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 1.154 2020/02/27 10:21:59 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: 3 updated: 2020/01/11 18:39:22
 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)],[
 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: 3 updated: 2020/01/11 18:39:22
 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)],[
 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: 17 updated: 2015/04/12 15:39:00
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__ "${as_me:-configure}"
1182 #include "confdefs.h"
1183 #include "conftest.h"
1184 #include "conftest.i"
1185 #if     GCC_PRINTF
1186 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1187 #else
1188 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1189 #endif
1190 #if     GCC_SCANF
1191 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
1192 #else
1193 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
1194 #endif
1195 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1196 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
1197 extern void foo(void) GCC_NORETURN;
1198 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
1199 EOF
1200         cf_printf_attribute=no
1201         cf_scanf_attribute=no
1202         for cf_attribute in scanf printf unused noreturn
1203         do
1204                 CF_UPPER(cf_ATTRIBUTE,$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,[$2]))
1972                 ;;
1973         esac
1974 fi
1975 ])dnl
1976 dnl ---------------------------------------------------------------------------
1977 dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
1978 dnl ------------
1979 dnl Add checks for large file support.
1980 AC_DEFUN([CF_LARGEFILE],[
1981 ifdef([AC_FUNC_FSEEKO],[
1982         AC_SYS_LARGEFILE
1983         if test "$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                 ],
2018                 [cf_cv_struct_dirent64=yes],
2019                 [cf_cv_struct_dirent64=no])
2020         ])
2021         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2022         fi
2023 ])
2024 ])
2025 dnl ---------------------------------------------------------------------------
2026 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
2027 dnl ---------------
2028 dnl For the given system and compiler, find the compiler flags to pass to the
2029 dnl loader to use the "rpath" feature.
2030 AC_DEFUN([CF_LD_RPATH_OPT],
2031 [
2032 AC_REQUIRE([CF_CHECK_CACHE])
2033
2034 LD_RPATH_OPT=
2035 if test "x$cf_cv_enable_rpath" != xno
2036 then
2037         AC_MSG_CHECKING(for an rpath option)
2038         case $cf_cv_system_name in
2039         (irix*)
2040                 if test "$GCC" = yes; then
2041                         LD_RPATH_OPT="-Wl,-rpath,"
2042                 else
2043                         LD_RPATH_OPT="-rpath "
2044                 fi
2045                 ;;
2046         (linux*|gnu*|k*bsd*-gnu|freebsd*)
2047                 LD_RPATH_OPT="-Wl,-rpath,"
2048                 ;;
2049         (openbsd[[2-9]].*|mirbsd*)
2050                 LD_RPATH_OPT="-Wl,-rpath,"
2051                 ;;
2052         (dragonfly*)
2053                 LD_RPATH_OPT="-rpath "
2054                 ;;
2055         (netbsd*)
2056                 LD_RPATH_OPT="-Wl,-rpath,"
2057                 ;;
2058         (osf*|mls+*)
2059                 LD_RPATH_OPT="-rpath "
2060                 ;;
2061         (solaris2*)
2062                 LD_RPATH_OPT="-R"
2063                 ;;
2064         (*)
2065                 ;;
2066         esac
2067         AC_MSG_RESULT($LD_RPATH_OPT)
2068
2069         case "x$LD_RPATH_OPT" in
2070         (x-R*)
2071                 AC_MSG_CHECKING(if we need a space after rpath option)
2072                 cf_save_LIBS="$LIBS"
2073                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2074                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2075                 LIBS="$cf_save_LIBS"
2076                 AC_MSG_RESULT($cf_rpath_space)
2077                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2078                 ;;
2079         esac
2080 fi
2081 ])dnl
2082 dnl ---------------------------------------------------------------------------
2083 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
2084 dnl ---------------
2085 dnl Construct a search-list of directories for a nonstandard library-file
2086 dnl
2087 dnl Parameters
2088 dnl     $1 = the variable to return as result
2089 dnl     $2 = the package name
2090 AC_DEFUN([CF_LIBRARY_PATH],
2091 [
2092 $1=
2093 cf_library_path_list=""
2094 if test -n "${LDFLAGS}${LIBS}" ; then
2095         for cf_library_path in $LDFLAGS $LIBS
2096         do
2097                 case $cf_library_path in
2098                 (-L*)
2099                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2100                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2101                         cf_library_path_list="$cf_library_path_list [$]$1"
2102                         ;;
2103                 esac
2104         done
2105 fi
2106
2107 CF_SUBDIR_PATH($1,$2,lib)
2108
2109 $1="$cf_library_path_list [$]$1"
2110 ])dnl
2111 dnl ---------------------------------------------------------------------------
2112 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
2113 dnl -------------
2114 dnl Compute the library-prefix for the given host system
2115 dnl $1 = variable to set
2116 define([CF_LIB_PREFIX],
2117 [
2118         case $cf_cv_system_name in
2119         (OS/2*|os2*)
2120                 if test "$DFT_LWR_MODEL" = libtool; then
2121                         LIB_PREFIX='lib'
2122                 else
2123                         LIB_PREFIX=''
2124                 fi
2125                 ;;
2126         (*)     LIB_PREFIX='lib'
2127                 ;;
2128         esac
2129 ifelse($1,,,[$1=$LIB_PREFIX])
2130         AC_SUBST(LIB_PREFIX)
2131 ])dnl
2132 dnl ---------------------------------------------------------------------------
2133 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
2134 dnl -------------
2135 dnl Compute the library file-suffix from the given model name
2136 dnl $1 = model name
2137 dnl $2 = variable to set (the nominal library suffix)
2138 dnl $3 = dependency variable to set (actual filename)
2139 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2140 AC_DEFUN([CF_LIB_SUFFIX],
2141 [
2142         case X$1 in
2143         (Xlibtool)
2144                 $2='.la'
2145                 $3=[$]$2
2146                 ;;
2147         (Xdebug)
2148                 $2='_g.a'
2149                 $3=[$]$2
2150                 ;;
2151         (Xprofile)
2152                 $2='_p.a'
2153                 $3=[$]$2
2154                 ;;
2155         (Xshared)
2156                 case $cf_cv_system_name in
2157                 (aix[[5-7]]*)
2158                         $2='.so'
2159                         $3=[$]$2
2160                         ;;
2161                 (cygwin*|msys*|mingw*)
2162                         $2='.dll'
2163                         $3='.dll.a'
2164                         ;;
2165                 (darwin*)
2166                         $2='.dylib'
2167                         $3=[$]$2
2168                         ;;
2169                 (hpux*)
2170                         case $target in
2171                         (ia64*)
2172                                 $2='.so'
2173                                 $3=[$]$2
2174                                 ;;
2175                         (*)
2176                                 $2='.sl'
2177                                 $3=[$]$2
2178                                 ;;
2179                         esac
2180                         ;;
2181                 (*)
2182                         $2='.so'
2183                         $3=[$]$2
2184                         ;;
2185                 esac
2186                 ;;
2187         (*)
2188                 $2='.a'
2189                 $3=[$]$2
2190                 ;;
2191         esac
2192         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2193         then
2194                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2195                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2196         fi
2197 ])dnl
2198 dnl ---------------------------------------------------------------------------
2199 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2200 dnl -----------
2201 dnl Compute the string to append to -library from the given model name
2202 dnl $1 = model name
2203 dnl $2 = variable to set
2204 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2205 AC_DEFUN([CF_LIB_TYPE],
2206 [
2207         case $1 in
2208         (libtool) $2=''   ;;
2209         (normal)  $2=''   ;;
2210         (debug)   $2='_g' ;;
2211         (profile) $2='_p' ;;
2212         (shared)  $2=''   ;;
2213         esac
2214         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2215 ])dnl
2216 dnl ---------------------------------------------------------------------------
2217 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2218 dnl ----------------
2219 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2220 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
2221 dnl have to provide wrappers for global tables to ensure they're linked
2222 dnl properly.
2223 AC_DEFUN([CF_LINK_DATAONLY],
2224 [
2225 AC_MSG_CHECKING([if data-only library module links])
2226 AC_CACHE_VAL(cf_cv_link_dataonly,[
2227         rm -f conftest.a
2228         cat >conftest.$ac_ext <<EOF
2229 #line __oline__ "configure"
2230 int     testdata[[3]] = { 123, 456, 789 };
2231 EOF
2232         if AC_TRY_EVAL(ac_compile) ; then
2233                 mv conftest.o data.o && \
2234                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2235         fi
2236         rm -f conftest.$ac_ext data.o
2237         cat >conftest.$ac_ext <<EOF
2238 #line __oline__ "configure"
2239 int     testfunc(void)
2240 {
2241 #if defined(NeXT)
2242         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
2243 #else
2244         extern int testdata[[3]];
2245         return testdata[[0]] == 123
2246            &&  testdata[[1]] == 456
2247            &&  testdata[[2]] == 789;
2248 #endif
2249 }
2250 EOF
2251         if AC_TRY_EVAL(ac_compile); then
2252                 mv conftest.o func.o && \
2253                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2254         fi
2255         rm -f conftest.$ac_ext func.o
2256         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2257         cf_saveLIBS="$LIBS"
2258         LIBS="conftest.a $LIBS"
2259         AC_TRY_RUN([
2260         int main(void)
2261         {
2262                 extern int testfunc();
2263                 ${cf_cv_main_return:-return} (!testfunc());
2264         }
2265         ],
2266         [cf_cv_link_dataonly=yes],
2267         [cf_cv_link_dataonly=no],
2268         [cf_cv_link_dataonly=unknown])
2269         LIBS="$cf_saveLIBS"
2270         ])
2271 AC_MSG_RESULT($cf_cv_link_dataonly)
2272
2273 if test "$cf_cv_link_dataonly" = no ; then
2274         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2275         BROKEN_LINKER=1
2276 fi
2277 AC_SUBST(BROKEN_LINKER)
2278
2279 ])dnl
2280 dnl ---------------------------------------------------------------------------
2281 dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
2282 dnl ------------
2283 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2284 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
2285 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2286 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2287 AC_DEFUN([CF_MAKEFLAGS],
2288 [
2289 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2290         cf_cv_makeflags=''
2291         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2292         do
2293                 cat >cf_makeflags.tmp <<CF_EOF
2294 SHELL = $SHELL
2295 all :
2296         @ echo '.$cf_option'
2297 CF_EOF
2298                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[   ]]*$,,'`
2299                 case "$cf_result" in
2300                 (.*k|.*kw)
2301                         cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
2302                         case "$cf_result" in
2303                         (.*CC=*)        cf_cv_makeflags=
2304                                 ;;
2305                         (*)     cf_cv_makeflags=$cf_option
2306                                 ;;
2307                         esac
2308                         break
2309                         ;;
2310                 (.-)
2311                         ;;
2312                 (*)
2313                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2314                         ;;
2315                 esac
2316         done
2317         rm -f cf_makeflags.tmp
2318 ])
2319
2320 AC_SUBST(cf_cv_makeflags)
2321 ])dnl
2322 dnl ---------------------------------------------------------------------------
2323 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2324 dnl ------------
2325 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
2326 dnl a monocase filesystem.
2327 AC_DEFUN([CF_MAKE_TAGS],[
2328 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2329
2330 AC_CHECK_PROGS(CTAGS, exctags ctags)
2331 AC_CHECK_PROGS(ETAGS, exetags etags)
2332
2333 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2334
2335 if test "$cf_cv_mixedcase" = yes ; then
2336         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2337 else
2338         MAKE_UPPER_TAGS=no
2339 fi
2340
2341 if test "$MAKE_UPPER_TAGS" = yes ; then
2342         MAKE_UPPER_TAGS=
2343 else
2344         MAKE_UPPER_TAGS="#"
2345 fi
2346
2347 if test "$MAKE_LOWER_TAGS" = yes ; then
2348         MAKE_LOWER_TAGS=
2349 else
2350         MAKE_LOWER_TAGS="#"
2351 fi
2352
2353 AC_SUBST(CTAGS)
2354 AC_SUBST(ETAGS)
2355
2356 AC_SUBST(MAKE_UPPER_TAGS)
2357 AC_SUBST(MAKE_LOWER_TAGS)
2358 ])dnl
2359 dnl ---------------------------------------------------------------------------
2360 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
2361 dnl ----------------------
2362 dnl Check if the file-system supports mixed-case filenames.  If we're able to
2363 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2364 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2365 [
2366 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2367 if test "$cross_compiling" = yes ; then
2368         case $target_alias in
2369         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
2370                 cf_cv_mixedcase=no
2371                 ;;
2372         (*)
2373                 cf_cv_mixedcase=yes
2374                 ;;
2375         esac
2376 else
2377         rm -f conftest CONFTEST
2378         echo test >conftest
2379         if test -f CONFTEST ; then
2380                 cf_cv_mixedcase=no
2381         else
2382                 cf_cv_mixedcase=yes
2383         fi
2384         rm -f conftest CONFTEST
2385 fi
2386 ])
2387 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2388 ])dnl
2389 dnl ---------------------------------------------------------------------------
2390 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
2391 dnl ----------
2392 dnl Check for a working mkstemp.  This creates two files, checks that they are
2393 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2394 AC_DEFUN([CF_MKSTEMP],[
2395 AC_CHECK_HEADERS( \
2396 unistd.h \
2397 )
2398 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2399 rm -rf conftest*
2400 AC_TRY_RUN([
2401 #include <sys/types.h>
2402 #ifdef HAVE_UNISTD_H
2403 #include <unistd.h>
2404 #endif
2405 #include <stdlib.h>
2406 #include <stdio.h>
2407 #include <string.h>
2408 #include <sys/stat.h>
2409 int main(void)
2410 {
2411         char *tmpl = "conftestXXXXXX";
2412         char name[2][80];
2413         int n;
2414         int result = 0;
2415         int fd;
2416         struct stat sb;
2417
2418         umask(077);
2419         for (n = 0; n < 2; ++n) {
2420                 strcpy(name[n], tmpl);
2421                 if ((fd = mkstemp(name[n])) >= 0) {
2422                         if (!strcmp(name[n], tmpl)
2423                          || stat(name[n], &sb) != 0
2424                          || (sb.st_mode & S_IFMT) != S_IFREG
2425                          || (sb.st_mode & 077) != 0) {
2426                                 result = 1;
2427                         }
2428                         close(fd);
2429                 }
2430         }
2431         if (result == 0
2432          && !strcmp(name[0], name[1]))
2433                 result = 1;
2434         ${cf_cv_main_return:-return}(result);
2435 }
2436 ],[cf_cv_func_mkstemp=yes
2437 ],[cf_cv_func_mkstemp=no
2438 ],[cf_cv_func_mkstemp=maybe])
2439 ])
2440 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2441         AC_CHECK_FUNC(mkstemp)
2442 fi
2443 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2444         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2445 fi
2446 ])dnl
2447 dnl ---------------------------------------------------------------------------
2448 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2449 dnl ----------
2450 dnl Write a debug message to config.log, along with the line number in the
2451 dnl configure script.
2452 AC_DEFUN([CF_MSG_LOG],[
2453 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2454 ])dnl
2455 dnl ---------------------------------------------------------------------------
2456 dnl CF_NCURSES_ADDON version: 5 updated: 2015/04/26 18:06:58
2457 dnl ----------------
2458 dnl Configure an ncurses add-on, built outside the ncurses tree.
2459 AC_DEFUN([CF_NCURSES_ADDON],[
2460 AC_REQUIRE([CF_NCURSES_CONFIG])
2461
2462 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2463
2464 AC_MSG_CHECKING(if you want wide-character code)
2465 AC_ARG_ENABLE(widec,
2466         [  --enable-widec          compile with wide-char/UTF-8 code],
2467         [with_widec=$enableval],
2468         [with_widec=no])
2469 AC_MSG_RESULT($with_widec)
2470 if test "$with_widec" = yes ; then
2471         CF_UTF8_LIB
2472         CF_NCURSES_CONFIG(ncursesw)
2473 else
2474         CF_NCURSES_CONFIG(ncurses)
2475 fi
2476
2477 if test "$NCURSES_CONFIG_PKG" != none ; then
2478         cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2479
2480         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2481         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2482         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2483
2484         cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2485         if test -z "$cf_cv_abi_version"
2486         then
2487                 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2488         fi
2489
2490 elif test "$NCURSES_CONFIG" != none ; then
2491
2492         cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2493
2494         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2495         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2496         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2497
2498         # ABI version is not available from headers
2499         cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2500
2501 else
2502
2503         for cf_name in MAJOR MINOR PATCH
2504         do
2505         cat >conftest.$ac_ext <<CF_EOF
2506         #include <${cf_cv_ncurses_header:-curses.h}>
2507         AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2508 CF_EOF
2509                 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2510                 AC_TRY_EVAL(cf_try)
2511                 if test -f conftest.out ; then
2512                         cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[  ]][[    ]]*//"`
2513                         eval NCURSES_$cf_name=\"$cf_result\"
2514                         # cat conftest.$ac_ext
2515                         # cat conftest.out
2516                 fi
2517         done
2518
2519         cf_cv_abi_version=${NCURSES_MAJOR}
2520
2521 fi
2522
2523 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2524
2525 dnl Show the computed version, for logging
2526 cf_cv_timestamp=`date`
2527
2528 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2529
2530 dnl We need these values in the generated headers
2531 AC_SUBST(NCURSES_MAJOR)
2532 AC_SUBST(NCURSES_MINOR)
2533 AC_SUBST(NCURSES_PATCH)
2534
2535 dnl We need these values in the generated makefiles
2536 AC_SUBST(cf_cv_rel_version)
2537 AC_SUBST(cf_cv_abi_version)
2538
2539 dnl FIXME - not needed for Ada95
2540 AC_SUBST(cf_cv_builtin_bool)
2541 AC_SUBST(cf_cv_header_stdbool_h)
2542 AC_SUBST(cf_cv_type_of_bool)dnl
2543
2544 ])
2545 dnl ---------------------------------------------------------------------------
2546 dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
2547 dnl -------------------
2548 dnl Check if we can compile with ncurses' header file
2549 dnl $1 is the cache variable to set
2550 dnl $2 is the header-file to include
2551 dnl $3 is the root name (ncurses or ncursesw)
2552 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2553         AC_TRY_COMPILE([
2554 ]ifelse($3,ncursesw,[
2555 #define _XOPEN_SOURCE_EXTENDED
2556 #undef  HAVE_LIBUTF8_H  /* in case we used CF_UTF8_LIB */
2557 #define HAVE_LIBUTF8_H  /* to force ncurses' header file to use cchar_t */
2558 ])[
2559 #include <$2>],[
2560 #ifdef NCURSES_VERSION
2561 ]ifelse($3,ncursesw,[
2562 #ifndef WACS_BSSB
2563         make an error
2564 #endif
2565 ])[
2566 printf("%s\n", NCURSES_VERSION);
2567 #else
2568 #ifdef __NCURSES_H
2569 printf("old\n");
2570 #else
2571         make an error
2572 #endif
2573 #endif
2574         ]
2575         ,[$1=$2]
2576         ,[$1=no])
2577 ])dnl
2578 dnl ---------------------------------------------------------------------------
2579 dnl CF_NCURSES_CONFIG version: 23 updated: 2020/02/27 05:21:59
2580 dnl -----------------
2581 dnl Tie together the configure-script macros for ncurses, preferring these in
2582 dnl order:
2583 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2584 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2585 dnl c) just plain libraries
2586 dnl
2587 dnl $1 is the root library name (default: "ncurses")
2588 AC_DEFUN([CF_NCURSES_CONFIG],[
2589 AC_REQUIRE([CF_PKG_CONFIG])
2590 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2591 cf_have_ncuconfig=no
2592
2593 if test "x${PKG_CONFIG:=none}" != xnone; then
2594         AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2595         if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2596                 AC_MSG_RESULT(yes)
2597
2598                 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2599                 cf_have_ncuconfig=unknown
2600
2601                 cf_save_CFLAGS="$CFLAGS"
2602                 cf_save_CPPFLAGS="$CPPFLAGS"
2603                 cf_save_LIBS="$LIBS"
2604
2605                 cf_pkg_cflags=`$PKG_CONFIG --cflags $cf_ncuconfig_root`
2606                 cf_pkg_libs=`$PKG_CONFIG --libs $cf_ncuconfig_root`
2607
2608                 # while -W for passing linker flags is prevalent, it is not "standard".
2609                 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2610                 # incompatible _and_ non-standard -W option which gives an error.  Work
2611                 # around that pitfall.
2612                 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2613                 (x*c[[89]]9@@*-W*)
2614                         CF_ADD_CFLAGS($cf_pkg_cflags)
2615                         CF_ADD_LIBS($cf_pkg_libs)
2616
2617                         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2618                                 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2619                                 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2620                                         int main(void)
2621                                         { char *xx = curses_version(); return (xx == 0); }],
2622                                         [cf_test_ncuconfig=yes],
2623                                         [cf_test_ncuconfig=no],
2624                                         [cf_test_ncuconfig=maybe])],
2625                                 [cf_test_ncuconfig=no])
2626
2627                         CFLAGS="$cf_save_CFLAGS"
2628                         CPPFLAGS="$cf_save_CPPFLAGS"
2629                         LIBS="$cf_save_LIBS"
2630
2631                         if test "x$cf_test_ncuconfig" != xyes; then
2632                                 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^     ]]*//g'`
2633                                 cf_pkg_cflags="$cf_temp"
2634                                 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^       ]]*//g'`
2635                                 cf_pkg_libs="$cf_temp"
2636                         fi
2637                         ;;
2638                 esac
2639
2640                 CF_ADD_CFLAGS($cf_pkg_cflags)
2641                 CF_ADD_LIBS($cf_pkg_libs)
2642
2643                 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2644                         [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2645                         [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2646                                 int main(void)
2647                                 { char *xx = curses_version(); return (xx == 0); }],
2648                                 [cf_have_ncuconfig=yes],
2649                                 [cf_have_ncuconfig=no],
2650                                 [cf_have_ncuconfig=maybe])],
2651                         [cf_have_ncuconfig=no])
2652                 AC_MSG_RESULT($cf_have_ncuconfig)
2653                 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2654                 if test "$cf_have_ncuconfig" != "yes"
2655                 then
2656                         CPPFLAGS="$cf_save_CPPFLAGS"
2657                         LIBS="$cf_save_LIBS"
2658                         NCURSES_CONFIG_PKG=none
2659                 else
2660                         AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2661                         NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2662                         CF_TERM_HEADER
2663                 fi
2664
2665         else
2666                 AC_MSG_RESULT(no)
2667                 NCURSES_CONFIG_PKG=none
2668         fi
2669 else
2670         NCURSES_CONFIG_PKG=none
2671 fi
2672
2673 if test "x$cf_have_ncuconfig" = "xno"; then
2674         cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2675
2676         CF_ACVERSION_CHECK(2.52,
2677                 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2678                 [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2679
2680         if test "$NCURSES_CONFIG" != none ; then
2681
2682                 CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
2683                 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2684
2685                 # even with config script, some packages use no-override for curses.h
2686                 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2687
2688                 dnl like CF_NCURSES_CPPFLAGS
2689                 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2690
2691                 dnl like CF_NCURSES_LIBS
2692                 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2693                 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2694
2695                 dnl like CF_NCURSES_VERSION
2696                 cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
2697
2698         else
2699
2700                 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2701                 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2702
2703         fi
2704 else
2705         NCURSES_CONFIG=none
2706 fi
2707 ])dnl
2708 dnl ---------------------------------------------------------------------------
2709 dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
2710 dnl -------------------
2711 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2712 dnl the CPPFLAGS variable so we can include its header.
2713 dnl
2714 dnl The header files may be installed as either curses.h, or ncurses.h (would
2715 dnl be obsolete, except that some packagers prefer this name to distinguish it
2716 dnl from a "native" curses implementation).  If not installed for overwrite,
2717 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2718 dnl /usr/include/ncurses), but someone may have installed overwriting the
2719 dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
2720 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2721 dnl the header.
2722 dnl
2723 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2724 dnl is already in the include-path, don't even bother with this, since we cannot
2725 dnl easily determine which file it is.  In this case, it has to be <curses.h>.
2726 dnl
2727 dnl The optional parameter gives the root name of the library, in case it is
2728 dnl not installed as the default curses library.  That is how the
2729 dnl wide-character version of ncurses is installed.
2730 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2731 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2732
2733 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2734 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2735
2736 test -n "$cf_cv_curses_dir" && \
2737 test "$cf_cv_curses_dir" != "no" && { \
2738   CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2739 }
2740
2741 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2742         cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2743         ( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
2744         for cf_header in $cf_header_list
2745         do
2746                 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2747                 test "$cf_cv_ncurses_h" != no && break
2748         done
2749 ])
2750
2751 CF_NCURSES_HEADER
2752 CF_TERM_HEADER
2753
2754 # some applications need this, but should check for NCURSES_VERSION
2755 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2756
2757 CF_NCURSES_VERSION
2758 ])dnl
2759 dnl ---------------------------------------------------------------------------
2760 dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
2761 dnl -----------------
2762 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2763 dnl variations of ncurses' installs.
2764 dnl
2765 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2766 AC_DEFUN([CF_NCURSES_HEADER],[
2767
2768 if test "$cf_cv_ncurses_h" != no ; then
2769         cf_cv_ncurses_header=$cf_cv_ncurses_h
2770 else
2771
2772 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2773         test -n "$verbose" && echo
2774         CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2775         test -n "$verbose" && echo search path $cf_search
2776         cf_save2_CPPFLAGS="$CPPFLAGS"
2777         for cf_incdir in $cf_search
2778         do
2779                 CF_ADD_INCDIR($cf_incdir)
2780                 for cf_header in \
2781                         ncurses.h \
2782                         curses.h
2783                 do
2784                         CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2785                         if test "$cf_cv_ncurses_h2" != no ; then
2786                                 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2787                                 test -n "$verbose" && echo $ac_n "      ... found $ac_c" 1>&AC_FD_MSG
2788                                 break
2789                         fi
2790                         test -n "$verbose" && echo "    ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2791                 done
2792                 CPPFLAGS="$cf_save2_CPPFLAGS"
2793                 test "$cf_cv_ncurses_h2" != no && break
2794         done
2795         test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2796         ])
2797
2798         CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2799         cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
2800         if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
2801                 cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
2802         fi
2803         CF_ADD_INCDIR($cf_1st_incdir)
2804
2805 fi
2806
2807 # Set definitions to allow ifdef'ing for ncurses.h
2808
2809 case $cf_cv_ncurses_header in
2810 (*ncurses.h)
2811         AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2812         ;;
2813 esac
2814
2815 case $cf_cv_ncurses_header in
2816 (ncurses/curses.h|ncurses/ncurses.h)
2817         AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2818         ;;
2819 (ncursesw/curses.h|ncursesw/ncurses.h)
2820         AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2821         ;;
2822 esac
2823
2824 ])dnl
2825 dnl ---------------------------------------------------------------------------
2826 dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
2827 dnl ---------------
2828 dnl Look for the ncurses library.  This is a little complicated on Linux,
2829 dnl because it may be linked with the gpm (general purpose mouse) library.
2830 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2831 dnl unusable with ncurses.  However, we don't want to link with gpm unless
2832 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2833 dnl and the linker will record a dependency.
2834 dnl
2835 dnl The optional parameter gives the root name of the library, in case it is
2836 dnl not installed as the default curses library.  That is how the
2837 dnl wide-character version of ncurses is installed.
2838 AC_DEFUN([CF_NCURSES_LIBS],
2839 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2840
2841 cf_nculib_root=ifelse($1,,ncurses,$1)
2842         # This works, except for the special case where we find gpm, but
2843         # ncurses is in a nonstandard location via $LIBS, and we really want
2844         # to link gpm.
2845 cf_ncurses_LIBS=""
2846 cf_ncurses_SAVE="$LIBS"
2847 AC_CHECK_LIB(gpm,Gpm_Open,
2848         [AC_CHECK_LIB(gpm,initscr,
2849                 [LIBS="$cf_ncurses_SAVE"],
2850                 [cf_ncurses_LIBS="-lgpm"])])
2851
2852 case $host_os in
2853 (freebsd*)
2854         # This is only necessary if you are linking against an obsolete
2855         # version of ncurses (but it should do no harm, since it's static).
2856         if test "$cf_nculib_root" = ncurses ; then
2857                 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2858         fi
2859         ;;
2860 esac
2861
2862 CF_ADD_LIBS($cf_ncurses_LIBS)
2863
2864 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
2865 then
2866         CF_ADD_LIBS(-l$cf_nculib_root)
2867 else
2868         CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2869                 [#include <${cf_cv_ncurses_header:-curses.h}>],
2870                 [initscr()],
2871                 initscr)
2872 fi
2873
2874 if test -n "$cf_ncurses_LIBS" ; then
2875         AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2876         cf_ncurses_SAVE="$LIBS"
2877         for p in $cf_ncurses_LIBS ; do
2878                 q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
2879                 if test "$q" != "$LIBS" ; then
2880                         LIBS="$q"
2881                 fi
2882         done
2883         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2884                 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2885                 [AC_MSG_RESULT(yes)],
2886                 [AC_MSG_RESULT(no)
2887                  LIBS="$cf_ncurses_SAVE"])
2888 fi
2889
2890 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2891 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2892 ])dnl
2893 dnl ---------------------------------------------------------------------------
2894 dnl CF_NCURSES_VERSION version: 15 updated: 2017/05/09 19:26:10
2895 dnl ------------------
2896 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2897 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
2898 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2899 AC_DEFUN([CF_NCURSES_VERSION],
2900 [
2901 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2902 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2903         cf_cv_ncurses_version=no
2904         cf_tempfile=out$$
2905         rm -f $cf_tempfile
2906         AC_TRY_RUN([
2907 #include <${cf_cv_ncurses_header:-curses.h}>
2908 #include <stdio.h>
2909 int main(void)
2910 {
2911         FILE *fp = fopen("$cf_tempfile", "w");
2912 #ifdef NCURSES_VERSION
2913 # ifdef NCURSES_VERSION_PATCH
2914         fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2915 # else
2916         fprintf(fp, "%s\n", NCURSES_VERSION);
2917 # endif
2918 #else
2919 # ifdef __NCURSES_H
2920         fprintf(fp, "old\n");
2921 # else
2922         make an error
2923 # endif
2924 #endif
2925         ${cf_cv_main_return:-return}(0);
2926 }],[
2927         cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2928
2929         # This will not work if the preprocessor splits the line after the
2930         # Autoconf token.  The 'unproto' program does that.
2931         cat > conftest.$ac_ext <<EOF
2932 #include <${cf_cv_ncurses_header:-curses.h}>
2933 #undef Autoconf
2934 #ifdef NCURSES_VERSION
2935 Autoconf NCURSES_VERSION
2936 #else
2937 #ifdef __NCURSES_H
2938 Autoconf "old"
2939 #endif
2940 ;
2941 #endif
2942 EOF
2943         cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2944         AC_TRY_EVAL(cf_try)
2945         if test -f conftest.out ; then
2946                 cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
2947                 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2948                 rm -f conftest.out
2949         fi
2950 ])
2951         rm -f $cf_tempfile
2952 ])
2953 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2954 ])dnl
2955 dnl ---------------------------------------------------------------------------
2956 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
2957 dnl -------------
2958 dnl Compute the object-directory name from the given model name
2959 AC_DEFUN([CF_OBJ_SUBDIR],
2960 [
2961         case $1 in
2962         (libtool) $2='obj_lo'  ;;
2963         (normal)  $2='objects' ;;
2964         (debug)   $2='obj_g' ;;
2965         (profile) $2='obj_p' ;;
2966         (shared)
2967                 case $cf_cv_system_name in
2968                 (cygwin|msys)
2969                         $2='objects' ;;
2970                 (*)
2971                         $2='obj_s' ;;
2972                 esac
2973         esac
2974 ])dnl
2975 dnl ---------------------------------------------------------------------------
2976 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
2977 dnl ----------
2978 dnl Provide a value for the $PATH and similar separator (or amend the value
2979 dnl as provided in autoconf 2.5x).
2980 AC_DEFUN([CF_PATHSEP],
2981 [
2982         AC_MSG_CHECKING(for PATH separator)
2983         case $cf_cv_system_name in
2984         (os2*)  PATH_SEPARATOR=';'  ;;
2985         (*)     ${PATH_SEPARATOR:=':'}  ;;
2986         esac
2987 ifelse([$1],,,[$1=$PATH_SEPARATOR])
2988         AC_SUBST(PATH_SEPARATOR)
2989         AC_MSG_RESULT($PATH_SEPARATOR)
2990 ])dnl
2991 dnl ---------------------------------------------------------------------------
2992 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
2993 dnl --------------
2994 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
2995 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2996 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
2997 dnl delayed evaluation of those symbols.
2998 AC_DEFUN([CF_PATH_SYNTAX],[
2999 if test "x$prefix" != xNONE; then
3000         cf_path_syntax="$prefix"
3001 else
3002         cf_path_syntax="$ac_default_prefix"
3003 fi
3004
3005 case ".[$]$1" in
3006 (.\[$]\(*\)*|.\'*\'*)
3007         ;;
3008 (..|./*|.\\*)
3009         ;;
3010 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3011         ;;
3012 (.\[$]{*prefix}*|.\[$]{*dir}*)
3013         eval $1="[$]$1"
3014         case ".[$]$1" in
3015         (.NONE/*)
3016                 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
3017                 ;;
3018         esac
3019         ;;
3020 (.no|.NONE/*)
3021         $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
3022         ;;
3023 (*)
3024         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3025         ;;
3026 esac
3027 ])dnl
3028 dnl ---------------------------------------------------------------------------
3029 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
3030 dnl -------------
3031 dnl Check for the package-config program, unless disabled by command-line.
3032 AC_DEFUN([CF_PKG_CONFIG],
3033 [
3034 AC_MSG_CHECKING(if you want to use pkg-config)
3035 AC_ARG_WITH(pkg-config,
3036         [  --with-pkg-config{=path} enable/disable use of pkg-config],
3037         [cf_pkg_config=$withval],
3038         [cf_pkg_config=yes])
3039 AC_MSG_RESULT($cf_pkg_config)
3040
3041 case $cf_pkg_config in
3042 (no)
3043         PKG_CONFIG=none
3044         ;;
3045 (yes)
3046         CF_ACVERSION_CHECK(2.52,
3047                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3048                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3049         ;;
3050 (*)
3051         PKG_CONFIG=$withval
3052         ;;
3053 esac
3054
3055 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3056 if test "$PKG_CONFIG" != none ; then
3057         CF_PATH_SYNTAX(PKG_CONFIG)
3058 elif test "x$cf_pkg_config" != xno ; then
3059         AC_MSG_WARN(pkg-config is not installed)
3060 fi
3061
3062 AC_SUBST(PKG_CONFIG)
3063 ])dnl
3064 dnl ---------------------------------------------------------------------------
3065 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3066 dnl -----------------
3067 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3068 dnl
3069 dnl     POSIX.1-1990                            _POSIX_SOURCE
3070 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
3071 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
3072 dnl             Bindings Option
3073 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
3074 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
3075 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
3076 dnl
3077 dnl Parameters:
3078 dnl     $1 is the nominal value for _POSIX_C_SOURCE
3079 AC_DEFUN([CF_POSIX_C_SOURCE],
3080 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3081
3082 if test "$cf_cv_posix_visible" = no; then
3083
3084 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3085
3086 cf_save_CFLAGS="$CFLAGS"
3087 cf_save_CPPFLAGS="$CPPFLAGS"
3088
3089 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3090 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3091
3092 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3093         CF_MSG_LOG(if the symbol is already defined go no further)
3094         AC_TRY_COMPILE([#include <sys/types.h>],[
3095 #ifndef _POSIX_C_SOURCE
3096 make an error
3097 #endif],
3098         [cf_cv_posix_c_source=no],
3099         [cf_want_posix_source=no
3100          case .$cf_POSIX_C_SOURCE in
3101          (.[[12]]??*)
3102                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3103                 ;;
3104          (.2)
3105                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3106                 cf_want_posix_source=yes
3107                 ;;
3108          (.*)
3109                 cf_want_posix_source=yes
3110                 ;;
3111          esac
3112          if test "$cf_want_posix_source" = yes ; then
3113                 AC_TRY_COMPILE([#include <sys/types.h>],[
3114 #ifdef _POSIX_SOURCE
3115 make an error
3116 #endif],[],
3117                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3118          fi
3119          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3120          CFLAGS="$cf_trim_CFLAGS"
3121          CPPFLAGS="$cf_trim_CPPFLAGS"
3122          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3123          CF_MSG_LOG(if the second compile does not leave our definition intact error)
3124          AC_TRY_COMPILE([#include <sys/types.h>],[
3125 #ifndef _POSIX_C_SOURCE
3126 make an error
3127 #endif],,
3128          [cf_cv_posix_c_source=no])
3129          CFLAGS="$cf_save_CFLAGS"
3130          CPPFLAGS="$cf_save_CPPFLAGS"
3131         ])
3132 ])
3133
3134 if test "$cf_cv_posix_c_source" != no ; then
3135         CFLAGS="$cf_trim_CFLAGS"
3136         CPPFLAGS="$cf_trim_CPPFLAGS"
3137         CF_ADD_CFLAGS($cf_cv_posix_c_source)
3138 fi
3139
3140 fi # cf_cv_posix_visible
3141
3142 ])dnl
3143 dnl ---------------------------------------------------------------------------
3144 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3145 dnl ----------------
3146 dnl POSIX documents test-macros which an application may set before any system
3147 dnl headers are included to make features available.
3148 dnl
3149 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3150 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3151 dnl recent features visible in the system header files unless the application
3152 dnl overrides the corresponding test-macros.  Doing that introduces portability
3153 dnl problems.
3154 dnl
3155 dnl This macro makes a special check for the symbols used for this, to avoid a
3156 dnl conflicting definition.
3157 AC_DEFUN([CF_POSIX_VISIBLE],
3158 [
3159 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3160 AC_TRY_COMPILE([#include <stdio.h>],[
3161 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3162         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3163         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3164         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3165 #error conflicting symbols found
3166 #endif
3167 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3168 ])
3169 ])dnl
3170 dnl ---------------------------------------------------------------------------
3171 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3172 dnl ----------
3173 dnl Check for archiver "ar".
3174 AC_DEFUN([CF_PROG_AR],[
3175 AC_CHECK_TOOL(AR, ar, ar)
3176 ])
3177 dnl ---------------------------------------------------------------------------
3178 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3179 dnl -----------
3180 dnl Check for awk, ensure that the check found something.
3181 AC_DEFUN([CF_PROG_AWK],
3182 [
3183 AC_PROG_AWK
3184 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3185 ])dnl
3186 dnl ---------------------------------------------------------------------------
3187 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3188 dnl ----------
3189 dnl standard check for CC, plus followup sanity checks
3190 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3191 AC_DEFUN([CF_PROG_CC],[
3192 CF_ACVERSION_CHECK(2.53,
3193         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3194          AC_REQUIRE([AC_PROG_CC])],
3195         [])
3196 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3197 CF_GCC_VERSION
3198 CF_ACVERSION_CHECK(2.52,
3199         [AC_PROG_CC_STDC],
3200         [CF_ANSI_CC_REQD])
3201 CF_CC_ENV_FLAGS
3202 ])dnl
3203 dnl ---------------------------------------------------------------------------
3204 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
3205 dnl --------------
3206 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3207 dnl the output file can be renamed, and allows for a shell variable that can
3208 dnl be used later.  The parameter is either CC or CXX.  The result is the
3209 dnl cache variable:
3210 dnl     $cf_cv_prog_CC_c_o
3211 dnl     $cf_cv_prog_CXX_c_o
3212 dnl
3213 dnl $1 = compiler
3214 dnl $2 = compiler options, if any
3215 AC_DEFUN([CF_PROG_CC_C_O],
3216 [AC_REQUIRE([AC_PROG_CC])dnl
3217 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3218 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3219 [
3220 cat > conftest.$ac_ext <<CF_EOF
3221 int main(void)
3222 {
3223         ${cf_cv_main_return:-return}(0);
3224 }
3225 CF_EOF
3226 # We do the test twice because some compilers refuse to overwrite an
3227 # existing .o file with -o, though they will create one.
3228 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3229 if AC_TRY_EVAL(ac_try) &&
3230   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3231 then
3232   eval cf_cv_prog_$1_c_o=yes
3233 else
3234   eval cf_cv_prog_$1_c_o=no
3235 fi
3236 rm -rf conftest*
3237 ])dnl
3238 if test $cf_cv_prog_$1_c_o = yes; then
3239   AC_MSG_RESULT([yes])
3240 else
3241   AC_MSG_RESULT([no])
3242 fi
3243 ])dnl
3244 dnl ---------------------------------------------------------------------------
3245 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3246 dnl -------------
3247 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3248 dnl This macro adds a check to ensure the script found something.
3249 AC_DEFUN([CF_PROG_EGREP],
3250 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3251         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3252                 then ac_cv_prog_egrep='grep -E'
3253                 else ac_cv_prog_egrep='egrep'
3254         fi])
3255         EGREP=$ac_cv_prog_egrep
3256         AC_SUBST([EGREP])
3257         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3258 ])dnl
3259 dnl ---------------------------------------------------------------------------
3260 dnl CF_PROG_EXT version: 14 updated: 2018/06/20 20:23:13
3261 dnl -----------
3262 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3263 AC_DEFUN([CF_PROG_EXT],
3264 [
3265 AC_REQUIRE([CF_CHECK_CACHE])
3266 case $cf_cv_system_name in
3267 (os2*)
3268         CFLAGS="$CFLAGS -Zmt"
3269         CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3270         CXXFLAGS="$CXXFLAGS -Zmt"
3271         # autoconf's macro sets -Zexe and suffix both, which conflict:w
3272         LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3273         ac_cv_exeext=.exe
3274         ;;
3275 esac
3276
3277 AC_EXEEXT
3278 AC_OBJEXT
3279
3280 PROG_EXT="$EXEEXT"
3281 AC_SUBST(PROG_EXT)
3282 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3283 ])dnl
3284 dnl ---------------------------------------------------------------------------
3285 dnl CF_PROG_GNAT version: 10 updated: 2019/12/31 08:53:54
3286 dnl ------------
3287 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3288 AC_DEFUN([CF_PROG_GNAT],[
3289 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3290 do
3291         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3292
3293         unset ac_cv_path_cf_TEMP_gnat
3294         unset cf_TEMP_gnat
3295         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3296         eval cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat
3297
3298         if test "x$cf_TEMP_gnat" != xno; then
3299                 unset cf_cv_gnat_version
3300                 unset cf_TEMP_gnat
3301                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3302         fi
3303         eval cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat
3304
3305         unset cf_TEMP_gnat
3306         unset cf_cv_gnat_version
3307         unset ac_cv_path_cf_TEMP_gnat
3308 done
3309
3310 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3311         cf_ada_make=
3312         cf_cv_prog_gnat_correct=no
3313 else
3314         cf_ada_make=gnatmake
3315         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3316                 # gprconfig is newer than gnatmake; we can continue...
3317                 cf_ada_config="##"
3318         else
3319                 rm -rf conftest* *~conftest*
3320                 if mkdir conftest.src
3321                 then
3322                         cf_ada_config=""
3323                         cd conftest.src
3324                         for cf_gprconfig in Ada C
3325                         do
3326                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3327                                 if test $cf_gprconfig = C
3328                                 then
3329                                         for cf_gprconfig_param in \
3330                                                 $cf_gprconfig,,,,GNATGCC \
3331                                                 $cf_gprconfig,,,,GCC \
3332                                                 $cf_gprconfig
3333                                         do
3334                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3335                                                 test -n "$cf_gprconfig_value" && break
3336                                         done
3337                                 else
3338                                         cf_gprconfig_param=$cf_gprconfig
3339                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3340                                 fi
3341                                 if test -n "$cf_gprconfig_value"
3342                                 then
3343                                         eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
3344                                         AC_MSG_RESULT($cf_gprconfig_value)
3345                                 else
3346                                         AC_MSG_RESULT(missing)
3347                                         cf_ada_config="#"
3348                                         break
3349                                 fi
3350                         done
3351                         cd ..
3352                         rm -rf conftest* *~conftest*
3353                 fi
3354         fi
3355         if test "x$cf_ada_config" != "x#"
3356         then
3357                 CF_GNAT_VERSION
3358                 CF_CHECK_GNAT_VERSION
3359                 AC_CHECK_PROG(M4_exists, m4, yes, no)
3360                 if test "$ac_cv_prog_M4_exists" = no; then
3361                         cf_cv_prog_gnat_correct=no
3362                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3363                 fi
3364                 if test "$cf_cv_prog_gnat_correct" = yes; then
3365                         AC_MSG_CHECKING(if GNAT works)
3366                         CF_GNAT_TRY_RUN([procedure conftest;],
3367 [with Text_IO;
3368 with GNAT.OS_Lib;
3369 procedure conftest is
3370 begin
3371    Text_IO.Put ("Hello World");
3372    Text_IO.New_Line;
3373    GNAT.OS_Lib.OS_Exit (0);
3374 end conftest;],
3375 [cf_cv_prog_gnat_correct=yes],
3376 [cf_cv_prog_gnat_correct=no])
3377                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3378                 fi
3379         else
3380                 cf_cv_prog_gnat_correct=no
3381         fi
3382 fi
3383
3384 AC_SUBST(cf_ada_make)
3385 AC_SUBST(cf_ada_config)
3386 AC_SUBST(cf_ada_config_Ada)
3387 AC_SUBST(cf_ada_config_C)
3388 ])dnl
3389 dnl ---------------------------------------------------------------------------
3390 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
3391 dnl ---------------
3392 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
3393 dnl misc/tabset install won't work properly.  Usually this happens only when
3394 dnl using the fallback mkinstalldirs script
3395 AC_DEFUN([CF_PROG_INSTALL],
3396 [AC_PROG_INSTALL
3397 case $INSTALL in
3398 (/*)
3399         ;;
3400 (*)
3401         CF_DIRNAME(cf_dir,$INSTALL)
3402         test -z "$cf_dir" && cf_dir=.
3403         INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
3404         ;;
3405 esac
3406 ])dnl
3407 dnl ---------------------------------------------------------------------------
3408 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3409 dnl ------------
3410 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3411 dnl option if it is supported.
3412 AC_DEFUN([CF_PROG_LN_S],[
3413 AC_PROG_LN_S
3414 AC_MSG_CHECKING(if $LN_S -f options work)
3415
3416 rm -f conf$$.src conf$$dst
3417 echo >conf$$.dst
3418 echo first >conf$$.src
3419 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3420         cf_prog_ln_sf=yes
3421 else
3422         cf_prog_ln_sf=no
3423 fi
3424 rm -f conf$$.dst conf$$src
3425 AC_MSG_RESULT($cf_prog_ln_sf)
3426
3427 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3428 ])dnl
3429 dnl ---------------------------------------------------------------------------
3430 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3431 dnl ----------------
3432 dnl Remove all -U and -D options that refer to the given symbol from a list
3433 dnl of C compiler options.  This works around the problem that not all
3434 dnl compilers process -U and -D options from left-to-right, so a -U option
3435 dnl cannot be used to cancel the effect of a preceding -D option.
3436 dnl
3437 dnl $1 = target (which could be the same as the source variable)
3438 dnl $2 = source (including '$')
3439 dnl $3 = symbol to remove
3440 define([CF_REMOVE_DEFINE],
3441 [
3442 $1=`echo "$2" | \
3443         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
3444                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
3445 ])dnl
3446 dnl ---------------------------------------------------------------------------
3447 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3448 dnl -------------
3449 dnl Remove the given library from the symbol
3450 dnl
3451 dnl $1 = target (which could be the same as the source variable)
3452 dnl $2 = source (including '$')
3453 dnl $3 = library to remove
3454 define([CF_REMOVE_LIB],
3455 [
3456 # remove $3 library from $2
3457 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
3458 ])dnl
3459 dnl ---------------------------------------------------------------------------
3460 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3461 dnl ---------------------
3462 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3463 dnl $1 = name of current macro
3464 define([CF_RESTORE_XTRA_FLAGS],
3465 [
3466 LIBS="$cf_save_LIBS_$1"
3467 CFLAGS="$cf_save_CFLAGS_$1"
3468 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3469 ])dnl
3470 dnl ---------------------------------------------------------------------------
3471 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3472 dnl ------------------
3473 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3474 dnl and libraries which do not update those variables.
3475 dnl
3476 dnl $1 = name of current macro
3477 define([CF_SAVE_XTRA_FLAGS],
3478 [
3479 cf_save_LIBS_$1="$LIBS"
3480 cf_save_CFLAGS_$1="$CFLAGS"
3481 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3482 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3483 for cf_X_CFLAGS in $X_CFLAGS
3484 do
3485         case "x$cf_X_CFLAGS" in
3486         x-[[IUD]]*)
3487                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3488                 ;;
3489         *)
3490                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3491                 ;;
3492         esac
3493 done
3494 ])dnl
3495 dnl ---------------------------------------------------------------------------
3496 dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
3497 dnl --------------
3498 dnl --------------
3499 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3500 dnl library.
3501 dnl
3502 dnl Notes:
3503 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3504 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3505 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3506 dnl shared library since that can lead to unexpected results at runtime.
3507 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3508 dnl libraries are compiled in ../../lib
3509 dnl
3510 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3511 dnl to install symbolic links to the rel/abi versions of shared libraries.
3512 dnl
3513 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3514 dnl version when making symbolic links.
3515 dnl
3516 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3517 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3518 dnl (ex: libncurses.so.<ver>).
3519 dnl
3520 dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
3521 AC_DEFUN([CF_SHARED_OPTS],
3522 [
3523         AC_REQUIRE([CF_LD_RPATH_OPT])
3524
3525         RM_SHARED_OPTS=
3526         LOCAL_LDFLAGS=
3527         LOCAL_LDFLAGS2=
3528         LD_SHARED_OPTS=
3529         INSTALL_LIB="-m 644"
3530         : ${rel_builddir:=.}
3531
3532         shlibdir=$libdir
3533         AC_SUBST(shlibdir)
3534
3535         MAKE_DLLS="#"
3536         AC_SUBST(MAKE_DLLS)
3537
3538         cf_cv_do_symlinks=no
3539         cf_ld_rpath_opt=
3540         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3541
3542         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3543         AC_ARG_WITH(shlib-version,
3544         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
3545         [test -z "$withval" && withval=auto
3546         case $withval in
3547         (yes)
3548                 cf_cv_shlib_version=auto
3549                 ;;
3550         (rel|abi|auto)
3551                 cf_cv_shlib_version=$withval
3552                 ;;
3553         (*)
3554                 AC_MSG_RESULT($withval)
3555                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3556                 ;;
3557         esac
3558         ],[cf_cv_shlib_version=auto])
3559         AC_MSG_RESULT($cf_cv_shlib_version)
3560
3561         cf_cv_rm_so_locs=no
3562         cf_try_cflags=
3563
3564         # Some less-capable ports of gcc support only -fpic
3565         CC_SHARED_OPTS=
3566
3567         cf_try_fPIC=no
3568         if test "$GCC" = yes
3569         then
3570                 cf_try_fPIC=yes
3571         else
3572                 case $cf_cv_system_name in
3573                 (*linux*)       # e.g., PGI compiler
3574                         cf_try_fPIC=yes
3575                         ;;
3576                 esac
3577         fi
3578
3579         if test "$cf_try_fPIC" = yes
3580         then
3581                 AC_MSG_CHECKING(which $CC option to use)
3582                 cf_save_CFLAGS="$CFLAGS"
3583                 for CC_SHARED_OPTS in -fPIC -fpic ''
3584                 do
3585                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3586                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
3587                 done
3588                 AC_MSG_RESULT($CC_SHARED_OPTS)
3589                 CFLAGS="$cf_save_CFLAGS"
3590         fi
3591
3592         cf_cv_shlib_version_infix=no
3593
3594         case $cf_cv_system_name in
3595         (aix4.[3-9]*|aix[[5-7]]*)
3596                 if test "$GCC" = yes; then
3597                         CC_SHARED_OPTS='-Wl,-brtl'
3598                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3599                 else
3600                         CC_SHARED_OPTS='-brtl'
3601                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
3602                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3603                 fi
3604                 ;;
3605         (beos*)
3606                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
3607                 ;;
3608         (cygwin*)
3609                 CC_SHARED_OPTS=
3610                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3611                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3612                 cf_cv_shlib_version=cygdll
3613                 cf_cv_shlib_version_infix=cygdll
3614                 shlibdir=$bindir
3615                 MAKE_DLLS=
3616                 cat >mk_shared_lib.sh <<-CF_EOF
3617                 #!$SHELL
3618                 SHARED_LIB=\[$]1
3619                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3620                 shift
3621                 cat <<-EOF
3622                 Linking shared library
3623                 ** SHARED_LIB \[$]SHARED_LIB
3624                 ** IMPORT_LIB \[$]IMPORT_LIB
3625 EOF
3626                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3627 CF_EOF
3628                 chmod +x mk_shared_lib.sh
3629                 ;;
3630         (msys*)
3631                 CC_SHARED_OPTS=
3632                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3633                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3634                 cf_cv_shlib_version=msysdll
3635                 cf_cv_shlib_version_infix=msysdll
3636                 shlibdir=$bindir
3637                 MAKE_DLLS=
3638                 cat >mk_shared_lib.sh <<-CF_EOF
3639                 #!$SHELL
3640                 SHARED_LIB=\[$]1
3641                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3642                 shift
3643                 cat <<-EOF
3644                 Linking shared library
3645                 ** SHARED_LIB \[$]SHARED_LIB
3646                 ** IMPORT_LIB \[$]IMPORT_LIB
3647 EOF
3648                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3649 CF_EOF
3650                 chmod +x mk_shared_lib.sh
3651                 ;;
3652         (darwin*)
3653                 cf_try_cflags="no-cpp-precomp"
3654                 CC_SHARED_OPTS="-dynamic"
3655                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
3656                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
3657                 cf_cv_shlib_version_infix=yes
3658                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
3659                         cf_save_LDFLAGS=$LDFLAGS
3660                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3661                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
3662                                 LDFLAGS=$cf_save_LDFLAGS])
3663                 if test $cf_cv_ldflags_search_paths_first = yes; then
3664                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3665                 fi
3666                 ;;
3667         (hpux[[7-8]]*)
3668                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
3669                 if test "$GCC" != yes; then
3670                         CC_SHARED_OPTS='+Z'
3671                 fi
3672                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
3673                 INSTALL_LIB="-m 555"
3674                 ;;
3675         (hpux*)
3676                 # (tested with gcc 2.7.2 -- I don't have c89)
3677                 if test "$GCC" = yes; then
3678                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
3679                 else
3680                         CC_SHARED_OPTS='+Z'
3681                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
3682                 fi
3683                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
3684                 # HP-UX shared libraries must be executable, and should be
3685                 # readonly to exploit a quirk in the memory manager.
3686                 INSTALL_LIB="-m 555"
3687                 ;;
3688         (interix*)
3689                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3690                 if test "$cf_cv_shlib_version" = rel; then
3691                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3692                 else
3693                         cf_shared_soname='`basename $[@]`'
3694                 fi
3695                 CC_SHARED_OPTS=
3696                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
3697                 ;;
3698         (irix*)
3699                 if test "$cf_cv_enable_rpath" = yes ; then
3700                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3701                 fi
3702                 # tested with IRIX 5.2 and 'cc'.
3703                 if test "$GCC" != yes; then
3704                         CC_SHARED_OPTS='-KPIC'
3705                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
3706                 else
3707                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
3708                 fi
3709                 cf_cv_rm_so_locs=yes
3710                 ;;
3711         (linux*|gnu*|k*bsd*-gnu)
3712                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3713                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3714                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3715                 fi
3716                 if test "$cf_cv_enable_rpath" = yes ; then
3717                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3718                 fi
3719                 CF_SHARED_SONAME
3720                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3721                 ;;
3722         (mingw*)
3723                 cf_cv_shlib_version=mingw
3724                 cf_cv_shlib_version_infix=mingw
3725                 shlibdir=$bindir
3726                 MAKE_DLLS=
3727                 if test "$DFT_LWR_MODEL" = "shared" ; then
3728                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
3729                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3730                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
3731                 fi
3732                 CC_SHARED_OPTS=
3733                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3734                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3735                 cat >mk_shared_lib.sh <<-CF_EOF
3736                 #!$SHELL
3737                 SHARED_LIB=\[$]1
3738                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3739                 shift
3740                 cat <<-EOF
3741                 Linking shared library
3742                 ** SHARED_LIB \[$]SHARED_LIB
3743                 ** IMPORT_LIB \[$]IMPORT_LIB
3744 EOF
3745                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3746 CF_EOF
3747                 chmod +x mk_shared_lib.sh
3748                 ;;
3749         (openbsd[[2-9]].*|mirbsd*)
3750                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3751                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3752                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3753                 fi
3754                 if test "$cf_cv_enable_rpath" = yes ; then
3755                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3756                 fi
3757                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3758                 CF_SHARED_SONAME
3759                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3760                 ;;
3761         (nto-qnx*|openbsd*|freebsd[[12]].*)
3762                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3763                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
3764                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3765                 ;;
3766         (dragonfly*|freebsd*)
3767                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3768                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3769                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3770                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
3771                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3772                 fi
3773                 CF_SHARED_SONAME
3774                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3775                 ;;
3776         (netbsd*)
3777                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3778                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3779                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3780                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3781                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3782                         if test "$cf_cv_shlib_version" = auto; then
3783                         if test -f /usr/libexec/ld.elf_so; then
3784                                 cf_cv_shlib_version=abi
3785                         else
3786                                 cf_cv_shlib_version=rel
3787                         fi
3788                         fi
3789                         CF_SHARED_SONAME
3790                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
3791                 else
3792                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
3793                 fi
3794                 ;;
3795         (osf*|mls+*)
3796                 # tested with OSF/1 V3.2 and 'cc'
3797                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
3798                 # link with shared libs).
3799                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
3800                 case $host_os in
3801                 (osf4*)
3802                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
3803                         ;;
3804                 esac
3805                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
3806                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3807                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3808                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3809                 fi
3810                 cf_cv_rm_so_locs=yes
3811                 ;;
3812         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
3813                 # tested with osr5.0.5
3814                 if test "$GCC" != yes; then
3815                         CC_SHARED_OPTS='-belf -KPIC'
3816                 fi
3817                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
3818                 if test "$cf_cv_enable_rpath" = yes ; then
3819                         # only way is to set LD_RUN_PATH but no switch for it
3820                         RUN_PATH=$libdir
3821                 fi
3822                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3823                 LINK_PROGS='LD_RUN_PATH=${libdir}'
3824                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
3825                 ;;
3826         (sunos4*)
3827                 # tested with SunOS 4.1.1 and gcc 2.7.0
3828                 if test "$GCC" != yes; then
3829                         CC_SHARED_OPTS='-KPIC'
3830                 fi
3831                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
3832                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3833                 ;;
3834         (solaris2*)
3835                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
3836                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
3837                 if test "$DFT_LWR_MODEL" = "shared" ; then
3838                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
3839                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3840                 fi
3841                 if test "$cf_cv_enable_rpath" = yes ; then
3842                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
3843                 fi
3844                 CF_SHARED_SONAME
3845                 if test "$GCC" != yes; then
3846                         cf_save_CFLAGS="$CFLAGS"
3847                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
3848                         do
3849                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
3850                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
3851                         done
3852                         CFLAGS="$cf_save_CFLAGS"
3853                         CC_SHARED_OPTS=$cf_shared_opts
3854                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3855                 else
3856                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3857                 fi
3858                 ;;
3859         (sysv5uw7*|unix_sv*)
3860                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
3861                 if test "$GCC" != yes; then
3862                         CC_SHARED_OPTS='-KPIC'
3863                 fi
3864                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
3865                 ;;
3866         (*)
3867                 CC_SHARED_OPTS='unknown'
3868                 MK_SHARED_LIB='echo unknown'
3869                 ;;
3870         esac
3871
3872         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
3873         case "$cf_cv_shlib_version" in
3874         (rel|abi)
3875                 case "$MK_SHARED_LIB" in
3876                 (*'-o $[@]')
3877                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
3878                         ;;
3879                 (*)
3880                         AC_MSG_WARN(ignored --with-shlib-version)
3881                         ;;
3882                 esac
3883                 ;;
3884         esac
3885
3886         if test -n "$cf_try_cflags"
3887         then
3888 cat > conftest.$ac_ext <<EOF
3889 #line __oline__ "${as_me:-configure}"
3890 #include <stdio.h>
3891 int main(int argc, char *argv[[]])
3892 {
3893         printf("hello\n");
3894         return (argv[[argc-1]] == 0) ;
3895 }
3896 EOF
3897                 cf_save_CFLAGS="$CFLAGS"
3898                 for cf_opt in $cf_try_cflags
3899                 do
3900                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
3901                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
3902                         if AC_TRY_EVAL(ac_compile); then
3903                                 AC_MSG_RESULT(yes)
3904                                 cf_save_CFLAGS="$CFLAGS"
3905                         else
3906                                 AC_MSG_RESULT(no)
3907                         fi
3908                 done
3909                 CFLAGS="$cf_save_CFLAGS"
3910         fi
3911
3912
3913         # RPATH_LIST is a colon-separated list of directories
3914         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
3915         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
3916
3917         test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
3918
3919         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
3920         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
3921
3922         AC_SUBST(CC_SHARED_OPTS)
3923         AC_SUBST(LD_RPATH_OPT)
3924         AC_SUBST(LD_SHARED_OPTS)
3925         AC_SUBST(MK_SHARED_LIB)
3926         AC_SUBST(RM_SHARED_OPTS)
3927
3928         AC_SUBST(LINK_PROGS)
3929         AC_SUBST(LINK_TESTS)
3930
3931         AC_SUBST(EXTRA_LDFLAGS)
3932         AC_SUBST(LOCAL_LDFLAGS)
3933         AC_SUBST(LOCAL_LDFLAGS2)
3934
3935         AC_SUBST(INSTALL_LIB)
3936         AC_SUBST(RPATH_LIST)
3937 ])dnl
3938 dnl ---------------------------------------------------------------------------
3939 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
3940 dnl ----------------
3941 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
3942 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
3943 dnl option.
3944 dnl
3945 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
3946 dnl If missing, use "rel".
3947 define([CF_SHARED_SONAME],
3948 [
3949         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
3950         if test "$cf_cv_shlib_version" = rel; then
3951                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3952         else
3953                 cf_cv_shared_soname='`basename $[@]`'
3954         fi
3955 ])
3956 dnl ---------------------------------------------------------------------------
3957 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
3958 dnl --------------
3959 dnl     Remove "-g" option from the compiler options
3960 AC_DEFUN([CF_STRIP_G_OPT],
3961 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
3962 dnl ---------------------------------------------------------------------------
3963 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3964 dnl --------------
3965 dnl Construct a search-list for a nonstandard header/lib-file
3966 dnl     $1 = the variable to return as result
3967 dnl     $2 = the package name
3968 dnl     $3 = the subdirectory, e.g., bin, include or lib
3969 AC_DEFUN([CF_SUBDIR_PATH],
3970 [
3971 $1=
3972
3973 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3974
3975 for cf_subdir_prefix in \
3976         /usr \
3977         /usr/local \
3978         /usr/pkg \
3979         /opt \
3980         /opt/local \
3981         [$]HOME
3982 do
3983         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3984 done
3985 ])dnl
3986 dnl ---------------------------------------------------------------------------
3987 dnl CF_TERM_HEADER version: 4 updated: 2015/04/15 19:08:48
3988 dnl --------------
3989 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
3990 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
3991 dnl but some packagers change this, breaking various applications.
3992 AC_DEFUN([CF_TERM_HEADER],[
3993 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3994 case ${cf_cv_ncurses_header} in
3995 (*/ncurses.h|*/ncursesw.h)
3996         cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3997         ;;
3998 (*)
3999         cf_term_header=term.h
4000         ;;
4001 esac
4002
4003 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
4004 do
4005 AC_TRY_COMPILE([#include <stdio.h>
4006 #include <${cf_cv_ncurses_header:-curses.h}>
4007 #include <$cf_test>
4008 ],[int x = auto_left_margin],[
4009         cf_cv_term_header="$cf_test"],[
4010         cf_cv_term_header=unknown
4011         ])
4012         test "$cf_cv_term_header" != unknown && break
4013 done
4014 ])
4015
4016 # Set definitions to allow ifdef'ing to accommodate subdirectories
4017
4018 case $cf_cv_term_header in
4019 (*term.h)
4020         AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
4021         ;;
4022 esac
4023
4024 case $cf_cv_term_header in
4025 (ncurses/term.h)
4026         AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
4027         ;;
4028 (ncursesw/term.h)
4029         AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
4030         ;;
4031 esac
4032 ])dnl
4033 dnl ---------------------------------------------------------------------------
4034 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
4035 dnl ---------------
4036 dnl Define a top_builddir symbol, for applications that need an absolute path.
4037 AC_DEFUN([CF_TOP_BUILDDIR],
4038 [
4039 top_builddir=ifelse($1,,`pwd`,$1)
4040 AC_SUBST(top_builddir)
4041 ])dnl
4042 dnl ---------------------------------------------------------------------------
4043 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
4044 dnl -------------------
4045 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4046 dnl can define it successfully.
4047 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4048 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4049         AC_TRY_COMPILE([
4050 #include <stdlib.h>
4051 #include <string.h>
4052 #include <sys/types.h>
4053 ],[
4054 #ifndef _XOPEN_SOURCE
4055 make an error
4056 #endif],
4057         [cf_cv_xopen_source=no],
4058         [cf_save="$CPPFLAGS"
4059          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4060          AC_TRY_COMPILE([
4061 #include <stdlib.h>
4062 #include <string.h>
4063 #include <sys/types.h>
4064 ],[
4065 #ifdef _XOPEN_SOURCE
4066 make an error
4067 #endif],
4068         [cf_cv_xopen_source=no],
4069         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4070         CPPFLAGS="$cf_save"
4071         ])
4072 ])
4073
4074 if test "$cf_cv_xopen_source" != no ; then
4075         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4076         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4077         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4078         CF_ADD_CFLAGS($cf_temp_xopen_source)
4079 fi
4080 ])
4081 dnl ---------------------------------------------------------------------------
4082 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4083 dnl --------
4084 dnl Make an uppercase version of a variable
4085 dnl $1=uppercase($2)
4086 AC_DEFUN([CF_UPPER],
4087 [
4088 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4089 ])dnl
4090 dnl ---------------------------------------------------------------------------
4091 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
4092 dnl -----------
4093 dnl Check for multibyte support, and if not found, utf8 compatibility library
4094 AC_DEFUN([CF_UTF8_LIB],
4095 [
4096 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4097         cf_save_LIBS="$LIBS"
4098         AC_TRY_LINK([
4099 #include <stdlib.h>],[putwc(0,0);],
4100         [cf_cv_utf8_lib=yes],
4101         [CF_FIND_LINKAGE([
4102 #include <libutf8.h>],[putwc(0,0);],utf8,
4103                 [cf_cv_utf8_lib=add-on],
4104                 [cf_cv_utf8_lib=no])
4105 ])])
4106
4107 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4108 # ncurses/ncursesw:
4109 if test "$cf_cv_utf8_lib" = "add-on" ; then
4110         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4111         CF_ADD_INCDIR($cf_cv_header_path_utf8)
4112         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4113         CF_ADD_LIBS($cf_cv_library_file_utf8)
4114 fi
4115 ])dnl
4116 dnl ---------------------------------------------------------------------------
4117 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4118 dnl ----------
4119 dnl Use AC_VERBOSE w/o the warnings
4120 AC_DEFUN([CF_VERBOSE],
4121 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
4122 CF_MSG_LOG([$1])
4123 ])dnl
4124 dnl ---------------------------------------------------------------------------
4125 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
4126 dnl ---------------
4127 dnl Check for compiler-support for weak symbols.
4128 dnl This works with "recent" gcc.
4129 AC_DEFUN([CF_WEAK_SYMBOLS],[
4130 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
4131
4132 AC_TRY_COMPILE([
4133 #include <stdio.h>],
4134 [
4135 #if defined(__GNUC__)
4136 #  if defined __USE_ISOC99
4137 #    define _cat_pragma(exp)    _Pragma(#exp)
4138 #    define _weak_pragma(exp)   _cat_pragma(weak name)
4139 #  else
4140 #    define _weak_pragma(exp)
4141 #  endif
4142 #  define _declare(name)        __extension__ extern __typeof__(name) name
4143 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
4144 #endif
4145
4146 weak_symbol(fopen);
4147 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
4148 ])
4149 ])dnl
4150 dnl ---------------------------------------------------------------------------
4151 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
4152 dnl --------------------
4153 dnl Command-line option to specify the Ada95 compiler.
4154 AC_DEFUN([CF_WITH_ADA_COMPILER],[
4155 AC_MSG_CHECKING(for ada-compiler)
4156 AC_ARG_WITH(ada-compiler,
4157         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
4158         [cf_ada_compiler=$withval],
4159         [cf_ada_compiler=gnatmake])
4160 AC_SUBST(cf_ada_compiler)
4161 AC_MSG_RESULT($cf_ada_compiler)
4162 ])dnl
4163 dnl ---------------------------------------------------------------------------
4164 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
4165 dnl -------------------
4166 dnl Command-line option to specify where Ada includes will install.
4167 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4168 AC_MSG_CHECKING(for ada-include)
4169 CF_WITH_PATH(ada-include,
4170    [  --with-ada-include=DIR  Ada includes are in DIR],
4171    ADA_INCLUDE,
4172    PREFIX/share/ada/adainclude,
4173    [$]prefix/share/ada/adainclude)
4174 AC_SUBST(ADA_INCLUDE)
4175 AC_MSG_RESULT($ADA_INCLUDE)
4176 ])dnl
4177 dnl ---------------------------------------------------------------------------
4178 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
4179 dnl -------------------
4180 dnl CF_WITH_ADA_LIBNAME
4181 dnl -------------------
4182 dnl Command-line option to specify how to name the resulting Ada library.
4183 dnl $1 = default value
4184 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4185 AC_MSG_CHECKING(for ada-libname)
4186 AC_ARG_WITH(ada-libname,
4187    [  --with-ada-libname=XXX  override default Ada library-name],
4188    ADA_LIBNAME=[$]withval,
4189    ADA_LIBNAME=$1)
4190 case "x$ADA_LIBNAME" in
4191 (x|xyes|xno)
4192         ADA_LIBNAME=$1
4193         ;;
4194 esac
4195 AC_SUBST(ADA_LIBNAME)
4196 AC_MSG_RESULT($ADA_LIBNAME)
4197 ])dnl
4198 dnl ---------------------------------------------------------------------------
4199 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
4200 dnl -------------------
4201 dnl Command-line option to specify where Ada objects will install.
4202 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4203 AC_MSG_CHECKING(for ada-objects)
4204 CF_WITH_PATH(ada-objects,
4205    [  --with-ada-objects=DIR  Ada objects are in DIR],
4206    ADA_OBJECTS,
4207    PREFIX/lib/ada/adalib,
4208    [$]prefix/lib/ada/adalib)
4209 AC_SUBST(ADA_OBJECTS)
4210 AC_MSG_RESULT($ADA_OBJECTS)
4211 ])dnl
4212 dnl ---------------------------------------------------------------------------
4213 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
4214 dnl ---------------------
4215 dnl Command-line option to specify if an Ada95 shared-library should be built,
4216 dnl and optionally what its soname should be.
4217 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4218 AC_REQUIRE([CF_GNAT_PROJECTS])
4219 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
4220 AC_ARG_WITH(ada-sharedlib,
4221         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
4222         [with_ada_sharedlib=$withval],
4223         [with_ada_sharedlib=no])
4224 AC_MSG_RESULT($with_ada_sharedlib)
4225
4226 if test "x$with_ada_sharedlib" != xno
4227 then
4228         if test "x$cf_gnat_projects" != xyes
4229         then
4230                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
4231                 with_ada_sharedlib=no
4232         fi
4233 fi
4234
4235 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4236 MAKE_ADA_SHAREDLIB="#"
4237
4238 if test "x$with_ada_sharedlib" != xno
4239 then
4240         MAKE_ADA_SHAREDLIB=
4241         if test "x$with_ada_sharedlib" != xyes
4242         then
4243                 ADA_SHAREDLIB="$with_ada_sharedlib"
4244         fi
4245 fi
4246
4247 AC_SUBST(ADA_SHAREDLIB)
4248 AC_SUBST(MAKE_ADA_SHAREDLIB)
4249 ])dnl
4250 dnl ---------------------------------------------------------------------------
4251 dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
4252 dnl ------------------
4253 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4254 dnl libraries.
4255 AC_DEFUN([CF_WITH_CURSES_DIR],[
4256
4257 AC_MSG_CHECKING(for specific curses-directory)
4258 AC_ARG_WITH(curses-dir,
4259         [  --with-curses-dir=DIR   directory in which (n)curses is installed],
4260         [cf_cv_curses_dir=$withval],
4261         [cf_cv_curses_dir=no])
4262 AC_MSG_RESULT($cf_cv_curses_dir)
4263
4264 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
4265 then
4266         CF_PATH_SYNTAX(withval)
4267         if test -d "$cf_cv_curses_dir"
4268         then
4269                 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4270                 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4271         fi
4272 fi
4273 ])dnl
4274 dnl ---------------------------------------------------------------------------
4275 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
4276 dnl ------------------
4277 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
4278 dnl "lib" prefix, e.g., because it used the dll naming convention.
4279 dnl
4280 dnl $1 = variable to set
4281 AC_DEFUN([CF_WITH_LIB_PREFIX],
4282 [
4283 AC_MSG_CHECKING(if you want to have a library-prefix)
4284 AC_ARG_WITH(lib-prefix,
4285         [  --with-lib-prefix       override library-prefix],
4286         [with_lib_prefix=$withval],
4287         [with_lib_prefix=auto])
4288 AC_MSG_RESULT($with_lib_prefix)
4289
4290 if test $with_lib_prefix = auto
4291 then
4292         CF_LIB_PREFIX($1)
4293 elif test $with_lib_prefix = no
4294 then
4295         LIB_PREFIX=
4296 else
4297         LIB_PREFIX=$with_lib_prefix
4298 fi
4299 ])dnl
4300 dnl ---------------------------------------------------------------------------
4301 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
4302 dnl ------------
4303 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4304 dnl defaulting to yes/no.
4305 dnl
4306 dnl $1 = option name
4307 dnl $2 = help-text
4308 dnl $3 = environment variable to set
4309 dnl $4 = default value, shown in the help-message, must be a constant
4310 dnl $5 = default value, if it's an expression & cannot be in the help-message
4311 dnl
4312 AC_DEFUN([CF_WITH_PATH],
4313 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4314 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4315 if ifelse([$5],,true,[test -n "$5"]) ; then
4316 CF_PATH_SYNTAX(withval)
4317 fi
4318 eval $3="$withval"
4319 AC_SUBST($3)dnl
4320 ])dnl
4321 dnl ---------------------------------------------------------------------------
4322 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
4323 dnl -------------------------
4324 dnl Allow the choice of the pkg-config library directory to be overridden.
4325 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4326
4327 case $PKG_CONFIG in
4328 (no|none|yes)
4329         AC_MSG_CHECKING(for pkg-config library directory)
4330         ;;
4331 (*)
4332         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4333         ;;
4334 esac
4335
4336 PKG_CONFIG_LIBDIR=no
4337 AC_ARG_WITH(pkg-config-libdir,
4338         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4339         [PKG_CONFIG_LIBDIR=$withval],
4340         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
4341
4342 case x$PKG_CONFIG_LIBDIR in
4343 (x/*)
4344         ;;
4345 (xyes)
4346         # Look for the library directory using the same prefix as the executable
4347         if test "x$PKG_CONFIG" = xnone
4348         then
4349                 cf_path=$prefix
4350         else
4351                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
4352         fi
4353
4354         # If you don't like using the default architecture, you have to specify the
4355         # intended library directory and corresponding compiler/linker options.
4356         #
4357         # This case allows for Debian's 2014-flavor of multiarch, along with the
4358         # most common variations before that point.  Some other variants spell the
4359         # directory differently, e.g., "pkg-config", and put it in unusual places.
4360         # pkg-config has always been poorly standardized, which is ironic...
4361         case x`(arch) 2>/dev/null` in
4362         (*64)
4363                 cf_search_path="\
4364                         $cf_path/lib/*64-linux-gnu \
4365                         $cf_path/share \
4366                         $cf_path/lib64 \
4367                         $cf_path/lib32 \
4368                         $cf_path/lib"
4369                 ;;
4370         (*)
4371                 cf_search_path="\
4372                         $cf_path/lib/*-linux-gnu \
4373                         $cf_path/share \
4374                         $cf_path/lib32 \
4375                         $cf_path/lib \
4376                         $cf_path/libdata"
4377                 ;;
4378         esac
4379
4380         CF_VERBOSE(list...)
4381         for cf_config in $cf_search_path
4382         do
4383                 CF_VERBOSE(checking $cf_config/pkgconfig)
4384                 if test -d $cf_config/pkgconfig
4385                 then
4386                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
4387                         AC_MSG_CHECKING(done)
4388                         break
4389                 fi
4390         done
4391         ;;
4392 (*)
4393         ;;
4394 esac
4395
4396 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
4397         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4398 fi
4399
4400 AC_SUBST(PKG_CONFIG_LIBDIR)
4401 ])dnl
4402 dnl ---------------------------------------------------------------------------
4403 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
4404 dnl ---------------
4405 dnl Check for POSIX thread library.
4406 AC_DEFUN([CF_WITH_PTHREAD],
4407 [
4408 AC_MSG_CHECKING(if you want to link with the pthread library)
4409 AC_ARG_WITH(pthread,
4410         [  --with-pthread          use POSIX thread library],
4411         [with_pthread=$withval],
4412         [with_pthread=no])
4413 AC_MSG_RESULT($with_pthread)
4414
4415 if test "$with_pthread" != no ; then
4416         AC_CHECK_HEADER(pthread.h,[
4417         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
4418
4419         for cf_lib_pthread in pthread c_r
4420         do
4421             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
4422             cf_save_LIBS="$LIBS"
4423             CF_ADD_LIB($cf_lib_pthread)
4424             AC_TRY_LINK([
4425 #include <pthread.h>
4426 ],[
4427                 int rc = pthread_create(0,0,0,0);
4428                 int r2 = pthread_mutexattr_settype(0, 0);
4429 ],[with_pthread=yes],[with_pthread=no])
4430             LIBS="$cf_save_LIBS"
4431             AC_MSG_RESULT($with_pthread)
4432             test "$with_pthread" = yes && break
4433         done
4434
4435         if test "$with_pthread" = yes ; then
4436             CF_ADD_LIB($cf_lib_pthread)
4437             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
4438         else
4439             AC_MSG_ERROR(Cannot link with pthread library)
4440         fi
4441         ])
4442 fi
4443 ])
4444 dnl ---------------------------------------------------------------------------
4445 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
4446 dnl ---------------
4447 dnl For testing, override the derived host system-type which is used to decide
4448 dnl things such as the linker commands used to build shared libraries.  This is
4449 dnl normally chosen automatically based on the type of system which you are
4450 dnl building on.  We use it for testing the configure script.
4451 dnl
4452 dnl This is different from the --host option: it is used only for testing parts
4453 dnl of the configure script which would not be reachable with --host since that
4454 dnl relies on the build environment being real, rather than mocked up.
4455 AC_DEFUN([CF_WITH_SYSTYPE],[
4456 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
4457 AC_ARG_WITH(system-type,
4458         [  --with-system-type=XXX  test: override derived host system-type],
4459 [AC_MSG_WARN(overriding system type to $withval)
4460         cf_cv_system_name=$withval
4461         host_os=$withval
4462 ])
4463 ])dnl
4464 dnl ---------------------------------------------------------------------------
4465 dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
4466 dnl ---------------
4467 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4468 dnl or adapt to the vendor's definitions to get equivalent functionality,
4469 dnl without losing the common non-POSIX features.
4470 dnl
4471 dnl Parameters:
4472 dnl     $1 is the nominal value for _XOPEN_SOURCE
4473 dnl     $2 is the nominal value for _POSIX_C_SOURCE
4474 AC_DEFUN([CF_XOPEN_SOURCE],[
4475 AC_REQUIRE([AC_CANONICAL_HOST])
4476 AC_REQUIRE([CF_POSIX_VISIBLE])
4477
4478 if test "$cf_cv_posix_visible" = no; then
4479
4480 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4481 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4482 cf_xopen_source=
4483
4484 case $host_os in
4485 (aix[[4-7]]*)
4486         cf_xopen_source="-D_ALL_SOURCE"
4487         ;;
4488 (msys)
4489         cf_XOPEN_SOURCE=600
4490         ;;
4491 (darwin[[0-8]].*)
4492         cf_xopen_source="-D_APPLE_C_SOURCE"
4493         ;;
4494 (darwin*)
4495         cf_xopen_source="-D_DARWIN_C_SOURCE"
4496         cf_XOPEN_SOURCE=
4497         ;;
4498 (freebsd*|dragonfly*|midnightbsd*)
4499         # 5.x headers associate
4500         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4501         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4502         cf_POSIX_C_SOURCE=200112L
4503         cf_XOPEN_SOURCE=600
4504         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4505         ;;
4506 (hpux11*)
4507         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4508         ;;
4509 (hpux*)
4510         cf_xopen_source="-D_HPUX_SOURCE"
4511         ;;
4512 (irix[[56]].*)
4513         cf_xopen_source="-D_SGI_SOURCE"
4514         cf_XOPEN_SOURCE=
4515         ;;
4516 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4517         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4518         ;;
4519 (minix*)
4520         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4521         ;;
4522 (mirbsd*)
4523         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4524         cf_XOPEN_SOURCE=
4525         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4526         ;;
4527 (netbsd*)
4528         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4529         ;;
4530 (openbsd[[4-9]]*)
4531         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4532         cf_xopen_source="-D_BSD_SOURCE"
4533         cf_XOPEN_SOURCE=600
4534         ;;
4535 (openbsd*)
4536         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4537         ;;
4538 (osf[[45]]*)
4539         cf_xopen_source="-D_OSF_SOURCE"
4540         ;;
4541 (nto-qnx*)
4542         cf_xopen_source="-D_QNX_SOURCE"
4543         ;;
4544 (sco*)
4545         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4546         ;;
4547 (solaris2.*)
4548         cf_xopen_source="-D__EXTENSIONS__"
4549         cf_cv_xopen_source=broken
4550         ;;
4551 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4552         cf_XOPEN_SOURCE=
4553         cf_POSIX_C_SOURCE=
4554         ;;
4555 (*)
4556         CF_TRY_XOPEN_SOURCE
4557         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4558         ;;
4559 esac
4560
4561 if test -n "$cf_xopen_source" ; then
4562         CF_ADD_CFLAGS($cf_xopen_source,true)
4563 fi
4564
4565 dnl In anything but the default case, we may have system-specific setting
4566 dnl which is still not guaranteed to provide all of the entrypoints that
4567 dnl _XOPEN_SOURCE would yield.
4568 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4569         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4570         AC_TRY_COMPILE([#include <stdlib.h>],[
4571 #ifndef _XOPEN_SOURCE
4572 make an error
4573 #endif],
4574         [cf_XOPEN_SOURCE_set=yes],
4575         [cf_XOPEN_SOURCE_set=no])
4576         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4577         if test $cf_XOPEN_SOURCE_set = yes
4578         then
4579                 AC_TRY_COMPILE([#include <stdlib.h>],[
4580 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4581 make an error
4582 #endif],
4583                 [cf_XOPEN_SOURCE_set_ok=yes],
4584                 [cf_XOPEN_SOURCE_set_ok=no])
4585                 if test $cf_XOPEN_SOURCE_set_ok = no
4586                 then
4587                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4588                 fi
4589         else
4590                 CF_TRY_XOPEN_SOURCE
4591         fi
4592 fi
4593 fi # cf_cv_posix_visible
4594 ])