Ada95/aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright 2018-2020,2021 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 1.183 2021/09/05 21:33:34 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: 15 updated: 2020/12/31 10:54:15
 104 dnl -------------
 105 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 106 dnl $1 = flags to add
 107 dnl $2 = if given makes this macro verbose.
 108 dnl
 109 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 110 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 111 dnl confused by the quotes (which require backslashes to keep them usable).
 112 AC_DEFUN([CF_ADD_CFLAGS],
 113 [
 114 cf_fix_cppflags=no
 115 cf_new_cflags=
 116 cf_new_cppflags=
 117 cf_new_extra_cppflags=
 118
 119 for cf_add_cflags in $1
 120 do
 121 case "$cf_fix_cppflags" in
 122 (no)
 123         case "$cf_add_cflags" in
 124         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 125                 case "$cf_add_cflags" in
 126                 (-D*)
 127                         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 128
 129                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 130                                 && test -z "${cf_tst_cflags}" \
 131                                 && cf_fix_cppflags=yes
 132
 133                         if test "$cf_fix_cppflags" = yes ; then
 134                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 135                                 continue
 136                         elif test "${cf_tst_cflags}" = "\"'" ; then
 137                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 138                                 continue
 139                         fi
 140                         ;;
 141                 esac
 142                 case "$CPPFLAGS" in
 143                 (*$cf_add_cflags)
 144                         ;;
 145                 (*)
 146                         case "$cf_add_cflags" in
 147                         (-D*)
 148                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 149                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 150                                 ;;
 151                         esac
 152                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 153                         ;;
 154                 esac
 155                 ;;
 156         (*)
 157                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 158                 ;;
 159         esac
 160         ;;
 161 (yes)
 162         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 163
 164         cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
 165
 166         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 167                 && test -z "${cf_tst_cflags}" \
 168                 && cf_fix_cppflags=no
 169         ;;
 170 esac
 171 done
 172
 173 if test -n "$cf_new_cflags" ; then
 174         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 175         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 176 fi
 177
 178 if test -n "$cf_new_cppflags" ; then
 179         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 180         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 181 fi
 182
 183 if test -n "$cf_new_extra_cppflags" ; then
 184         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 185         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 186 fi
 187
 188 AC_SUBST(EXTRA_CPPFLAGS)
 189
 190 ])dnl
 191 dnl ---------------------------------------------------------------------------
 192 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
 193 dnl -------------
 194 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it is
 195 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 196 dnl but old versions (and some misinstalled ones) need that.  To make things
 197 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 198 dnl the include-path).
 199 AC_DEFUN([CF_ADD_INCDIR],
 200 [
 201 if test -n "$1" ; then
 202   for cf_add_incdir in $1
 203   do
 204         while test "$cf_add_incdir" != /usr/include
 205         do
 206           if test -d "$cf_add_incdir"
 207           then
 208                 cf_have_incdir=no
 209                 if test -n "$CFLAGS$CPPFLAGS" ; then
 210                   # a loop is needed to ensure we can add subdirs of existing dirs
 211                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 212                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 213                           cf_have_incdir=yes; break
 214                         fi
 215                   done
 216                 fi
 217
 218                 if test "$cf_have_incdir" = no ; then
 219                   if test "$cf_add_incdir" = /usr/local/include ; then
 220                         if test "$GCC" = yes
 221                         then
 222                           cf_save_CPPFLAGS=$CPPFLAGS
 223                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 224                           AC_TRY_COMPILE([#include <stdio.h>],
 225                                   [printf("Hello")],
 226                                   [],
 227                                   [cf_have_incdir=yes])
 228                           CPPFLAGS=$cf_save_CPPFLAGS
 229                         fi
 230                   fi
 231                 fi
 232
 233                 if test "$cf_have_incdir" = no ; then
 234                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 235                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 236
 237                   cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
 238                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 239                   cf_add_incdir="$cf_top_incdir"
 240                 else
 241                   break
 242                 fi
 243           else
 244                 break
 245           fi
 246         done
 247   done
 248 fi
 249 ])dnl
 250 dnl ---------------------------------------------------------------------------
 251 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 252 dnl ----------
 253 dnl Add a library, used to enforce consistency.
 254 dnl
 255 dnl $1 = library to add, without the "-l"
 256 dnl $2 = variable to update (default $LIBS)
 257 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 258 dnl ---------------------------------------------------------------------------
 259 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
 260 dnl -------------
 261 dnl     Adds to the library-path
 262 dnl
 263 dnl     Some machines have trouble with multiple -L options.
 264 dnl
 265 dnl $1 is the (list of) directory(s) to add
 266 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 267 dnl
 268 AC_DEFUN([CF_ADD_LIBDIR],
 269 [
 270 if test -n "$1" ; then
 271         for cf_add_libdir in $1
 272         do
 273                 if test "$cf_add_libdir" = /usr/lib ; then
 274                         :
 275                 elif test -d "$cf_add_libdir"
 276                 then
 277                         cf_have_libdir=no
 278                         if test -n "$LDFLAGS$LIBS" ; then
 279                                 # a loop is needed to ensure we can add subdirs of existing dirs
 280                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 281                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 282                                                 cf_have_libdir=yes; break
 283                                         fi
 284                                 done
 285                         fi
 286                         if test "$cf_have_libdir" = no ; then
 287                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 288                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 289                         fi
 290                 fi
 291         done
 292 fi
 293 ])dnl
 294 dnl ---------------------------------------------------------------------------
 295 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 296 dnl -----------
 297 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 298 dnl prepended to an existing list, since their dependencies are assumed to
 299 dnl already exist in the list.
 300 dnl
 301 dnl $1 = libraries to add, with the "-l", etc.
 302 dnl $2 = variable to update (default $LIBS)
 303 AC_DEFUN([CF_ADD_LIBS],[
 304 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
 305 # reverse order
 306 cf_add_0lib=
 307 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
 308 # filter duplicates
 309 for cf_add_1lib in $cf_add_0lib; do
 310         for cf_add_2lib in $cf_add_libs; do
 311                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
 312                         cf_add_1lib=
 313                         break
 314                 fi
 315         done
 316         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
 317 done
 318 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 319 ])dnl
 320 dnl ---------------------------------------------------------------------------
 321 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
 322 dnl ------------------
 323 dnl Append to a search-list for a nonstandard header/lib-file
 324 dnl     $1 = the variable to return as result
 325 dnl     $2 = the package name
 326 dnl     $3 = the subdirectory, e.g., bin, include or lib
 327 dnl $4 = the directory under which we will test for subdirectories
 328 dnl $5 = a directory that we do not want $4 to match
 329 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 330 [
 331 test "x$4" != "x$5" && \
 332 test -d "$4" && \
 333 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
 334         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 335         test -d "$4/$3" &&          $1="[$]$1 $4/$3"
 336         test -d "$4/$3/$2" &&       $1="[$]$1 $4/$3/$2"
 337         test -d "$4/$3/$2/$3" &&    $1="[$]$1 $4/$3/$2/$3"
 338         test -d "$4/$2/$3" &&       $1="[$]$1 $4/$2/$3"
 339         test -d "$4/$2/$3/$2" &&    $1="[$]$1 $4/$2/$3/$2"
 340 }
 341 ])dnl
 342 dnl ---------------------------------------------------------------------------
 343 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
 344 dnl ----------------
 345 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
 346 dnl $1 = flags to add
 347 dnl $2 = if given makes this macro verbose.
 348 define([CF_APPEND_CFLAGS],
 349 [
 350 for cf_add_cflags in $1
 351 do
 352         case "x$cf_add_cflags" in
 353         (x-[[DU]]*)
 354                 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
 355                 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
 356                 ;;
 357         esac
 358         CF_ADD_CFLAGS([$cf_add_cflags],[$2])
 359 done
 360 ])dnl
 361 dnl ---------------------------------------------------------------------------
 362 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 363 dnl --------------
 364 dnl use this macro for appending text without introducing an extra blank at
 365 dnl the beginning
 366 define([CF_APPEND_TEXT],
 367 [
 368         test -n "[$]$1" && $1="[$]$1 "
 369         $1="[$]{$1}$2"
 370 ])dnl
 371 dnl ---------------------------------------------------------------------------
 372 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 373 dnl --------------
 374 dnl Allow user to disable a normally-on option.
 375 AC_DEFUN([CF_ARG_DISABLE],
 376 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 377 dnl ---------------------------------------------------------------------------
 378 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
 379 dnl -------------
 380 dnl Allow user to enable a normally-off option.
 381 AC_DEFUN([CF_ARG_ENABLE],
 382 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
 383 dnl ---------------------------------------------------------------------------
 384 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 385 dnl -------------
 386 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 387 dnl values.
 388 dnl
 389 dnl Parameters:
 390 dnl $1 = option name
 391 dnl $2 = help-string
 392 dnl $3 = action to perform if option is not default
 393 dnl $4 = action if perform if option is default
 394 dnl $5 = default option value (either 'yes' or 'no')
 395 AC_DEFUN([CF_ARG_OPTION],
 396 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 397         if test "$enableval" != "$5" ; then
 398 ifelse([$3],,[    :]dnl
 399 ,[    $3]) ifelse([$4],,,[
 400         else
 401                 $4])
 402         fi],[enableval=$5 ifelse([$4],,,[
 403         $4
 404 ])dnl
 405 ])])dnl
 406 dnl ---------------------------------------------------------------------------
 407 dnl CF_AR_FLAGS version: 9 updated: 2021/01/01 13:31:04
 408 dnl -----------
 409 dnl Check for suitable "ar" (archiver) options for updating an archive.
 410 dnl
 411 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 412 dnl as well as a workaround for breakage of make's archive rules by the GNU
 413 dnl binutils "ar" program.
 414 AC_DEFUN([CF_AR_FLAGS],[
 415 AC_REQUIRE([CF_PROG_AR])
 416
 417 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 418         case "$cf_cv_system_name" in
 419         (*-msvc*)
 420                 cf_cv_ar_flags=''
 421                 cat >mk_static_lib.sh <<-EOF
 422                 #!$SHELL
 423                 MSVC_BIN="[$]AR"
 424                 out="\[$]1"
 425                 shift
 426                 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
 427                 EOF
 428                 chmod +x mk_static_lib.sh
 429                 AR=`pwd`/mk_static_lib.sh
 430                 ;;
 431         (*)
 432                 cf_cv_ar_flags=unknown
 433                 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 434                 do
 435
 436                         # check if $ARFLAGS already contains this choice
 437                         if test "x$ARFLAGS" != "x" ; then
 438                                 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 439                                 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 440                                         cf_cv_ar_flags=
 441                                         break
 442                                 fi
 443                         fi
 444
 445                         rm -f "conftest.$ac_cv_objext"
 446                         rm -f conftest.a
 447
 448                         cat >"conftest.$ac_ext" <<EOF
 449 #line __oline__ "configure"
 450 int     testdata[[3]] = { 123, 456, 789 };
 451 EOF
 452                         if AC_TRY_EVAL(ac_compile) ; then
 453                                 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 454                                 $AR $ARFLAGS "$cf_ar_flags" conftest.a "conftest.$ac_cv_objext" 2>&AC_FD_CC 1>/dev/null
 455                                 if test -f conftest.a ; then
 456                                         cf_cv_ar_flags="$cf_ar_flags"
 457                                         break
 458                                 fi
 459                         else
 460                                 CF_VERBOSE(cannot compile test-program)
 461                                 break
 462                         fi
 463                 done
 464                 rm -f conftest.a "conftest.$ac_ext" "conftest.$ac_cv_objext"
 465                 ;;
 466         esac
 467 ])
 468
 469 if test -n "$ARFLAGS" ; then
 470         if test -n "$cf_cv_ar_flags" ; then
 471                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 472         fi
 473 else
 474         ARFLAGS=$cf_cv_ar_flags
 475 fi
 476
 477 AC_SUBST(ARFLAGS)
 478 ])
 479 dnl ---------------------------------------------------------------------------
 480 dnl CF_BUILD_CC version: 9 updated: 2021/01/02 09:31:20
 481 dnl -----------
 482 dnl If we're cross-compiling, allow the user to override the tools and their
 483 dnl options.  The configure script is oriented toward identifying the host
 484 dnl compiler, etc., but we need a build compiler to generate parts of the
 485 dnl source.
 486 dnl
 487 dnl $1 = default for $CPPFLAGS
 488 dnl $2 = default for $LIBS
 489 AC_DEFUN([CF_BUILD_CC],[
 490 CF_ACVERSION_CHECK(2.52,,
 491         [AC_REQUIRE([CF_PROG_EXT])])
 492 if test "$cross_compiling" = yes ; then
 493
 494         # defaults that we might want to override
 495         : ${BUILD_CFLAGS:=''}
 496         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 497         : ${BUILD_LDFLAGS:=''}
 498         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 499         : ${BUILD_EXEEXT:='$x'}
 500         : ${BUILD_OBJEXT:='o'}
 501
 502         AC_ARG_WITH(build-cc,
 503                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 504                 [BUILD_CC="$withval"],
 505                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 506         AC_MSG_CHECKING(for native build C compiler)
 507         AC_MSG_RESULT($BUILD_CC)
 508
 509         AC_MSG_CHECKING(for native build C preprocessor)
 510         AC_ARG_WITH(build-cpp,
 511                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 512                 [BUILD_CPP="$withval"],
 513                 [BUILD_CPP='${BUILD_CC} -E'])
 514         AC_MSG_RESULT($BUILD_CPP)
 515
 516         AC_MSG_CHECKING(for native build C flags)
 517         AC_ARG_WITH(build-cflags,
 518                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 519                 [BUILD_CFLAGS="$withval"])
 520         AC_MSG_RESULT($BUILD_CFLAGS)
 521
 522         AC_MSG_CHECKING(for native build C preprocessor-flags)
 523         AC_ARG_WITH(build-cppflags,
 524                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 525                 [BUILD_CPPFLAGS="$withval"])
 526         AC_MSG_RESULT($BUILD_CPPFLAGS)
 527
 528         AC_MSG_CHECKING(for native build linker-flags)
 529         AC_ARG_WITH(build-ldflags,
 530                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 531                 [BUILD_LDFLAGS="$withval"])
 532         AC_MSG_RESULT($BUILD_LDFLAGS)
 533
 534         AC_MSG_CHECKING(for native build linker-libraries)
 535         AC_ARG_WITH(build-libs,
 536                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 537                 [BUILD_LIBS="$withval"])
 538         AC_MSG_RESULT($BUILD_LIBS)
 539
 540         # this assumes we're on Unix.
 541         BUILD_EXEEXT=
 542         BUILD_OBJEXT=o
 543
 544         : ${BUILD_CC:='${CC}'}
 545
 546         if { test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}'; } ; then
 547                 AC_MSG_ERROR([Cross-build requires two compilers.
 548 Use --with-build-cc to specify the native compiler.])
 549         fi
 550
 551 else
 552         : ${BUILD_CC:='${CC}'}
 553         : ${BUILD_CPP:='${CPP}'}
 554         : ${BUILD_CFLAGS:='${CFLAGS}'}
 555         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 556         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 557         : ${BUILD_LIBS:='${LIBS}'}
 558         : ${BUILD_EXEEXT:='$x'}
 559         : ${BUILD_OBJEXT:='o'}
 560 fi
 561
 562 AC_SUBST(BUILD_CC)
 563 AC_SUBST(BUILD_CPP)
 564 AC_SUBST(BUILD_CFLAGS)
 565 AC_SUBST(BUILD_CPPFLAGS)
 566 AC_SUBST(BUILD_LDFLAGS)
 567 AC_SUBST(BUILD_LIBS)
 568 AC_SUBST(BUILD_EXEEXT)
 569 AC_SUBST(BUILD_OBJEXT)
 570 ])dnl
 571 dnl ---------------------------------------------------------------------------
 572 dnl CF_C11_NORETURN version: 3 updated: 2021/03/28 11:36:23
 573 dnl ---------------
 574 AC_DEFUN([CF_C11_NORETURN],
 575 [
 576 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
 577 CF_ARG_ENABLE(stdnoreturn,
 578         [  --enable-stdnoreturn    enable C11 _Noreturn feature for diagnostics],
 579         [enable_stdnoreturn=yes],
 580         [enable_stdnoreturn=no])
 581 AC_MSG_RESULT($enable_stdnoreturn)
 582
 583 if test $enable_stdnoreturn = yes; then
 584 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
 585         [AC_TRY_COMPILE([
 586 #include <stdio.h>
 587 #include <stdlib.h>
 588 #include <stdnoreturn.h>
 589 static _Noreturn void giveup(void) { exit(0); }
 590         ],
 591         [if (feof(stdin)) giveup()],
 592         cf_cv_c11_noreturn=yes,
 593         cf_cv_c11_noreturn=no)
 594         ])
 595 else
 596         cf_cv_c11_noreturn=no,
 597 fi
 598
 599 if test "$cf_cv_c11_noreturn" = yes; then
 600         AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
 601         AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
 602         HAVE_STDNORETURN_H=1
 603 else
 604         HAVE_STDNORETURN_H=0
 605 fi
 606
 607 AC_SUBST(HAVE_STDNORETURN_H)
 608 AC_SUBST(STDC_NORETURN)
 609 ])dnl
 610 dnl ---------------------------------------------------------------------------
 611 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
 612 dnl ---------------
 613 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 614 dnl into CC.  This will not help with broken scripts that wrap the compiler
 615 dnl with options, but eliminates a more common category of user confusion.
 616 dnl
 617 dnl In particular, it addresses the problem of being able to run the C
 618 dnl preprocessor in a consistent manner.
 619 dnl
 620 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 621 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 622 dnl outweighs that limitation.
 623 AC_DEFUN([CF_CC_ENV_FLAGS],
 624 [
 625 # This should have been defined by AC_PROG_CC
 626 : "${CC:=cc}"
 627
 628 AC_MSG_CHECKING(\$CFLAGS variable)
 629 case "x$CFLAGS" in
 630 (*-[[IUD]]*)
 631         AC_MSG_RESULT(broken)
 632         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 633         cf_flags="$CFLAGS"
 634         CFLAGS=
 635         for cf_arg in $cf_flags
 636         do
 637                 CF_ADD_CFLAGS($cf_arg)
 638         done
 639         ;;
 640 (*)
 641         AC_MSG_RESULT(ok)
 642         ;;
 643 esac
 644
 645 AC_MSG_CHECKING(\$CC variable)
 646 case "$CC" in
 647 (*[[\ \ ]]-*)
 648         AC_MSG_RESULT(broken)
 649         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 650         # humor him...
 651         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 652         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 653         CC="$cf_prog"
 654         for cf_arg in $cf_flags
 655         do
 656                 case "x$cf_arg" in
 657                 (x-[[IUDfgOW]]*)
 658                         CF_ADD_CFLAGS($cf_arg)
 659                         ;;
 660                 (*)
 661                         CC="$CC $cf_arg"
 662                         ;;
 663                 esac
 664         done
 665         CF_VERBOSE(resulting CC: '$CC')
 666         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 667         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 668         ;;
 669 (*)
 670         AC_MSG_RESULT(ok)
 671         ;;
 672 esac
 673 ])dnl
 674 dnl ---------------------------------------------------------------------------
 675 dnl CF_CFG_DEFAULTS version: 16 updated: 2021/01/04 19:33:05
 676 dnl ---------------
 677 dnl Determine the default configuration into which we'll install ncurses.  This
 678 dnl can be overridden by the user's command-line options.  There's two items to
 679 dnl look for:
 680 dnl     1. the prefix (e.g., /usr)
 681 dnl     2. the header files (e.g., /usr/include/ncurses)
 682 dnl We'll look for a previous installation of ncurses and use the same defaults.
 683 dnl
 684 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 685 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 686 dnl programs from a vendor's.
 687 AC_DEFUN([CF_CFG_DEFAULTS],
 688 [AC_REQUIRE([AC_PROG_FGREP])dnl
 689
 690 AC_MSG_CHECKING(for prefix)
 691 if test "x$prefix" = "xNONE" ; then
 692         case "$cf_cv_system_name" in
 693                 # non-vendor systems don't have a conflict
 694         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 695                 prefix=/usr
 696                 ;;
 697         (*)     prefix=$ac_default_prefix
 698                 ;;
 699         esac
 700 fi
 701 AC_MSG_RESULT($prefix)
 702
 703 if test "x$prefix" = "xNONE" ; then
 704 AC_MSG_CHECKING(for default include-directory)
 705 test -n "$verbose" && echo 1>&AC_FD_MSG
 706 for cf_symbol in \
 707         "$includedir" \
 708         "$includedir/ncurses" \
 709         "$prefix/include" \
 710         "$prefix/include/ncurses" \
 711         /usr/local/include \
 712         /usr/local/include/ncurses \
 713         /usr/include \
 714         /usr/include/ncurses
 715 do
 716         cf_dir=`eval echo "$cf_symbol"`
 717         if test -f "$cf_dir/curses.h" ; then
 718         if ( ${FGREP-fgrep} NCURSES_VERSION "$cf_dir/curses.h" >/dev/null 2>&1 ) ; then
 719                 includedir="$cf_symbol"
 720                 test -n "$verbose"  && echo $ECHO_N "   found " 1>&AC_FD_MSG
 721                 break
 722         fi
 723         fi
 724         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 725 done
 726 AC_MSG_RESULT($includedir)
 727 fi
 728 ])dnl
 729 dnl ---------------------------------------------------------------------------
 730 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
 731 dnl --------------
 732 dnl Check if we're accidentally using a cache from a different machine.
 733 dnl Derive the system name, as a check for reusing the autoconf cache.
 734 dnl
 735 dnl If we've packaged config.guess and config.sub, run that (since it does a
 736 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 737 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 738 dnl which is useful in cross-compiles.
 739 dnl
 740 dnl Note: we would use $ac_config_sub, but that is one of the places where
 741 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 742 AC_DEFUN([CF_CHECK_CACHE],
 743 [
 744 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
 745         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 746         system_name="$host_os"
 747 else
 748         system_name="`(uname -s -r) 2>/dev/null`"
 749         if test -z "$system_name" ; then
 750                 system_name="`(hostname) 2>/dev/null`"
 751         fi
 752 fi
 753 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 754 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 755
 756 test -z "$system_name" && system_name="$cf_cv_system_name"
 757 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 758
 759 if test ".$system_name" != ".$cf_cv_system_name" ; then
 760         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 761         AC_MSG_ERROR("Please remove config.cache and try again.")
 762 fi
 763 ])dnl
 764 dnl ---------------------------------------------------------------------------
 765 dnl CF_CHECK_GNAT_VERSION version: 4 updated: 2021/01/01 13:31:04
 766 dnl ---------------------
 767 AC_DEFUN([CF_CHECK_GNAT_VERSION],
 768 [
 769 AC_REQUIRE([CF_GNAT_VERSION])
 770 case "$cf_cv_gnat_version" in
 771 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
 772         cf_cv_prog_gnat_correct=yes
 773         ;;
 774 (*)
 775         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
 776         cf_cv_prog_gnat_correct=no
 777         ;;
 778 esac
 779 ])
 780 dnl ---------------------------------------------------------------------------
 781 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
 782 dnl -----------------
 783 dnl Check if the given compiler is really clang.  clang's C driver defines
 784 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
 785 dnl not ignore some gcc options.
 786 dnl
 787 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
 788 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
 789 dnl the wrappers for gcc and g++ warnings.
 790 dnl
 791 dnl $1 = GCC (default) or GXX
 792 dnl $2 = CLANG_COMPILER (default)
 793 dnl $3 = CFLAGS (default) or CXXFLAGS
 794 AC_DEFUN([CF_CLANG_COMPILER],[
 795 ifelse([$2],,CLANG_COMPILER,[$2])=no
 796
 797 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 798         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
 799         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
 800         AC_TRY_COMPILE([],[
 801 #ifdef __clang__
 802 #else
 803 make an error
 804 #endif
 805 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
 806 ],[])
 807         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
 808         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
 809 fi
 810
 811 CLANG_VERSION=none
 812
 813 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
 814         case "$CC" in
 815         (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
 816                 AC_MSG_WARN(replacing broken compiler alias $CC)
 817                 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
 818                 CC=clang
 819                 ;;
 820         esac
 821
 822         AC_MSG_CHECKING(version of $CC)
 823         CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
 824         test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
 825         AC_MSG_RESULT($CLANG_VERSION)
 826
 827         for cf_clang_opt in \
 828                 -Qunused-arguments \
 829                 -Wno-error=implicit-function-declaration
 830         do
 831                 AC_MSG_CHECKING(if option $cf_clang_opt works)
 832                 cf_save_CFLAGS="$CFLAGS"
 833                 CFLAGS="$CFLAGS $cf_clang_opt"
 834                 AC_TRY_LINK([
 835                         #include <stdio.h>],[
 836                         printf("hello!\\n");],[
 837                         cf_clang_optok=yes],[
 838                         cf_clang_optok=no])
 839                 AC_MSG_RESULT($cf_clang_optok)
 840                 CFLAGS="$cf_save_CFLAGS"
 841                 if test "$cf_clang_optok" = yes; then
 842                         CF_VERBOSE(adding option $cf_clang_opt)
 843                         CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
 844                 fi
 845         done
 846 fi
 847 ])
 848 dnl ---------------------------------------------------------------------------
 849 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
 850 dnl -----------------
 851 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 852 dnl character-strings.
 853 dnl
 854 dnl It is ambiguous because the specification accommodated the pre-ANSI
 855 dnl compilers bundled by more than one vendor in lieu of providing a standard C
 856 dnl compiler other than by costly add-ons.  Because of this, the specification
 857 dnl did not take into account the use of const for telling the compiler that
 858 dnl string literals would be in readonly memory.
 859 dnl
 860 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
 861 dnl let the compiler decide how to represent Xt's strings which were #define'd.
 862 dnl That does not solve the problem of using the block of Xt's strings which
 863 dnl are compiled into the library (and is less efficient than one might want).
 864 dnl
 865 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
 866 dnl when compiling the library and compiling using the library, to tell the
 867 dnl compiler that String is const.
 868 AC_DEFUN([CF_CONST_X_STRING],
 869 [
 870 AC_REQUIRE([AC_PATH_XTRA])
 871
 872 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
 873
 874 AC_TRY_COMPILE(
 875 [
 876 #include <stdlib.h>
 877 #include <X11/Intrinsic.h>
 878 ],
 879 [String foo = malloc(1); free((void*)foo)],[
 880
 881 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
 882         AC_TRY_COMPILE(
 883                 [
 884 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
 885 #undef  XTSTRINGDEFINES /* X11R5 and later */
 886 #include <stdlib.h>
 887 #include <X11/Intrinsic.h>
 888                 ],[String foo = malloc(1); *foo = 0],[
 889                         cf_cv_const_x_string=no
 890                 ],[
 891                         cf_cv_const_x_string=yes
 892                 ])
 893 ])
 894
 895 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
 896
 897 case "$cf_cv_const_x_string" in
 898 (no)
 899         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
 900         ;;
 901 (*)
 902         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
 903         ;;
 904 esac
 905
 906 ])
 907 ])dnl
 908 dnl ---------------------------------------------------------------------------
 909 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
 910 dnl -----------------
 911 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
 912 dnl character-strings.
 913 dnl
 914 dnl It is ambiguous because the specification accommodated the pre-ANSI
 915 dnl compilers bundled by more than one vendor in lieu of providing a standard C
 916 dnl compiler other than by costly add-ons.  Because of this, the specification
 917 dnl did not take into account the use of const for telling the compiler that
 918 dnl string literals would be in readonly memory.
 919 dnl
 920 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
 921 dnl let the compiler decide how to represent Xt's strings which were #define'd.
 922 dnl That does not solve the problem of using the block of Xt's strings which
 923 dnl are compiled into the library (and is less efficient than one might want).
 924 dnl
 925 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
 926 dnl when compiling the library and compiling using the library, to tell the
 927 dnl compiler that String is const.
 928 AC_DEFUN([CF_CONST_X_STRING],
 929 [
 930 AC_REQUIRE([AC_PATH_XTRA])
 931
 932 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
 933
 934 AC_TRY_COMPILE(
 935 [
 936 #include <stdlib.h>
 937 #include <X11/Intrinsic.h>
 938 ],
 939 [String foo = malloc(1); free((void*)foo)],[
 940
 941 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
 942         AC_TRY_COMPILE(
 943                 [
 944 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
 945 #undef  XTSTRINGDEFINES /* X11R5 and later */
 946 #include <stdlib.h>
 947 #include <X11/Intrinsic.h>
 948                 ],[String foo = malloc(1); *foo = 0],[
 949                         cf_cv_const_x_string=no
 950                 ],[
 951                         cf_cv_const_x_string=yes
 952                 ])
 953 ])
 954
 955 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
 956
 957 case "$cf_cv_const_x_string" in
 958 (no)
 959         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
 960         ;;
 961 (*)
 962         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
 963         ;;
 964 esac
 965
 966 ])
 967 ])dnl
 968 dnl ---------------------------------------------------------------------------
 969 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
 970 dnl ----------------
 971 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 972 dnl variations of ncurses' installs.
 973 dnl
 974 dnl $1 = ncurses when looking for ncurses, or is empty
 975 AC_DEFUN([CF_CURSES_HEADER],[
 976 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
 977 cf_cv_ncurses_header=none
 978 for cf_header in \
 979         ncurses.h ifelse($1,,,[$1/ncurses.h]) \
 980         curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
 981 do
 982 AC_TRY_COMPILE([#include <${cf_header}>],
 983         [initscr(); tgoto("?", 0,0)],
 984         [cf_cv_ncurses_header=$cf_header; break],[])
 985 done
 986 ])
 987
 988 if test "$cf_cv_ncurses_header" = none ; then
 989         AC_MSG_ERROR(No curses header-files found)
 990 fi
 991
 992 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
 993 AC_CHECK_HEADERS($cf_cv_ncurses_header)
 994 ])dnl
 995 dnl ---------------------------------------------------------------------------
 996 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
 997 dnl ----------
 998 dnl "dirname" is not portable, so we fake it with a shell script.
 999 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1000 dnl ---------------------------------------------------------------------------
1001 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1002 dnl ---------------
1003 dnl You can always use "make -n" to see the actual options, but it is hard to
1004 dnl pick out/analyze warning messages when the compile-line is long.
1005 dnl
1006 dnl Sets:
1007 dnl     ECHO_LT - symbol to control if libtool is verbose
1008 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1009 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1010 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1011 dnl     ECHO_CC - symbol to put before any "cc" line
1012 dnl
1013 AC_DEFUN([CF_DISABLE_ECHO],[
1014 AC_MSG_CHECKING(if you want to see long compiling messages)
1015 CF_ARG_DISABLE(echo,
1016         [  --disable-echo          do not display "compiling" commands],
1017         [
1018         ECHO_LT='--silent'
1019         ECHO_LD='@echo linking [$]@;'
1020         RULE_CC='@echo compiling [$]<'
1021         SHOW_CC='@echo compiling [$]@'
1022         ECHO_CC='@'
1023 ],[
1024         ECHO_LT=''
1025         ECHO_LD=''
1026         RULE_CC=''
1027         SHOW_CC=''
1028         ECHO_CC=''
1029 ])
1030 AC_MSG_RESULT($enableval)
1031 AC_SUBST(ECHO_LT)
1032 AC_SUBST(ECHO_LD)
1033 AC_SUBST(RULE_CC)
1034 AC_SUBST(SHOW_CC)
1035 AC_SUBST(ECHO_CC)
1036 ])dnl
1037 dnl ---------------------------------------------------------------------------
1038 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1039 dnl ------------------------
1040 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1041 AC_MSG_CHECKING(if we want to use GNAT projects)
1042 CF_ARG_DISABLE(gnat-projects,
1043         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1044         [enable_gnat_projects=no],
1045         [enable_gnat_projects=yes])
1046 AC_MSG_RESULT($enable_gnat_projects)
1047 ])dnl
1048 dnl ---------------------------------------------------------------------------
1049 dnl CF_ENABLE_BROKEN_LINKER version: 2 updated: 2021/01/02 17:09:14
1050 dnl -----------------------
1051 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
1052 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1053 dnl an unconditional feature.
1054 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1055
1056 AC_MSG_CHECKING(if you want broken-linker support code)
1057 AC_ARG_ENABLE(broken_linker,
1058         [  --enable-broken_linker  compile with broken-linker support code],
1059         [with_broken_linker=$enableval],
1060         [with_broken_linker=no])
1061 AC_MSG_RESULT($with_broken_linker)
1062
1063 : "${BROKEN_LINKER:=0}"
1064 if test "x$with_broken_linker" = xyes ; then
1065         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1066         BROKEN_LINKER=1
1067 fi
1068 AC_SUBST(BROKEN_LINKER)
1069 ])dnl
1070 dnl ---------------------------------------------------------------------------
1071 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1072 dnl ------------------
1073 dnl Configure-option to enable gcc warnings
1074 dnl
1075 dnl $1 = extra options to add, if supported
1076 dnl $2 = option for checking attributes.  By default, this is done when
1077 dnl      warnings are enabled.  For other values:
1078 dnl      yes: always do this, e.g., to use in generated library-headers
1079 dnl      no: never do this
1080 AC_DEFUN([CF_ENABLE_WARNINGS],[
1081 if test "$GCC" = yes || test "$GXX" = yes
1082 then
1083 CF_FIX_WARNINGS(CFLAGS)
1084 CF_FIX_WARNINGS(CPPFLAGS)
1085 CF_FIX_WARNINGS(LDFLAGS)
1086 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1087 CF_ARG_ENABLE(warnings,
1088         [  --enable-warnings       test: turn on gcc compiler warnings],
1089         [enable_warnings=yes],
1090         [enable_warnings=no])
1091 AC_MSG_RESULT($enable_warnings)
1092 if test "$enable_warnings" = "yes"
1093 then
1094         ifelse($2,,[CF_GCC_ATTRIBUTES])
1095         CF_GCC_WARNINGS($1)
1096 fi
1097 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1098 fi
1099 ])dnl
1100 dnl ---------------------------------------------------------------------------
1101 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1102 dnl ---------------
1103 dnl Look for a non-standard library, given parameters for AC_TRY_LINK.  We
1104 dnl prefer a standard location, and use -L options only if we do not find the
1105 dnl library in the standard library location(s).
1106 dnl     $1 = library name
1107 dnl     $2 = library class, usually the same as library name
1108 dnl     $3 = includes
1109 dnl     $4 = code fragment to compile/link
1110 dnl     $5 = corresponding function-name
1111 dnl     $6 = flag, nonnull if failure should not cause an error-exit
1112 dnl
1113 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1114 dnl to use a -L option.
1115 AC_DEFUN([CF_FIND_LIBRARY],
1116 [
1117         eval 'cf_cv_have_lib_'"$1"'=no'
1118         cf_libdir=""
1119         AC_CHECK_FUNC($5,
1120                 eval 'cf_cv_have_lib_'"$1"'=yes',[
1121                 cf_save_LIBS="$LIBS"
1122                 AC_MSG_CHECKING(for $5 in -l$1)
1123                 LIBS="-l$1 $LIBS"
1124                 AC_TRY_LINK([$3],[$4],
1125                         [AC_MSG_RESULT(yes)
1126                          eval 'cf_cv_have_lib_'"$1"'=yes'
1127                         ],
1128                         [AC_MSG_RESULT(no)
1129                         CF_LIBRARY_PATH(cf_search,$2)
1130                         for cf_libdir in $cf_search
1131                         do
1132                                 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1133                                 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1134                                 AC_TRY_LINK([$3],[$4],
1135                                         [AC_MSG_RESULT(yes)
1136                                          eval 'cf_cv_have_lib_'"$1"'=yes'
1137                                          break],
1138                                         [AC_MSG_RESULT(no)
1139                                          LIBS="$cf_save_LIBS"])
1140                         done
1141                         ])
1142                 ])
1143 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1144 ifelse($6,,[
1145 if test "$cf_found_library" = no ; then
1146         AC_MSG_ERROR(Cannot link $1 library)
1147 fi
1148 ])
1149 ])dnl
1150 dnl ---------------------------------------------------------------------------
1151 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1152 dnl ---------------
1153 dnl Find a library (specifically the linkage used in the code fragment),
1154 dnl searching for it if it is not already in the library path.
1155 dnl See also CF_ADD_SEARCHPATH.
1156 dnl
1157 dnl Parameters (4-on are optional):
1158 dnl     $1 = headers for library entrypoint
1159 dnl     $2 = code fragment for library entrypoint
1160 dnl     $3 = the library name without the "-l" option or ".so" suffix.
1161 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
1162 dnl     $5 = action to perform if not successful
1163 dnl     $6 = module name, if not the same as the library name
1164 dnl     $7 = extra libraries
1165 dnl
1166 dnl Sets these variables:
1167 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1168 dnl     $cf_cv_header_path_$3 - include-directory if needed
1169 dnl     $cf_cv_library_path_$3 - library-directory if needed
1170 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1171 AC_DEFUN([CF_FIND_LINKAGE],[
1172
1173 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1174 # will be set on completion of the AC_TRY_LINK below.
1175 cf_cv_header_path_$3=
1176 cf_cv_library_path_$3=
1177
1178 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1179
1180 cf_save_LIBS="$LIBS"
1181
1182 AC_TRY_LINK([$1],[$2],[
1183         cf_cv_find_linkage_$3=yes
1184         cf_cv_header_path_$3=/usr/include
1185         cf_cv_library_path_$3=/usr/lib
1186 ],[
1187
1188 LIBS="-l$3 $7 $cf_save_LIBS"
1189
1190 AC_TRY_LINK([$1],[$2],[
1191         cf_cv_find_linkage_$3=yes
1192         cf_cv_header_path_$3=/usr/include
1193         cf_cv_library_path_$3=/usr/lib
1194         cf_cv_library_file_$3="-l$3"
1195 ],[
1196         cf_cv_find_linkage_$3=no
1197         LIBS="$cf_save_LIBS"
1198
1199         CF_VERBOSE(find linkage for $3 library)
1200         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1201
1202         cf_save_CPPFLAGS="$CPPFLAGS"
1203         cf_test_CPPFLAGS="$CPPFLAGS"
1204
1205         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1206         for cf_cv_header_path_$3 in $cf_search
1207         do
1208                 if test -d "$cf_cv_header_path_$3" ; then
1209                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
1210                         CPPFLAGS="$cf_save_CPPFLAGS"
1211                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1212                         AC_TRY_COMPILE([$1],[$2],[
1213                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1214                                 cf_cv_find_linkage_$3=maybe
1215                                 cf_test_CPPFLAGS="$CPPFLAGS"
1216                                 break],[
1217                                 CPPFLAGS="$cf_save_CPPFLAGS"
1218                                 ])
1219                 fi
1220         done
1221
1222         if test "$cf_cv_find_linkage_$3" = maybe ; then
1223
1224                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1225
1226                 cf_save_LIBS="$LIBS"
1227                 cf_save_LDFLAGS="$LDFLAGS"
1228
1229                 ifelse([$6],,,[
1230                 CPPFLAGS="$cf_test_CPPFLAGS"
1231                 LIBS="-l$3 $7 $cf_save_LIBS"
1232                 AC_TRY_LINK([$1],[$2],[
1233                         CF_VERBOSE(... found $3 library in system)
1234                         cf_cv_find_linkage_$3=yes])
1235                         CPPFLAGS="$cf_save_CPPFLAGS"
1236                         LIBS="$cf_save_LIBS"
1237                         ])
1238
1239                 if test "$cf_cv_find_linkage_$3" != yes ; then
1240                         CF_LIBRARY_PATH(cf_search,$3)
1241                         for cf_cv_library_path_$3 in $cf_search
1242                         do
1243                                 if test -d "$cf_cv_library_path_$3" ; then
1244                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
1245                                         CPPFLAGS="$cf_test_CPPFLAGS"
1246                                         LIBS="-l$3 $7 $cf_save_LIBS"
1247                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1248                                         AC_TRY_LINK([$1],[$2],[
1249                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1250                                         cf_cv_find_linkage_$3=yes
1251                                         cf_cv_library_file_$3="-l$3"
1252                                         break],[
1253                                         CPPFLAGS="$cf_save_CPPFLAGS"
1254                                         LIBS="$cf_save_LIBS"
1255                                         LDFLAGS="$cf_save_LDFLAGS"
1256                                         ])
1257                                 fi
1258                         done
1259                         CPPFLAGS="$cf_save_CPPFLAGS"
1260                         LDFLAGS="$cf_save_LDFLAGS"
1261                 fi
1262
1263         else
1264                 cf_cv_find_linkage_$3=no
1265         fi
1266         ],$7)
1267 ])
1268
1269 LIBS="$cf_save_LIBS"
1270
1271 if test "$cf_cv_find_linkage_$3" = yes ; then
1272 ifelse([$4],,[
1273         CF_ADD_INCDIR($cf_cv_header_path_$3)
1274         CF_ADD_LIBDIR($cf_cv_library_path_$3)
1275         CF_ADD_LIB($3)
1276 ],[$4])
1277 else
1278 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1279 fi
1280 ])dnl
1281 dnl ---------------------------------------------------------------------------
1282 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1283 dnl -----------------
1284 dnl make ADAFLAGS consistent with CFLAGS
1285 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1286         AC_MSG_CHECKING(optimization options for ADAFLAGS)
1287         case "$CFLAGS" in
1288         (*-g*)
1289                 CF_ADD_ADAFLAGS(-g)
1290                 ;;
1291         esac
1292         case "$CFLAGS" in
1293         (*-O*)
1294                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
1295                 CF_ADD_ADAFLAGS($cf_O_flag)
1296                 ;;
1297         esac
1298         AC_MSG_RESULT($ADAFLAGS)
1299 ])dnl
1300 dnl ---------------------------------------------------------------------------
1301 dnl CF_FIX_WARNINGS version: 3 updated: 2020/12/31 18:40:20
1302 dnl ---------------
1303 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc.  Any of gcc's
1304 dnl "-Werror" flags can interfere with configure-checks.  Those go into
1305 dnl EXTRA_CFLAGS.
1306 dnl
1307 dnl $1 = variable name to repair
1308 define([CF_FIX_WARNINGS],[
1309 if test "$GCC" = yes || test "$GXX" = yes
1310 then
1311         case [$]$1 in
1312         (*-Werror=*)
1313                 CF_VERBOSE(repairing $1: [$]$1)
1314                 cf_temp_flags=
1315                 for cf_temp_scan in [$]$1
1316                 do
1317                         case "x$cf_temp_scan" in
1318                         (x-Werror=*)
1319                                 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1320                                 ;;
1321                         (*)
1322                                 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1323                                 ;;
1324                         esac
1325                 done
1326                 $1="$cf_temp_flags"
1327                 CF_VERBOSE(... fixed [$]$1)
1328                 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1329                 ;;
1330         esac
1331 fi
1332 AC_SUBST(EXTRA_CFLAGS)
1333 ])dnl
1334 dnl ---------------------------------------------------------------------------
1335 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1336 dnl -----------------
1337 dnl Test for availability of useful gcc __attribute__ directives to quiet
1338 dnl compiler warnings.  Though useful, not all are supported -- and contrary
1339 dnl to documentation, unrecognized directives cause older compilers to barf.
1340 AC_DEFUN([CF_GCC_ATTRIBUTES],
1341 [AC_REQUIRE([AC_PROG_FGREP])dnl
1342 AC_REQUIRE([CF_C11_NORETURN])dnl
1343
1344 if test "$GCC" = yes || test "$GXX" = yes
1345 then
1346 cat > conftest.i <<EOF
1347 #ifndef GCC_PRINTF
1348 #define GCC_PRINTF 0
1349 #endif
1350 #ifndef GCC_SCANF
1351 #define GCC_SCANF 0
1352 #endif
1353 #ifndef GCC_NORETURN
1354 #define GCC_NORETURN /* nothing */
1355 #endif
1356 #ifndef GCC_UNUSED
1357 #define GCC_UNUSED /* nothing */
1358 #endif
1359 EOF
1360 if test "$GCC" = yes
1361 then
1362         AC_CHECKING([for $CC __attribute__ directives])
1363 cat > "conftest.$ac_ext" <<EOF
1364 #line __oline__ "${as_me:-configure}"
1365 #include "confdefs.h"
1366 #include "conftest.h"
1367 #include "conftest.i"
1368 #if     GCC_PRINTF
1369 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1370 #else
1371 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1372 #endif
1373 #if     GCC_SCANF
1374 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
1375 #else
1376 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
1377 #endif
1378 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1379 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1380 extern GCC_NORETURN void foo(void);
1381 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1382 EOF
1383         cf_printf_attribute=no
1384         cf_scanf_attribute=no
1385         for cf_attribute in scanf printf unused noreturn
1386         do
1387                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1388                 cf_directive="__attribute__(($cf_attribute))"
1389                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1390
1391                 case "$cf_attribute" in
1392                 (printf)
1393                         cf_printf_attribute=yes
1394                         cat >conftest.h <<EOF
1395 #define GCC_$cf_ATTRIBUTE 1
1396 EOF
1397                         ;;
1398                 (scanf)
1399                         cf_scanf_attribute=yes
1400                         cat >conftest.h <<EOF
1401 #define GCC_$cf_ATTRIBUTE 1
1402 EOF
1403                         ;;
1404                 (*)
1405                         cat >conftest.h <<EOF
1406 #define GCC_$cf_ATTRIBUTE $cf_directive
1407 EOF
1408                         ;;
1409                 esac
1410
1411                 if AC_TRY_EVAL(ac_compile); then
1412                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1413                         cat conftest.h >>confdefs.h
1414                         case "$cf_attribute" in
1415                         (noreturn)
1416                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1417                                 ;;
1418                         (printf)
1419                                 cf_value='/* nothing */'
1420                                 if test "$cf_printf_attribute" != no ; then
1421                                         cf_value='__attribute__((format(printf,fmt,var)))'
1422                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1423                                 fi
1424                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1425                                 ;;
1426                         (scanf)
1427                                 cf_value='/* nothing */'
1428                                 if test "$cf_scanf_attribute" != no ; then
1429                                         cf_value='__attribute__((format(scanf,fmt,var)))'
1430                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1431                                 fi
1432                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1433                                 ;;
1434                         (unused)
1435                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1436                                 ;;
1437                         esac
1438                 fi
1439         done
1440 else
1441         ${FGREP-fgrep} define conftest.i >>confdefs.h
1442 fi
1443 rm -rf ./conftest*
1444 fi
1445 ])dnl
1446 dnl ---------------------------------------------------------------------------
1447 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1448 dnl --------------
1449 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1450 dnl compatible), attempt to determine if icc/clang is actually used.
1451 AC_DEFUN([CF_GCC_VERSION],[
1452 AC_REQUIRE([AC_PROG_CC])
1453 GCC_VERSION=none
1454 if test "$GCC" = yes ; then
1455         AC_MSG_CHECKING(version of $CC)
1456         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1457         test -z "$GCC_VERSION" && GCC_VERSION=unknown
1458         AC_MSG_RESULT($GCC_VERSION)
1459 fi
1460 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1461 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1462 ])dnl
1463 dnl ---------------------------------------------------------------------------
1464 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1465 dnl ---------------
1466 dnl Check if the compiler supports useful warning options.  There's a few that
1467 dnl we don't use, simply because they're too noisy:
1468 dnl
1469 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1470 dnl     -Winline (usually not worthwhile)
1471 dnl     -Wredundant-decls (system headers make this too noisy)
1472 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
1473 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
1474 dnl             is enabled for ncurses using "--enable-const".
1475 dnl     -pedantic
1476 dnl
1477 dnl Parameter:
1478 dnl     $1 is an optional list of gcc warning flags that a particular
1479 dnl             application might want to use, e.g., "no-unused" for
1480 dnl             -Wno-unused
1481 dnl Special:
1482 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
1483 dnl
1484 AC_DEFUN([CF_GCC_WARNINGS],
1485 [
1486 AC_REQUIRE([CF_GCC_VERSION])
1487 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1488 cat > "conftest.$ac_ext" <<EOF
1489 #line __oline__ "${as_me:-configure}"
1490 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1491 EOF
1492 if test "$INTEL_COMPILER" = yes
1493 then
1494 # The "-wdXXX" options suppress warnings:
1495 # remark #1419: external declaration in primary source file
1496 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1497 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1498 # remark #193: zero used for undefined preprocessing identifier
1499 # remark #593: variable "curs_sb_left_arrow" was set but never used
1500 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1501 # remark #869: parameter "tw" was never referenced
1502 # remark #981: operands are evaluated in unspecified order
1503 # warning #279: controlling expression is constant
1504
1505         AC_CHECKING([for $CC warning options])
1506         cf_save_CFLAGS="$CFLAGS"
1507         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1508         for cf_opt in \
1509                 wd1419 \
1510                 wd1683 \
1511                 wd1684 \
1512                 wd193 \
1513                 wd593 \
1514                 wd279 \
1515                 wd810 \
1516                 wd869 \
1517                 wd981
1518         do
1519                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1520                 if AC_TRY_EVAL(ac_compile); then
1521                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1522                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1523                 fi
1524         done
1525         CFLAGS="$cf_save_CFLAGS"
1526 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1527 then
1528         AC_CHECKING([for $CC warning options])
1529         cf_save_CFLAGS="$CFLAGS"
1530         cf_warn_CONST=""
1531         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1532         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1533         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1534         for cf_opt in W Wall \
1535                 Wbad-function-cast \
1536                 Wcast-align \
1537                 Wcast-qual \
1538                 Wdeclaration-after-statement \
1539                 Wextra \
1540                 Winline \
1541                 Wmissing-declarations \
1542                 Wmissing-prototypes \
1543                 Wnested-externs \
1544                 Wpointer-arith \
1545                 Wshadow \
1546                 Wstrict-prototypes \
1547                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1548         do
1549                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1550                 if AC_TRY_EVAL(ac_compile); then
1551                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1552                         case "$cf_opt" in
1553                         (Winline)
1554                                 case "$GCC_VERSION" in
1555                                 ([[34]].*)
1556                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1557                                         continue;;
1558                                 esac
1559                                 ;;
1560                         (Wpointer-arith)
1561                                 case "$GCC_VERSION" in
1562                                 ([[12]].*)
1563                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1564                                         continue;;
1565                                 esac
1566                                 ;;
1567                         esac
1568                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1569                 fi
1570         done
1571         CFLAGS="$cf_save_CFLAGS"
1572 fi
1573 rm -rf ./conftest*
1574
1575 AC_SUBST(EXTRA_CFLAGS)
1576 ])dnl
1577 dnl ---------------------------------------------------------------------------
1578 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1579 dnl -----------------
1580 AC_DEFUN([CF_GNATPREP_OPT_T],[
1581 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1582 cf_cv_gnatprep_opt_t=no
1583 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1584 ])
1585 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1586 AC_SUBST(GNATPREP_OPTS)
1587 ])dnl
1588 dnl ---------------------------------------------------------------------------
1589 dnl CF_GNAT_GENERICS version: 7 updated: 2021/01/01 13:31:04
1590 dnl ----------------
1591 AC_DEFUN([CF_GNAT_GENERICS],
1592 [
1593 AC_REQUIRE([CF_GNAT_VERSION])
1594
1595 AC_MSG_CHECKING(if GNAT supports generics)
1596 case "$cf_cv_gnat_version" in
1597 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1598         cf_gnat_generics=yes
1599         ;;
1600 (*)
1601         cf_gnat_generics=no
1602         ;;
1603 esac
1604 AC_MSG_RESULT($cf_gnat_generics)
1605
1606 if test "$cf_gnat_generics" = yes
1607 then
1608         cf_compile_generics=generics
1609         cf_generic_objects="\${GENOBJS}"
1610 else
1611         cf_compile_generics=
1612         cf_generic_objects=
1613 fi
1614
1615 AC_SUBST(cf_compile_generics)
1616 AC_SUBST(cf_generic_objects)
1617 ])dnl
1618 dnl ---------------------------------------------------------------------------
1619 dnl CF_GNAT_PROJECTS version: 13 updated: 2021/01/02 17:09:14
1620 dnl ----------------
1621 dnl GNAT projects are configured with ".gpr" project files.
1622 dnl GNAT libraries are a further development, using the project feature.
1623 AC_DEFUN([CF_GNAT_PROJECTS],
1624 [
1625 AC_REQUIRE([CF_GNAT_VERSION])
1626 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1627
1628 cf_gnat_libraries=no
1629 cf_gnat_projects=no
1630
1631 if test "$enable_gnat_projects" != no ; then
1632 AC_MSG_CHECKING(if GNAT supports project files)
1633 case "$cf_cv_gnat_version" in
1634 (3.[[0-9]]*)
1635         ;;
1636 (*)
1637         case "$cf_cv_system_name" in
1638         (cygwin*|msys*)
1639                 ;;
1640         (*)
1641                 rm -rf ./conftest* ./*~conftest*
1642                 if mkdir conftest.src conftest.bin conftest.lib
1643                 then
1644                         cd conftest.src
1645                         rm -rf ./conftest* ./*~conftest*
1646                         cat >>library.gpr <<CF_EOF
1647 project Library is
1648   Kind := External ("LIB_KIND");
1649   for Library_Name use "ConfTest";
1650   for Object_Dir use ".";
1651   for Library_ALI_Dir use External("LIBRARY_DIR");
1652   for Library_Version use External ("SONAME");
1653   for Library_Kind use Kind;
1654   for Library_Dir use External("BUILD_DIR");
1655   Source_Dir := External ("SOURCE_DIR");
1656   for Source_Dirs use (Source_Dir);
1657 end Library;
1658 CF_EOF
1659                         cat >>confpackage.ads <<CF_EOF
1660 package ConfPackage is
1661    procedure conftest;
1662 end ConfPackage;
1663 CF_EOF
1664                         cat >>confpackage.adb <<CF_EOF
1665 with Text_IO;
1666 package body ConfPackage is
1667    procedure conftest is
1668    begin
1669       Text_IO.Put ("Hello World");
1670       Text_IO.New_Line;
1671    end conftest;
1672 end ConfPackage;
1673 CF_EOF
1674                         if ( "$cf_ada_make" $ADAFLAGS \
1675                                         -Plibrary.gpr \
1676                                         -XBUILD_DIR="`cd ../conftest.bin;pwd`" \
1677                                         -XLIBRARY_DIR="`cd ../conftest.lib;pwd`" \
1678                                         -XSOURCE_DIR="`pwd`" \
1679                                         -XSONAME=libConfTest.so.1 \
1680                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1681                                 cf_gnat_projects=yes
1682                         fi
1683                         cd ..
1684                 fi
1685                 if test -f conftest.lib/confpackage.ali
1686                 then
1687                         cf_gnat_libraries=yes
1688                 fi
1689                 rm -rf ./conftest* ./*~conftest*
1690                 ;;
1691         esac
1692         ;;
1693 esac
1694 AC_MSG_RESULT($cf_gnat_projects)
1695 fi # enable_gnat_projects
1696
1697 if test "$cf_gnat_projects" = yes
1698 then
1699         AC_MSG_CHECKING(if GNAT supports libraries)
1700         AC_MSG_RESULT($cf_gnat_libraries)
1701 fi
1702
1703 USE_OLD_MAKERULES=""
1704 USE_GNAT_PROJECTS="#"
1705 USE_GNAT_MAKE_GPR="#"
1706 USE_GNAT_GPRBUILD="#"
1707
1708 if test "$cf_gnat_projects" = yes
1709 then
1710         USE_OLD_MAKERULES="#"
1711         USE_GNAT_PROJECTS=""
1712         if test "$cf_cv_VERSION_GPRBUILD" != no
1713         then
1714                 USE_GNAT_GPRBUILD=""
1715         elif test "$cf_cv_VERSION_GNATMAKE" != no
1716         then
1717                 USE_GNAT_MAKE_GPR=""
1718         else
1719                 AC_MSG_WARN(use old makefile rules since tools are missing)
1720         fi
1721 fi
1722
1723 if test "$cf_gnat_libraries" = yes
1724 then
1725         USE_GNAT_LIBRARIES=""
1726 else
1727         USE_GNAT_LIBRARIES="#"
1728 fi
1729
1730 AC_SUBST(USE_OLD_MAKERULES)
1731 AC_SUBST(USE_GNAT_PROJECTS)
1732 AC_SUBST(USE_GNAT_LIBRARIES)
1733 AC_SUBST(USE_GNAT_MAKE_GPR)
1734 AC_SUBST(USE_GNAT_GPRBUILD)
1735 ])dnl
1736 dnl ---------------------------------------------------------------------------
1737 dnl CF_GNAT_SIGINT version: 2 updated: 2021/01/01 13:31:04
1738 dnl --------------
1739 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
1740 dnl is noted that gnat may compile a tasking unit even for configurations which
1741 dnl fail at runtime.
1742 AC_DEFUN([CF_GNAT_SIGINT],[
1743 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1744 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1745
1746 package ConfTest is
1747
1748    pragma Warnings (Off);  --  the next pragma exists since 3.11p
1749    pragma Unreserve_All_Interrupts;
1750    pragma Warnings (On);
1751
1752    protected Process is
1753       procedure Stop;
1754       function Continue return Boolean;
1755       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1756    private
1757       Done : Boolean := False;
1758    end Process;
1759
1760 end ConfTest;],
1761 [package body ConfTest is
1762    protected body Process is
1763       procedure Stop is
1764       begin
1765          Done := True;
1766       end Stop;
1767       function Continue return Boolean is
1768       begin
1769          return not Done;
1770       end Continue;
1771    end Process;
1772 end ConfTest;],
1773         [cf_cv_gnat_sigint=yes],
1774         [cf_cv_gnat_sigint=no])])
1775
1776 if test "$cf_cv_gnat_sigint" = yes ; then
1777         USE_GNAT_SIGINT=""
1778 else
1779         USE_GNAT_SIGINT="#"
1780 fi
1781 AC_SUBST(USE_GNAT_SIGINT)
1782 ])dnl
1783 dnl ---------------------------------------------------------------------------
1784 dnl CF_GNAT_TRY_LINK version: 4 updated: 2021/01/01 13:31:04
1785 dnl ----------------
1786 dnl Verify that a test program compiles/links with GNAT.
1787 dnl $cf_ada_make is set to the program that compiles/links
1788 dnl $ADAFLAGS may be set to the GNAT flags.
1789 dnl
1790 dnl $1 is the text of the spec
1791 dnl $2 is the text of the body
1792 dnl $3 is the shell command to execute if successful
1793 dnl $4 is the shell command to execute if not successful
1794 AC_DEFUN([CF_GNAT_TRY_LINK],
1795 [
1796 rm -rf ./conftest* ./*~conftest*
1797 cat >>conftest.ads <<CF_EOF
1798 $1
1799 CF_EOF
1800 cat >>conftest.adb <<CF_EOF
1801 $2
1802 CF_EOF
1803 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1804 ifelse($3,,      :,[      $3])
1805 ifelse($4,,,[else
1806    $4])
1807 fi
1808 rm -rf ./conftest* ./*~conftest*
1809 ])dnl
1810 dnl ---------------------------------------------------------------------------
1811 dnl CF_GNAT_TRY_RUN version: 6 updated: 2021/01/01 13:31:04
1812 dnl ---------------
1813 dnl Verify that a test program compiles and runs with GNAT
1814 dnl $cf_ada_make is set to the program that compiles/links
1815 dnl $ADAFLAGS may be set to the GNAT flags.
1816 dnl
1817 dnl $1 is the text of the spec
1818 dnl $2 is the text of the body
1819 dnl $3 is the shell command to execute if successful
1820 dnl $4 is the shell command to execute if not successful
1821 AC_DEFUN([CF_GNAT_TRY_RUN],
1822 [
1823 rm -rf ./conftest* ./*~conftest*
1824 cat >>conftest.ads <<CF_EOF
1825 $1
1826 CF_EOF
1827 cat >>conftest.adb <<CF_EOF
1828 $2
1829 CF_EOF
1830 if ( "$cf_ada_make" $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1831    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1832 ifelse($3,,      :,[      $3])
1833 ifelse($4,,,[   else
1834       $4])
1835    fi
1836 ifelse($4,,,[else
1837    $4])
1838 fi
1839 rm -rf ./conftest* ./*~conftest*
1840 ])dnl
1841 dnl ---------------------------------------------------------------------------
1842 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
1843 dnl ---------------
1844 dnl $1 = cache variable to update
1845 dnl $2 = program name
1846 dnl Verify version of GNAT or related tool
1847 AC_DEFUN([CF_GNAT_VERSION],
1848 [
1849 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
1850 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
1851         grep '[[0-9]].[[0-9]][[0-9]]*' |\
1852         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1853 ])
1854 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
1855 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
1856 ])dnl
1857 dnl ---------------------------------------------------------------------------
1858 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1859 dnl -------------
1860 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1861 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
1862 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1863 dnl since it is interwoven with GNU extensions.
1864 dnl
1865 dnl Well, yes we could work around it...
1866 dnl
1867 dnl Parameters:
1868 dnl     $1 is the nominal value for _XOPEN_SOURCE
1869 AC_DEFUN([CF_GNU_SOURCE],
1870 [
1871 cf_gnu_xopen_source=ifelse($1,,500,$1)
1872
1873 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1874 AC_TRY_COMPILE([#include <sys/types.h>],[
1875         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1876                 return 0;
1877         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1878                 return 0;
1879         #else
1880         #       error not GNU C library
1881         #endif],
1882         [cf_cv_gnu_library=yes],
1883         [cf_cv_gnu_library=no])
1884 ])
1885
1886 if test x$cf_cv_gnu_library = xyes; then
1887
1888         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1889         # was changed to help a little.  newlib incorporated the change about 4
1890         # years later.
1891         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1892                 cf_save="$CPPFLAGS"
1893                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1894                 AC_TRY_COMPILE([#include <sys/types.h>],[
1895                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1896                                 return 0;
1897                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1898                                 return 0;
1899                         #else
1900                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1901                         #endif],
1902                         [cf_cv_gnu_library_219=yes],
1903                         [cf_cv_gnu_library_219=no])
1904                 CPPFLAGS="$cf_save"
1905         ])
1906
1907         if test "x$cf_cv_gnu_library_219" = xyes; then
1908                 cf_save="$CPPFLAGS"
1909                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1910                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
1911                         AC_TRY_COMPILE([
1912                                 #include <limits.h>
1913                                 #include <sys/types.h>
1914                                 ],[
1915                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
1916                                         return 0;
1917                                 #else
1918                                 #       error GNU C library is too old
1919                                 #endif],
1920                                 [cf_cv_gnu_dftsrc_219=yes],
1921                                 [cf_cv_gnu_dftsrc_219=no])
1922                         ])
1923                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
1924         else
1925                 cf_cv_gnu_dftsrc_219=maybe
1926         fi
1927
1928         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
1929
1930                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1931                 AC_TRY_COMPILE([#include <sys/types.h>],[
1932                         #ifndef _XOPEN_SOURCE
1933                         #error  expected _XOPEN_SOURCE to be defined
1934                         #endif],
1935                         [cf_cv_gnu_source=no],
1936                         [cf_save="$CPPFLAGS"
1937                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
1938                          AC_TRY_COMPILE([#include <sys/types.h>],[
1939                                 #ifdef _XOPEN_SOURCE
1940                                 #error  expected _XOPEN_SOURCE to be undefined
1941                                 #endif],
1942                                 [cf_cv_gnu_source=no],
1943                                 [cf_cv_gnu_source=yes])
1944                         CPPFLAGS="$cf_save"
1945                         ])
1946                 ])
1947
1948                 if test "$cf_cv_gnu_source" = yes
1949                 then
1950                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
1951                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
1952                         AC_TRY_COMPILE([#include <sys/types.h>],[
1953                                 #ifdef _DEFAULT_SOURCE
1954                                 #error  expected _DEFAULT_SOURCE to be undefined
1955                                 #endif],
1956                                 [cf_cv_default_source=no],
1957                                 [cf_cv_default_source=yes])
1958                         ])
1959                         if test "$cf_cv_default_source" = yes
1960                         then
1961                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1962                         fi
1963                 fi
1964         fi
1965
1966 fi
1967 ])dnl
1968 dnl ---------------------------------------------------------------------------
1969 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
1970 dnl --------------
1971 dnl Construct a search-list of directories for a nonstandard header-file
1972 dnl
1973 dnl Parameters
1974 dnl     $1 = the variable to return as result
1975 dnl     $2 = the package name
1976 AC_DEFUN([CF_HEADER_PATH],
1977 [
1978 $1=
1979
1980 # collect the current set of include-directories from compiler flags
1981 cf_header_path_list=""
1982 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1983         for cf_header_path in $CPPFLAGS $CFLAGS
1984         do
1985                 case "$cf_header_path" in
1986                 (-I*)
1987                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1988                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1989                         cf_header_path_list="$cf_header_path_list [$]$1"
1990                         ;;
1991                 esac
1992         done
1993 fi
1994
1995 # add the variations for the package we are looking for
1996 CF_SUBDIR_PATH($1,$2,include)
1997
1998 test "$includedir" != NONE && \
1999 test "$includedir" != "/usr/include" && \
2000 test -d "$includedir" && {
2001         test -d "$includedir" &&    $1="[$]$1 $includedir"
2002         test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2003 }
2004
2005 test "$oldincludedir" != NONE && \
2006 test "$oldincludedir" != "/usr/include" && \
2007 test -d "$oldincludedir" && {
2008         test -d "$oldincludedir"    && $1="[$]$1 $oldincludedir"
2009         test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2010 }
2011
2012 $1="[$]$1 $cf_header_path_list"
2013 ])dnl
2014 dnl ---------------------------------------------------------------------------
2015 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2016 dnl ---------------
2017 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2018 AC_DEFUN([CF_HELP_MESSAGE],
2019 [CF_ACVERSION_CHECK(2.53,[],[
2020 AC_DIVERT_HELP($1)])dnl
2021 ])dnl
2022 dnl ---------------------------------------------------------------------------
2023 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
2024 dnl ---------------
2025 dnl Construct the list of include-options according to whether we're building
2026 dnl in the source directory or using '--srcdir=DIR' option.
2027 AC_DEFUN([CF_INCLUDE_DIRS],
2028 [
2029 if test "$srcdir" != "."; then
2030         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
2031 fi
2032 CPPFLAGS="-I../include $CPPFLAGS"
2033 if test "$srcdir" != "."; then
2034         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
2035 fi
2036 CPPFLAGS="-I. $CPPFLAGS"
2037 AC_SUBST(CPPFLAGS)
2038 ])dnl
2039 dnl ---------------------------------------------------------------------------
2040 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2041 dnl ---------------
2042 dnl prompt for/fill-in useful install-program options
2043 AC_DEFUN([CF_INSTALL_OPTS],
2044 [
2045 CF_INSTALL_OPT_S
2046 CF_INSTALL_OPT_P
2047 CF_INSTALL_OPT_O
2048 ])dnl
2049 dnl ---------------------------------------------------------------------------
2050 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2051 dnl ----------------
2052 dnl Almost all "install" programs default to the current user's ownership.
2053 dnl Almost - MINIX is an exception.
2054 AC_DEFUN([CF_INSTALL_OPT_O],
2055 [
2056 AC_MSG_CHECKING(if install needs to be told about ownership)
2057 case `$ac_config_guess` in
2058 (*minix)
2059         with_install_o=yes
2060         ;;
2061 (*)
2062         with_install_o=no
2063         ;;
2064 esac
2065
2066 AC_MSG_RESULT($with_install_o)
2067 if test "x$with_install_o" = xyes
2068 then
2069         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'`"
2070 else
2071         INSTALL_OPT_O=
2072 fi
2073
2074 AC_SUBST(INSTALL_OPT_O)
2075 ])dnl
2076 dnl ---------------------------------------------------------------------------
2077 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2078 dnl ----------------
2079 dnl Some install-programs accept a "-p" option to preserve file modification
2080 dnl timestamps.  That can be useful as an install option, as well as a way to
2081 dnl avoid the need for ranlib after copying a static archive.
2082 AC_DEFUN([CF_INSTALL_OPT_P],
2083 [
2084 : "${INSTALL:=install}"
2085 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2086         rm -rf ./conftest*
2087         date >conftest.in
2088         mkdir conftest.out
2089         sleep 3
2090         if $INSTALL -p conftest.in conftest.out 2>/dev/null
2091         then
2092                 if test -f conftest.out/conftest.in
2093                 then
2094                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2095                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2096                         if test -s conftest.err
2097                         then
2098                                 cf_cv_install_p=no
2099                         else
2100                                 cf_cv_install_p=yes
2101                         fi
2102                 else
2103                         cf_cv_install_p=no
2104                 fi
2105         else
2106                 cf_cv_install_p=no
2107         fi
2108         rm -rf ./conftest*
2109 ])
2110 ])dnl
2111 dnl ---------------------------------------------------------------------------
2112 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2113 dnl ----------------
2114 dnl By default, we should strip executables which are installed, but leave the
2115 dnl ability to suppress that for unit-testing.
2116 AC_DEFUN([CF_INSTALL_OPT_S],
2117 [
2118 AC_MSG_CHECKING(if you want to install stripped executables)
2119 CF_ARG_DISABLE(stripping,
2120         [  --disable-stripping     do not strip (debug info) installed executables],
2121         [enable_stripping=no],
2122         [enable_stripping=yes])
2123 AC_MSG_RESULT($enable_stripping)
2124
2125 if test "$enable_stripping" = yes
2126 then
2127         INSTALL_OPT_S="-s"
2128 else
2129         INSTALL_OPT_S=
2130 fi
2131 AC_SUBST(INSTALL_OPT_S)
2132 ])dnl
2133 dnl ---------------------------------------------------------------------------
2134 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2135 dnl -----------------
2136 dnl Check if the given compiler is really the Intel compiler for Linux.  It
2137 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2138 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2139 dnl
2140 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2141 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
2142 dnl the wrappers for gcc and g++ warnings.
2143 dnl
2144 dnl $1 = GCC (default) or GXX
2145 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2146 dnl $3 = CFLAGS (default) or CXXFLAGS
2147 AC_DEFUN([CF_INTEL_COMPILER],[
2148 AC_REQUIRE([AC_CANONICAL_HOST])
2149 ifelse([$2],,INTEL_COMPILER,[$2])=no
2150
2151 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2152         case "$host_os" in
2153         (linux*|gnu*)
2154                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2155                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2156                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2157                 AC_TRY_COMPILE([],[
2158 #ifdef __INTEL_COMPILER
2159 #else
2160 make an error
2161 #endif
2162 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2163 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2164 ],[])
2165                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2166                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2167                 ;;
2168         esac
2169 fi
2170 ])dnl
2171 dnl ---------------------------------------------------------------------------
2172 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
2173 dnl ------------
2174 dnl Add checks for large file support.
2175 AC_DEFUN([CF_LARGEFILE],[
2176 ifdef([AC_FUNC_FSEEKO],[
2177         AC_SYS_LARGEFILE
2178         if test "$enable_largefile" != no ; then
2179         AC_FUNC_FSEEKO
2180
2181         # Normally we would collect these definitions in the config.h,
2182         # but (like _XOPEN_SOURCE), some environments rely on having these
2183         # defined before any of the system headers are included.  Another
2184         # case comes up with C++, e.g., on AIX the compiler compiles the
2185         # header files by themselves before looking at the body files it is
2186         # told to compile.  For ncurses, those header files do not include
2187         # the config.h
2188         if test "$ac_cv_sys_large_files" != no
2189         then
2190                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
2191         fi
2192         if test "$ac_cv_sys_largefile_source" != no
2193         then
2194                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
2195         fi
2196         if test "$ac_cv_sys_file_offset_bits" != no
2197         then
2198                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
2199         fi
2200
2201         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
2202                 AC_TRY_COMPILE([
2203 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
2204 #include <sys/types.h>
2205 #include <dirent.h>
2206                 ],[
2207                 /* if transitional largefile support is setup, this is true */
2208                 extern struct dirent64 * readdir(DIR *);
2209                 struct dirent64 *x = readdir((DIR *)0);
2210                 struct dirent *y = readdir((DIR *)0);
2211                 int z = x - y;
2212                 (void)z;
2213                 ],
2214                 [cf_cv_struct_dirent64=yes],
2215                 [cf_cv_struct_dirent64=no])
2216         ])
2217         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
2218         fi
2219 ])
2220 ])
2221 dnl ---------------------------------------------------------------------------
2222 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2223 dnl ---------------
2224 dnl For the given system and compiler, find the compiler flags to pass to the
2225 dnl loader to use the "rpath" feature.
2226 AC_DEFUN([CF_LD_RPATH_OPT],
2227 [
2228 AC_REQUIRE([CF_CHECK_CACHE])
2229
2230 LD_RPATH_OPT=
2231 if test "x$cf_cv_enable_rpath" != xno
2232 then
2233         AC_MSG_CHECKING(for an rpath option)
2234         case "$cf_cv_system_name" in
2235         (irix*)
2236                 if test "$GCC" = yes; then
2237                         LD_RPATH_OPT="-Wl,-rpath,"
2238                 else
2239                         LD_RPATH_OPT="-rpath "
2240                 fi
2241                 ;;
2242         (linux*|gnu*|k*bsd*-gnu|freebsd*)
2243                 LD_RPATH_OPT="-Wl,-rpath,"
2244                 ;;
2245         (openbsd[[2-9]].*|mirbsd*)
2246                 LD_RPATH_OPT="-Wl,-rpath,"
2247                 ;;
2248         (dragonfly*)
2249                 LD_RPATH_OPT="-rpath "
2250                 ;;
2251         (netbsd*)
2252                 LD_RPATH_OPT="-Wl,-rpath,"
2253                 ;;
2254         (osf*|mls+*)
2255                 LD_RPATH_OPT="-rpath "
2256                 ;;
2257         (solaris2*)
2258                 LD_RPATH_OPT="-R"
2259                 ;;
2260         (*)
2261                 ;;
2262         esac
2263         AC_MSG_RESULT($LD_RPATH_OPT)
2264
2265         case "x$LD_RPATH_OPT" in
2266         (x-R*)
2267                 AC_MSG_CHECKING(if we need a space after rpath option)
2268                 cf_save_LIBS="$LIBS"
2269                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2270                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2271                 LIBS="$cf_save_LIBS"
2272                 AC_MSG_RESULT($cf_rpath_space)
2273                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2274                 ;;
2275         esac
2276 fi
2277 ])dnl
2278 dnl ---------------------------------------------------------------------------
2279 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2280 dnl ---------------
2281 dnl Construct a search-list of directories for a nonstandard library-file
2282 dnl
2283 dnl Parameters
2284 dnl     $1 = the variable to return as result
2285 dnl     $2 = the package name
2286 AC_DEFUN([CF_LIBRARY_PATH],
2287 [
2288 $1=
2289 cf_library_path_list=""
2290 if test -n "${LDFLAGS}${LIBS}" ; then
2291         for cf_library_path in $LDFLAGS $LIBS
2292         do
2293                 case "$cf_library_path" in
2294                 (-L*)
2295                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2296                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2297                         cf_library_path_list="$cf_library_path_list [$]$1"
2298                         ;;
2299                 esac
2300         done
2301 fi
2302
2303 CF_SUBDIR_PATH($1,$2,lib)
2304
2305 $1="$cf_library_path_list [$]$1"
2306 ])dnl
2307 dnl ---------------------------------------------------------------------------
2308 dnl CF_LIB_PREFIX version: 14 updated: 2021/01/01 13:31:04
2309 dnl -------------
2310 dnl Compute the library-prefix for the given host system
2311 dnl $1 = variable to set
2312 define([CF_LIB_PREFIX],
2313 [
2314         case "$cf_cv_system_name" in
2315         (OS/2*|os2*)
2316                 if test "$DFT_LWR_MODEL" = libtool; then
2317                         LIB_PREFIX='lib'
2318                 else
2319                         LIB_PREFIX=''
2320                 fi
2321                 ;;
2322         (*-msvc*)
2323                 LIB_PREFIX=''
2324                 ;;
2325         (*)     LIB_PREFIX='lib'
2326                 ;;
2327         esac
2328 ifelse($1,,,[$1=$LIB_PREFIX])
2329         AC_SUBST(LIB_PREFIX)
2330 ])dnl
2331 dnl ---------------------------------------------------------------------------
2332 dnl CF_LIB_SUFFIX version: 28 updated: 2021/01/01 16:53:59
2333 dnl -------------
2334 dnl Compute the library file-suffix from the given model name
2335 dnl $1 = model name
2336 dnl $2 = variable to set (the nominal library suffix)
2337 dnl $3 = dependency variable to set (actual filename)
2338 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2339 AC_DEFUN([CF_LIB_SUFFIX],
2340 [
2341         case X$1 in
2342         (Xlibtool)
2343                 $2='.la'
2344                 $3=[$]$2
2345                 ;;
2346         (Xdebug)
2347                 case "$cf_cv_system_name" in
2348                 (*-msvc*)
2349                         $2='_g.lib'
2350                         ;;
2351                 (*)
2352                         $2='_g.a'
2353                         ;;
2354                 esac
2355                 $3=[$]$2
2356                 ;;
2357         (Xprofile)
2358                 case "$cf_cv_system_name" in
2359                 (*-msvc*)
2360                         $2='_p.lib'
2361                         ;;
2362                 (*)
2363                         $2='_p.a'
2364                         ;;
2365                 esac
2366                 $3=[$]$2
2367                 ;;
2368         (Xshared)
2369                 case "$cf_cv_system_name" in
2370                 (aix[[5-7]]*)
2371                         $2='.so'
2372                         $3=[$]$2
2373                         ;;
2374                 (*-msvc*)
2375                         $2='.dll'
2376                         $3='.dll.lib'
2377                         ;;
2378                 (cygwin*|msys*|mingw*)
2379                         $2='.dll'
2380                         $3='.dll.a'
2381                         ;;
2382                 (darwin*)
2383                         $2='.dylib'
2384                         $3=[$]$2
2385                         ;;
2386                 (hpux*)
2387                         case "$target" in
2388                         (ia64*)
2389                                 $2='.so'
2390                                 $3=[$]$2
2391                                 ;;
2392                         (*)
2393                                 $2='.sl'
2394                                 $3=[$]$2
2395                                 ;;
2396                         esac
2397                         ;;
2398                 (*)
2399                         $2='.so'
2400                         $3=[$]$2
2401                         ;;
2402                 esac
2403                 ;;
2404         (*)
2405                 case "$target" in
2406                 (*-msvc*)
2407                         $2='.lib'
2408                         ;;
2409                 (*)
2410                         $2='.a'
2411                         ;;
2412                 esac
2413                 $3=[$]$2
2414                 ;;
2415         esac
2416         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2417         then
2418                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2419                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2420         fi
2421 ])dnl
2422 dnl ---------------------------------------------------------------------------
2423 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2424 dnl -----------
2425 dnl Compute the string to append to -library from the given model name
2426 dnl $1 = model name
2427 dnl $2 = variable to set
2428 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2429 AC_DEFUN([CF_LIB_TYPE],
2430 [
2431         case $1 in
2432         (libtool) $2=''   ;;
2433         (normal)  $2=''   ;;
2434         (debug)   $2='_g' ;;
2435         (profile) $2='_p' ;;
2436         (shared)  $2=''   ;;
2437         esac
2438         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2439 ])dnl
2440 dnl ---------------------------------------------------------------------------
2441 dnl CF_LINK_DATAONLY version: 13 updated: 2020/02/08 15:59:30
2442 dnl ----------------
2443 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2444 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
2445 dnl have to provide wrappers for global tables to ensure they're linked
2446 dnl properly.
2447 AC_DEFUN([CF_LINK_DATAONLY],
2448 [
2449 AC_MSG_CHECKING([if data-only library module links])
2450 AC_CACHE_VAL(cf_cv_link_dataonly,[
2451         rm -f conftest.a
2452         cat >conftest.$ac_ext <<EOF
2453 #line __oline__ "configure"
2454 int     testdata[[3]] = { 123, 456, 789 };
2455 EOF
2456         if AC_TRY_EVAL(ac_compile) ; then
2457                 mv conftest.o data.o && \
2458                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2459         fi
2460         rm -f conftest.$ac_ext data.o
2461         cat >conftest.$ac_ext <<EOF
2462 #line __oline__ "configure"
2463 int     testfunc(void)
2464 {
2465 #if defined(NeXT)
2466         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
2467 #else
2468         extern int testdata[[3]];
2469         return testdata[[0]] == 123
2470            &&  testdata[[1]] == 456
2471            &&  testdata[[2]] == 789;
2472 #endif
2473 }
2474 EOF
2475         if AC_TRY_EVAL(ac_compile); then
2476                 mv conftest.o func.o && \
2477                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2478         fi
2479         rm -f conftest.$ac_ext func.o
2480         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2481         cf_saveLIBS="$LIBS"
2482         LIBS="conftest.a $LIBS"
2483         AC_TRY_RUN([
2484         int main(void)
2485         {
2486                 extern int testfunc();
2487                 ${cf_cv_main_return:-return} (!testfunc());
2488         }
2489         ],
2490         [cf_cv_link_dataonly=yes],
2491         [cf_cv_link_dataonly=no],
2492         [cf_cv_link_dataonly=unknown])
2493         LIBS="$cf_saveLIBS"
2494         ])
2495 AC_MSG_RESULT($cf_cv_link_dataonly)
2496
2497 if test "$cf_cv_link_dataonly" = no ; then
2498         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2499         BROKEN_LINKER=1
2500 fi
2501 AC_SUBST(BROKEN_LINKER)
2502
2503 ])dnl
2504 dnl ---------------------------------------------------------------------------
2505 dnl CF_MAKEFLAGS version: 21 updated: 2021/09/04 06:47:34
2506 dnl ------------
2507 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2508 dnl options to lower-levels.  It is very useful for "make -n" -- if we have it.
2509 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2510 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2511 AC_DEFUN([CF_MAKEFLAGS],
2512 [AC_REQUIRE([AC_PROG_FGREP])dnl
2513
2514 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2515         cf_cv_makeflags=''
2516         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2517         do
2518                 cat >cf_makeflags.tmp <<CF_EOF
2519 SHELL = $SHELL
2520 all :
2521         @ echo '.$cf_option'
2522 CF_EOF
2523                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | ${FGREP-fgrep} -v "ing directory" | sed -e 's,[[  ]]*$,,'`
2524                 case "$cf_result" in
2525                 (.*k|.*kw)
2526                         cf_result="`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`"
2527                         case "$cf_result" in
2528                         (.*CC=*)        cf_cv_makeflags=
2529                                 ;;
2530                         (*)     cf_cv_makeflags=$cf_option
2531                                 ;;
2532                         esac
2533                         break
2534                         ;;
2535                 (.-)
2536                         ;;
2537                 (*)
2538                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2539                         ;;
2540                 esac
2541         done
2542         rm -f cf_makeflags.tmp
2543 ])
2544
2545 AC_SUBST(cf_cv_makeflags)
2546 ])dnl
2547 dnl ---------------------------------------------------------------------------
2548 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2549 dnl -------------
2550 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2551 dnl acts as a placeholder.
2552 dnl
2553 dnl The ".PHONY" feature was proposed in 2011 here
2554 dnl     https://www.austingroupbugs.net/view.php?id=523
2555 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2556 dnl
2557 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2558 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2559 dnl
2560 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2561 dnl   date unspecified).
2562 dnl
2563 dnl + It was adopted in NetBSD make in June 1995.
2564 dnl
2565 dnl + The other BSD make programs are derived from the NetBSD make (and for
2566 dnl   that reason are not actually different "implementations").
2567 dnl
2568 dnl + Some features of NetBSD make were actually adapted from pmake, which
2569 dnl   began as a modified GNU make starting in 1993.
2570 dnl
2571 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2572 dnl   GNU make extension, but is less well known than the BSD make.
2573 AC_DEFUN([CF_MAKE_PHONY],[
2574 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2575         rm -rf conftest*
2576         (
2577                 mkdir conftest || exit 1
2578                 cd conftest
2579                 cat >makefile <<'CF_EOF'
2580 .PHONY: always
2581 DATA=0
2582 always: always.out
2583         @echo "** making [$]@ [$](DATA)"
2584 once: once.out
2585         @echo "** making [$]@ [$](DATA)"
2586 always.out:
2587         @echo "** making [$]@ [$](DATA)"
2588         echo [$](DATA) > [$]@
2589 once.out:
2590         @echo "** making [$]@ [$](DATA)"
2591         echo [$](DATA) > [$]@
2592 CF_EOF
2593                 for cf_data in 1 2 3
2594                 do
2595                         ${MAKE:-make} always DATA=$cf_data
2596                         ${MAKE:-make} once   DATA=$cf_data
2597                         ${MAKE:-make} -t always once
2598                         if test -f always ; then
2599                                 echo "no (case 1)" > ../conftest.tmp
2600                         elif test ! -f always.out ; then
2601                                 echo "no (case 2)" > ../conftest.tmp
2602                         elif test ! -f once.out ; then
2603                                 echo "no (case 3)" > ../conftest.tmp
2604                         elif ! cmp -s always.out once.out ; then
2605                                 echo "no (case 4)" > ../conftest.tmp
2606                                 diff always.out once.out
2607                         else
2608                                 cf_check="`cat always.out`"
2609                                 if test "x$cf_check" != "x$cf_data" ; then
2610                                         echo "no (case 5)" > ../conftest.tmp
2611                                 else
2612                                         echo yes > ../conftest.tmp
2613                                         rm -f ./*.out
2614                                         continue
2615                                 fi
2616                         fi
2617                         break
2618                 done
2619         ) >&AC_FD_CC 2>&1
2620         cf_cv_make_PHONY="`cat conftest.tmp`"
2621         rm -rf conftest*
2622 ])
2623 MAKE_NO_PHONY="#"
2624 MAKE_PHONY="#"
2625 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2626 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2627 AC_SUBST(MAKE_NO_PHONY)
2628 AC_SUBST(MAKE_PHONY)
2629 ])dnl
2630 dnl ---------------------------------------------------------------------------
2631 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2632 dnl ------------
2633 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
2634 dnl a monocase filesystem.
2635 AC_DEFUN([CF_MAKE_TAGS],[
2636 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2637
2638 AC_CHECK_PROGS(CTAGS, exctags ctags)
2639 AC_CHECK_PROGS(ETAGS, exetags etags)
2640
2641 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2642
2643 if test "$cf_cv_mixedcase" = yes ; then
2644         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2645 else
2646         MAKE_UPPER_TAGS=no
2647 fi
2648
2649 if test "$MAKE_UPPER_TAGS" = yes ; then
2650         MAKE_UPPER_TAGS=
2651 else
2652         MAKE_UPPER_TAGS="#"
2653 fi
2654
2655 if test "$MAKE_LOWER_TAGS" = yes ; then
2656         MAKE_LOWER_TAGS=
2657 else
2658         MAKE_LOWER_TAGS="#"
2659 fi
2660
2661 AC_SUBST(CTAGS)
2662 AC_SUBST(ETAGS)
2663
2664 AC_SUBST(MAKE_UPPER_TAGS)
2665 AC_SUBST(MAKE_LOWER_TAGS)
2666 ])dnl
2667 dnl ---------------------------------------------------------------------------
2668 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2669 dnl ----------------------
2670 dnl Check if the file-system supports mixed-case filenames.  If we're able to
2671 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2672 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2673 [
2674 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2675 if test "$cross_compiling" = yes ; then
2676         case "$target_alias" in
2677         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2678                 cf_cv_mixedcase=no
2679                 ;;
2680         (*)
2681                 cf_cv_mixedcase=yes
2682                 ;;
2683         esac
2684 else
2685         rm -f conftest CONFTEST
2686         echo test >conftest
2687         if test -f CONFTEST ; then
2688                 cf_cv_mixedcase=no
2689         else
2690                 cf_cv_mixedcase=yes
2691         fi
2692         rm -f conftest CONFTEST
2693 fi
2694 ])
2695 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2696 ])dnl
2697 dnl ---------------------------------------------------------------------------
2698 dnl CF_MKSTEMP version: 11 updated: 2021/01/01 13:31:04
2699 dnl ----------
2700 dnl Check for a working mkstemp.  This creates two files, checks that they are
2701 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2702 AC_DEFUN([CF_MKSTEMP],[
2703 AC_CHECK_HEADERS( \
2704 unistd.h \
2705 )
2706 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2707 rm -rf ./conftest*
2708 AC_TRY_RUN([
2709 #include <sys/types.h>
2710 #ifdef HAVE_UNISTD_H
2711 #include <unistd.h>
2712 #endif
2713 #include <stdlib.h>
2714 #include <stdio.h>
2715 #include <string.h>
2716 #include <sys/stat.h>
2717 int main(void)
2718 {
2719         char *tmpl = "conftestXXXXXX";
2720         char name[2][80];
2721         int n;
2722         int result = 0;
2723         int fd;
2724         struct stat sb;
2725
2726         umask(077);
2727         for (n = 0; n < 2; ++n) {
2728                 strcpy(name[n], tmpl);
2729                 if ((fd = mkstemp(name[n])) >= 0) {
2730                         if (!strcmp(name[n], tmpl)
2731                          || stat(name[n], &sb) != 0
2732                          || (sb.st_mode & S_IFMT) != S_IFREG
2733                          || (sb.st_mode & 077) != 0) {
2734                                 result = 1;
2735                         }
2736                         close(fd);
2737                 }
2738         }
2739         if (result == 0
2740          && !strcmp(name[0], name[1]))
2741                 result = 1;
2742         ${cf_cv_main_return:-return}(result);
2743 }
2744 ],[cf_cv_func_mkstemp=yes
2745 ],[cf_cv_func_mkstemp=no
2746 ],[cf_cv_func_mkstemp=maybe])
2747 ])
2748 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2749         AC_CHECK_FUNC(mkstemp)
2750 fi
2751 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2752         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2753 fi
2754 ])dnl
2755 dnl ---------------------------------------------------------------------------
2756 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2757 dnl ----------
2758 dnl Write a debug message to config.log, along with the line number in the
2759 dnl configure script.
2760 AC_DEFUN([CF_MSG_LOG],[
2761 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2762 ])dnl
2763 dnl ---------------------------------------------------------------------------
2764 dnl CF_NCURSES_ADDON version: 6 updated: 2021/01/04 19:33:05
2765 dnl ----------------
2766 dnl Configure an ncurses add-on, built outside the ncurses tree.
2767 AC_DEFUN([CF_NCURSES_ADDON],[
2768 AC_REQUIRE([CF_NCURSES_CONFIG])
2769
2770 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2771
2772 AC_MSG_CHECKING(if you want wide-character code)
2773 AC_ARG_ENABLE(widec,
2774         [  --enable-widec          compile with wide-char/UTF-8 code],
2775         [with_widec=$enableval],
2776         [with_widec=no])
2777 AC_MSG_RESULT($with_widec)
2778 if test "$with_widec" = yes ; then
2779         CF_UTF8_LIB
2780         CF_NCURSES_CONFIG(ncursesw)
2781 else
2782         CF_NCURSES_CONFIG(ncurses)
2783 fi
2784
2785 if test "$NCURSES_CONFIG_PKG" != none ; then
2786         cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2787
2788         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2789         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2790         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2791
2792         cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2793         if test -z "$cf_cv_abi_version"
2794         then
2795                 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2796         fi
2797
2798 elif test "$NCURSES_CONFIG" != none ; then
2799
2800         cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2801
2802         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2803         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2804         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2805
2806         # ABI version is not available from headers
2807         cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2808
2809 else
2810
2811         for cf_name in MAJOR MINOR PATCH
2812         do
2813         cat >conftest.$ac_ext <<CF_EOF
2814         #include <${cf_cv_ncurses_header:-curses.h}>
2815         AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2816 CF_EOF
2817                 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2818                 AC_TRY_EVAL(cf_try)
2819                 if test -f conftest.out ; then
2820                         cf_result=`sed -e "s/^.*AUTOCONF_${cf_name}[[   ]][[    ]]*//" conftest.out`
2821                         eval NCURSES_$cf_name=\"$cf_result\"
2822                         # cat conftest.$ac_ext
2823                         # cat conftest.out
2824                 fi
2825         done
2826
2827         cf_cv_abi_version=${NCURSES_MAJOR}
2828
2829 fi
2830
2831 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2832
2833 dnl Show the computed version, for logging
2834 cf_cv_timestamp=`date`
2835
2836 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2837
2838 dnl We need these values in the generated headers
2839 AC_SUBST(NCURSES_MAJOR)
2840 AC_SUBST(NCURSES_MINOR)
2841 AC_SUBST(NCURSES_PATCH)
2842
2843 dnl We need these values in the generated makefiles
2844 AC_SUBST(cf_cv_rel_version)
2845 AC_SUBST(cf_cv_abi_version)
2846
2847 dnl FIXME - not needed for Ada95
2848 AC_SUBST(cf_cv_builtin_bool)
2849 AC_SUBST(cf_cv_header_stdbool_h)
2850 AC_SUBST(cf_cv_type_of_bool)dnl
2851
2852 ])
2853 dnl ---------------------------------------------------------------------------
2854 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2855 dnl -------------------
2856 dnl Check if we can compile with ncurses' header file
2857 dnl $1 is the cache variable to set
2858 dnl $2 is the header-file to include
2859 dnl $3 is the root name (ncurses or ncursesw)
2860 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2861         AC_TRY_COMPILE([
2862 ]ifelse($3,ncursesw,[
2863 #define _XOPEN_SOURCE_EXTENDED
2864 #undef  HAVE_LIBUTF8_H  /* in case we used CF_UTF8_LIB */
2865 #define HAVE_LIBUTF8_H  /* to force ncurses' header file to use cchar_t */
2866 ])[
2867 #include <$2>],[
2868 #ifdef NCURSES_VERSION
2869 ]ifelse($3,ncursesw,[
2870 #ifndef WACS_BSSB
2871         make an error
2872 #endif
2873 ])[
2874 printf("%s\\n", NCURSES_VERSION);
2875 #else
2876 #ifdef __NCURSES_H
2877 printf("old\\n");
2878 #else
2879         make an error
2880 #endif
2881 #endif
2882         ]
2883         ,[$1=$2]
2884         ,[$1=no])
2885 ])dnl
2886 dnl ---------------------------------------------------------------------------
2887 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2888 dnl -----------------
2889 dnl Tie together the configure-script macros for ncurses, preferring these in
2890 dnl order:
2891 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2892 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2893 dnl c) just plain libraries
2894 dnl
2895 dnl $1 is the root library name (default: "ncurses")
2896 AC_DEFUN([CF_NCURSES_CONFIG],[
2897 AC_REQUIRE([CF_PKG_CONFIG])
2898 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2899 cf_have_ncuconfig=no
2900
2901 if test "x${PKG_CONFIG:=none}" != xnone; then
2902         AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2903         if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2904                 AC_MSG_RESULT(yes)
2905
2906                 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2907                 cf_have_ncuconfig=unknown
2908
2909                 cf_save_CFLAGS="$CFLAGS"
2910                 cf_save_CPPFLAGS="$CPPFLAGS"
2911                 cf_save_LIBS="$LIBS"
2912
2913                 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2914                 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2915
2916                 # while -W for passing linker flags is prevalent, it is not "standard".
2917                 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2918                 # incompatible _and_ non-standard -W option which gives an error.  Work
2919                 # around that pitfall.
2920                 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2921                 (x*c[[89]]9@@*-W*)
2922                         CF_ADD_CFLAGS($cf_pkg_cflags)
2923                         CF_ADD_LIBS($cf_pkg_libs)
2924
2925                         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2926                                 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2927                                 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2928                                         int main(void)
2929                                         { const char *xx = curses_version(); return (xx == 0); }],
2930                                         [cf_test_ncuconfig=yes],
2931                                         [cf_test_ncuconfig=no],
2932                                         [cf_test_ncuconfig=maybe])],
2933                                 [cf_test_ncuconfig=no])
2934
2935                         CFLAGS="$cf_save_CFLAGS"
2936                         CPPFLAGS="$cf_save_CPPFLAGS"
2937                         LIBS="$cf_save_LIBS"
2938
2939                         if test "x$cf_test_ncuconfig" != xyes; then
2940                                 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^     ]]*//g'`
2941                                 cf_pkg_cflags="$cf_temp"
2942                                 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^       ]]*//g'`
2943                                 cf_pkg_libs="$cf_temp"
2944                         fi
2945                         ;;
2946                 esac
2947
2948                 CF_APPEND_CFLAGS($cf_pkg_cflags)
2949                 CF_ADD_LIBS($cf_pkg_libs)
2950
2951                 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2952                         [initscr(); mousemask(0,0); tigetstr((char *)0);],
2953                         [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2954                                 int main(void)
2955                                 { const char *xx = curses_version(); return (xx == 0); }],
2956                                 [cf_have_ncuconfig=yes],
2957                                 [cf_have_ncuconfig=no],
2958                                 [cf_have_ncuconfig=maybe])],
2959                         [cf_have_ncuconfig=no])
2960                 AC_MSG_RESULT($cf_have_ncuconfig)
2961                 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2962                 if test "$cf_have_ncuconfig" != "yes"
2963                 then
2964                         CPPFLAGS="$cf_save_CPPFLAGS"
2965                         LIBS="$cf_save_LIBS"
2966                         NCURSES_CONFIG_PKG=none
2967                 else
2968                         AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2969                         NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2970                         CF_TERM_HEADER
2971                 fi
2972
2973         else
2974                 AC_MSG_RESULT(no)
2975                 NCURSES_CONFIG_PKG=none
2976         fi
2977 else
2978         NCURSES_CONFIG_PKG=none
2979 fi
2980
2981 if test "x$cf_have_ncuconfig" = "xno"; then
2982         cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2983
2984         CF_ACVERSION_CHECK(2.52,
2985                 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2986                 [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2987
2988         if test "$NCURSES_CONFIG" != none ; then
2989
2990                 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2991                 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2992
2993                 # even with config script, some packages use no-override for curses.h
2994                 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2995
2996                 dnl like CF_NCURSES_CPPFLAGS
2997                 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2998
2999                 dnl like CF_NCURSES_LIBS
3000                 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
3001                 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3002
3003                 dnl like CF_NCURSES_VERSION
3004                 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
3005
3006         else
3007
3008                 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
3009                 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
3010
3011         fi
3012 else
3013         NCURSES_CONFIG=none
3014 fi
3015 ])dnl
3016 dnl ---------------------------------------------------------------------------
3017 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
3018 dnl -------------------
3019 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
3020 dnl the CPPFLAGS variable so we can include its header.
3021 dnl
3022 dnl The header files may be installed as either curses.h, or ncurses.h (would
3023 dnl be obsolete, except that some packagers prefer this name to distinguish it
3024 dnl from a "native" curses implementation).  If not installed for overwrite,
3025 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
3026 dnl /usr/include/ncurses), but someone may have installed overwriting the
3027 dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
3028 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
3029 dnl the header.
3030 dnl
3031 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
3032 dnl is already in the include-path, don't even bother with this, since we cannot
3033 dnl easily determine which file it is.  In this case, it has to be <curses.h>.
3034 dnl
3035 dnl The optional parameter gives the root name of the library, in case it is
3036 dnl not installed as the default curses library.  That is how the
3037 dnl wide-character version of ncurses is installed.
3038 AC_DEFUN([CF_NCURSES_CPPFLAGS],
3039 [AC_REQUIRE([CF_WITH_CURSES_DIR])
3040
3041 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
3042 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
3043
3044 test -n "$cf_cv_curses_dir" && \
3045 test "$cf_cv_curses_dir" != "no" && { \
3046   CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
3047 }
3048
3049 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
3050         cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
3051         { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
3052         for cf_header in $cf_header_list
3053         do
3054                 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
3055                 test "$cf_cv_ncurses_h" != no && break
3056         done
3057 ])
3058
3059 CF_NCURSES_HEADER
3060 CF_TERM_HEADER
3061
3062 # some applications need this, but should check for NCURSES_VERSION
3063 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3064
3065 CF_NCURSES_VERSION
3066 ])dnl
3067 dnl ---------------------------------------------------------------------------
3068 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
3069 dnl -----------------
3070 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
3071 dnl variations of ncurses' installs.
3072 dnl
3073 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
3074 AC_DEFUN([CF_NCURSES_HEADER],[
3075
3076 if test "$cf_cv_ncurses_h" != no ; then
3077         cf_cv_ncurses_header=$cf_cv_ncurses_h
3078 else
3079
3080 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
3081         test -n "$verbose" && echo
3082         CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
3083         test -n "$verbose" && echo "search path $cf_search"
3084         cf_save2_CPPFLAGS="$CPPFLAGS"
3085         for cf_incdir in $cf_search
3086         do
3087                 CF_ADD_INCDIR($cf_incdir)
3088                 for cf_header in \
3089                         ncurses.h \
3090                         curses.h
3091                 do
3092                         CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
3093                         if test "$cf_cv_ncurses_h2" != no ; then
3094                                 cf_cv_ncurses_h2=$cf_incdir/$cf_header
3095                                 test -n "$verbose" && echo $ECHO_N "    ... found $ECHO_C" 1>&AC_FD_MSG
3096                                 break
3097                         fi
3098                         test -n "$verbose" && echo "    ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
3099                 done
3100                 CPPFLAGS="$cf_save2_CPPFLAGS"
3101                 test "$cf_cv_ncurses_h2" != no && break
3102         done
3103         test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
3104         ])
3105
3106         CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
3107         cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
3108         if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
3109                 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
3110         fi
3111         CF_ADD_INCDIR($cf_1st_incdir)
3112
3113 fi
3114
3115 # Set definitions to allow ifdef'ing for ncurses.h
3116
3117 case "$cf_cv_ncurses_header" in
3118 (*ncurses.h)
3119         AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
3120         ;;
3121 esac
3122
3123 case "$cf_cv_ncurses_header" in
3124 (ncurses/curses.h|ncurses/ncurses.h)
3125         AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
3126         ;;
3127 (ncursesw/curses.h|ncursesw/ncurses.h)
3128         AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
3129         ;;
3130 esac
3131
3132 ])dnl
3133 dnl ---------------------------------------------------------------------------
3134 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
3135 dnl ---------------
3136 dnl Look for the ncurses library.  This is a little complicated on Linux,
3137 dnl because it may be linked with the gpm (general purpose mouse) library.
3138 dnl Some distributions have gpm linked with (bsd) curses, which makes it
3139 dnl unusable with ncurses.  However, we don't want to link with gpm unless
3140 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
3141 dnl and the linker will record a dependency.
3142 dnl
3143 dnl The optional parameter gives the root name of the library, in case it is
3144 dnl not installed as the default curses library.  That is how the
3145 dnl wide-character version of ncurses is installed.
3146 AC_DEFUN([CF_NCURSES_LIBS],
3147 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3148
3149 cf_nculib_root=ifelse($1,,ncurses,$1)
3150         # This works, except for the special case where we find gpm, but
3151         # ncurses is in a nonstandard location via $LIBS, and we really want
3152         # to link gpm.
3153 cf_ncurses_LIBS=""
3154 cf_ncurses_SAVE="$LIBS"
3155 AC_CHECK_LIB(gpm,Gpm_Open,
3156         [AC_CHECK_LIB(gpm,initscr,
3157                 [LIBS="$cf_ncurses_SAVE"],
3158                 [cf_ncurses_LIBS="-lgpm"])])
3159
3160 case "$host_os" in
3161 (freebsd*)
3162         # This is only necessary if you are linking against an obsolete
3163         # version of ncurses (but it should do no harm, since it is static).
3164         if test "$cf_nculib_root" = ncurses ; then
3165                 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3166         fi
3167         ;;
3168 esac
3169
3170 CF_ADD_LIBS($cf_ncurses_LIBS)
3171
3172 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3173 then
3174         CF_ADD_LIBS(-l$cf_nculib_root)
3175 else
3176         CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3177                 [#include <${cf_cv_ncurses_header:-curses.h}>],
3178                 [initscr()],
3179                 initscr)
3180 fi
3181
3182 if test -n "$cf_ncurses_LIBS" ; then
3183         AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3184         cf_ncurses_SAVE="$LIBS"
3185         for p in $cf_ncurses_LIBS ; do
3186                 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3187                 if test "$q" != "$LIBS" ; then
3188                         LIBS="$q"
3189                 fi
3190         done
3191         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3192                 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3193                 [AC_MSG_RESULT(yes)],
3194                 [AC_MSG_RESULT(no)
3195                  LIBS="$cf_ncurses_SAVE"])
3196 fi
3197
3198 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3199 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3200 ])dnl
3201 dnl ---------------------------------------------------------------------------
3202 dnl CF_NCURSES_VERSION version: 16 updated: 2020/12/31 20:19:42
3203 dnl ------------------
3204 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3205 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
3206 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3207 AC_DEFUN([CF_NCURSES_VERSION],
3208 [
3209 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3210 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3211         cf_cv_ncurses_version=no
3212         cf_tempfile=out$$
3213         rm -f "$cf_tempfile"
3214         AC_TRY_RUN([
3215 #include <${cf_cv_ncurses_header:-curses.h}>
3216 #include <stdio.h>
3217 int main(void)
3218 {
3219         FILE *fp = fopen("$cf_tempfile", "w");
3220 #ifdef NCURSES_VERSION
3221 # ifdef NCURSES_VERSION_PATCH
3222         fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3223 # else
3224         fprintf(fp, "%s\\n", NCURSES_VERSION);
3225 # endif
3226 #else
3227 # ifdef __NCURSES_H
3228         fprintf(fp, "old\\n");
3229 # else
3230         make an error
3231 # endif
3232 #endif
3233         ${cf_cv_main_return:-return}(0);
3234 }],[
3235         cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3236
3237         # This will not work if the preprocessor splits the line after the
3238         # Autoconf token.  The 'unproto' program does that.
3239         cat > "conftest.$ac_ext" <<EOF
3240 #include <${cf_cv_ncurses_header:-curses.h}>
3241 #undef Autoconf
3242 #ifdef NCURSES_VERSION
3243 Autoconf NCURSES_VERSION
3244 #else
3245 #ifdef __NCURSES_H
3246 Autoconf "old"
3247 #endif
3248 ;
3249 #endif
3250 EOF
3251         cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3252         AC_TRY_EVAL(cf_try)
3253         if test -f conftest.out ; then
3254                 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3255                 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3256                 rm -f conftest.out
3257         fi
3258 ])
3259         rm -f "$cf_tempfile"
3260 ])
3261 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3262 ])dnl
3263 dnl ---------------------------------------------------------------------------
3264 dnl CF_OBJ_SUBDIR version: 8 updated: 2021/01/01 13:31:04
3265 dnl -------------
3266 dnl Compute the object-directory name from the given model name
3267 AC_DEFUN([CF_OBJ_SUBDIR],
3268 [
3269         case $1 in
3270         (libtool) $2='obj_lo'  ;;
3271         (normal)  $2='objects' ;;
3272         (debug)   $2='obj_g' ;;
3273         (profile) $2='obj_p' ;;
3274         (shared)
3275                 case "$cf_cv_system_name" in
3276                 (cygwin|msys)
3277                         $2='objects' ;;
3278                 (*)
3279                         $2='obj_s' ;;
3280                 esac
3281         esac
3282 ])dnl
3283 dnl ---------------------------------------------------------------------------
3284 dnl CF_PATHSEP version: 8 updated: 2021/01/01 13:31:04
3285 dnl ----------
3286 dnl Provide a value for the $PATH and similar separator (or amend the value
3287 dnl as provided in autoconf 2.5x).
3288 AC_DEFUN([CF_PATHSEP],
3289 [
3290         AC_MSG_CHECKING(for PATH separator)
3291         case "$cf_cv_system_name" in
3292         (os2*)  PATH_SEPARATOR=';'  ;;
3293         (*)     ${PATH_SEPARATOR:=':'}  ;;
3294         esac
3295 ifelse([$1],,,[$1=$PATH_SEPARATOR])
3296         AC_SUBST(PATH_SEPARATOR)
3297         AC_MSG_RESULT($PATH_SEPARATOR)
3298 ])dnl
3299 dnl ---------------------------------------------------------------------------
3300 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3301 dnl --------------
3302 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
3303 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3304 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
3305 dnl delayed evaluation of those symbols.
3306 AC_DEFUN([CF_PATH_SYNTAX],[
3307 if test "x$prefix" != xNONE; then
3308         cf_path_syntax="$prefix"
3309 else
3310         cf_path_syntax="$ac_default_prefix"
3311 fi
3312
3313 case ".[$]$1" in
3314 (.\[$]\(*\)*|.\'*\'*)
3315         ;;
3316 (..|./*|.\\*)
3317         ;;
3318 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3319         ;;
3320 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3321         eval $1="[$]$1"
3322         case ".[$]$1" in
3323         (.NONE/*)
3324                 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3325                 ;;
3326         esac
3327         ;;
3328 (.no|.NONE/*)
3329         $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3330         ;;
3331 (*)
3332         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3333         ;;
3334 esac
3335 ])dnl
3336 dnl ---------------------------------------------------------------------------
3337 dnl CF_PKG_CONFIG version: 11 updated: 2021/01/01 13:31:04
3338 dnl -------------
3339 dnl Check for the package-config program, unless disabled by command-line.
3340 AC_DEFUN([CF_PKG_CONFIG],
3341 [
3342 AC_MSG_CHECKING(if you want to use pkg-config)
3343 AC_ARG_WITH(pkg-config,
3344         [  --with-pkg-config{=path} enable/disable use of pkg-config],
3345         [cf_pkg_config=$withval],
3346         [cf_pkg_config=yes])
3347 AC_MSG_RESULT($cf_pkg_config)
3348
3349 case "$cf_pkg_config" in
3350 (no)
3351         PKG_CONFIG=none
3352         ;;
3353 (yes)
3354         CF_ACVERSION_CHECK(2.52,
3355                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3356                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3357         ;;
3358 (*)
3359         PKG_CONFIG=$withval
3360         ;;
3361 esac
3362
3363 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3364 if test "$PKG_CONFIG" != none ; then
3365         CF_PATH_SYNTAX(PKG_CONFIG)
3366 elif test "x$cf_pkg_config" != xno ; then
3367         AC_MSG_WARN(pkg-config is not installed)
3368 fi
3369
3370 AC_SUBST(PKG_CONFIG)
3371 ])dnl
3372 dnl ---------------------------------------------------------------------------
3373 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3374 dnl -----------------
3375 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3376 dnl
3377 dnl     POSIX.1-1990                            _POSIX_SOURCE
3378 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
3379 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
3380 dnl             Bindings Option
3381 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
3382 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
3383 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
3384 dnl
3385 dnl Parameters:
3386 dnl     $1 is the nominal value for _POSIX_C_SOURCE
3387 AC_DEFUN([CF_POSIX_C_SOURCE],
3388 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3389
3390 if test "$cf_cv_posix_visible" = no; then
3391
3392 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3393
3394 cf_save_CFLAGS="$CFLAGS"
3395 cf_save_CPPFLAGS="$CPPFLAGS"
3396
3397 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3398 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3399
3400 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3401         CF_MSG_LOG(if the symbol is already defined go no further)
3402         AC_TRY_COMPILE([#include <sys/types.h>],[
3403 #ifndef _POSIX_C_SOURCE
3404 make an error
3405 #endif],
3406         [cf_cv_posix_c_source=no],
3407         [cf_want_posix_source=no
3408          case .$cf_POSIX_C_SOURCE in
3409          (.[[12]]??*)
3410                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3411                 ;;
3412          (.2)
3413                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3414                 cf_want_posix_source=yes
3415                 ;;
3416          (.*)
3417                 cf_want_posix_source=yes
3418                 ;;
3419          esac
3420          if test "$cf_want_posix_source" = yes ; then
3421                 AC_TRY_COMPILE([#include <sys/types.h>],[
3422 #ifdef _POSIX_SOURCE
3423 make an error
3424 #endif],[],
3425                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3426          fi
3427          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3428          CFLAGS="$cf_trim_CFLAGS"
3429          CPPFLAGS="$cf_trim_CPPFLAGS"
3430          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3431          CF_MSG_LOG(if the second compile does not leave our definition intact error)
3432          AC_TRY_COMPILE([#include <sys/types.h>],[
3433 #ifndef _POSIX_C_SOURCE
3434 make an error
3435 #endif],,
3436          [cf_cv_posix_c_source=no])
3437          CFLAGS="$cf_save_CFLAGS"
3438          CPPFLAGS="$cf_save_CPPFLAGS"
3439         ])
3440 ])
3441
3442 if test "$cf_cv_posix_c_source" != no ; then
3443         CFLAGS="$cf_trim_CFLAGS"
3444         CPPFLAGS="$cf_trim_CPPFLAGS"
3445         CF_ADD_CFLAGS($cf_cv_posix_c_source)
3446 fi
3447
3448 fi # cf_cv_posix_visible
3449
3450 ])dnl
3451 dnl ---------------------------------------------------------------------------
3452 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3453 dnl ----------------
3454 dnl POSIX documents test-macros which an application may set before any system
3455 dnl headers are included to make features available.
3456 dnl
3457 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3458 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3459 dnl recent features visible in the system header files unless the application
3460 dnl overrides the corresponding test-macros.  Doing that introduces portability
3461 dnl problems.
3462 dnl
3463 dnl This macro makes a special check for the symbols used for this, to avoid a
3464 dnl conflicting definition.
3465 AC_DEFUN([CF_POSIX_VISIBLE],
3466 [
3467 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3468 AC_TRY_COMPILE([#include <stdio.h>],[
3469 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3470         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3471         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3472         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3473 #error conflicting symbols found
3474 #endif
3475 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3476 ])
3477 ])dnl
3478 dnl ---------------------------------------------------------------------------
3479 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
3480 dnl ----------
3481 dnl Check for archiver "ar".
3482 AC_DEFUN([CF_PROG_AR],[
3483 AC_CHECK_TOOL(AR, ar, ar)
3484 ])
3485 dnl ---------------------------------------------------------------------------
3486 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
3487 dnl -----------
3488 dnl Check for awk, ensure that the check found something.
3489 AC_DEFUN([CF_PROG_AWK],
3490 [
3491 AC_PROG_AWK
3492 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
3493 ])dnl
3494 dnl ---------------------------------------------------------------------------
3495 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3496 dnl ----------
3497 dnl standard check for CC, plus followup sanity checks
3498 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3499 AC_DEFUN([CF_PROG_CC],[
3500 CF_ACVERSION_CHECK(2.53,
3501         [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3502          AC_REQUIRE([AC_PROG_CC])],
3503         [])
3504 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3505 CF_GCC_VERSION
3506 CF_ACVERSION_CHECK(2.52,
3507         [AC_PROG_CC_STDC],
3508         [CF_ANSI_CC_REQD])
3509 CF_CC_ENV_FLAGS
3510 ])dnl
3511 dnl ---------------------------------------------------------------------------
3512 dnl CF_PROG_CC_C_O version: 6 updated: 2021/01/01 13:31:04
3513 dnl --------------
3514 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3515 dnl the output file can be renamed, and allows for a shell variable that can
3516 dnl be used later.  The parameter is either CC or CXX.  The result is the
3517 dnl cache variable:
3518 dnl     $cf_cv_prog_CC_c_o
3519 dnl     $cf_cv_prog_CXX_c_o
3520 dnl
3521 dnl $1 = compiler
3522 dnl $2 = compiler options, if any
3523 AC_DEFUN([CF_PROG_CC_C_O],
3524 [AC_REQUIRE([AC_PROG_CC])dnl
3525 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3526 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3527 [
3528 cat > conftest.$ac_ext <<CF_EOF
3529 int main(void)
3530 {
3531         ${cf_cv_main_return:-return}(0);
3532 }
3533 CF_EOF
3534 # We do the test twice because some compilers refuse to overwrite an
3535 # existing .o file with -o, though they will create one.
3536 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3537 if AC_TRY_EVAL(ac_try) &&
3538   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3539 then
3540   eval cf_cv_prog_$1_c_o=yes
3541 else
3542   eval cf_cv_prog_$1_c_o=no
3543 fi
3544 rm -rf ./conftest*
3545 ])dnl
3546 if test "$cf_cv_prog_$1_c_o" = yes; then
3547   AC_MSG_RESULT([yes])
3548 else
3549   AC_MSG_RESULT([no])
3550 fi
3551 ])dnl
3552 dnl ---------------------------------------------------------------------------
3553 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3554 dnl -------------
3555 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3556 dnl This macro adds a check to ensure the script found something.
3557 AC_DEFUN([CF_PROG_EGREP],
3558 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3559         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3560                 then ac_cv_prog_egrep='grep -E'
3561                 else ac_cv_prog_egrep='egrep'
3562         fi])
3563         EGREP=$ac_cv_prog_egrep
3564         AC_SUBST([EGREP])
3565         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3566 ])dnl
3567 dnl ---------------------------------------------------------------------------
3568 dnl CF_PROG_EXT version: 15 updated: 2021/01/02 09:31:20
3569 dnl -----------
3570 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3571 AC_DEFUN([CF_PROG_EXT],
3572 [
3573 AC_REQUIRE([CF_CHECK_CACHE])
3574 case "$cf_cv_system_name" in
3575 (os2*)
3576         CFLAGS="$CFLAGS -Zmt"
3577         CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3578         CXXFLAGS="$CXXFLAGS -Zmt"
3579         # autoconf's macro sets -Zexe and suffix both, which conflict:w
3580         LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3581         ac_cv_exeext=.exe
3582         ;;
3583 esac
3584
3585 AC_EXEEXT
3586 AC_OBJEXT
3587
3588 PROG_EXT="$EXEEXT"
3589 AC_SUBST(PROG_EXT)
3590 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3591 ])dnl
3592 dnl ---------------------------------------------------------------------------
3593 dnl CF_PROG_GNAT version: 12 updated: 2021/01/02 17:09:14
3594 dnl ------------
3595 dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
3596 AC_DEFUN([CF_PROG_GNAT],[
3597 for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
3598 do
3599         CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
3600
3601         unset ac_cv_path_cf_TEMP_gnat
3602         unset cf_TEMP_gnat
3603         AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
3604         eval "cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat"
3605
3606         if test "x$cf_TEMP_gnat" != xno; then
3607                 unset cf_cv_gnat_version
3608                 unset cf_TEMP_gnat
3609                 CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
3610         fi
3611         eval "cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat"
3612
3613         unset cf_TEMP_gnat
3614         unset cf_cv_gnat_version
3615         unset ac_cv_path_cf_TEMP_gnat
3616 done
3617
3618 if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
3619         cf_ada_make=
3620         cf_cv_prog_gnat_correct=no
3621 else
3622         cf_ada_make=gnatmake
3623         if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
3624                 # gprconfig is newer than gnatmake; we can continue...
3625                 cf_ada_config="##"
3626         else
3627                 rm -rf ./conftest* ./*~conftest*
3628                 if mkdir conftest.src
3629                 then
3630                         cf_ada_config=""
3631                         cd conftest.src
3632                         for cf_gprconfig in Ada C
3633                         do
3634                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3635                                 if test "$cf_gprconfig" = C
3636                                 then
3637                                         for cf_gprconfig_param in \
3638                                                 "$cf_gprconfig,,,,GNATGCC" \
3639                                                 "$cf_gprconfig,,,,GCC" \
3640                                                 "$cf_gprconfig"
3641                                         do
3642                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3643                                                 test -n "$cf_gprconfig_value" && break
3644                                         done
3645                                 else
3646                                         cf_gprconfig_param=$cf_gprconfig
3647                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3648                                 fi
3649                                 if test -n "$cf_gprconfig_value"
3650                                 then
3651                                         eval "cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value"
3652                                         AC_MSG_RESULT($cf_gprconfig_value)
3653                                 else
3654                                         AC_MSG_RESULT(missing)
3655                                         cf_ada_config="#"
3656                                         break
3657                                 fi
3658                         done
3659                         cd ..
3660                         rm -rf ./conftest* ./*~conftest*
3661                 fi
3662         fi
3663         if test "x$cf_ada_config" != "x#"
3664         then
3665                 CF_GNAT_VERSION
3666                 CF_CHECK_GNAT_VERSION
3667                 AC_CHECK_PROG(M4_exists, m4, yes, no)
3668                 if test "$ac_cv_prog_M4_exists" = no; then
3669                         cf_cv_prog_gnat_correct=no
3670                         AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
3671                 fi
3672                 if test "$cf_cv_prog_gnat_correct" = yes; then
3673                         AC_MSG_CHECKING(if GNAT works)
3674                         CF_GNAT_TRY_RUN([procedure conftest;],
3675 [with Text_IO;
3676 with GNAT.OS_Lib;
3677 procedure conftest is
3678 begin
3679    Text_IO.Put ("Hello World");
3680    Text_IO.New_Line;
3681    GNAT.OS_Lib.OS_Exit (0);
3682 end conftest;],
3683 [cf_cv_prog_gnat_correct=yes],
3684 [cf_cv_prog_gnat_correct=no])
3685                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3686                 fi
3687         else
3688                 cf_cv_prog_gnat_correct=no
3689         fi
3690 fi
3691
3692 AC_SUBST(cf_ada_make)
3693 AC_SUBST(cf_ada_config)
3694 AC_SUBST(cf_ada_config_Ada)
3695 AC_SUBST(cf_ada_config_C)
3696 ])dnl
3697 dnl ---------------------------------------------------------------------------
3698 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3699 dnl ---------------
3700 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
3701 dnl misc/tabset install won't work properly.  Usually this happens only when
3702 dnl using the fallback mkinstalldirs script
3703 AC_DEFUN([CF_PROG_INSTALL],
3704 [AC_PROG_INSTALL
3705 case $INSTALL in
3706 (/*)
3707         ;;
3708 (*)
3709         CF_DIRNAME(cf_dir,$INSTALL)
3710         test -z "$cf_dir" && cf_dir=.
3711         INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3712         ;;
3713 esac
3714 ])dnl
3715 dnl ---------------------------------------------------------------------------
3716 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3717 dnl ------------
3718 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3719 dnl option if it is supported.
3720 AC_DEFUN([CF_PROG_LN_S],[
3721 AC_PROG_LN_S
3722 AC_MSG_CHECKING(if $LN_S -f options work)
3723
3724 rm -f conf$$.src conf$$dst
3725 echo >conf$$.dst
3726 echo first >conf$$.src
3727 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3728         cf_prog_ln_sf=yes
3729 else
3730         cf_prog_ln_sf=no
3731 fi
3732 rm -f conf$$.dst conf$$src
3733 AC_MSG_RESULT($cf_prog_ln_sf)
3734
3735 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3736 ])dnl
3737 dnl ---------------------------------------------------------------------------
3738 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3739 dnl ----------------
3740 dnl Remove a given option from CFLAGS/CPPFLAGS
3741 dnl $1 = option to remove
3742 dnl $2 = variable to update
3743 dnl $3 = nonempty to allow verbose message
3744 define([CF_REMOVE_CFLAGS],
3745 [
3746 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3747 while true
3748 do
3749         cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[  ]][[    ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^   ]][[^   ]]*\\)\?%%" -e 's/^[[   ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3750         test "[$]$2" != "$cf_old_cflag" || break
3751         ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3752         $2="$cf_old_cflag"
3753 done
3754 ])dnl
3755 dnl ---------------------------------------------------------------------------
3756 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3757 dnl ----------------
3758 dnl Remove all -U and -D options that refer to the given symbol from a list
3759 dnl of C compiler options.  This works around the problem that not all
3760 dnl compilers process -U and -D options from left-to-right, so a -U option
3761 dnl cannot be used to cancel the effect of a preceding -D option.
3762 dnl
3763 dnl $1 = target (which could be the same as the source variable)
3764 dnl $2 = source (including '$')
3765 dnl $3 = symbol to remove
3766 define([CF_REMOVE_DEFINE],
3767 [
3768 $1=`echo "$2" | \
3769         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
3770                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
3771 ])dnl
3772 dnl ---------------------------------------------------------------------------
3773 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3774 dnl -------------
3775 dnl Remove the given library from the symbol
3776 dnl
3777 dnl $1 = target (which could be the same as the source variable)
3778 dnl $2 = source (including '$')
3779 dnl $3 = library to remove
3780 define([CF_REMOVE_LIB],
3781 [
3782 # remove $3 library from $2
3783 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
3784 ])dnl
3785 dnl ---------------------------------------------------------------------------
3786 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3787 dnl ---------------------
3788 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3789 dnl $1 = name of current macro
3790 define([CF_RESTORE_XTRA_FLAGS],
3791 [
3792 LIBS="$cf_save_LIBS_$1"
3793 CFLAGS="$cf_save_CFLAGS_$1"
3794 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3795 ])dnl
3796 dnl ---------------------------------------------------------------------------
3797 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3798 dnl ------------------
3799 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3800 dnl and libraries which do not update those variables.
3801 dnl
3802 dnl $1 = name of current macro
3803 define([CF_SAVE_XTRA_FLAGS],
3804 [
3805 cf_save_LIBS_$1="$LIBS"
3806 cf_save_CFLAGS_$1="$CFLAGS"
3807 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3808 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3809 for cf_X_CFLAGS in $X_CFLAGS
3810 do
3811         case "x$cf_X_CFLAGS" in
3812         x-[[IUD]]*)
3813                 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3814                 ;;
3815         *)
3816                 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3817                 ;;
3818         esac
3819 done
3820 ])dnl
3821 dnl ---------------------------------------------------------------------------
3822 dnl CF_SHARED_OPTS version: 107 updated: 2021/09/04 06:47:34
3823 dnl --------------
3824 dnl --------------
3825 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3826 dnl library.
3827 dnl
3828 dnl Notes:
3829 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3830 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3831 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3832 dnl shared library since that can lead to unexpected results at runtime.
3833 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3834 dnl libraries are compiled in ../../lib
3835 dnl
3836 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3837 dnl to install symbolic links to the rel/abi versions of shared libraries.
3838 dnl
3839 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3840 dnl version when making symbolic links.
3841 dnl
3842 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3843 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3844 dnl (ex: libncurses.so.<ver>).
3845 dnl
3846 dnl Some loaders leave 'so_locations' lying around.  It is nice to clean up.
3847 AC_DEFUN([CF_SHARED_OPTS],
3848 [
3849         AC_REQUIRE([CF_LD_RPATH_OPT])
3850
3851         RM_SHARED_OPTS=
3852         LOCAL_LDFLAGS=
3853         LOCAL_LDFLAGS2=
3854         LD_SHARED_OPTS=
3855         INSTALL_LIB="-m 644"
3856         : ${rel_builddir:=.}
3857
3858         shlibdir=$libdir
3859         AC_SUBST(shlibdir)
3860
3861         MAKE_DLLS="#"
3862         AC_SUBST(MAKE_DLLS)
3863
3864         cf_cv_do_symlinks=no
3865         cf_ld_rpath_opt=
3866         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3867
3868         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3869         AC_ARG_WITH(shlib-version,
3870         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
3871         [test -z "$withval" && withval=auto
3872         case "$withval" in
3873         (yes)
3874                 cf_cv_shlib_version=auto
3875                 ;;
3876         (rel|abi|auto)
3877                 cf_cv_shlib_version=$withval
3878                 ;;
3879         (*)
3880                 AC_MSG_RESULT($withval)
3881                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3882                 ;;
3883         esac
3884         ],[cf_cv_shlib_version=auto])
3885         AC_MSG_RESULT($cf_cv_shlib_version)
3886
3887         cf_cv_rm_so_locs=no
3888         cf_try_cflags=
3889
3890         # Some less-capable ports of gcc support only -fpic
3891         CC_SHARED_OPTS=
3892
3893         cf_try_fPIC=no
3894         if test "$GCC" = yes
3895         then
3896                 cf_try_fPIC=yes
3897         else
3898                 case "$cf_cv_system_name" in
3899                 (*linux*)       # e.g., PGI compiler
3900                         cf_try_fPIC=yes
3901                         ;;
3902                 esac
3903         fi
3904
3905         if test "$cf_try_fPIC" = yes
3906         then
3907                 AC_MSG_CHECKING(which $CC option to use)
3908                 cf_save_CFLAGS="$CFLAGS"
3909                 for CC_SHARED_OPTS in -fPIC -fpic ''
3910                 do
3911                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3912                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
3913                 done
3914                 AC_MSG_RESULT($CC_SHARED_OPTS)
3915                 CFLAGS="$cf_save_CFLAGS"
3916         fi
3917
3918         cf_cv_shlib_version_infix=no
3919
3920         case "$cf_cv_system_name" in
3921         (aix4.[3-9]*|aix[[5-7]]*)
3922                 if test "$GCC" = yes; then
3923                         CC_SHARED_OPTS='-Wl,-brtl'
3924                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3925                 else
3926                         CC_SHARED_OPTS='-brtl'
3927                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
3928                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3929                 fi
3930                 ;;
3931         (beos*)
3932                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
3933                 ;;
3934         (cygwin*)
3935                 CC_SHARED_OPTS=
3936                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3937                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3938                 cf_cv_shlib_version=cygdll
3939                 cf_cv_shlib_version_infix=cygdll
3940                 shlibdir=$bindir
3941                 MAKE_DLLS=
3942                 cat >mk_shared_lib.sh <<-CF_EOF
3943                 #!$SHELL
3944                 SHARED_LIB=\[$]1
3945                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3946                 shift
3947                 cat <<-EOF
3948                 Linking shared library
3949                 ** SHARED_LIB \[$]SHARED_LIB
3950                 ** IMPORT_LIB \[$]IMPORT_LIB
3951 EOF
3952                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3953 CF_EOF
3954                 chmod +x mk_shared_lib.sh
3955                 ;;
3956         (msys*)
3957                 CC_SHARED_OPTS=
3958                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3959                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3960                 cf_cv_shlib_version=msysdll
3961                 cf_cv_shlib_version_infix=msysdll
3962                 shlibdir=$bindir
3963                 MAKE_DLLS=
3964                 cat >mk_shared_lib.sh <<-CF_EOF
3965                 #!$SHELL
3966                 SHARED_LIB=\[$]1
3967                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3968                 shift
3969                 cat <<-EOF
3970                 Linking shared library
3971                 ** SHARED_LIB \[$]SHARED_LIB
3972                 ** IMPORT_LIB \[$]IMPORT_LIB
3973 EOF
3974                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3975 CF_EOF
3976                 chmod +x mk_shared_lib.sh
3977                 ;;
3978         (darwin*)
3979                 cf_try_cflags="no-cpp-precomp"
3980                 CC_SHARED_OPTS="-dynamic"
3981                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
3982                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
3983                 cf_cv_shlib_version_infix=yes
3984                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
3985                         cf_save_LDFLAGS=$LDFLAGS
3986                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3987                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
3988                                 LDFLAGS=$cf_save_LDFLAGS])
3989                 if test "$cf_cv_ldflags_search_paths_first" = yes; then
3990                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3991                 fi
3992                 ;;
3993         (haiku*)
3994                 CF_SHARED_SONAME
3995                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3996                 ;;
3997         (hpux[[7-8]]*)
3998                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
3999                 if test "$GCC" != yes; then
4000                         CC_SHARED_OPTS='+Z'
4001                 fi
4002                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
4003                 INSTALL_LIB="-m 555"
4004                 ;;
4005         (hpux*)
4006                 # (tested with gcc 2.7.2 -- I don't have c89)
4007                 if test "$GCC" = yes; then
4008                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
4009                 else
4010                         CC_SHARED_OPTS='+Z'
4011                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
4012                 fi
4013                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
4014                 # HP-UX shared libraries must be executable, and should be
4015                 # readonly to exploit a quirk in the memory manager.
4016                 INSTALL_LIB="-m 555"
4017                 ;;
4018         (interix*)
4019                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4020                 if test "$cf_cv_shlib_version" = rel; then
4021                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4022                 else
4023                         cf_shared_soname='`basename $[@]`'
4024                 fi
4025                 CC_SHARED_OPTS=
4026                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
4027                 ;;
4028         (irix*)
4029                 if test "$cf_cv_enable_rpath" = yes ; then
4030                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4031                 fi
4032                 # tested with IRIX 5.2 and 'cc'.
4033                 if test "$GCC" != yes; then
4034                         CC_SHARED_OPTS='-KPIC'
4035                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
4036                 else
4037                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
4038                 fi
4039                 cf_cv_rm_so_locs=yes
4040                 ;;
4041         (linux*|gnu*|k*bsd*-gnu)
4042                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4043                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4044                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4045                 fi
4046                 if test "$cf_cv_enable_rpath" = yes ; then
4047                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4048                 fi
4049                 CF_SHARED_SONAME
4050                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4051                 ;;
4052         (mingw*msvc*)
4053                 cf_cv_shlib_version=msvcdll
4054                 cf_cv_shlib_version_infix=msvcdll
4055                 shlibdir=$bindir
4056                 MAKE_DLLS=
4057                 if test "$DFT_LWR_MODEL" = "shared" ; then
4058                         LOCAL_LDFLAGS="-link -dll"
4059                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4060                         EXTRA_LDFLAGS="-link -dll $EXTRA_LDFLAGS"
4061                 fi
4062                 CC_SHARED_OPTS=
4063                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ ${LD} [$]{CFLAGS}'
4064                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.lib"
4065                 cat >mk_shared_lib.sh <<-CF_EOF
4066                 #!$SHELL
4067                 SHARED_LIB=\[$]1
4068                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.lib/'\`
4069                 shift
4070                 my_ld=\[$]1
4071                 shift
4072                 cat <<-EOF
4073                 Linking shared library
4074                 ** SHARED LIB \$SHARED_LIB
4075                 ** IMPORT_LIB \$IMPORT_LIB
4076 EOF
4077                 args=\$(echo \[$]* | sed -E "s#-l(\w*)#\1.dll.lib#g" | sed -E "s#-L(\w*)#-LIBPATH:\1#g")
4078                 exec \$my_ld -DLL -IMPLIB:"\${IMPORT_LIB}" -OUT:"\${SHARED_LIB}" ${LDFLAGS} \$args
4079                 mv "\${IMPORT_LIB}" "\${IMPORT_LIB}"
4080 CF_EOF
4081                 chmod +x mk_shared_lib.sh
4082                 cat >mk_prog.sh <<-CF_EOF
4083                 #!$SHELL
4084                 shift
4085                 # Ignore first argument (compiler) and use LD (link.exe) unconditionally
4086                 LD="[$]LD"
4087                 clopts=()
4088                 ldopts=("/subsystem:console")
4089                 libs=()
4090                 isdll=0
4091                 while test \[$]# -gt 0; do
4092                         case "\[$]1" in
4093                                 -link)
4094                                         # ignore -link argument
4095                                         ;;
4096                                 -M[[TD]] | -M[[TD]]d)
4097                                         # ignore runtime-library option
4098                                         ;;
4099                                 -dll)
4100                                         isdll=1
4101                                         ;;
4102                                 -W* | -w*)
4103                                         # ignore warnings
4104                                         ;;
4105                                 -D*)
4106                                         clopts+=("\[$]1")
4107                                         ;;
4108                                 -I*)
4109                                         clopts+=("\[$]1")
4110                                         ;;
4111                                 -l*)
4112                                         libs+=("\`echo \"\[$]1\" | sed \"s/^-l//\"\`")
4113                                         ;;
4114                                 -L*)
4115                                         ldopts+=("\`echo \"\[$]1\" | sed \"s/^-L/-LIBPATH:/\"\`")
4116                                         ;;
4117                                 *.obj | *.o)
4118                                         ldopts+=("\[$]1")
4119                                         ;;
4120                                 -Wl,*)
4121                                         for linkarg in \`echo '\[$]1' | sed -e 's/-Wl,//' -e 's/,/ /'\`; do
4122                                                 ldopts+=("\[$]{linkarg}")
4123                                         done
4124                                         ;;
4125                                 *.lib)
4126                                         ldopts+=("\[$]1")
4127                                         ;;
4128                                 -o)
4129                                         shift
4130                                         ldopts+=("-out:\[$]1")
4131                                         ;;
4132                                 *)
4133                                         clopts+=("\[$]1")
4134                                         ldopts+=("\[$]1")
4135                                         ;;
4136                         esac
4137                         shift
4138                 done
4139                 if [[ "\$isdll" -ne 0 ]]; then
4140                         for lib in \[$]{libs[[*]]}; do
4141                                 ldopts+=("\[$]lib.dll.lib")
4142                         done
4143                 else
4144                         for lib in \[$]{libs[[*]]}; do
4145                                 ldopts+=("\[$]lib.lib")
4146                         done
4147                 fi
4148                 cat <<-EOF
4149                 Creating program
4150                 ** ld options:   "\[$]{ldopts[[@]]}"
4151 EOF
4152                 exec \[$]LD \[$]{ldopts[[@]]}
4153 CF_EOF
4154                 chmod +x mk_prog.sh
4155                 LINK_PROGS="$SHELL ${rel_builddir}/mk_prog.sh"
4156                 LINK_TESTS="$SHELL ${rel_builddir}/mk_prog.sh"
4157                 ;;
4158         (mingw*)
4159                 cf_cv_shlib_version=mingw
4160                 cf_cv_shlib_version_infix=mingw
4161                 shlibdir=$bindir
4162                 MAKE_DLLS=
4163                 if test "$DFT_LWR_MODEL" = "shared" ; then
4164                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
4165                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4166                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
4167                 fi
4168                 CC_SHARED_OPTS=
4169                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
4170                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
4171                 cat >mk_shared_lib.sh <<-CF_EOF
4172                 #!$SHELL
4173                 SHARED_LIB=\[$]1
4174                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
4175                 shift
4176                 cat <<-EOF
4177                 Linking shared library
4178                 ** SHARED_LIB \[$]SHARED_LIB
4179                 ** IMPORT_LIB \[$]IMPORT_LIB
4180 EOF
4181                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
4182 CF_EOF
4183                 chmod +x mk_shared_lib.sh
4184                 ;;
4185         (openbsd[[2-9]].*|mirbsd*)
4186                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4187                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4188                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4189                 fi
4190                 if test "$cf_cv_enable_rpath" = yes ; then
4191                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4192                 fi
4193                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4194                 CF_SHARED_SONAME
4195                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4196                 ;;
4197         (nskJ*)
4198                 CC_SHARED_OPTS=
4199                 MK_SHARED_LIB='${LD} -Wshared -Weld=-export_all -o $[@]'
4200                 ;;
4201         (nskL*)
4202                 CC_SHARED_OPTS=
4203                 MK_SHARED_LIB='${LD} -Wshared -Wxld=-export_all -o $[@]'
4204                 ;;
4205         (nto-qnx*|openbsd*|freebsd[[12]].*)
4206                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4207                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
4208                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4209                 ;;
4210         (dragonfly*|freebsd*)
4211                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4212                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4213                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4214                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
4215                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4216                 fi
4217                 CF_SHARED_SONAME
4218                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
4219                 ;;
4220         (netbsd*)
4221                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
4222                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
4223                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
4224                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4225                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
4226                         if test "$cf_cv_shlib_version" = auto; then
4227                         if test -f /usr/libexec/ld.elf_so; then
4228                                 cf_cv_shlib_version=abi
4229                         else
4230                                 cf_cv_shlib_version=rel
4231                         fi
4232                         fi
4233                         CF_SHARED_SONAME
4234                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
4235                 else
4236                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -o $[@]'
4237                 fi
4238                 ;;
4239         (osf*|mls+*)
4240                 # tested with OSF/1 V3.2 and 'cc'
4241                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
4242                 # link with shared libs).
4243                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
4244                 case "$host_os" in
4245                 (osf4*)
4246                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
4247                         ;;
4248                 esac
4249                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
4250                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
4251                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
4252                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4253                 fi
4254                 cf_cv_rm_so_locs=yes
4255                 ;;
4256         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
4257                 # tested with osr5.0.5
4258                 if test "$GCC" != yes; then
4259                         CC_SHARED_OPTS='-belf -KPIC'
4260                 fi
4261                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
4262                 if test "$cf_cv_enable_rpath" = yes ; then
4263                         # only way is to set LD_RUN_PATH but no switch for it
4264                         RUN_PATH=$libdir
4265                 fi
4266                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4267                 LINK_PROGS='LD_RUN_PATH=${libdir}'
4268                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
4269                 ;;
4270         (sunos4*)
4271                 # tested with SunOS 4.1.1 and gcc 2.7.0
4272                 if test "$GCC" != yes; then
4273                         CC_SHARED_OPTS='-KPIC'
4274                 fi
4275                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
4276                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
4277                 ;;
4278         (solaris2*)
4279                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
4280                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
4281                 if test "$DFT_LWR_MODEL" = "shared" ; then
4282                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
4283                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
4284                 fi
4285                 if test "$cf_cv_enable_rpath" = yes ; then
4286                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
4287                 fi
4288                 CF_SHARED_SONAME
4289                 if test "$GCC" != yes; then
4290                         cf_save_CFLAGS="$CFLAGS"
4291                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
4292                         do
4293                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
4294                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\\n");],[break])
4295                         done
4296                         CFLAGS="$cf_save_CFLAGS"
4297                         CC_SHARED_OPTS=$cf_shared_opts
4298                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4299                 else
4300                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
4301                 fi
4302                 ;;
4303         (sysv5uw7*|unix_sv*)
4304                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
4305                 if test "$GCC" != yes; then
4306                         CC_SHARED_OPTS='-KPIC'
4307                 fi
4308                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
4309                 ;;
4310         (*)
4311                 CC_SHARED_OPTS='unknown'
4312                 MK_SHARED_LIB='echo unknown'
4313                 ;;
4314         esac
4315
4316         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
4317         case "$cf_cv_shlib_version" in
4318         (rel|abi)
4319                 case "$MK_SHARED_LIB" in
4320                 (*'-o $[@]')
4321                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
4322                         ;;
4323                 (*)
4324                         AC_MSG_WARN(ignored --with-shlib-version)
4325                         ;;
4326                 esac
4327                 ;;
4328         esac
4329
4330         if test -n "$cf_try_cflags"
4331         then
4332 cat > conftest.$ac_ext <<EOF
4333 #line __oline__ "${as_me:-configure}"
4334 #include <stdio.h>
4335 int main(int argc, char *argv[[]])
4336 {
4337         printf("hello\\n");
4338         return (argv[[argc-1]] == 0) ;
4339 }
4340 EOF
4341                 cf_save_CFLAGS="$CFLAGS"
4342                 for cf_opt in $cf_try_cflags
4343                 do
4344                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
4345                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
4346                         if AC_TRY_EVAL(ac_compile); then
4347                                 AC_MSG_RESULT(yes)
4348                                 cf_save_CFLAGS="$CFLAGS"
4349                         else
4350                                 AC_MSG_RESULT(no)
4351                         fi
4352                 done
4353                 CFLAGS="$cf_save_CFLAGS"
4354         fi
4355
4356
4357         # RPATH_LIST is a colon-separated list of directories
4358         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
4359         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
4360
4361         test "$cf_cv_rm_so_locs" = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
4362
4363         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
4364         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
4365
4366         AC_SUBST(CC_SHARED_OPTS)
4367         AC_SUBST(LD_RPATH_OPT)
4368         AC_SUBST(LD_SHARED_OPTS)
4369         AC_SUBST(MK_SHARED_LIB)
4370         AC_SUBST(RM_SHARED_OPTS)
4371
4372         AC_SUBST(LINK_PROGS)
4373         AC_SUBST(LINK_TESTS)
4374
4375         AC_SUBST(EXTRA_LDFLAGS)
4376         AC_SUBST(LOCAL_LDFLAGS)
4377         AC_SUBST(LOCAL_LDFLAGS2)
4378
4379         AC_SUBST(INSTALL_LIB)
4380         AC_SUBST(RPATH_LIST)
4381 ])dnl
4382 dnl ---------------------------------------------------------------------------
4383 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
4384 dnl ----------------
4385 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
4386 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
4387 dnl option.
4388 dnl
4389 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
4390 dnl If missing, use "rel".
4391 define([CF_SHARED_SONAME],
4392 [
4393         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
4394         if test "$cf_cv_shlib_version" = rel; then
4395                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
4396         else
4397                 cf_cv_shared_soname='`basename $[@]`'
4398         fi
4399 ])
4400 dnl ---------------------------------------------------------------------------
4401 dnl CF_STRIP_G_OPT version: 4 updated: 2021/01/02 09:31:20
4402 dnl --------------
4403 dnl     Remove "-g" option from the compiler options
4404 AC_DEFUN([CF_STRIP_G_OPT],
4405 [$1=`echo "${$1}" | CF__SED_TRIMBLANKS(-e 's%-g %%' -e 's%-g$%%')`])dnl
4406 dnl ---------------------------------------------------------------------------
4407 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
4408 dnl --------------
4409 dnl Construct a search-list for a nonstandard header/lib-file
4410 dnl     $1 = the variable to return as result
4411 dnl     $2 = the package name
4412 dnl     $3 = the subdirectory, e.g., bin, include or lib
4413 AC_DEFUN([CF_SUBDIR_PATH],
4414 [
4415 $1=
4416
4417 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
4418
4419 for cf_subdir_prefix in \
4420         /usr \
4421         /usr/local \
4422         /usr/pkg \
4423         /opt \
4424         /opt/local \
4425         [$]HOME
4426 do
4427         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
4428 done
4429 ])dnl
4430 dnl ---------------------------------------------------------------------------
4431 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
4432 dnl --------------
4433 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
4434 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
4435 dnl but some packagers change this, breaking various applications.
4436 AC_DEFUN([CF_TERM_HEADER],[
4437 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
4438 case "${cf_cv_ncurses_header}" in
4439 (*/ncurses.h|*/ncursesw.h)
4440         cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
4441         ;;
4442 (*)
4443         cf_term_header=term.h
4444         ;;
4445 esac
4446
4447 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
4448 do
4449 AC_TRY_COMPILE([#include <stdio.h>
4450 #include <${cf_cv_ncurses_header:-curses.h}>
4451 #include <$cf_test>
4452 ],[int x = auto_left_margin; (void)x],[
4453         cf_cv_term_header="$cf_test"],[
4454         cf_cv_term_header=unknown
4455         ])
4456         test "$cf_cv_term_header" != unknown && break
4457 done
4458 ])
4459
4460 # Set definitions to allow ifdef'ing to accommodate subdirectories
4461
4462 case "$cf_cv_term_header" in
4463 (*term.h)
4464         AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
4465         ;;
4466 esac
4467
4468 case "$cf_cv_term_header" in
4469 (ncurses/term.h)
4470         AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
4471         ;;
4472 (ncursesw/term.h)
4473         AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
4474         ;;
4475 esac
4476 ])dnl
4477 dnl ---------------------------------------------------------------------------
4478 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
4479 dnl ---------------
4480 dnl Define a top_builddir symbol, for applications that need an absolute path.
4481 AC_DEFUN([CF_TOP_BUILDDIR],
4482 [
4483 top_builddir=ifelse($1,,`pwd`,$1)
4484 AC_SUBST(top_builddir)
4485 ])dnl
4486 dnl ---------------------------------------------------------------------------
4487 dnl CF_TRY_XOPEN_SOURCE version: 3 updated: 2021/08/28 15:20:37
4488 dnl -------------------
4489 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4490 dnl can define it successfully.
4491 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4492 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4493         AC_TRY_COMPILE([
4494 #include <stdlib.h>
4495 #include <string.h>
4496 #include <sys/types.h>
4497 ],[
4498 #ifndef _XOPEN_SOURCE
4499 make an error
4500 #endif],
4501         [cf_cv_xopen_source=no],
4502         [cf_save="$CPPFLAGS"
4503          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4504          AC_TRY_COMPILE([
4505 #include <stdlib.h>
4506 #include <string.h>
4507 #include <sys/types.h>
4508 ],[
4509 #ifdef _XOPEN_SOURCE
4510 make an error
4511 #endif],
4512         [cf_cv_xopen_source=no],
4513         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4514         CPPFLAGS="$cf_save"
4515         ])
4516 ])
4517
4518 if test "$cf_cv_xopen_source" != no ; then
4519         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4520         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4521         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4522         CF_APPEND_CFLAGS($cf_temp_xopen_source)
4523 fi
4524 ])
4525 dnl ---------------------------------------------------------------------------
4526 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4527 dnl --------
4528 dnl Make an uppercase version of a variable
4529 dnl $1=uppercase($2)
4530 AC_DEFUN([CF_UPPER],
4531 [
4532 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4533 ])dnl
4534 dnl ---------------------------------------------------------------------------
4535 dnl CF_UTF8_LIB version: 9 updated: 2021/05/19 19:35:25
4536 dnl -----------
4537 dnl Check for multibyte support, and if not found, utf8 compatibility library
4538 AC_DEFUN([CF_UTF8_LIB],
4539 [
4540 AC_HAVE_HEADERS(wchar.h)
4541 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4542         cf_save_LIBS="$LIBS"
4543         AC_TRY_LINK([
4544 #include <stdlib.h>
4545 #include <stdio.h>
4546 #ifdef HAVE_WCHAR_H
4547 #include <wchar.h>
4548 #endif
4549 ],[putwc(0,0);],
4550         [cf_cv_utf8_lib=yes],
4551         [CF_FIND_LINKAGE([
4552 #include <libutf8.h>],[putwc(0,0);],utf8,
4553                 [cf_cv_utf8_lib=add-on],
4554                 [cf_cv_utf8_lib=no])
4555 ])])
4556
4557 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4558 # ncurses/ncursesw:
4559 if test "$cf_cv_utf8_lib" = "add-on" ; then
4560         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4561         CF_ADD_INCDIR($cf_cv_header_path_utf8)
4562         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4563         CF_ADD_LIBS($cf_cv_library_file_utf8)
4564 fi
4565 ])dnl
4566 dnl ---------------------------------------------------------------------------
4567 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4568 dnl ----------
4569 dnl Use AC_VERBOSE w/o the warnings
4570 AC_DEFUN([CF_VERBOSE],
4571 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
4572 CF_MSG_LOG([$1])
4573 ])dnl
4574 dnl ---------------------------------------------------------------------------
4575 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
4576 dnl ---------------
4577 dnl Check for compiler-support for weak symbols.
4578 dnl This works with "recent" gcc.
4579 AC_DEFUN([CF_WEAK_SYMBOLS],[
4580 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
4581
4582 AC_TRY_COMPILE([
4583 #include <stdio.h>],
4584 [
4585 #if defined(__GNUC__)
4586 #  if defined __USE_ISOC99
4587 #    define _cat_pragma(exp)    _Pragma(#exp)
4588 #    define _weak_pragma(exp)   _cat_pragma(weak name)
4589 #  else
4590 #    define _weak_pragma(exp)
4591 #  endif
4592 #  define _declare(name)        __extension__ extern __typeof__(name) name
4593 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
4594 #endif
4595
4596 weak_symbol(fopen);
4597 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
4598 ])
4599 ])dnl
4600 dnl ---------------------------------------------------------------------------
4601 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
4602 dnl --------------------
4603 dnl Command-line option to specify the Ada95 compiler.
4604 AC_DEFUN([CF_WITH_ADA_COMPILER],[
4605 AC_MSG_CHECKING(for ada-compiler)
4606 AC_ARG_WITH(ada-compiler,
4607         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
4608         [cf_ada_compiler=$withval],
4609         [cf_ada_compiler=gnatmake])
4610 AC_SUBST(cf_ada_compiler)
4611 AC_MSG_RESULT($cf_ada_compiler)
4612 ])dnl
4613 dnl ---------------------------------------------------------------------------
4614 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
4615 dnl -------------------
4616 dnl Command-line option to specify where Ada includes will install.
4617 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
4618 AC_MSG_CHECKING(for ada-include)
4619 CF_WITH_PATH(ada-include,
4620    [  --with-ada-include=DIR  Ada includes are in DIR],
4621    ADA_INCLUDE,
4622    PREFIX/share/ada/adainclude,
4623    [$]prefix/share/ada/adainclude)
4624 AC_SUBST(ADA_INCLUDE)
4625 AC_MSG_RESULT($ADA_INCLUDE)
4626 ])dnl
4627 dnl ---------------------------------------------------------------------------
4628 dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
4629 dnl -------------------
4630 dnl CF_WITH_ADA_LIBNAME
4631 dnl -------------------
4632 dnl Command-line option to specify how to name the resulting Ada library.
4633 dnl $1 = default value
4634 AC_DEFUN([CF_WITH_ADA_LIBNAME],[
4635 AC_MSG_CHECKING(for ada-libname)
4636 AC_ARG_WITH(ada-libname,
4637    [  --with-ada-libname=XXX  override default Ada library-name],
4638    ADA_LIBNAME=[$]withval,
4639    ADA_LIBNAME=$1)
4640 case "x$ADA_LIBNAME" in
4641 (x|xyes|xno)
4642         ADA_LIBNAME=$1
4643         ;;
4644 esac
4645 AC_SUBST(ADA_LIBNAME)
4646 AC_MSG_RESULT($ADA_LIBNAME)
4647 ])dnl
4648 dnl ---------------------------------------------------------------------------
4649 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
4650 dnl -------------------
4651 dnl Command-line option to specify where Ada objects will install.
4652 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
4653 AC_MSG_CHECKING(for ada-objects)
4654 CF_WITH_PATH(ada-objects,
4655    [  --with-ada-objects=DIR  Ada objects are in DIR],
4656    ADA_OBJECTS,
4657    PREFIX/lib/ada/adalib,
4658    [$]prefix/lib/ada/adalib)
4659 AC_SUBST(ADA_OBJECTS)
4660 AC_MSG_RESULT($ADA_OBJECTS)
4661 ])dnl
4662 dnl ---------------------------------------------------------------------------
4663 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
4664 dnl ---------------------
4665 dnl Command-line option to specify if an Ada95 shared-library should be built,
4666 dnl and optionally what its soname should be.
4667 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
4668 AC_REQUIRE([CF_GNAT_PROJECTS])
4669 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
4670 AC_ARG_WITH(ada-sharedlib,
4671         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
4672         [with_ada_sharedlib=$withval],
4673         [with_ada_sharedlib=no])
4674 AC_MSG_RESULT($with_ada_sharedlib)
4675
4676 if test "x$with_ada_sharedlib" != xno
4677 then
4678         if test "x$cf_gnat_projects" != xyes
4679         then
4680                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
4681                 with_ada_sharedlib=no
4682         fi
4683 fi
4684
4685 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
4686 MAKE_ADA_SHAREDLIB="#"
4687
4688 if test "x$with_ada_sharedlib" != xno
4689 then
4690         MAKE_ADA_SHAREDLIB=
4691         if test "x$with_ada_sharedlib" != xyes
4692         then
4693                 ADA_SHAREDLIB="$with_ada_sharedlib"
4694         fi
4695 fi
4696
4697 AC_SUBST(ADA_SHAREDLIB)
4698 AC_SUBST(MAKE_ADA_SHAREDLIB)
4699 ])dnl
4700 dnl ---------------------------------------------------------------------------
4701 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4702 dnl ------------------
4703 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4704 dnl libraries.
4705 AC_DEFUN([CF_WITH_CURSES_DIR],[
4706
4707 AC_MSG_CHECKING(for specific curses-directory)
4708 AC_ARG_WITH(curses-dir,
4709         [  --with-curses-dir=DIR   directory in which (n)curses is installed],
4710         [cf_cv_curses_dir=$withval],
4711         [cf_cv_curses_dir=no])
4712 AC_MSG_RESULT($cf_cv_curses_dir)
4713
4714 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4715 then
4716         CF_PATH_SYNTAX(withval)
4717         if test -d "$cf_cv_curses_dir"
4718         then
4719                 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4720                 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4721         fi
4722 fi
4723 ])dnl
4724 dnl ---------------------------------------------------------------------------
4725 dnl CF_WITH_LIB_PREFIX version: 2 updated: 2021/01/01 16:53:59
4726 dnl ------------------
4727 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
4728 dnl "lib" prefix, e.g., because it used the dll naming convention.
4729 dnl
4730 dnl $1 = variable to set
4731 AC_DEFUN([CF_WITH_LIB_PREFIX],
4732 [
4733 AC_MSG_CHECKING(if you want to have a library-prefix)
4734 AC_ARG_WITH(lib-prefix,
4735         [  --with-lib-prefix       override library-prefix],
4736         [with_lib_prefix=$withval],
4737         [with_lib_prefix=auto])
4738 AC_MSG_RESULT($with_lib_prefix)
4739
4740 if test "$with_lib_prefix" = auto
4741 then
4742         CF_LIB_PREFIX($1)
4743 elif test "$with_lib_prefix" = no
4744 then
4745         LIB_PREFIX=
4746 else
4747         LIB_PREFIX=$with_lib_prefix
4748 fi
4749 ])dnl
4750 dnl ---------------------------------------------------------------------------
4751 dnl CF_WITH_PATH version: 12 updated: 2021/09/04 06:35:04
4752 dnl ------------
4753 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4754 dnl defaulting to yes/no.
4755 dnl
4756 dnl $1 = option name
4757 dnl $2 = help-text
4758 dnl $3 = environment variable to set
4759 dnl $4 = default value, shown in the help-message, must be a constant
4760 dnl $5 = default value, if it is an expression & cannot be in the help-message
4761 dnl
4762 AC_DEFUN([CF_WITH_PATH],
4763 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4764 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4765 if ifelse([$5],,true,[test -n "$5"]) ; then
4766 CF_PATH_SYNTAX(withval)
4767 fi
4768 eval $3="$withval"
4769 AC_SUBST($3)dnl
4770 ])dnl
4771 dnl ---------------------------------------------------------------------------
4772 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 11 updated: 2021/01/01 16:16:30
4773 dnl -------------------------
4774 dnl Allow the choice of the pkg-config library directory to be overridden.
4775 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4776
4777 case "$PKG_CONFIG" in
4778 (no|none|yes)
4779         AC_MSG_CHECKING(for pkg-config library directory)
4780         ;;
4781 (*)
4782         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4783         ;;
4784 esac
4785
4786 PKG_CONFIG_LIBDIR=no
4787 AC_ARG_WITH(pkg-config-libdir,
4788         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4789         [PKG_CONFIG_LIBDIR=$withval],
4790         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
4791
4792 case x$PKG_CONFIG_LIBDIR in
4793 (x/*)
4794         ;;
4795 (xyes)
4796         # Look for the library directory using the same prefix as the executable
4797         if test "x$PKG_CONFIG" = xnone
4798         then
4799                 cf_path=$prefix
4800         else
4801                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
4802         fi
4803
4804         # If you don't like using the default architecture, you have to specify the
4805         # intended library directory and corresponding compiler/linker options.
4806         #
4807         # This case allows for Debian's 2014-flavor of multiarch, along with the
4808         # most common variations before that point.  Some other variants spell the
4809         # directory differently, e.g., "pkg-config", and put it in unusual places.
4810         # pkg-config has always been poorly standardized, which is ironic...
4811         case x`(arch) 2>/dev/null` in
4812         (*64)
4813                 cf_search_path="\
4814                         $cf_path/lib/*64-linux-gnu \
4815                         $cf_path/share \
4816                         $cf_path/lib64 \
4817                         $cf_path/lib32 \
4818                         $cf_path/lib"
4819                 ;;
4820         (*)
4821                 cf_search_path="\
4822                         $cf_path/lib/*-linux-gnu \
4823                         $cf_path/share \
4824                         $cf_path/lib32 \
4825                         $cf_path/lib \
4826                         $cf_path/libdata"
4827                 ;;
4828         esac
4829
4830         CF_VERBOSE(list...)
4831         for cf_config in $cf_search_path
4832         do
4833                 CF_VERBOSE(checking $cf_config/pkgconfig)
4834                 if test -d "$cf_config/pkgconfig"
4835                 then
4836                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
4837                         AC_MSG_CHECKING(done)
4838                         break
4839                 fi
4840         done
4841         ;;
4842 (*)
4843         ;;
4844 esac
4845
4846 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
4847         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4848 fi
4849
4850 AC_SUBST(PKG_CONFIG_LIBDIR)
4851 ])dnl
4852 dnl ---------------------------------------------------------------------------
4853 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
4854 dnl ---------------
4855 dnl Check for POSIX thread library.
4856 AC_DEFUN([CF_WITH_PTHREAD],
4857 [
4858 AC_MSG_CHECKING(if you want to link with the pthread library)
4859 AC_ARG_WITH(pthread,
4860         [  --with-pthread          use POSIX thread library],
4861         [with_pthread=$withval],
4862         [with_pthread=no])
4863 AC_MSG_RESULT($with_pthread)
4864
4865 if test "$with_pthread" != no ; then
4866         AC_CHECK_HEADER(pthread.h,[
4867         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
4868
4869         for cf_lib_pthread in pthread c_r
4870         do
4871             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
4872             cf_save_LIBS="$LIBS"
4873             CF_ADD_LIB($cf_lib_pthread)
4874             AC_TRY_LINK([
4875 #include <pthread.h>
4876 ],[
4877                 int rc = pthread_create(0,0,0,0);
4878                 int r2 = pthread_mutexattr_settype(0, 0);
4879 ],[with_pthread=yes],[with_pthread=no])
4880             LIBS="$cf_save_LIBS"
4881             AC_MSG_RESULT($with_pthread)
4882             test "$with_pthread" = yes && break
4883         done
4884
4885         if test "$with_pthread" = yes ; then
4886             CF_ADD_LIB($cf_lib_pthread)
4887             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
4888         else
4889             AC_MSG_ERROR(Cannot link with pthread library)
4890         fi
4891         ])
4892 fi
4893 ])
4894 dnl ---------------------------------------------------------------------------
4895 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
4896 dnl ---------------
4897 dnl For testing, override the derived host system-type which is used to decide
4898 dnl things such as the linker commands used to build shared libraries.  This is
4899 dnl normally chosen automatically based on the type of system which you are
4900 dnl building on.  We use it for testing the configure script.
4901 dnl
4902 dnl This is different from the --host option: it is used only for testing parts
4903 dnl of the configure script which would not be reachable with --host since that
4904 dnl relies on the build environment being real, rather than mocked up.
4905 AC_DEFUN([CF_WITH_SYSTYPE],[
4906 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
4907 AC_ARG_WITH(system-type,
4908         [  --with-system-type=XXX  test: override derived host system-type],
4909 [AC_MSG_WARN(overriding system type to $withval)
4910         cf_cv_system_name=$withval
4911         host_os=$withval
4912 ])
4913 ])dnl
4914 dnl ---------------------------------------------------------------------------
4915 dnl CF_XOPEN_SOURCE version: 59 updated: 2021/08/28 15:20:37
4916 dnl ---------------
4917 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4918 dnl or adapt to the vendor's definitions to get equivalent functionality,
4919 dnl without losing the common non-POSIX features.
4920 dnl
4921 dnl Parameters:
4922 dnl     $1 is the nominal value for _XOPEN_SOURCE
4923 dnl     $2 is the nominal value for _POSIX_C_SOURCE
4924 AC_DEFUN([CF_XOPEN_SOURCE],[
4925 AC_REQUIRE([AC_CANONICAL_HOST])
4926 AC_REQUIRE([CF_POSIX_VISIBLE])
4927
4928 if test "$cf_cv_posix_visible" = no; then
4929
4930 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4931 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4932 cf_xopen_source=
4933
4934 case "$host_os" in
4935 (aix[[4-7]]*)
4936         cf_xopen_source="-D_ALL_SOURCE"
4937         ;;
4938 (msys)
4939         cf_XOPEN_SOURCE=600
4940         ;;
4941 (darwin[[0-8]].*)
4942         cf_xopen_source="-D_APPLE_C_SOURCE"
4943         ;;
4944 (darwin*)
4945         cf_xopen_source="-D_DARWIN_C_SOURCE"
4946         cf_XOPEN_SOURCE=
4947         ;;
4948 (freebsd*|dragonfly*|midnightbsd*)
4949         # 5.x headers associate
4950         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4951         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4952         cf_POSIX_C_SOURCE=200112L
4953         cf_XOPEN_SOURCE=600
4954         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4955         ;;
4956 (hpux11*)
4957         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4958         ;;
4959 (hpux*)
4960         cf_xopen_source="-D_HPUX_SOURCE"
4961         ;;
4962 (irix[[56]].*)
4963         cf_xopen_source="-D_SGI_SOURCE"
4964         cf_XOPEN_SOURCE=
4965         ;;
4966 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4967         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4968         ;;
4969 (minix*)
4970         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4971         ;;
4972 (mirbsd*)
4973         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4974         cf_XOPEN_SOURCE=
4975         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4976         ;;
4977 (netbsd*)
4978         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4979         ;;
4980 (openbsd[[6-9]]*)
4981         # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4982         # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4983         # Abusing the conformance level is a workaround.
4984         AC_MSG_WARN(this system does not provide usable locale support)
4985         cf_xopen_source="-D_BSD_SOURCE"
4986         cf_XOPEN_SOURCE=700
4987         ;;
4988 (openbsd[[4-5]]*)
4989         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4990         cf_xopen_source="-D_BSD_SOURCE"
4991         cf_XOPEN_SOURCE=600
4992         ;;
4993 (openbsd*)
4994         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4995         ;;
4996 (osf[[45]]*)
4997         cf_xopen_source="-D_OSF_SOURCE"
4998         ;;
4999 (nto-qnx*)
5000         cf_xopen_source="-D_QNX_SOURCE"
5001         ;;
5002 (sco*)
5003         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
5004         ;;
5005 (solaris2.*)
5006         cf_xopen_source="-D__EXTENSIONS__"
5007         cf_cv_xopen_source=broken
5008         ;;
5009 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
5010         cf_XOPEN_SOURCE=
5011         cf_POSIX_C_SOURCE=
5012         ;;
5013 (*)
5014         CF_TRY_XOPEN_SOURCE
5015         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
5016         ;;
5017 esac
5018
5019 if test -n "$cf_xopen_source" ; then
5020         CF_APPEND_CFLAGS($cf_xopen_source,true)
5021 fi
5022
5023 dnl In anything but the default case, we may have system-specific setting
5024 dnl which is still not guaranteed to provide all of the entrypoints that
5025 dnl _XOPEN_SOURCE would yield.
5026 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
5027         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
5028         AC_TRY_COMPILE([#include <stdlib.h>],[
5029 #ifndef _XOPEN_SOURCE
5030 make an error
5031 #endif],
5032         [cf_XOPEN_SOURCE_set=yes],
5033         [cf_XOPEN_SOURCE_set=no])
5034         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
5035         if test "$cf_XOPEN_SOURCE_set" = yes
5036         then
5037                 AC_TRY_COMPILE([#include <stdlib.h>],[
5038 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
5039 make an error
5040 #endif],
5041                 [cf_XOPEN_SOURCE_set_ok=yes],
5042                 [cf_XOPEN_SOURCE_set_ok=no])
5043                 if test "$cf_XOPEN_SOURCE_set_ok" = no
5044                 then
5045                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
5046                 fi
5047         else
5048                 CF_TRY_XOPEN_SOURCE
5049         fi
5050 fi
5051 fi # cf_cv_posix_visible
5052 ])
5053 dnl ---------------------------------------------------------------------------
5054 dnl CF__SED_TRIMBLANKS version: 1 updated: 2021/01/02 09:31:20
5055 dnl ------------------
5056 dnl Trim something using sed, then trim extra whitespace
5057 dnl $1 = extra parameters, e.g., in CF_STRIP_G_OPT
5058 define([CF__SED_TRIMBLANKS],[sed ifelse($1,,,[$1] )-e 's%[[     ]]% %g' -e 's% [[ ]]*% %g' -e 's%^ %%' -e 's% [$]%%'])dnl