $cf_XOPEN_SOURCE_set_ok = no
4618                 then
4619                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4620                 fi
4621         else
4622                 CF_TRY_XOPEN_SOURCE
4623         fi
4624 fi
4625 fi # cf_cv_posix_visible
4626 ])