Ada95/aclocal.m4

   1 dnl***************************************************************************
   2 dnl Copyright (c) 2010-2017,2018 Free Software Foundation, Inc.              *
   3 dnl                                                                          *
   4 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
   5 dnl copy of this software and associated documentation files (the            *
   6 dnl "Software"), to deal in the Software without restriction, including      *
   7 dnl without limitation the rights to use, copy, modify, merge, publish,      *
   8 dnl distribute, distribute with modifications, sublicense, and/or sell       *
   9 dnl copies of the Software, and to permit persons to whom the Software is    *
  10 dnl furnished to do so, subject to the following conditions:                 *
  11 dnl                                                                          *
  12 dnl The above copyright notice and this permission notice shall be included  *
  13 dnl in all copies or substantial portions of the Software.                   *
  14 dnl                                                                          *
  15 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22 dnl                                                                          *
  23 dnl Except as contained in this notice, the name(s) of the above copyright   *
  24 dnl holders shall not be used in advertising or otherwise to promote the     *
  25 dnl sale, use or other dealings in this Software without prior written       *
  26 dnl authorization.                                                           *
  27 dnl***************************************************************************
  28 dnl
  29 dnl Author: Thomas E. Dickey
  30 dnl
  31 dnl $Id: aclocal.m4,v 1.131 2018/01/16 21:49:43 tom Exp $
  32 dnl Macros used in NCURSES Ada95 auto-configuration script.
  33 dnl
  34 dnl These macros are maintained separately from NCURSES.  The copyright on
  35 dnl this file applies to the aggregation of macros and does not affect use of
  36 dnl these macros in other applications.
  37 dnl
  38 dnl See https://invisible-island.net/autoconf/ for additional information.
  39 dnl
  40 dnl ---------------------------------------------------------------------------
  41 dnl ---------------------------------------------------------------------------
  42 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
  43 dnl ------------------
  44 dnl Conditionally generate script according to whether we're using a given autoconf.
  45 dnl
  46 dnl $1 = version to compare against
  47 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
  48 dnl $3 = code to use if AC_ACVERSION is older than $1.
  49 define([CF_ACVERSION_CHECK],
  50 [
  51 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
  52 ifdef([m4_version_compare],
  53 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
  54 [CF_ACVERSION_COMPARE(
  55 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
  56 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
  57 dnl ---------------------------------------------------------------------------
  58 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
  59 dnl --------------------
  60 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
  61 dnl                      MAJOR2, MINOR2, TERNARY2,
  62 dnl                      PRINTABLE2, not FOUND, FOUND)
  63 define([CF_ACVERSION_COMPARE],
  64 [ifelse(builtin([eval], [$2 < $5]), 1,
  65 [ifelse([$8], , ,[$8])],
  66 [ifelse([$9], , ,[$9])])])dnl
  67 dnl ---------------------------------------------------------------------------
  68 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
  69 dnl -------------------
  70 dnl Construct the list of include-options for the C programs in the Ada95
  71 dnl binding.
  72 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
  73 [
  74 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
  75 if test "$srcdir" != "."; then
  76         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
  77 fi
  78 if test "$GCC" != yes; then
  79         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  80 elif test "$includedir" != "/usr/include"; then
  81         if test "$includedir" = '${prefix}/include' ; then
  82                 if test x$prefix != x/usr ; then
  83                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  84                 fi
  85         else
  86                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
  87         fi
  88 fi
  89 AC_SUBST(ACPPFLAGS)
  90 ])dnl
  91 dnl ---------------------------------------------------------------------------
  92 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
  93 dnl ---------------
  94 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
  95 AC_DEFUN([CF_ADD_ADAFLAGS],[
  96         ADAFLAGS="$ADAFLAGS $1"
  97         AC_SUBST(ADAFLAGS)
  98 ])dnl
  99 dnl ---------------------------------------------------------------------------
 100 dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
 101 dnl -------------
 102 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 103 dnl The second parameter if given makes this macro verbose.
 104 dnl
 105 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
 106 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
 107 dnl confused by the quotes (which require backslashes to keep them usable).
 108 AC_DEFUN([CF_ADD_CFLAGS],
 109 [
 110 cf_fix_cppflags=no
 111 cf_new_cflags=
 112 cf_new_cppflags=
 113 cf_new_extra_cppflags=
 114
 115 for cf_add_cflags in $1
 116 do
 117 case $cf_fix_cppflags in
 118 (no)
 119         case $cf_add_cflags in
 120         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 121                 case $cf_add_cflags in
 122                 (-D*)
 123                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 124
 125                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 126                                 && test -z "${cf_tst_cflags}" \
 127                                 && cf_fix_cppflags=yes
 128
 129                         if test $cf_fix_cppflags = yes ; then
 130                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 131                                 continue
 132                         elif test "${cf_tst_cflags}" = "\"'" ; then
 133                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 134                                 continue
 135                         fi
 136                         ;;
 137                 esac
 138                 case "$CPPFLAGS" in
 139                 (*$cf_add_cflags)
 140                         ;;
 141                 (*)
 142                         case $cf_add_cflags in
 143                         (-D*)
 144                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 145                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 146                                 ;;
 147                         esac
 148                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 149                         ;;
 150                 esac
 151                 ;;
 152         (*)
 153                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 154                 ;;
 155         esac
 156         ;;
 157 (yes)
 158         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 159
 160         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
 161
 162         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 163                 && test -z "${cf_tst_cflags}" \
 164                 && cf_fix_cppflags=no
 165         ;;
 166 esac
 167 done
 168
 169 if test -n "$cf_new_cflags" ; then
 170         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
 171         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 172 fi
 173
 174 if test -n "$cf_new_cppflags" ; then
 175         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
 176         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 177 fi
 178
 179 if test -n "$cf_new_extra_cppflags" ; then
 180         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
 181         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 182 fi
 183
 184 AC_SUBST(EXTRA_CPPFLAGS)
 185
 186 ])dnl
 187 dnl ---------------------------------------------------------------------------
 188 dnl CF_ADD_INCDIR version: 14 updated: 2015/05/25 20:53:04
 189 dnl -------------
 190 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 191 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
 192 dnl but old versions (and some misinstalled ones) need that.  To make things
 193 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
 194 dnl the include-path).
 195 AC_DEFUN([CF_ADD_INCDIR],
 196 [
 197 if test -n "$1" ; then
 198   for cf_add_incdir in $1
 199   do
 200         while test $cf_add_incdir != /usr/include
 201         do
 202           if test -d $cf_add_incdir
 203           then
 204                 cf_have_incdir=no
 205                 if test -n "$CFLAGS$CPPFLAGS" ; then
 206                   # a loop is needed to ensure we can add subdirs of existing dirs
 207                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
 208                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
 209                           cf_have_incdir=yes; break
 210                         fi
 211                   done
 212                 fi
 213
 214                 if test "$cf_have_incdir" = no ; then
 215                   if test "$cf_add_incdir" = /usr/local/include ; then
 216                         if test "$GCC" = yes
 217                         then
 218                           cf_save_CPPFLAGS=$CPPFLAGS
 219                           CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
 220                           AC_TRY_COMPILE([#include <stdio.h>],
 221                                   [printf("Hello")],
 222                                   [],
 223                                   [cf_have_incdir=yes])
 224                           CPPFLAGS=$cf_save_CPPFLAGS
 225                         fi
 226                   fi
 227                 fi
 228
 229                 if test "$cf_have_incdir" = no ; then
 230                   CF_VERBOSE(adding $cf_add_incdir to include-path)
 231                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 232
 233                   cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
 234                   test "$cf_top_incdir" = "$cf_add_incdir" && break
 235                   cf_add_incdir="$cf_top_incdir"
 236                 else
 237                   break
 238                 fi
 239           else
 240                 break
 241           fi
 242         done
 243   done
 244 fi
 245 ])dnl
 246 dnl ---------------------------------------------------------------------------
 247 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
 248 dnl ----------
 249 dnl Add a library, used to enforce consistency.
 250 dnl
 251 dnl $1 = library to add, without the "-l"
 252 dnl $2 = variable to update (default $LIBS)
 253 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 254 dnl ---------------------------------------------------------------------------
 255 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
 256 dnl -------------
 257 dnl     Adds to the library-path
 258 dnl
 259 dnl     Some machines have trouble with multiple -L options.
 260 dnl
 261 dnl $1 is the (list of) directory(s) to add
 262 dnl $2 is the optional name of the variable to update (default LDFLAGS)
 263 dnl
 264 AC_DEFUN([CF_ADD_LIBDIR],
 265 [
 266 if test -n "$1" ; then
 267         for cf_add_libdir in $1
 268         do
 269                 if test $cf_add_libdir = /usr/lib ; then
 270                         :
 271                 elif test -d $cf_add_libdir
 272                 then
 273                         cf_have_libdir=no
 274                         if test -n "$LDFLAGS$LIBS" ; then
 275                                 # a loop is needed to ensure we can add subdirs of existing dirs
 276                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
 277                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
 278                                                 cf_have_libdir=yes; break
 279                                         fi
 280                                 done
 281                         fi
 282                         if test "$cf_have_libdir" = no ; then
 283                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
 284                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
 285                         fi
 286                 fi
 287         done
 288 fi
 289 ])dnl
 290 dnl ---------------------------------------------------------------------------
 291 dnl CF_ADD_LIBS version: 2 updated: 2014/07/13 14:33:27
 292 dnl -----------
 293 dnl Add one or more libraries, used to enforce consistency.  Libraries are
 294 dnl prepended to an existing list, since their dependencies are assumed to
 295 dnl already exist in the list.
 296 dnl
 297 dnl $1 = libraries to add, with the "-l", etc.
 298 dnl $2 = variable to update (default $LIBS)
 299 AC_DEFUN([CF_ADD_LIBS],[
 300 cf_add_libs="$1"
 301 # Filter out duplicates - this happens with badly-designed ".pc" files...
 302 for cf_add_1lib in [$]ifelse($2,,LIBS,[$2])
 303 do
 304         for cf_add_2lib in $cf_add_libs
 305         do
 306                 if test "x$cf_add_1lib" = "x$cf_add_2lib"
 307                 then
 308                         cf_add_1lib=
 309                         break
 310                 fi
 311         done
 312         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_libs $cf_add_1lib"
 313 done
 314 ifelse($2,,LIBS,[$2])="$cf_add_libs"
 315 ])dnl
 316 dnl ---------------------------------------------------------------------------
 317 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
 318 dnl ------------------
 319 dnl Append to a search-list for a nonstandard header/lib-file
 320 dnl     $1 = the variable to return as result
 321 dnl     $2 = the package name
 322 dnl     $3 = the subdirectory, e.g., bin, include or lib
 323 dnl $4 = the directory under which we will test for subdirectories
 324 dnl $5 = a directory that we do not want $4 to match
 325 AC_DEFUN([CF_ADD_SUBDIR_PATH],
 326 [
 327 test "x$4" != "x$5" && \
 328 test -d "$4" && \
 329 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
 330         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
 331         test -d $4/$3 &&          $1="[$]$1 $4/$3"
 332         test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
 333         test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
 334         test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
 335         test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
 336 }
 337 ])dnl
 338 dnl ---------------------------------------------------------------------------
 339 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
 340 dnl --------------
 341 dnl use this macro for appending text without introducing an extra blank at
 342 dnl the beginning
 343 define([CF_APPEND_TEXT],
 344 [
 345         test -n "[$]$1" && $1="[$]$1 "
 346         $1="[$]{$1}$2"
 347 ])dnl
 348 dnl ---------------------------------------------------------------------------
 349 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 350 dnl --------------
 351 dnl Allow user to disable a normally-on option.
 352 AC_DEFUN([CF_ARG_DISABLE],
 353 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 354 dnl ---------------------------------------------------------------------------
 355 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 356 dnl -------------
 357 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 358 dnl values.
 359 dnl
 360 dnl Parameters:
 361 dnl $1 = option name
 362 dnl $2 = help-string
 363 dnl $3 = action to perform if option is not default
 364 dnl $4 = action if perform if option is default
 365 dnl $5 = default option value (either 'yes' or 'no')
 366 AC_DEFUN([CF_ARG_OPTION],
 367 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
 368         if test "$enableval" != "$5" ; then
 369 ifelse([$3],,[    :]dnl
 370 ,[    $3]) ifelse([$4],,,[
 371         else
 372                 $4])
 373         fi],[enableval=$5 ifelse([$4],,,[
 374         $4
 375 ])dnl
 376 ])])dnl
 377 dnl ---------------------------------------------------------------------------
 378 dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
 379 dnl -----------
 380 dnl Check for suitable "ar" (archiver) options for updating an archive.
 381 dnl
 382 dnl In particular, handle some obsolete cases where the "-" might be omitted,
 383 dnl as well as a workaround for breakage of make's archive rules by the GNU
 384 dnl binutils "ar" program.
 385 AC_DEFUN([CF_AR_FLAGS],[
 386 AC_REQUIRE([CF_PROG_AR])
 387
 388 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 389         cf_cv_ar_flags=unknown
 390         for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 391         do
 392
 393                 # check if $ARFLAGS already contains this choice
 394                 if test "x$ARFLAGS" != "x" ; then
 395                         cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
 396                         if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
 397                                 cf_cv_ar_flags=
 398                                 break
 399                         fi
 400                 fi
 401
 402                 rm -f conftest.$ac_cv_objext
 403                 rm -f conftest.a
 404
 405                 cat >conftest.$ac_ext <<EOF
 406 #line __oline__ "configure"
 407 int     testdata[[3]] = { 123, 456, 789 };
 408 EOF
 409                 if AC_TRY_EVAL(ac_compile) ; then
 410                         echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
 411                         $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
 412                         if test -f conftest.a ; then
 413                                 cf_cv_ar_flags=$cf_ar_flags
 414                                 break
 415                         fi
 416                 else
 417                         CF_VERBOSE(cannot compile test-program)
 418                         break
 419                 fi
 420         done
 421         rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
 422 ])
 423
 424 if test -n "$ARFLAGS" ; then
 425         if test -n "$cf_cv_ar_flags" ; then
 426                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
 427         fi
 428 else
 429         ARFLAGS=$cf_cv_ar_flags
 430 fi
 431
 432 AC_SUBST(ARFLAGS)
 433 ])
 434 dnl ---------------------------------------------------------------------------
 435 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
 436 dnl -----------
 437 dnl If we're cross-compiling, allow the user to override the tools and their
 438 dnl options.  The configure script is oriented toward identifying the host
 439 dnl compiler, etc., but we need a build compiler to generate parts of the
 440 dnl source.
 441 dnl
 442 dnl $1 = default for $CPPFLAGS
 443 dnl $2 = default for $LIBS
 444 AC_DEFUN([CF_BUILD_CC],[
 445 CF_ACVERSION_CHECK(2.52,,
 446         [AC_REQUIRE([CF_PROG_EXT])])
 447 if test "$cross_compiling" = yes ; then
 448
 449         # defaults that we might want to override
 450         : ${BUILD_CFLAGS:=''}
 451         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
 452         : ${BUILD_LDFLAGS:=''}
 453         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
 454         : ${BUILD_EXEEXT:='$x'}
 455         : ${BUILD_OBJEXT:='o'}
 456
 457         AC_ARG_WITH(build-cc,
 458                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 459                 [BUILD_CC="$withval"],
 460                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 461         AC_MSG_CHECKING(for native build C compiler)
 462         AC_MSG_RESULT($BUILD_CC)
 463
 464         AC_MSG_CHECKING(for native build C preprocessor)
 465         AC_ARG_WITH(build-cpp,
 466                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
 467                 [BUILD_CPP="$withval"],
 468                 [BUILD_CPP='${BUILD_CC} -E'])
 469         AC_MSG_RESULT($BUILD_CPP)
 470
 471         AC_MSG_CHECKING(for native build C flags)
 472         AC_ARG_WITH(build-cflags,
 473                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
 474                 [BUILD_CFLAGS="$withval"])
 475         AC_MSG_RESULT($BUILD_CFLAGS)
 476
 477         AC_MSG_CHECKING(for native build C preprocessor-flags)
 478         AC_ARG_WITH(build-cppflags,
 479                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
 480                 [BUILD_CPPFLAGS="$withval"])
 481         AC_MSG_RESULT($BUILD_CPPFLAGS)
 482
 483         AC_MSG_CHECKING(for native build linker-flags)
 484         AC_ARG_WITH(build-ldflags,
 485                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
 486                 [BUILD_LDFLAGS="$withval"])
 487         AC_MSG_RESULT($BUILD_LDFLAGS)
 488
 489         AC_MSG_CHECKING(for native build linker-libraries)
 490         AC_ARG_WITH(build-libs,
 491                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
 492                 [BUILD_LIBS="$withval"])
 493         AC_MSG_RESULT($BUILD_LIBS)
 494
 495         # this assumes we're on Unix.
 496         BUILD_EXEEXT=
 497         BUILD_OBJEXT=o
 498
 499         : ${BUILD_CC:='${CC}'}
 500
 501         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
 502                 AC_MSG_ERROR([Cross-build requires two compilers.
 503 Use --with-build-cc to specify the native compiler.])
 504         fi
 505
 506 else
 507         : ${BUILD_CC:='${CC}'}
 508         : ${BUILD_CPP:='${CPP}'}
 509         : ${BUILD_CFLAGS:='${CFLAGS}'}
 510         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
 511         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
 512         : ${BUILD_LIBS:='${LIBS}'}
 513         : ${BUILD_EXEEXT:='$x'}
 514         : ${BUILD_OBJEXT:='o'}
 515 fi
 516
 517 AC_SUBST(BUILD_CC)
 518 AC_SUBST(BUILD_CPP)
 519 AC_SUBST(BUILD_CFLAGS)
 520 AC_SUBST(BUILD_CPPFLAGS)
 521 AC_SUBST(BUILD_LDFLAGS)
 522 AC_SUBST(BUILD_LIBS)
 523 AC_SUBST(BUILD_EXEEXT)
 524 AC_SUBST(BUILD_OBJEXT)
 525 ])dnl
 526 dnl ---------------------------------------------------------------------------
 527 dnl CF_CC_ENV_FLAGS version: 8 updated: 2017/09/23 08:50:24
 528 dnl ---------------
 529 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
 530 dnl into CC.  This will not help with broken scripts that wrap the compiler
 531 dnl with options, but eliminates a more common category of user confusion.
 532 dnl
 533 dnl In particular, it addresses the problem of being able to run the C
 534 dnl preprocessor in a consistent manner.
 535 dnl
 536 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
 537 dnl the nuisance of having inconsistent settings for compiler and preprocessor
 538 dnl outweighs that limitation.
 539 AC_DEFUN([CF_CC_ENV_FLAGS],
 540 [
 541 # This should have been defined by AC_PROG_CC
 542 : ${CC:=cc}
 543
 544 AC_MSG_CHECKING(\$CC variable)
 545 case "$CC" in
 546 (*[[\ \ ]]-*)
 547         AC_MSG_RESULT(broken)
 548         AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
 549         # humor him...
 550         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 551         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 552         CC="$cf_prog"
 553         for cf_arg in $cf_flags
 554         do
 555                 case "x$cf_arg" in
 556                 (x-[[IUDfgOW]]*)
 557                         CF_ADD_CFLAGS($cf_arg)
 558                         ;;
 559                 (*)
 560                         CC="$CC $cf_arg"
 561                         ;;
 562                 esac
 563         done
 564         CF_VERBOSE(resulting CC: '$CC')
 565         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 566         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 567         ;;
 568 (*)
 569         AC_MSG_RESULT(ok)
 570         ;;
 571 esac
 572 ])dnl
 573 dnl ---------------------------------------------------------------------------
 574 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
 575 dnl ---------------
 576 dnl Determine the default configuration into which we'll install ncurses.  This
 577 dnl can be overridden by the user's command-line options.  There's two items to
 578 dnl look for:
 579 dnl     1. the prefix (e.g., /usr)
 580 dnl     2. the header files (e.g., /usr/include/ncurses)
 581 dnl We'll look for a previous installation of ncurses and use the same defaults.
 582 dnl
 583 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 584 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 585 dnl programs from a vendor's.
 586 AC_DEFUN([CF_CFG_DEFAULTS],
 587 [
 588 AC_MSG_CHECKING(for prefix)
 589 if test "x$prefix" = "xNONE" ; then
 590         case "$cf_cv_system_name" in
 591                 # non-vendor systems don't have a conflict
 592         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 593                 prefix=/usr
 594                 ;;
 595         (*)     prefix=$ac_default_prefix
 596                 ;;
 597         esac
 598 fi
 599 AC_MSG_RESULT($prefix)
 600
 601 if test "x$prefix" = "xNONE" ; then
 602 AC_MSG_CHECKING(for default include-directory)
 603 test -n "$verbose" && echo 1>&AC_FD_MSG
 604 for cf_symbol in \
 605         $includedir \
 606         $includedir/ncurses \
 607         $prefix/include \
 608         $prefix/include/ncurses \
 609         /usr/local/include \
 610         /usr/local/include/ncurses \
 611         /usr/include \
 612         /usr/include/ncurses
 613 do
 614         cf_dir=`eval echo $cf_symbol`
 615         if test -f $cf_dir/curses.h ; then
 616         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
 617                 includedir="$cf_symbol"
 618                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
 619                 break
 620         fi
 621         fi
 622         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 623 done
 624 AC_MSG_RESULT($includedir)
 625 fi
 626 ])dnl
 627 dnl ---------------------------------------------------------------------------
 628 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
 629 dnl --------------
 630 dnl Check if we're accidentally using a cache from a different machine.
 631 dnl Derive the system name, as a check for reusing the autoconf cache.
 632 dnl
 633 dnl If we've packaged config.guess and config.sub, run that (since it does a
 634 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 635 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 636 dnl which is useful in cross-compiles.
 637 dnl
 638 dnl Note: we would use $ac_config_sub, but that is one of the places where
 639 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 640 AC_DEFUN([CF_CHECK_CACHE],
 641 [
 642 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
 643         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 644         system_name="$host_os"
 645 else
 646         system_name="`(uname -s -r) 2>/dev/null`"
 647         if test -z "$system_name" ; then
 648                 system_name="`(hostname) 2>/dev/null`"
 649         fi
 650 fi
 651 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 652 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 653
 654 test -z "$system_name" && system_name="$cf_cv_system_name"
 655 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 656
 657 if test ".$system_name" != ".$cf_cv_system_name" ; then
 658         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 659         AC_MSG_ERROR("Please remove config.cache and try again.")
 660 fi
 661 ])dnl
 662 dnl ---------------------------------------------------------------------------
 663 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
 664 dnl -----------------
 665 dnl Check if the given compiler is really clang.  clang's C driver defines
 666 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
 667 dnl not ignore some gcc options.
 668 dnl
 669 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
 670 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
 671 dnl the wrappers for gcc and g++ warnings.
 672 dnl
 673 dnl $1 = GCC (default) or GXX
 674 dnl $2 = CLANG_COMPILER (default)
 675 dnl $3 = CFLAGS (default) or CXXFLAGS
 676 AC_DEFUN([CF_CLANG_COMPILER],[
 677 ifelse([$2],,CLANG_COMPILER,[$2])=no
 678
 679 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 680         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
 681         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
 682         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
 683         AC_TRY_COMPILE([],[
 684 #ifdef __clang__
 685 #else
 686 make an error
 687 #endif
 688 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
 689 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
 690 ],[])
 691         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
 692         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
 693 fi
 694 ])
 695 dnl ---------------------------------------------------------------------------
 696 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
 697 dnl ----------------
 698 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 699 dnl variations of ncurses' installs.
 700 dnl
 701 dnl $1 = ncurses when looking for ncurses, or is empty
 702 AC_DEFUN([CF_CURSES_HEADER],[
 703 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
 704 cf_cv_ncurses_header=none
 705 for cf_header in \
 706         ncurses.h ifelse($1,,,[$1/ncurses.h]) \
 707         curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
 708 do
 709 AC_TRY_COMPILE([#include <${cf_header}>],
 710         [initscr(); tgoto("?", 0,0)],
 711         [cf_cv_ncurses_header=$cf_header; break],[])
 712 done
 713 ])
 714
 715 if test "$cf_cv_ncurses_header" = none ; then
 716         AC_MSG_ERROR(No curses header-files found)
 717 fi
 718
 719 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
 720 AC_CHECK_HEADERS($cf_cv_ncurses_header)
 721 ])dnl
 722 dnl ---------------------------------------------------------------------------
 723 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
 724 dnl ----------
 725 dnl "dirname" is not portable, so we fake it with a shell script.
 726 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
 727 dnl ---------------------------------------------------------------------------
 728 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
 729 dnl ---------------
 730 dnl You can always use "make -n" to see the actual options, but it's hard to
 731 dnl pick out/analyze warning messages when the compile-line is long.
 732 dnl
 733 dnl Sets:
 734 dnl     ECHO_LT - symbol to control if libtool is verbose
 735 dnl     ECHO_LD - symbol to prefix "cc -o" lines
 736 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
 737 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
 738 dnl     ECHO_CC - symbol to put before any "cc" line
 739 dnl
 740 AC_DEFUN([CF_DISABLE_ECHO],[
 741 AC_MSG_CHECKING(if you want to see long compiling messages)
 742 CF_ARG_DISABLE(echo,
 743         [  --disable-echo          do not display "compiling" commands],
 744         [
 745         ECHO_LT='--silent'
 746         ECHO_LD='@echo linking [$]@;'
 747         RULE_CC='@echo compiling [$]<'
 748         SHOW_CC='@echo compiling [$]@'
 749         ECHO_CC='@'
 750 ],[
 751         ECHO_LT=''
 752         ECHO_LD=''
 753         RULE_CC=''
 754         SHOW_CC=''
 755         ECHO_CC=''
 756 ])
 757 AC_MSG_RESULT($enableval)
 758 AC_SUBST(ECHO_LT)
 759 AC_SUBST(ECHO_LD)
 760 AC_SUBST(RULE_CC)
 761 AC_SUBST(SHOW_CC)
 762 AC_SUBST(ECHO_CC)
 763 ])dnl
 764 dnl ---------------------------------------------------------------------------
 765 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
 766 dnl ------------------------
 767 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
 768 AC_MSG_CHECKING(if we want to use GNAT projects)
 769 CF_ARG_DISABLE(gnat-projects,
 770         [  --disable-gnat-projects test: disable GNAT projects even if usable],
 771         [enable_gnat_projects=no],
 772         [enable_gnat_projects=yes])
 773 AC_MSG_RESULT($enable_gnat_projects)
 774 ])dnl
 775 dnl ---------------------------------------------------------------------------
 776 dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54
 777 dnl ---------------
 778 dnl Look for a non-standard library, given parameters for AC_TRY_LINK.  We
 779 dnl prefer a standard location, and use -L options only if we do not find the
 780 dnl library in the standard library location(s).
 781 dnl     $1 = library name
 782 dnl     $2 = library class, usually the same as library name
 783 dnl     $3 = includes
 784 dnl     $4 = code fragment to compile/link
 785 dnl     $5 = corresponding function-name
 786 dnl     $6 = flag, nonnull if failure should not cause an error-exit
 787 dnl
 788 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
 789 dnl to use a -L option.
 790 AC_DEFUN([CF_FIND_LIBRARY],
 791 [
 792         eval 'cf_cv_have_lib_'$1'=no'
 793         cf_libdir=""
 794         AC_CHECK_FUNC($5,
 795                 eval 'cf_cv_have_lib_'$1'=yes',[
 796                 cf_save_LIBS="$LIBS"
 797                 AC_MSG_CHECKING(for $5 in -l$1)
 798                 LIBS="-l$1 $LIBS"
 799                 AC_TRY_LINK([$3],[$4],
 800                         [AC_MSG_RESULT(yes)
 801                          eval 'cf_cv_have_lib_'$1'=yes'
 802                         ],
 803                         [AC_MSG_RESULT(no)
 804                         CF_LIBRARY_PATH(cf_search,$2)
 805                         for cf_libdir in $cf_search
 806                         do
 807                                 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
 808                                 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
 809                                 AC_TRY_LINK([$3],[$4],
 810                                         [AC_MSG_RESULT(yes)
 811                                          eval 'cf_cv_have_lib_'$1'=yes'
 812                                          break],
 813                                         [AC_MSG_RESULT(no)
 814                                          LIBS="$cf_save_LIBS"])
 815                         done
 816                         ])
 817                 ])
 818 eval 'cf_found_library=[$]cf_cv_have_lib_'$1
 819 ifelse($6,,[
 820 if test $cf_found_library = no ; then
 821         AC_MSG_ERROR(Cannot link $1 library)
 822 fi
 823 ])
 824 ])dnl
 825 dnl ---------------------------------------------------------------------------
 826 dnl CF_FIND_LINKAGE version: 20 updated: 2015/04/18 08:56:57
 827 dnl ---------------
 828 dnl Find a library (specifically the linkage used in the code fragment),
 829 dnl searching for it if it is not already in the library path.
 830 dnl See also CF_ADD_SEARCHPATH.
 831 dnl
 832 dnl Parameters (4-on are optional):
 833 dnl     $1 = headers for library entrypoint
 834 dnl     $2 = code fragment for library entrypoint
 835 dnl     $3 = the library name without the "-l" option or ".so" suffix.
 836 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
 837 dnl     $5 = action to perform if not successful
 838 dnl     $6 = module name, if not the same as the library name
 839 dnl     $7 = extra libraries
 840 dnl
 841 dnl Sets these variables:
 842 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
 843 dnl     $cf_cv_header_path_$3 - include-directory if needed
 844 dnl     $cf_cv_library_path_$3 - library-directory if needed
 845 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
 846 AC_DEFUN([CF_FIND_LINKAGE],[
 847
 848 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
 849 # will be set on completion of the AC_TRY_LINK below.
 850 cf_cv_header_path_$3=
 851 cf_cv_library_path_$3=
 852
 853 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
 854
 855 cf_save_LIBS="$LIBS"
 856
 857 AC_TRY_LINK([$1],[$2],[
 858         cf_cv_find_linkage_$3=yes
 859         cf_cv_header_path_$3=/usr/include
 860         cf_cv_library_path_$3=/usr/lib
 861 ],[
 862
 863 LIBS="-l$3 $7 $cf_save_LIBS"
 864
 865 AC_TRY_LINK([$1],[$2],[
 866         cf_cv_find_linkage_$3=yes
 867         cf_cv_header_path_$3=/usr/include
 868         cf_cv_library_path_$3=/usr/lib
 869         cf_cv_library_file_$3="-l$3"
 870 ],[
 871         cf_cv_find_linkage_$3=no
 872         LIBS="$cf_save_LIBS"
 873
 874         CF_VERBOSE(find linkage for $3 library)
 875         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
 876
 877         cf_save_CPPFLAGS="$CPPFLAGS"
 878         cf_test_CPPFLAGS="$CPPFLAGS"
 879
 880         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
 881         for cf_cv_header_path_$3 in $cf_search
 882         do
 883                 if test -d $cf_cv_header_path_$3 ; then
 884                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
 885                         CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
 886                         AC_TRY_COMPILE([$1],[$2],[
 887                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
 888                                 cf_cv_find_linkage_$3=maybe
 889                                 cf_test_CPPFLAGS="$CPPFLAGS"
 890                                 break],[
 891                                 CPPFLAGS="$cf_save_CPPFLAGS"
 892                                 ])
 893                 fi
 894         done
 895
 896         if test "$cf_cv_find_linkage_$3" = maybe ; then
 897
 898                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
 899
 900                 cf_save_LIBS="$LIBS"
 901                 cf_save_LDFLAGS="$LDFLAGS"
 902
 903                 ifelse([$6],,,[
 904                 CPPFLAGS="$cf_test_CPPFLAGS"
 905                 LIBS="-l$3 $7 $cf_save_LIBS"
 906                 AC_TRY_LINK([$1],[$2],[
 907                         CF_VERBOSE(... found $3 library in system)
 908                         cf_cv_find_linkage_$3=yes])
 909                         CPPFLAGS="$cf_save_CPPFLAGS"
 910                         LIBS="$cf_save_LIBS"
 911                         ])
 912
 913                 if test "$cf_cv_find_linkage_$3" != yes ; then
 914                         CF_LIBRARY_PATH(cf_search,$3)
 915                         for cf_cv_library_path_$3 in $cf_search
 916                         do
 917                                 if test -d $cf_cv_library_path_$3 ; then
 918                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
 919                                         CPPFLAGS="$cf_test_CPPFLAGS"
 920                                         LIBS="-l$3 $7 $cf_save_LIBS"
 921                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
 922                                         AC_TRY_LINK([$1],[$2],[
 923                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
 924                                         cf_cv_find_linkage_$3=yes
 925                                         cf_cv_library_file_$3="-l$3"
 926                                         break],[
 927                                         CPPFLAGS="$cf_save_CPPFLAGS"
 928                                         LIBS="$cf_save_LIBS"
 929                                         LDFLAGS="$cf_save_LDFLAGS"
 930                                         ])
 931                                 fi
 932                         done
 933                         CPPFLAGS="$cf_save_CPPFLAGS"
 934                         LDFLAGS="$cf_save_LDFLAGS"
 935                 fi
 936
 937         else
 938                 cf_cv_find_linkage_$3=no
 939         fi
 940         ],$7)
 941 ])
 942
 943 LIBS="$cf_save_LIBS"
 944
 945 if test "$cf_cv_find_linkage_$3" = yes ; then
 946 ifelse([$4],,[
 947         CF_ADD_INCDIR($cf_cv_header_path_$3)
 948         CF_ADD_LIBDIR($cf_cv_library_path_$3)
 949         CF_ADD_LIB($3)
 950 ],[$4])
 951 else
 952 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
 953 fi
 954 ])dnl
 955 dnl ---------------------------------------------------------------------------
 956 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
 957 dnl -----------------
 958 dnl make ADAFLAGS consistent with CFLAGS
 959 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
 960         AC_MSG_CHECKING(optimization options for ADAFLAGS)
 961         case "$CFLAGS" in
 962         (*-g*)
 963                 CF_ADD_ADAFLAGS(-g)
 964                 ;;
 965         esac
 966         case "$CFLAGS" in
 967         (*-O*)
 968                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
 969                 CF_ADD_ADAFLAGS($cf_O_flag)
 970                 ;;
 971         esac
 972         AC_MSG_RESULT($ADAFLAGS)
 973 ])dnl
 974 dnl ---------------------------------------------------------------------------
 975 dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
 976 dnl -----------------
 977 dnl Test for availability of useful gcc __attribute__ directives to quiet
 978 dnl compiler warnings.  Though useful, not all are supported -- and contrary
 979 dnl to documentation, unrecognized directives cause older compilers to barf.
 980 AC_DEFUN([CF_GCC_ATTRIBUTES],
 981 [
 982 if test "$GCC" = yes
 983 then
 984 cat > conftest.i <<EOF
 985 #ifndef GCC_PRINTF
 986 #define GCC_PRINTF 0
 987 #endif
 988 #ifndef GCC_SCANF
 989 #define GCC_SCANF 0
 990 #endif
 991 #ifndef GCC_NORETURN
 992 #define GCC_NORETURN /* nothing */
 993 #endif
 994 #ifndef GCC_UNUSED
 995 #define GCC_UNUSED /* nothing */
 996 #endif
 997 EOF
 998 if test "$GCC" = yes
 999 then
1000         AC_CHECKING([for $CC __attribute__ directives])
1001 cat > conftest.$ac_ext <<EOF
1002 #line __oline__ "${as_me:-configure}"
1003 #include "confdefs.h"
1004 #include "conftest.h"
1005 #include "conftest.i"
1006 #if     GCC_PRINTF
1007 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1008 #else
1009 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1010 #endif
1011 #if     GCC_SCANF
1012 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
1013 #else
1014 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
1015 #endif
1016 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1017 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
1018 extern void foo(void) GCC_NORETURN;
1019 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
1020 EOF
1021         cf_printf_attribute=no
1022         cf_scanf_attribute=no
1023         for cf_attribute in scanf printf unused noreturn
1024         do
1025                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1026                 cf_directive="__attribute__(($cf_attribute))"
1027                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1028
1029                 case $cf_attribute in
1030                 (printf)
1031                         cf_printf_attribute=yes
1032                         cat >conftest.h <<EOF
1033 #define GCC_$cf_ATTRIBUTE 1
1034 EOF
1035                         ;;
1036                 (scanf)
1037                         cf_scanf_attribute=yes
1038                         cat >conftest.h <<EOF
1039 #define GCC_$cf_ATTRIBUTE 1
1040 EOF
1041                         ;;
1042                 (*)
1043                         cat >conftest.h <<EOF
1044 #define GCC_$cf_ATTRIBUTE $cf_directive
1045 EOF
1046                         ;;
1047                 esac
1048
1049                 if AC_TRY_EVAL(ac_compile); then
1050                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1051                         cat conftest.h >>confdefs.h
1052                         case $cf_attribute in
1053                         (noreturn)
1054                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1055                                 ;;
1056                         (printf)
1057                                 cf_value='/* nothing */'
1058                                 if test "$cf_printf_attribute" != no ; then
1059                                         cf_value='__attribute__((format(printf,fmt,var)))'
1060                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1061                                 fi
1062                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1063                                 ;;
1064                         (scanf)
1065                                 cf_value='/* nothing */'
1066                                 if test "$cf_scanf_attribute" != no ; then
1067                                         cf_value='__attribute__((format(scanf,fmt,var)))'
1068                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1069                                 fi
1070                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1071                                 ;;
1072                         (unused)
1073                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1074                                 ;;
1075                         esac
1076                 fi
1077         done
1078 else
1079         fgrep define conftest.i >>confdefs.h
1080 fi
1081 rm -rf conftest*
1082 fi
1083 ])dnl
1084 dnl ---------------------------------------------------------------------------
1085 dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
1086 dnl --------------
1087 dnl Find version of gcc
1088 AC_DEFUN([CF_GCC_VERSION],[
1089 AC_REQUIRE([AC_PROG_CC])
1090 GCC_VERSION=none
1091 if test "$GCC" = yes ; then
1092         AC_MSG_CHECKING(version of $CC)
1093         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1094         test -z "$GCC_VERSION" && GCC_VERSION=unknown
1095         AC_MSG_RESULT($GCC_VERSION)
1096 fi
1097 ])dnl
1098 dnl ---------------------------------------------------------------------------
1099 dnl CF_GCC_WARNINGS version: 32 updated: 2015/04/12 15:39:00
1100 dnl ---------------
1101 dnl Check if the compiler supports useful warning options.  There's a few that
1102 dnl we don't use, simply because they're too noisy:
1103 dnl
1104 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1105 dnl     -Wredundant-decls (system headers make this too noisy)
1106 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
1107 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
1108 dnl             is enabled for ncurses using "--enable-const".
1109 dnl     -pedantic
1110 dnl
1111 dnl Parameter:
1112 dnl     $1 is an optional list of gcc warning flags that a particular
1113 dnl             application might want to use, e.g., "no-unused" for
1114 dnl             -Wno-unused
1115 dnl Special:
1116 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
1117 dnl
1118 AC_DEFUN([CF_GCC_WARNINGS],
1119 [
1120 AC_REQUIRE([CF_GCC_VERSION])
1121 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1122 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1123
1124 cat > conftest.$ac_ext <<EOF
1125 #line __oline__ "${as_me:-configure}"
1126 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1127 EOF
1128
1129 if test "$INTEL_COMPILER" = yes
1130 then
1131 # The "-wdXXX" options suppress warnings:
1132 # remark #1419: external declaration in primary source file
1133 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1134 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1135 # remark #193: zero used for undefined preprocessing identifier
1136 # remark #593: variable "curs_sb_left_arrow" was set but never used
1137 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1138 # remark #869: parameter "tw" was never referenced
1139 # remark #981: operands are evaluated in unspecified order
1140 # warning #279: controlling expression is constant
1141
1142         AC_CHECKING([for $CC warning options])
1143         cf_save_CFLAGS="$CFLAGS"
1144         EXTRA_CFLAGS="-Wall"
1145         for cf_opt in \
1146                 wd1419 \
1147                 wd1683 \
1148                 wd1684 \
1149                 wd193 \
1150                 wd593 \
1151                 wd279 \
1152                 wd810 \
1153                 wd869 \
1154                 wd981
1155         do
1156                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1157                 if AC_TRY_EVAL(ac_compile); then
1158                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1159                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1160                 fi
1161         done
1162         CFLAGS="$cf_save_CFLAGS"
1163
1164 elif test "$GCC" = yes
1165 then
1166         AC_CHECKING([for $CC warning options])
1167         cf_save_CFLAGS="$CFLAGS"
1168         EXTRA_CFLAGS=
1169         cf_warn_CONST=""
1170         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1171         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1172         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1173         for cf_opt in W Wall \
1174                 Wbad-function-cast \
1175                 Wcast-align \
1176                 Wcast-qual \
1177                 Wdeclaration-after-statement \
1178                 Wextra \
1179                 Winline \
1180                 Wmissing-declarations \
1181                 Wmissing-prototypes \
1182                 Wnested-externs \
1183                 Wpointer-arith \
1184                 Wshadow \
1185                 Wstrict-prototypes \
1186                 Wundef $cf_gcc_warnings $cf_warn_CONST $1
1187         do
1188                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1189                 if AC_TRY_EVAL(ac_compile); then
1190                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1191                         case $cf_opt in
1192                         (Wcast-qual)
1193                                 CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
1194                                 ;;
1195                         (Winline)
1196                                 case $GCC_VERSION in
1197                                 ([[34]].*)
1198                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1199                                         continue;;
1200                                 esac
1201                                 ;;
1202                         (Wpointer-arith)
1203                                 case $GCC_VERSION in
1204                                 ([[12]].*)
1205                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1206                                         continue;;
1207                                 esac
1208                                 ;;
1209                         esac
1210                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1211                 fi
1212         done
1213         CFLAGS="$cf_save_CFLAGS"
1214 fi
1215 rm -rf conftest*
1216
1217 AC_SUBST(EXTRA_CFLAGS)
1218 ])dnl
1219 dnl ---------------------------------------------------------------------------
1220 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1221 dnl -----------------
1222 AC_DEFUN([CF_GNATPREP_OPT_T],[
1223 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1224 cf_cv_gnatprep_opt_t=no
1225 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1226 ])
1227 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1228 AC_SUBST(GNATPREP_OPTS)
1229 ])dnl
1230 dnl ---------------------------------------------------------------------------
1231 dnl CF_GNAT_GENERICS version: 3 updated: 2015/04/17 21:13:04
1232 dnl ----------------
1233 AC_DEFUN([CF_GNAT_GENERICS],
1234 [
1235 AC_REQUIRE([CF_GNAT_VERSION])
1236
1237 AC_MSG_CHECKING(if GNAT supports generics)
1238 case $cf_gnat_version in
1239 (3.[[1-9]]*|[[4-9]].*)
1240         cf_gnat_generics=yes
1241         ;;
1242 (*)
1243         cf_gnat_generics=no
1244         ;;
1245 esac
1246 AC_MSG_RESULT($cf_gnat_generics)
1247
1248 if test "$cf_gnat_generics" = yes
1249 then
1250         cf_compile_generics=generics
1251         cf_generic_objects="\${GENOBJS}"
1252 else
1253         cf_compile_generics=
1254         cf_generic_objects=
1255 fi
1256
1257 AC_SUBST(cf_compile_generics)
1258 AC_SUBST(cf_generic_objects)
1259 ])dnl
1260 dnl ---------------------------------------------------------------------------
1261 dnl CF_GNAT_PROJECTS version: 9 updated: 2018/01/14 15:46:09
1262 dnl ----------------
1263 dnl GNAT projects are configured with ".gpr" project files.
1264 dnl GNAT libraries are a further development, using the project feature.
1265 AC_DEFUN([CF_GNAT_PROJECTS],
1266 [
1267 AC_REQUIRE([CF_GNAT_VERSION])
1268 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1269
1270 cf_gnat_libraries=no
1271 cf_gnat_projects=no
1272
1273 if test "$enable_gnat_projects" != no ; then
1274 AC_MSG_CHECKING(if GNAT supports project files)
1275 case $cf_gnat_version in
1276 (3.[[0-9]]*)
1277         ;;
1278 (*)
1279         case $cf_cv_system_name in
1280         (cygwin*|msys*)
1281                 ;;
1282         (*)
1283                 rm -rf conftest* *~conftest*
1284                 if mkdir conftest.src conftest.bin conftest.lib
1285                 then
1286                         cd conftest.src
1287                         rm -rf conftest* *~conftest*
1288                         cat >>library.gpr <<CF_EOF
1289 project Library is
1290   Kind := External ("LIB_KIND");
1291   for Library_Name use "ConfTest";
1292   for Object_Dir use ".";
1293   for Library_ALI_Dir use External("LIBRARY_DIR");
1294   for Library_Version use External ("SONAME");
1295   for Library_Kind use Kind;
1296   for Library_Dir use External("BUILD_DIR");
1297   Source_Dir := External ("SOURCE_DIR");
1298   for Source_Dirs use (Source_Dir);
1299 end Library;
1300 CF_EOF
1301                         cat >>confpackage.ads <<CF_EOF
1302 package ConfPackage is
1303    procedure conftest;
1304 end ConfPackage;
1305 CF_EOF
1306                         cat >>confpackage.adb <<CF_EOF
1307 with Text_IO;
1308 package body ConfPackage is
1309    procedure conftest is
1310    begin
1311       Text_IO.Put ("Hello World");
1312       Text_IO.New_Line;
1313    end conftest;
1314 end ConfPackage;
1315 CF_EOF
1316                         if ( $cf_ada_make $ADAFLAGS \
1317                                         -Plibrary.gpr \
1318                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
1319                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
1320                                         -XSOURCE_DIR=`pwd` \
1321                                         -XSONAME=libConfTest.so.1 \
1322                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1323                                 cf_gnat_projects=yes
1324                         fi
1325                         cd ..
1326                 fi
1327                 if test -f conftest.lib/confpackage.ali
1328                 then
1329                         cf_gnat_libraries=yes
1330                 fi
1331                 rm -rf conftest* *~conftest*
1332                 ;;
1333         esac
1334         ;;
1335 esac
1336 AC_MSG_RESULT($cf_gnat_projects)
1337 fi # enable_gnat_projects
1338
1339 if test $cf_gnat_projects = yes
1340 then
1341         AC_MSG_CHECKING(if GNAT supports libraries)
1342         AC_MSG_RESULT($cf_gnat_libraries)
1343 fi
1344
1345 if test "$cf_gnat_projects" = yes
1346 then
1347         USE_OLD_MAKERULES="#"
1348         USE_GNAT_PROJECTS=""
1349 else
1350         USE_OLD_MAKERULES=""
1351         USE_GNAT_PROJECTS="#"
1352 fi
1353
1354 if test "$cf_gnat_libraries" = yes
1355 then
1356         USE_GNAT_LIBRARIES=""
1357 else
1358         USE_GNAT_LIBRARIES="#"
1359 fi
1360
1361 AC_SUBST(USE_OLD_MAKERULES)
1362 AC_SUBST(USE_GNAT_PROJECTS)
1363 AC_SUBST(USE_GNAT_LIBRARIES)
1364 ])dnl
1365 dnl ---------------------------------------------------------------------------
1366 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
1367 dnl --------------
1368 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
1369 dnl is noted that gnat may compile a tasking unit even for configurations which
1370 dnl fail at runtime.
1371 AC_DEFUN([CF_GNAT_SIGINT],[
1372 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1373 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1374
1375 package ConfTest is
1376
1377    pragma Warnings (Off);  --  the next pragma exists since 3.11p
1378    pragma Unreserve_All_Interrupts;
1379    pragma Warnings (On);
1380
1381    protected Process is
1382       procedure Stop;
1383       function Continue return Boolean;
1384       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1385    private
1386       Done : Boolean := False;
1387    end Process;
1388
1389 end ConfTest;],
1390 [package body ConfTest is
1391    protected body Process is
1392       procedure Stop is
1393       begin
1394          Done := True;
1395       end Stop;
1396       function Continue return Boolean is
1397       begin
1398          return not Done;
1399       end Continue;
1400    end Process;
1401 end ConfTest;],
1402         [cf_cv_gnat_sigint=yes],
1403         [cf_cv_gnat_sigint=no])])
1404
1405 if test $cf_cv_gnat_sigint = yes ; then
1406         USE_GNAT_SIGINT=""
1407 else
1408         USE_GNAT_SIGINT="#"
1409 fi
1410 AC_SUBST(USE_GNAT_SIGINT)
1411 ])dnl
1412 dnl ---------------------------------------------------------------------------
1413 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
1414 dnl ----------------
1415 dnl Verify that a test program compiles/links with GNAT.
1416 dnl $cf_ada_make is set to the program that compiles/links
1417 dnl $ADAFLAGS may be set to the GNAT flags.
1418 dnl
1419 dnl $1 is the text of the spec
1420 dnl $2 is the text of the body
1421 dnl $3 is the shell command to execute if successful
1422 dnl $4 is the shell command to execute if not successful
1423 AC_DEFUN([CF_GNAT_TRY_LINK],
1424 [
1425 rm -rf conftest* *~conftest*
1426 cat >>conftest.ads <<CF_EOF
1427 $1
1428 CF_EOF
1429 cat >>conftest.adb <<CF_EOF
1430 $2
1431 CF_EOF
1432 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1433 ifelse($3,,      :,[      $3])
1434 ifelse($4,,,[else
1435    $4])
1436 fi
1437 rm -rf conftest* *~conftest*
1438 ])dnl
1439 dnl ---------------------------------------------------------------------------
1440 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
1441 dnl ---------------
1442 dnl Verify that a test program compiles and runs with GNAT
1443 dnl $cf_ada_make is set to the program that compiles/links
1444 dnl $ADAFLAGS may be set to the GNAT flags.
1445 dnl
1446 dnl $1 is the text of the spec
1447 dnl $2 is the text of the body
1448 dnl $3 is the shell command to execute if successful
1449 dnl $4 is the shell command to execute if not successful
1450 AC_DEFUN([CF_GNAT_TRY_RUN],
1451 [
1452 rm -rf conftest* *~conftest*
1453 cat >>conftest.ads <<CF_EOF
1454 $1
1455 CF_EOF
1456 cat >>conftest.adb <<CF_EOF
1457 $2
1458 CF_EOF
1459 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1460    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1461 ifelse($3,,      :,[      $3])
1462 ifelse($4,,,[   else
1463       $4])
1464    fi
1465 ifelse($4,,,[else
1466    $4])
1467 fi
1468 rm -rf conftest* *~conftest*
1469 ])dnl
1470 dnl ---------------------------------------------------------------------------
1471 dnl CF_GNAT_VERSION version: 20 updated: 2015/04/18 08:56:57
1472 dnl ---------------
1473 dnl Verify version of GNAT.
1474 AC_DEFUN([CF_GNAT_VERSION],
1475 [
1476 AC_MSG_CHECKING(for gnat version)
1477 cf_gnat_version=`${cf_ada_make:-gnatmake} -v 2>&1 | \
1478         grep '[[0-9]].[[0-9]][[0-9]]*' |\
1479         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1480 AC_MSG_RESULT($cf_gnat_version)
1481
1482 case $cf_gnat_version in
1483 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
1484         cf_cv_prog_gnat_correct=yes
1485         ;;
1486 (*)
1487         AC_MSG_WARN(Unsupported GNAT version $cf_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1488         cf_cv_prog_gnat_correct=no
1489         ;;
1490 esac
1491 ])
1492 dnl ---------------------------------------------------------------------------
1493 dnl CF_GNU_SOURCE version: 7 updated: 2016/08/05 05:15:37
1494 dnl -------------
1495 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1496 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
1497 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1498 dnl since it is interwoven with GNU extensions.
1499 dnl
1500 dnl Well, yes we could work around it...
1501 AC_DEFUN([CF_GNU_SOURCE],
1502 [
1503 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1504 AC_TRY_COMPILE([#include <sys/types.h>],[
1505 #ifndef _XOPEN_SOURCE
1506 make an error
1507 #endif],
1508         [cf_cv_gnu_source=no],
1509         [cf_save="$CPPFLAGS"
1510          CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
1511          AC_TRY_COMPILE([#include <sys/types.h>],[
1512 #ifdef _XOPEN_SOURCE
1513 make an error
1514 #endif],
1515         [cf_cv_gnu_source=no],
1516         [cf_cv_gnu_source=yes])
1517         CPPFLAGS="$cf_save"
1518         ])
1519 ])
1520
1521 if test "$cf_cv_gnu_source" = yes
1522 then
1523 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
1524 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
1525         AC_TRY_COMPILE([#include <sys/types.h>],[
1526 #ifdef _DEFAULT_SOURCE
1527 make an error
1528 #endif],
1529                 [cf_cv_default_source=no],
1530                 [cf_cv_default_source=yes])
1531         ])
1532 test "$cf_cv_default_source" = yes && CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE"
1533 fi
1534 ])dnl
1535 dnl ---------------------------------------------------------------------------
1536 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
1537 dnl --------------
1538 dnl Construct a search-list of directories for a nonstandard header-file
1539 dnl
1540 dnl Parameters
1541 dnl     $1 = the variable to return as result
1542 dnl     $2 = the package name
1543 AC_DEFUN([CF_HEADER_PATH],
1544 [
1545 $1=
1546
1547 # collect the current set of include-directories from compiler flags
1548 cf_header_path_list=""
1549 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1550         for cf_header_path in $CPPFLAGS $CFLAGS
1551         do
1552                 case $cf_header_path in
1553                 (-I*)
1554                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1555                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1556                         cf_header_path_list="$cf_header_path_list [$]$1"
1557                         ;;
1558                 esac
1559         done
1560 fi
1561
1562 # add the variations for the package we are looking for
1563 CF_SUBDIR_PATH($1,$2,include)
1564
1565 test "$includedir" != NONE && \
1566 test "$includedir" != "/usr/include" && \
1567 test -d "$includedir" && {
1568         test -d $includedir &&    $1="[$]$1 $includedir"
1569         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
1570 }
1571
1572 test "$oldincludedir" != NONE && \
1573 test "$oldincludedir" != "/usr/include" && \
1574 test -d "$oldincludedir" && {
1575         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
1576         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
1577 }
1578
1579 $1="[$]$1 $cf_header_path_list"
1580 ])dnl
1581 dnl ---------------------------------------------------------------------------
1582 dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
1583 dnl ---------------
1584 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
1585 AC_DEFUN([CF_HELP_MESSAGE],
1586 [AC_DIVERT_HELP([$1])dnl
1587 ])dnl
1588 dnl ---------------------------------------------------------------------------
1589 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
1590 dnl ---------------
1591 dnl Construct the list of include-options according to whether we're building
1592 dnl in the source directory or using '--srcdir=DIR' option.
1593 AC_DEFUN([CF_INCLUDE_DIRS],
1594 [
1595 if test "$srcdir" != "."; then
1596         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
1597 fi
1598 CPPFLAGS="-I../include $CPPFLAGS"
1599 if test "$srcdir" != "."; then
1600         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
1601 fi
1602 CPPFLAGS="-I. $CPPFLAGS"
1603 AC_SUBST(CPPFLAGS)
1604 ])dnl
1605 dnl ---------------------------------------------------------------------------
1606 dnl CF_INSTALL_OPTS version: 1 updated: 2014/07/21 18:19:51
1607 dnl ---------------
1608 dnl prompt for/fill-in useful install-program options
1609 AC_DEFUN([CF_INSTALL_OPTS],
1610 [
1611 CF_INSTALL_OPT_S
1612 CF_INSTALL_OPT_O
1613 ])dnl
1614 dnl ---------------------------------------------------------------------------
1615 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
1616 dnl ----------------
1617 dnl Almost all "install" programs default to the current user's ownership.
1618 dnl Almost - MINIX is an exception.
1619 AC_DEFUN([CF_INSTALL_OPT_O],
1620 [
1621 AC_MSG_CHECKING(if install needs to be told about ownership)
1622 case `$ac_config_guess` in
1623 (*minix)
1624         with_install_o=yes
1625         ;;
1626 (*)
1627         with_install_o=no
1628         ;;
1629 esac
1630
1631 AC_MSG_RESULT($with_install_o)
1632 if test "x$with_install_o" = xyes
1633 then
1634         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'`
1635 else
1636         INSTALL_OPT_O=
1637 fi
1638
1639 AC_SUBST(INSTALL_OPT_O)
1640 ])dnl
1641 dnl ---------------------------------------------------------------------------
1642 dnl CF_INSTALL_OPT_S version: 1 updated: 2014/07/21 18:19:51
1643 dnl ----------------
1644 dnl By default, we should strip executables which are installed, but leave the
1645 dnl ability to suppress that for unit-testing.
1646 AC_DEFUN([CF_INSTALL_OPT_S],
1647 [
1648 AC_MSG_CHECKING(if you want to install stripped executables)
1649 CF_ARG_DISABLE(stripping,
1650         [  --disable-stripping     do not strip installed executables],
1651         [with_stripping=no],
1652         [with_stripping=yes])
1653 AC_MSG_RESULT($with_stripping)
1654
1655 if test "$with_stripping" = yes
1656 then
1657         INSTALL_OPT_S="-s"
1658 else
1659         INSTALL_OPT_S=
1660 fi
1661 AC_SUBST(INSTALL_OPT_S)
1662 ])dnl
1663 dnl ---------------------------------------------------------------------------
1664 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
1665 dnl -----------------
1666 dnl Check if the given compiler is really the Intel compiler for Linux.  It
1667 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
1668 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
1669 dnl
1670 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1671 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1672 dnl the wrappers for gcc and g++ warnings.
1673 dnl
1674 dnl $1 = GCC (default) or GXX
1675 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
1676 dnl $3 = CFLAGS (default) or CXXFLAGS
1677 AC_DEFUN([CF_INTEL_COMPILER],[
1678 AC_REQUIRE([AC_CANONICAL_HOST])
1679 ifelse([$2],,INTEL_COMPILER,[$2])=no
1680
1681 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1682         case $host_os in
1683         (linux*|gnu*)
1684                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
1685                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1686                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
1687                 AC_TRY_COMPILE([],[
1688 #ifdef __INTEL_COMPILER
1689 #else
1690 make an error
1691 #endif
1692 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
1693 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
1694 ],[])
1695                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1696                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
1697                 ;;
1698         esac
1699 fi
1700 ])dnl
1701 dnl ---------------------------------------------------------------------------
1702 dnl CF_LARGEFILE version: 10 updated: 2017/01/21 11:06:25
1703 dnl ------------
1704 dnl Add checks for large file support.
1705 AC_DEFUN([CF_LARGEFILE],[
1706 ifdef([AC_FUNC_FSEEKO],[
1707         AC_SYS_LARGEFILE
1708         if test "$enable_largefile" != no ; then
1709         AC_FUNC_FSEEKO
1710
1711         # Normally we would collect these definitions in the config.h,
1712         # but (like _XOPEN_SOURCE), some environments rely on having these
1713         # defined before any of the system headers are included.  Another
1714         # case comes up with C++, e.g., on AIX the compiler compiles the
1715         # header files by themselves before looking at the body files it is
1716         # told to compile.  For ncurses, those header files do not include
1717         # the config.h
1718         test "$ac_cv_sys_large_files"      != no && CPPFLAGS="$CPPFLAGS -D_LARGE_FILES "
1719         test "$ac_cv_sys_largefile_source" != no && CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE "
1720         test "$ac_cv_sys_file_offset_bits" != no && CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits "
1721
1722         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
1723                 AC_TRY_COMPILE([
1724 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
1725 #include <sys/types.h>
1726 #include <dirent.h>
1727                 ],[
1728                 /* if transitional largefile support is setup, this is true */
1729                 extern struct dirent64 * readdir(DIR *);
1730                 struct dirent64 *x = readdir((DIR *)0);
1731                 struct dirent *y = readdir((DIR *)0);
1732                 int z = x - y;
1733                 ],
1734                 [cf_cv_struct_dirent64=yes],
1735                 [cf_cv_struct_dirent64=no])
1736         ])
1737         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
1738         fi
1739 ])
1740 ])
1741 dnl ---------------------------------------------------------------------------
1742 dnl CF_LD_RPATH_OPT version: 7 updated: 2016/02/20 18:01:19
1743 dnl ---------------
1744 dnl For the given system and compiler, find the compiler flags to pass to the
1745 dnl loader to use the "rpath" feature.
1746 AC_DEFUN([CF_LD_RPATH_OPT],
1747 [
1748 AC_REQUIRE([CF_CHECK_CACHE])
1749
1750 LD_RPATH_OPT=
1751 AC_MSG_CHECKING(for an rpath option)
1752 case $cf_cv_system_name in
1753 (irix*)
1754         if test "$GCC" = yes; then
1755                 LD_RPATH_OPT="-Wl,-rpath,"
1756         else
1757                 LD_RPATH_OPT="-rpath "
1758         fi
1759         ;;
1760 (linux*|gnu*|k*bsd*-gnu|freebsd*)
1761         LD_RPATH_OPT="-Wl,-rpath,"
1762         ;;
1763 (openbsd[[2-9]].*|mirbsd*)
1764         LD_RPATH_OPT="-Wl,-rpath,"
1765         ;;
1766 (dragonfly*)
1767         LD_RPATH_OPT="-rpath "
1768         ;;
1769 (netbsd*)
1770         LD_RPATH_OPT="-Wl,-rpath,"
1771         ;;
1772 (osf*|mls+*)
1773         LD_RPATH_OPT="-rpath "
1774         ;;
1775 (solaris2*)
1776         LD_RPATH_OPT="-R"
1777         ;;
1778 (*)
1779         ;;
1780 esac
1781 AC_MSG_RESULT($LD_RPATH_OPT)
1782
1783 case "x$LD_RPATH_OPT" in
1784 (x-R*)
1785         AC_MSG_CHECKING(if we need a space after rpath option)
1786         cf_save_LIBS="$LIBS"
1787         CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
1788         AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
1789         LIBS="$cf_save_LIBS"
1790         AC_MSG_RESULT($cf_rpath_space)
1791         test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
1792         ;;
1793 esac
1794 ])dnl
1795 dnl ---------------------------------------------------------------------------
1796 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
1797 dnl ---------------
1798 dnl Construct a search-list of directories for a nonstandard library-file
1799 dnl
1800 dnl Parameters
1801 dnl     $1 = the variable to return as result
1802 dnl     $2 = the package name
1803 AC_DEFUN([CF_LIBRARY_PATH],
1804 [
1805 $1=
1806 cf_library_path_list=""
1807 if test -n "${LDFLAGS}${LIBS}" ; then
1808         for cf_library_path in $LDFLAGS $LIBS
1809         do
1810                 case $cf_library_path in
1811                 (-L*)
1812                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
1813                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
1814                         cf_library_path_list="$cf_library_path_list [$]$1"
1815                         ;;
1816                 esac
1817         done
1818 fi
1819
1820 CF_SUBDIR_PATH($1,$2,lib)
1821
1822 $1="$cf_library_path_list [$]$1"
1823 ])dnl
1824 dnl ---------------------------------------------------------------------------
1825 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
1826 dnl -------------
1827 dnl Compute the library-prefix for the given host system
1828 dnl $1 = variable to set
1829 define([CF_LIB_PREFIX],
1830 [
1831         case $cf_cv_system_name in
1832         (OS/2*|os2*)
1833                 if test "$DFT_LWR_MODEL" = libtool; then
1834                         LIB_PREFIX='lib'
1835                 else
1836                         LIB_PREFIX=''
1837                 fi
1838                 ;;
1839         (*)     LIB_PREFIX='lib'
1840                 ;;
1841         esac
1842 ifelse($1,,,[$1=$LIB_PREFIX])
1843         AC_SUBST(LIB_PREFIX)
1844 ])dnl
1845 dnl ---------------------------------------------------------------------------
1846 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
1847 dnl -------------
1848 dnl Compute the library file-suffix from the given model name
1849 dnl $1 = model name
1850 dnl $2 = variable to set (the nominal library suffix)
1851 dnl $3 = dependency variable to set (actual filename)
1852 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
1853 AC_DEFUN([CF_LIB_SUFFIX],
1854 [
1855         case X$1 in
1856         (Xlibtool)
1857                 $2='.la'
1858                 $3=[$]$2
1859                 ;;
1860         (Xdebug)
1861                 $2='_g.a'
1862                 $3=[$]$2
1863                 ;;
1864         (Xprofile)
1865                 $2='_p.a'
1866                 $3=[$]$2
1867                 ;;
1868         (Xshared)
1869                 case $cf_cv_system_name in
1870                 (aix[[5-7]]*)
1871                         $2='.so'
1872                         $3=[$]$2
1873                         ;;
1874                 (cygwin*|msys*|mingw*)
1875                         $2='.dll'
1876                         $3='.dll.a'
1877                         ;;
1878                 (darwin*)
1879                         $2='.dylib'
1880                         $3=[$]$2
1881                         ;;
1882                 (hpux*)
1883                         case $target in
1884                         (ia64*)
1885                                 $2='.so'
1886                                 $3=[$]$2
1887                                 ;;
1888                         (*)
1889                                 $2='.sl'
1890                                 $3=[$]$2
1891                                 ;;
1892                         esac
1893                         ;;
1894                 (*)
1895                         $2='.so'
1896                         $3=[$]$2
1897                         ;;
1898                 esac
1899                 ;;
1900         (*)
1901                 $2='.a'
1902                 $3=[$]$2
1903                 ;;
1904         esac
1905         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
1906         then
1907                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
1908                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
1909         fi
1910 ])dnl
1911 dnl ---------------------------------------------------------------------------
1912 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
1913 dnl -----------
1914 dnl Compute the string to append to -library from the given model name
1915 dnl $1 = model name
1916 dnl $2 = variable to set
1917 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
1918 AC_DEFUN([CF_LIB_TYPE],
1919 [
1920         case $1 in
1921         (libtool) $2=''   ;;
1922         (normal)  $2=''   ;;
1923         (debug)   $2='_g' ;;
1924         (profile) $2='_p' ;;
1925         (shared)  $2=''   ;;
1926         esac
1927         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
1928 ])dnl
1929 dnl ---------------------------------------------------------------------------
1930 dnl CF_LINK_DATAONLY version: 12 updated: 2017/07/23 17:46:07
1931 dnl ----------------
1932 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
1933 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
1934 dnl have to provide wrappers for global tables to ensure they're linked
1935 dnl properly.
1936 AC_DEFUN([CF_LINK_DATAONLY],
1937 [
1938 AC_MSG_CHECKING([if data-only library module links])
1939 AC_CACHE_VAL(cf_cv_link_dataonly,[
1940         rm -f conftest.a
1941         cat >conftest.$ac_ext <<EOF
1942 #line __oline__ "configure"
1943 int     testdata[[3]] = { 123, 456, 789 };
1944 EOF
1945         if AC_TRY_EVAL(ac_compile) ; then
1946                 mv conftest.o data.o && \
1947                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
1948         fi
1949         rm -f conftest.$ac_ext data.o
1950         cat >conftest.$ac_ext <<EOF
1951 #line __oline__ "configure"
1952 int     testfunc(void)
1953 {
1954 #if defined(NeXT)
1955         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
1956 #else
1957         extern int testdata[[3]];
1958         return testdata[[0]] == 123
1959            &&  testdata[[1]] == 456
1960            &&  testdata[[2]] == 789;
1961 #endif
1962 }
1963 EOF
1964         if AC_TRY_EVAL(ac_compile); then
1965                 mv conftest.o func.o && \
1966                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
1967         fi
1968         rm -f conftest.$ac_ext func.o
1969         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
1970         cf_saveLIBS="$LIBS"
1971         LIBS="conftest.a $LIBS"
1972         AC_TRY_RUN([
1973         int main(void)
1974         {
1975                 extern int testfunc();
1976                 ${cf_cv_main_return:-return} (!testfunc());
1977         }
1978         ],
1979         [cf_cv_link_dataonly=yes],
1980         [cf_cv_link_dataonly=no],
1981         [cf_cv_link_dataonly=unknown])
1982         LIBS="$cf_saveLIBS"
1983         ])
1984 AC_MSG_RESULT($cf_cv_link_dataonly)
1985
1986 if test "$cf_cv_link_dataonly" = no ; then
1987         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
1988         BROKEN_LINKER=1
1989 fi
1990
1991 ])dnl
1992 dnl ---------------------------------------------------------------------------
1993 dnl CF_MAKEFLAGS version: 17 updated: 2015/08/05 20:44:28
1994 dnl ------------
1995 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
1996 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
1997 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
1998 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
1999 AC_DEFUN([CF_MAKEFLAGS],
2000 [
2001 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2002         cf_cv_makeflags=''
2003         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2004         do
2005                 cat >cf_makeflags.tmp <<CF_EOF
2006 SHELL = $SHELL
2007 all :
2008         @ echo '.$cf_option'
2009 CF_EOF
2010                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[   ]]*$,,'`
2011                 case "$cf_result" in
2012                 (.*k|.*kw)
2013                         cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
2014                         case "$cf_result" in
2015                         (.*CC=*)        cf_cv_makeflags=
2016                                 ;;
2017                         (*)     cf_cv_makeflags=$cf_option
2018                                 ;;
2019                         esac
2020                         break
2021                         ;;
2022                 (.-)    ;;
2023                 (*)     echo "given option \"$cf_option\", no match \"$cf_result\""
2024                         ;;
2025                 esac
2026         done
2027         rm -f cf_makeflags.tmp
2028 ])
2029
2030 AC_SUBST(cf_cv_makeflags)
2031 ])dnl
2032 dnl ---------------------------------------------------------------------------
2033 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2034 dnl ------------
2035 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
2036 dnl a monocase filesystem.
2037 AC_DEFUN([CF_MAKE_TAGS],[
2038 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2039
2040 AC_CHECK_PROGS(CTAGS, exctags ctags)
2041 AC_CHECK_PROGS(ETAGS, exetags etags)
2042
2043 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2044
2045 if test "$cf_cv_mixedcase" = yes ; then
2046         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2047 else
2048         MAKE_UPPER_TAGS=no
2049 fi
2050
2051 if test "$MAKE_UPPER_TAGS" = yes ; then
2052         MAKE_UPPER_TAGS=
2053 else
2054         MAKE_UPPER_TAGS="#"
2055 fi
2056
2057 if test "$MAKE_LOWER_TAGS" = yes ; then
2058         MAKE_LOWER_TAGS=
2059 else
2060         MAKE_LOWER_TAGS="#"
2061 fi
2062
2063 AC_SUBST(CTAGS)
2064 AC_SUBST(ETAGS)
2065
2066 AC_SUBST(MAKE_UPPER_TAGS)
2067 AC_SUBST(MAKE_LOWER_TAGS)
2068 ])dnl
2069 dnl ---------------------------------------------------------------------------
2070 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
2071 dnl ----------------------
2072 dnl Check if the file-system supports mixed-case filenames.  If we're able to
2073 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2074 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2075 [
2076 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2077 if test "$cross_compiling" = yes ; then
2078         case $target_alias in
2079         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
2080                 cf_cv_mixedcase=no
2081                 ;;
2082         (*)
2083                 cf_cv_mixedcase=yes
2084                 ;;
2085         esac
2086 else
2087         rm -f conftest CONFTEST
2088         echo test >conftest
2089         if test -f CONFTEST ; then
2090                 cf_cv_mixedcase=no
2091         else
2092                 cf_cv_mixedcase=yes
2093         fi
2094         rm -f conftest CONFTEST
2095 fi
2096 ])
2097 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2098 ])dnl
2099 dnl ---------------------------------------------------------------------------
2100 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
2101 dnl ----------
2102 dnl Check for a working mkstemp.  This creates two files, checks that they are
2103 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2104 AC_DEFUN([CF_MKSTEMP],[
2105 AC_CHECK_HEADERS( \
2106 unistd.h \
2107 )
2108 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2109 rm -rf conftest*
2110 AC_TRY_RUN([
2111 #include <sys/types.h>
2112 #ifdef HAVE_UNISTD_H
2113 #include <unistd.h>
2114 #endif
2115 #include <stdlib.h>
2116 #include <stdio.h>
2117 #include <string.h>
2118 #include <sys/stat.h>
2119 int main(void)
2120 {
2121         char *tmpl = "conftestXXXXXX";
2122         char name[2][80];
2123         int n;
2124         int result = 0;
2125         int fd;
2126         struct stat sb;
2127
2128         umask(077);
2129         for (n = 0; n < 2; ++n) {
2130                 strcpy(name[n], tmpl);
2131                 if ((fd = mkstemp(name[n])) >= 0) {
2132                         if (!strcmp(name[n], tmpl)
2133                          || stat(name[n], &sb) != 0
2134                          || (sb.st_mode & S_IFMT) != S_IFREG
2135                          || (sb.st_mode & 077) != 0) {
2136                                 result = 1;
2137                         }
2138                         close(fd);
2139                 }
2140         }
2141         if (result == 0
2142          && !strcmp(name[0], name[1]))
2143                 result = 1;
2144         ${cf_cv_main_return:-return}(result);
2145 }
2146 ],[cf_cv_func_mkstemp=yes
2147 ],[cf_cv_func_mkstemp=no
2148 ],[cf_cv_func_mkstemp=maybe])
2149 ])
2150 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2151         AC_CHECK_FUNC(mkstemp)
2152 fi
2153 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2154         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2155 fi
2156 ])dnl
2157 dnl ---------------------------------------------------------------------------
2158 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2159 dnl ----------
2160 dnl Write a debug message to config.log, along with the line number in the
2161 dnl configure script.
2162 AC_DEFUN([CF_MSG_LOG],[
2163 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2164 ])dnl
2165 dnl ---------------------------------------------------------------------------
2166 dnl CF_NCURSES_ADDON version: 5 updated: 2015/04/26 18:06:58
2167 dnl ----------------
2168 dnl Configure an ncurses add-on, built outside the ncurses tree.
2169 AC_DEFUN([CF_NCURSES_ADDON],[
2170 AC_REQUIRE([CF_NCURSES_CONFIG])
2171
2172 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2173
2174 AC_MSG_CHECKING(if you want wide-character code)
2175 AC_ARG_ENABLE(widec,
2176         [  --enable-widec          compile with wide-char/UTF-8 code],
2177         [with_widec=$enableval],
2178         [with_widec=no])
2179 AC_MSG_RESULT($with_widec)
2180 if test "$with_widec" = yes ; then
2181         CF_UTF8_LIB
2182         CF_NCURSES_CONFIG(ncursesw)
2183 else
2184         CF_NCURSES_CONFIG(ncurses)
2185 fi
2186
2187 if test "$NCURSES_CONFIG_PKG" != none ; then
2188         cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2189
2190         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2191         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2192         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2193
2194         cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2195         if test -z "$cf_cv_abi_version"
2196         then
2197                 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2198         fi
2199
2200 elif test "$NCURSES_CONFIG" != none ; then
2201
2202         cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2203
2204         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2205         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2206         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2207
2208         # ABI version is not available from headers
2209         cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2210
2211 else
2212
2213         for cf_name in MAJOR MINOR PATCH
2214         do
2215         cat >conftest.$ac_ext <<CF_EOF
2216         #include <${cf_cv_ncurses_header:-curses.h}>
2217         AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2218 CF_EOF
2219                 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2220                 AC_TRY_EVAL(cf_try)
2221                 if test -f conftest.out ; then
2222                         cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[  ]][[    ]]*//"`
2223                         eval NCURSES_$cf_name=\"$cf_result\"
2224                         # cat conftest.$ac_ext
2225                         # cat conftest.out
2226                 fi
2227         done
2228
2229         cf_cv_abi_version=${NCURSES_MAJOR}
2230
2231 fi
2232
2233 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2234
2235 dnl Show the computed version, for logging
2236 cf_cv_timestamp=`date`
2237
2238 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2239
2240 dnl We need these values in the generated headers
2241 AC_SUBST(NCURSES_MAJOR)
2242 AC_SUBST(NCURSES_MINOR)
2243 AC_SUBST(NCURSES_PATCH)
2244
2245 dnl We need these values in the generated makefiles
2246 AC_SUBST(cf_cv_rel_version)
2247 AC_SUBST(cf_cv_abi_version)
2248
2249 dnl FIXME - not needed for Ada95
2250 AC_SUBST(cf_cv_builtin_bool)
2251 AC_SUBST(cf_cv_header_stdbool_h)
2252 AC_SUBST(cf_cv_type_of_bool)dnl
2253
2254 ])
2255 dnl ---------------------------------------------------------------------------
2256 dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
2257 dnl -------------------
2258 dnl Check if we can compile with ncurses' header file
2259 dnl $1 is the cache variable to set
2260 dnl $2 is the header-file to include
2261 dnl $3 is the root name (ncurses or ncursesw)
2262 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2263         AC_TRY_COMPILE([
2264 ]ifelse($3,ncursesw,[
2265 #define _XOPEN_SOURCE_EXTENDED
2266 #undef  HAVE_LIBUTF8_H  /* in case we used CF_UTF8_LIB */
2267 #define HAVE_LIBUTF8_H  /* to force ncurses' header file to use cchar_t */
2268 ])[
2269 #include <$2>],[
2270 #ifdef NCURSES_VERSION
2271 ]ifelse($3,ncursesw,[
2272 #ifndef WACS_BSSB
2273         make an error
2274 #endif
2275 ])[
2276 printf("%s\n", NCURSES_VERSION);
2277 #else
2278 #ifdef __NCURSES_H
2279 printf("old\n");
2280 #else
2281         make an error
2282 #endif
2283 #endif
2284         ]
2285         ,[$1=$2]
2286         ,[$1=no])
2287 ])dnl
2288 dnl ---------------------------------------------------------------------------
2289 dnl CF_NCURSES_CONFIG version: 20 updated: 2018/01/03 04:47:33
2290 dnl -----------------
2291 dnl Tie together the configure-script macros for ncurses, preferring these in
2292 dnl order:
2293 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2294 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2295 dnl c) just plain libraries
2296 dnl
2297 dnl $1 is the root library name (default: "ncurses")
2298 AC_DEFUN([CF_NCURSES_CONFIG],[
2299 AC_REQUIRE([CF_PKG_CONFIG])
2300 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2301 cf_have_ncuconfig=no
2302
2303 if test "x${PKG_CONFIG:=none}" != xnone; then
2304         AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2305         if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2306                 AC_MSG_RESULT(yes)
2307
2308                 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2309                 cf_have_ncuconfig=unknown
2310
2311                 cf_save_CPPFLAGS="$CPPFLAGS"
2312                 cf_save_LIBS="$LIBS"
2313
2314                 CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2315                 CF_ADD_LIBS(`$PKG_CONFIG --libs $cf_ncuconfig_root`)
2316
2317                 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2318                         [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2319                         [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2320                                 int main(void)
2321                                 { char *xx = curses_version(); return (xx == 0); }],
2322                                 [cf_have_ncuconfig=yes],
2323                                 [cf_have_ncuconfig=no],
2324                                 [cf_have_ncuconfig=maybe])],
2325                         [cf_have_ncuconfig=no])
2326                 AC_MSG_RESULT($cf_have_ncuconfig)
2327                 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2328                 if test "$cf_have_ncuconfig" != "yes"
2329                 then
2330                         CPPFLAGS="$cf_save_CPPFLAGS"
2331                         LIBS="$cf_save_LIBS"
2332                         NCURSES_CONFIG_PKG=none
2333                 else
2334                         AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2335                         NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2336                         CF_TERM_HEADER
2337                 fi
2338
2339         else
2340                 AC_MSG_RESULT(no)
2341                 NCURSES_CONFIG_PKG=none
2342         fi
2343 else
2344         NCURSES_CONFIG_PKG=none
2345 fi
2346
2347 if test "x$cf_have_ncuconfig" = "xno"; then
2348         cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2349
2350         CF_ACVERSION_CHECK(2.52,
2351                 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2352                 [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2353
2354         if test "$NCURSES_CONFIG" != none ; then
2355
2356                 CPPFLAGS="$CPPFLAGS `$NCURSES_CONFIG --cflags`"
2357                 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2358
2359                 # even with config script, some packages use no-override for curses.h
2360                 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2361
2362                 dnl like CF_NCURSES_CPPFLAGS
2363                 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2364
2365                 dnl like CF_NCURSES_LIBS
2366                 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2367                 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2368
2369                 dnl like CF_NCURSES_VERSION
2370                 cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
2371
2372         else
2373
2374                 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2375                 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2376
2377         fi
2378 else
2379         NCURSES_CONFIG=none
2380 fi
2381 ])dnl
2382 dnl ---------------------------------------------------------------------------
2383 dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
2384 dnl -------------------
2385 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2386 dnl the CPPFLAGS variable so we can include its header.
2387 dnl
2388 dnl The header files may be installed as either curses.h, or ncurses.h (would
2389 dnl be obsolete, except that some packagers prefer this name to distinguish it
2390 dnl from a "native" curses implementation).  If not installed for overwrite,
2391 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2392 dnl /usr/include/ncurses), but someone may have installed overwriting the
2393 dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
2394 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2395 dnl the header.
2396 dnl
2397 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2398 dnl is already in the include-path, don't even bother with this, since we cannot
2399 dnl easily determine which file it is.  In this case, it has to be <curses.h>.
2400 dnl
2401 dnl The optional parameter gives the root name of the library, in case it is
2402 dnl not installed as the default curses library.  That is how the
2403 dnl wide-character version of ncurses is installed.
2404 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2405 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2406
2407 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2408 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2409
2410 test -n "$cf_cv_curses_dir" && \
2411 test "$cf_cv_curses_dir" != "no" && { \
2412   CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2413 }
2414
2415 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2416         cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2417         ( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
2418         for cf_header in $cf_header_list
2419         do
2420                 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2421                 test "$cf_cv_ncurses_h" != no && break
2422         done
2423 ])
2424
2425 CF_NCURSES_HEADER
2426 CF_TERM_HEADER
2427
2428 # some applications need this, but should check for NCURSES_VERSION
2429 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2430
2431 CF_NCURSES_VERSION
2432 ])dnl
2433 dnl ---------------------------------------------------------------------------
2434 dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
2435 dnl -----------------
2436 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2437 dnl variations of ncurses' installs.
2438 dnl
2439 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2440 AC_DEFUN([CF_NCURSES_HEADER],[
2441
2442 if test "$cf_cv_ncurses_h" != no ; then
2443         cf_cv_ncurses_header=$cf_cv_ncurses_h
2444 else
2445
2446 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2447         test -n "$verbose" && echo
2448         CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2449         test -n "$verbose" && echo search path $cf_search
2450         cf_save2_CPPFLAGS="$CPPFLAGS"
2451         for cf_incdir in $cf_search
2452         do
2453                 CF_ADD_INCDIR($cf_incdir)
2454                 for cf_header in \
2455                         ncurses.h \
2456                         curses.h
2457                 do
2458                         CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2459                         if test "$cf_cv_ncurses_h2" != no ; then
2460                                 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2461                                 test -n "$verbose" && echo $ac_n "      ... found $ac_c" 1>&AC_FD_MSG
2462                                 break
2463                         fi
2464                         test -n "$verbose" && echo "    ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2465                 done
2466                 CPPFLAGS="$cf_save2_CPPFLAGS"
2467                 test "$cf_cv_ncurses_h2" != no && break
2468         done
2469         test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2470         ])
2471
2472         CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2473         cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
2474         if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
2475                 cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
2476         fi
2477         CF_ADD_INCDIR($cf_1st_incdir)
2478
2479 fi
2480
2481 # Set definitions to allow ifdef'ing for ncurses.h
2482
2483 case $cf_cv_ncurses_header in
2484 (*ncurses.h)
2485         AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2486         ;;
2487 esac
2488
2489 case $cf_cv_ncurses_header in
2490 (ncurses/curses.h|ncurses/ncurses.h)
2491         AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2492         ;;
2493 (ncursesw/curses.h|ncursesw/ncurses.h)
2494         AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2495         ;;
2496 esac
2497
2498 ])dnl
2499 dnl ---------------------------------------------------------------------------
2500 dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
2501 dnl ---------------
2502 dnl Look for the ncurses library.  This is a little complicated on Linux,
2503 dnl because it may be linked with the gpm (general purpose mouse) library.
2504 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2505 dnl unusable with ncurses.  However, we don't want to link with gpm unless
2506 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2507 dnl and the linker will record a dependency.
2508 dnl
2509 dnl The optional parameter gives the root name of the library, in case it is
2510 dnl not installed as the default curses library.  That is how the
2511 dnl wide-character version of ncurses is installed.
2512 AC_DEFUN([CF_NCURSES_LIBS],
2513 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2514
2515 cf_nculib_root=ifelse($1,,ncurses,$1)
2516         # This works, except for the special case where we find gpm, but
2517         # ncurses is in a nonstandard location via $LIBS, and we really want
2518         # to link gpm.
2519 cf_ncurses_LIBS=""
2520 cf_ncurses_SAVE="$LIBS"
2521 AC_CHECK_LIB(gpm,Gpm_Open,
2522         [AC_CHECK_LIB(gpm,initscr,
2523                 [LIBS="$cf_ncurses_SAVE"],
2524                 [cf_ncurses_LIBS="-lgpm"])])
2525
2526 case $host_os in
2527 (freebsd*)
2528         # This is only necessary if you are linking against an obsolete
2529         # version of ncurses (but it should do no harm, since it's static).
2530         if test "$cf_nculib_root" = ncurses ; then
2531                 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2532         fi
2533         ;;
2534 esac
2535
2536 CF_ADD_LIBS($cf_ncurses_LIBS)
2537
2538 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
2539 then
2540         CF_ADD_LIBS(-l$cf_nculib_root)
2541 else
2542         CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2543                 [#include <${cf_cv_ncurses_header:-curses.h}>],
2544                 [initscr()],
2545                 initscr)
2546 fi
2547
2548 if test -n "$cf_ncurses_LIBS" ; then
2549         AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2550         cf_ncurses_SAVE="$LIBS"
2551         for p in $cf_ncurses_LIBS ; do
2552                 q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
2553                 if test "$q" != "$LIBS" ; then
2554                         LIBS="$q"
2555                 fi
2556         done
2557         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2558                 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2559                 [AC_MSG_RESULT(yes)],
2560                 [AC_MSG_RESULT(no)
2561                  LIBS="$cf_ncurses_SAVE"])
2562 fi
2563
2564 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2565 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2566 ])dnl
2567 dnl ---------------------------------------------------------------------------
2568 dnl CF_NCURSES_VERSION version: 15 updated: 2017/05/09 19:26:10
2569 dnl ------------------
2570 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2571 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
2572 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2573 AC_DEFUN([CF_NCURSES_VERSION],
2574 [
2575 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2576 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2577         cf_cv_ncurses_version=no
2578         cf_tempfile=out$$
2579         rm -f $cf_tempfile
2580         AC_TRY_RUN([
2581 #include <${cf_cv_ncurses_header:-curses.h}>
2582 #include <stdio.h>
2583 int main(void)
2584 {
2585         FILE *fp = fopen("$cf_tempfile", "w");
2586 #ifdef NCURSES_VERSION
2587 # ifdef NCURSES_VERSION_PATCH
2588         fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2589 # else
2590         fprintf(fp, "%s\n", NCURSES_VERSION);
2591 # endif
2592 #else
2593 # ifdef __NCURSES_H
2594         fprintf(fp, "old\n");
2595 # else
2596         make an error
2597 # endif
2598 #endif
2599         ${cf_cv_main_return:-return}(0);
2600 }],[
2601         cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2602
2603         # This will not work if the preprocessor splits the line after the
2604         # Autoconf token.  The 'unproto' program does that.
2605         cat > conftest.$ac_ext <<EOF
2606 #include <${cf_cv_ncurses_header:-curses.h}>
2607 #undef Autoconf
2608 #ifdef NCURSES_VERSION
2609 Autoconf NCURSES_VERSION
2610 #else
2611 #ifdef __NCURSES_H
2612 Autoconf "old"
2613 #endif
2614 ;
2615 #endif
2616 EOF
2617         cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2618         AC_TRY_EVAL(cf_try)
2619         if test -f conftest.out ; then
2620                 cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
2621                 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2622                 rm -f conftest.out
2623         fi
2624 ])
2625         rm -f $cf_tempfile
2626 ])
2627 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2628 ])dnl
2629 dnl ---------------------------------------------------------------------------
2630 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
2631 dnl -------------
2632 dnl Compute the object-directory name from the given model name
2633 AC_DEFUN([CF_OBJ_SUBDIR],
2634 [
2635         case $1 in
2636         (libtool) $2='obj_lo'  ;;
2637         (normal)  $2='objects' ;;
2638         (debug)   $2='obj_g' ;;
2639         (profile) $2='obj_p' ;;
2640         (shared)
2641                 case $cf_cv_system_name in
2642                 (cygwin|msys)
2643                         $2='objects' ;;
2644                 (*)
2645                         $2='obj_s' ;;
2646                 esac
2647         esac
2648 ])dnl
2649 dnl ---------------------------------------------------------------------------
2650 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
2651 dnl ----------
2652 dnl Provide a value for the $PATH and similar separator (or amend the value
2653 dnl as provided in autoconf 2.5x).
2654 AC_DEFUN([CF_PATHSEP],
2655 [
2656         AC_MSG_CHECKING(for PATH separator)
2657         case $cf_cv_system_name in
2658         (os2*)  PATH_SEPARATOR=';'  ;;
2659         (*)     ${PATH_SEPARATOR:=':'}  ;;
2660         esac
2661 ifelse([$1],,,[$1=$PATH_SEPARATOR])
2662         AC_SUBST(PATH_SEPARATOR)
2663         AC_MSG_RESULT($PATH_SEPARATOR)
2664 ])dnl
2665 dnl ---------------------------------------------------------------------------
2666 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
2667 dnl --------------
2668 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
2669 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2670 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
2671 dnl delayed evaluation of those symbols.
2672 AC_DEFUN([CF_PATH_SYNTAX],[
2673 if test "x$prefix" != xNONE; then
2674         cf_path_syntax="$prefix"
2675 else
2676         cf_path_syntax="$ac_default_prefix"
2677 fi
2678
2679 case ".[$]$1" in
2680 (.\[$]\(*\)*|.\'*\'*)
2681         ;;
2682 (..|./*|.\\*)
2683         ;;
2684 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
2685         ;;
2686 (.\[$]{*prefix}*|.\[$]{*dir}*)
2687         eval $1="[$]$1"
2688         case ".[$]$1" in
2689         (.NONE/*)
2690                 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2691                 ;;
2692         esac
2693         ;;
2694 (.no|.NONE/*)
2695         $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2696         ;;
2697 (*)
2698         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
2699         ;;
2700 esac
2701 ])dnl
2702 dnl ---------------------------------------------------------------------------
2703 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
2704 dnl -------------
2705 dnl Check for the package-config program, unless disabled by command-line.
2706 AC_DEFUN([CF_PKG_CONFIG],
2707 [
2708 AC_MSG_CHECKING(if you want to use pkg-config)
2709 AC_ARG_WITH(pkg-config,
2710         [  --with-pkg-config{=path} enable/disable use of pkg-config],
2711         [cf_pkg_config=$withval],
2712         [cf_pkg_config=yes])
2713 AC_MSG_RESULT($cf_pkg_config)
2714
2715 case $cf_pkg_config in
2716 (no)
2717         PKG_CONFIG=none
2718         ;;
2719 (yes)
2720         CF_ACVERSION_CHECK(2.52,
2721                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
2722                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
2723         ;;
2724 (*)
2725         PKG_CONFIG=$withval
2726         ;;
2727 esac
2728
2729 test -z "$PKG_CONFIG" && PKG_CONFIG=none
2730 if test "$PKG_CONFIG" != none ; then
2731         CF_PATH_SYNTAX(PKG_CONFIG)
2732 elif test "x$cf_pkg_config" != xno ; then
2733         AC_MSG_WARN(pkg-config is not installed)
2734 fi
2735
2736 AC_SUBST(PKG_CONFIG)
2737 ])dnl
2738 dnl ---------------------------------------------------------------------------
2739 dnl CF_POSIX_C_SOURCE version: 9 updated: 2015/04/12 15:39:00
2740 dnl -----------------
2741 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
2742 dnl
2743 dnl     POSIX.1-1990                            _POSIX_SOURCE
2744 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
2745 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
2746 dnl             Bindings Option
2747 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
2748 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
2749 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
2750 dnl
2751 dnl Parameters:
2752 dnl     $1 is the nominal value for _POSIX_C_SOURCE
2753 AC_DEFUN([CF_POSIX_C_SOURCE],
2754 [
2755 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
2756
2757 cf_save_CFLAGS="$CFLAGS"
2758 cf_save_CPPFLAGS="$CPPFLAGS"
2759
2760 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
2761 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
2762
2763 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
2764         CF_MSG_LOG(if the symbol is already defined go no further)
2765         AC_TRY_COMPILE([#include <sys/types.h>],[
2766 #ifndef _POSIX_C_SOURCE
2767 make an error
2768 #endif],
2769         [cf_cv_posix_c_source=no],
2770         [cf_want_posix_source=no
2771          case .$cf_POSIX_C_SOURCE in
2772          (.[[12]]??*)
2773                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2774                 ;;
2775          (.2)
2776                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2777                 cf_want_posix_source=yes
2778                 ;;
2779          (.*)
2780                 cf_want_posix_source=yes
2781                 ;;
2782          esac
2783          if test "$cf_want_posix_source" = yes ; then
2784                 AC_TRY_COMPILE([#include <sys/types.h>],[
2785 #ifdef _POSIX_SOURCE
2786 make an error
2787 #endif],[],
2788                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
2789          fi
2790          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
2791          CFLAGS="$cf_trim_CFLAGS"
2792          CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
2793          CF_MSG_LOG(if the second compile does not leave our definition intact error)
2794          AC_TRY_COMPILE([#include <sys/types.h>],[
2795 #ifndef _POSIX_C_SOURCE
2796 make an error
2797 #endif],,
2798          [cf_cv_posix_c_source=no])
2799          CFLAGS="$cf_save_CFLAGS"
2800          CPPFLAGS="$cf_save_CPPFLAGS"
2801         ])
2802 ])
2803
2804 if test "$cf_cv_posix_c_source" != no ; then
2805         CFLAGS="$cf_trim_CFLAGS"
2806         CPPFLAGS="$cf_trim_CPPFLAGS"
2807         CF_ADD_CFLAGS($cf_cv_posix_c_source)
2808 fi
2809
2810 ])dnl
2811 dnl ---------------------------------------------------------------------------
2812 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
2813 dnl ----------
2814 dnl Check for archiver "ar".
2815 AC_DEFUN([CF_PROG_AR],[
2816 AC_CHECK_TOOL(AR, ar, ar)
2817 ])
2818 dnl ---------------------------------------------------------------------------
2819 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
2820 dnl -----------
2821 dnl Check for awk, ensure that the check found something.
2822 AC_DEFUN([CF_PROG_AWK],
2823 [
2824 AC_PROG_AWK
2825 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
2826 ])dnl
2827 dnl ---------------------------------------------------------------------------
2828 dnl CF_PROG_CC version: 4 updated: 2014/07/12 18:57:58
2829 dnl ----------
2830 dnl standard check for CC, plus followup sanity checks
2831 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
2832 AC_DEFUN([CF_PROG_CC],[
2833 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
2834 CF_GCC_VERSION
2835 CF_ACVERSION_CHECK(2.52,
2836         [AC_PROG_CC_STDC],
2837         [CF_ANSI_CC_REQD])
2838 CF_CC_ENV_FLAGS
2839 ])dnl
2840 dnl ---------------------------------------------------------------------------
2841 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
2842 dnl --------------
2843 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
2844 dnl the output file can be renamed, and allows for a shell variable that can
2845 dnl be used later.  The parameter is either CC or CXX.  The result is the
2846 dnl cache variable:
2847 dnl     $cf_cv_prog_CC_c_o
2848 dnl     $cf_cv_prog_CXX_c_o
2849 dnl
2850 dnl $1 = compiler
2851 dnl $2 = compiler options, if any
2852 AC_DEFUN([CF_PROG_CC_C_O],
2853 [AC_REQUIRE([AC_PROG_CC])dnl
2854 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
2855 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
2856 [
2857 cat > conftest.$ac_ext <<CF_EOF
2858 int main(void)
2859 {
2860         ${cf_cv_main_return:-return}(0);
2861 }
2862 CF_EOF
2863 # We do the test twice because some compilers refuse to overwrite an
2864 # existing .o file with -o, though they will create one.
2865 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
2866 if AC_TRY_EVAL(ac_try) &&
2867   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
2868 then
2869   eval cf_cv_prog_$1_c_o=yes
2870 else
2871   eval cf_cv_prog_$1_c_o=no
2872 fi
2873 rm -rf conftest*
2874 ])dnl
2875 if test $cf_cv_prog_$1_c_o = yes; then
2876   AC_MSG_RESULT([yes])
2877 else
2878   AC_MSG_RESULT([no])
2879 fi
2880 ])dnl
2881 dnl ---------------------------------------------------------------------------
2882 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
2883 dnl -------------
2884 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
2885 dnl This macro adds a check to ensure the script found something.
2886 AC_DEFUN([CF_PROG_EGREP],
2887 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
2888         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
2889                 then ac_cv_prog_egrep='grep -E'
2890                 else ac_cv_prog_egrep='egrep'
2891         fi])
2892         EGREP=$ac_cv_prog_egrep
2893         AC_SUBST([EGREP])
2894         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
2895 ])dnl
2896 dnl ---------------------------------------------------------------------------
2897 dnl CF_PROG_EXT version: 13 updated: 2015/04/18 09:03:58
2898 dnl -----------
2899 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
2900 AC_DEFUN([CF_PROG_EXT],
2901 [
2902 AC_REQUIRE([CF_CHECK_CACHE])
2903 case $cf_cv_system_name in
2904 (os2*)
2905         CFLAGS="$CFLAGS -Zmt"
2906         CPPFLAGS="$CPPFLAGS -D__ST_MT_ERRNO__"
2907         CXXFLAGS="$CXXFLAGS -Zmt"
2908         # autoconf's macro sets -Zexe and suffix both, which conflict:w
2909         LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
2910         ac_cv_exeext=.exe
2911         ;;
2912 esac
2913
2914 AC_EXEEXT
2915 AC_OBJEXT
2916
2917 PROG_EXT="$EXEEXT"
2918 AC_SUBST(PROG_EXT)
2919 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
2920 ])dnl
2921 dnl ---------------------------------------------------------------------------
2922 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
2923 dnl ---------------
2924 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
2925 dnl misc/tabset install won't work properly.  Usually this happens only when
2926 dnl using the fallback mkinstalldirs script
2927 AC_DEFUN([CF_PROG_INSTALL],
2928 [AC_PROG_INSTALL
2929 case $INSTALL in
2930 (/*)
2931         ;;
2932 (*)
2933         CF_DIRNAME(cf_dir,$INSTALL)
2934         test -z "$cf_dir" && cf_dir=.
2935         INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
2936         ;;
2937 esac
2938 ])dnl
2939 dnl ---------------------------------------------------------------------------
2940 dnl CF_PROG_GNAT version: 5 updated: 2018/01/15 15:28:49
2941 dnl ------------
2942 dnl Check for gnatmake, ensure that it is complete.
2943 AC_DEFUN([CF_PROG_GNAT],[
2944 cf_ada_make=gnatmake
2945 cf_ada_config="#"
2946 AC_CHECK_PROG(gnatmake_exists, $cf_ada_make, yes, no)
2947 if test "$ac_cv_prog_gnatmake_exists" = no; then
2948         cf_ada_make=
2949         cf_cv_prog_gnat_correct=no
2950 else
2951         AC_CHECK_PROG(gprconfig_exists, gprconfig, yes, no)
2952         if test "$ac_cv_prog_gprconfig_exists" = yes
2953         then
2954                 rm -rf conftest* *~conftest*
2955                 if mkdir conftest.src
2956                 then
2957                         cf_ada_config=""
2958                         cd conftest.src
2959                         for cf_gprconfig in Ada C
2960                         do
2961                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
2962                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
2963                                 if test -n "$cf_gprconfig_value"
2964                                 then
2965                                         eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
2966                                         AC_MSG_RESULT($cf_gprconfig_value)
2967                                 else
2968                                         AC_MSG_RESULT(missing)
2969                                         cf_ada_config="#"
2970                                         break
2971                                 fi
2972                         done
2973                         cd ..
2974                         rm -rf conftest* *~conftest*
2975                 fi
2976         else
2977                 # gprconfig is newer than gnatmake; we can continue...
2978                 cf_ada_config="##"
2979         fi
2980         if test "x$cf_ada_config" != "x#"
2981         then
2982                 CF_GNAT_VERSION
2983                 AC_CHECK_PROG(M4_exists, m4, yes, no)
2984                 if test "$ac_cv_prog_M4_exists" = no; then
2985                         cf_cv_prog_gnat_correct=no
2986                         echo Ada95 binding required program m4 not found. Ada95 binding disabled.
2987                 fi
2988                 if test "$cf_cv_prog_gnat_correct" = yes; then
2989                         AC_MSG_CHECKING(if GNAT works)
2990                         CF_GNAT_TRY_RUN([procedure conftest;],
2991 [with Text_IO;
2992 with GNAT.OS_Lib;
2993 procedure conftest is
2994 begin
2995    Text_IO.Put ("Hello World");
2996    Text_IO.New_Line;
2997    GNAT.OS_Lib.OS_Exit (0);
2998 end conftest;],[cf_cv_prog_gnat_correct=yes],[cf_cv_prog_gnat_correct=no])
2999                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3000                 fi
3001         else
3002                 cf_cv_prog_gnat_correct=no
3003         fi
3004 fi
3005
3006 AC_SUBST(cf_ada_make)
3007 AC_SUBST(cf_ada_config)
3008 AC_SUBST(cf_ada_config_Ada)
3009 AC_SUBST(cf_ada_config_C)
3010 ])dnl
3011 dnl ---------------------------------------------------------------------------
3012 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3013 dnl ------------
3014 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3015 dnl option if it is supported.
3016 AC_DEFUN([CF_PROG_LN_S],[
3017 AC_PROG_LN_S
3018 AC_MSG_CHECKING(if $LN_S -f options work)
3019
3020 rm -f conf$$.src conf$$dst
3021 echo >conf$$.dst
3022 echo first >conf$$.src
3023 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3024         cf_prog_ln_sf=yes
3025 else
3026         cf_prog_ln_sf=no
3027 fi
3028 rm -f conf$$.dst conf$$src
3029 AC_MSG_RESULT($cf_prog_ln_sf)
3030
3031 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3032 ])dnl
3033 dnl ---------------------------------------------------------------------------
3034 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3035 dnl ----------------
3036 dnl Remove all -U and -D options that refer to the given symbol from a list
3037 dnl of C compiler options.  This works around the problem that not all
3038 dnl compilers process -U and -D options from left-to-right, so a -U option
3039 dnl cannot be used to cancel the effect of a preceding -D option.
3040 dnl
3041 dnl $1 = target (which could be the same as the source variable)
3042 dnl $2 = source (including '$')
3043 dnl $3 = symbol to remove
3044 define([CF_REMOVE_DEFINE],
3045 [
3046 $1=`echo "$2" | \
3047         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
3048                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
3049 ])dnl
3050 dnl ---------------------------------------------------------------------------
3051 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3052 dnl -------------
3053 dnl Remove the given library from the symbol
3054 dnl
3055 dnl $1 = target (which could be the same as the source variable)
3056 dnl $2 = source (including '$')
3057 dnl $3 = library to remove
3058 define([CF_REMOVE_LIB],
3059 [
3060 # remove $3 library from $2
3061 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
3062 ])dnl
3063 dnl ---------------------------------------------------------------------------
3064 dnl CF_SHARED_OPTS version: 92 updated: 2017/12/30 17:26:05
3065 dnl --------------
3066 dnl --------------
3067 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3068 dnl library.
3069 dnl
3070 dnl Notes:
3071 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3072 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3073 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3074 dnl shared library since that can lead to unexpected results at runtime.
3075 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3076 dnl libraries are compiled in ../../lib
3077 dnl
3078 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3079 dnl to install symbolic links to the rel/abi versions of shared libraries.
3080 dnl
3081 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3082 dnl version when making symbolic links.
3083 dnl
3084 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3085 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3086 dnl (ex: libncurses.so.<ver>).
3087 dnl
3088 dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
3089 AC_DEFUN([CF_SHARED_OPTS],
3090 [
3091         AC_REQUIRE([CF_LD_RPATH_OPT])
3092         RM_SHARED_OPTS=
3093         LOCAL_LDFLAGS=
3094         LOCAL_LDFLAGS2=
3095         LD_SHARED_OPTS=
3096         INSTALL_LIB="-m 644"
3097         : ${rel_builddir:=.}
3098
3099         shlibdir=$libdir
3100         AC_SUBST(shlibdir)
3101
3102         MAKE_DLLS="#"
3103         AC_SUBST(MAKE_DLLS)
3104
3105         cf_cv_do_symlinks=no
3106         cf_ld_rpath_opt=
3107         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3108
3109         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3110         AC_ARG_WITH(shlib-version,
3111         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
3112         [test -z "$withval" && withval=auto
3113         case $withval in
3114         (yes)
3115                 cf_cv_shlib_version=auto
3116                 ;;
3117         (rel|abi|auto)
3118                 cf_cv_shlib_version=$withval
3119                 ;;
3120         (*)
3121                 AC_MSG_RESULT($withval)
3122                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3123                 ;;
3124         esac
3125         ],[cf_cv_shlib_version=auto])
3126         AC_MSG_RESULT($cf_cv_shlib_version)
3127
3128         cf_cv_rm_so_locs=no
3129         cf_try_cflags=
3130
3131         # Some less-capable ports of gcc support only -fpic
3132         CC_SHARED_OPTS=
3133
3134         cf_try_fPIC=no
3135         if test "$GCC" = yes
3136         then
3137                 cf_try_fPIC=yes
3138         else
3139                 case $cf_cv_system_name in
3140                 (*linux*)       # e.g., PGI compiler
3141                         cf_try_fPIC=yes
3142                         ;;
3143                 esac
3144         fi
3145
3146         if test "$cf_try_fPIC" = yes
3147         then
3148                 AC_MSG_CHECKING(which $CC option to use)
3149                 cf_save_CFLAGS="$CFLAGS"
3150                 for CC_SHARED_OPTS in -fPIC -fpic ''
3151                 do
3152                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3153                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
3154                 done
3155                 AC_MSG_RESULT($CC_SHARED_OPTS)
3156                 CFLAGS="$cf_save_CFLAGS"
3157         fi
3158
3159         cf_cv_shlib_version_infix=no
3160
3161         case $cf_cv_system_name in
3162         (aix4.[3-9]*|aix[[5-7]]*)
3163                 if test "$GCC" = yes; then
3164                         CC_SHARED_OPTS='-Wl,-brtl'
3165                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3166                 else
3167                         CC_SHARED_OPTS='-brtl'
3168                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
3169                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3170                 fi
3171                 ;;
3172         (beos*)
3173                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
3174                 ;;
3175         (cygwin*)
3176                 CC_SHARED_OPTS=
3177                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3178                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3179                 cf_cv_shlib_version=cygdll
3180                 cf_cv_shlib_version_infix=cygdll
3181                 shlibdir=$bindir
3182                 MAKE_DLLS=
3183                 cat >mk_shared_lib.sh <<-CF_EOF
3184                 #!$SHELL
3185                 SHARED_LIB=\[$]1
3186                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3187                 shift
3188                 cat <<-EOF
3189                 Linking shared library
3190                 ** SHARED_LIB \[$]SHARED_LIB
3191                 ** IMPORT_LIB \[$]IMPORT_LIB
3192 EOF
3193                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3194 CF_EOF
3195                 chmod +x mk_shared_lib.sh
3196                 ;;
3197         (msys*)
3198                 CC_SHARED_OPTS=
3199                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3200                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3201                 cf_cv_shlib_version=msysdll
3202                 cf_cv_shlib_version_infix=msysdll
3203                 shlibdir=$bindir
3204                 MAKE_DLLS=
3205                 cat >mk_shared_lib.sh <<-CF_EOF
3206                 #!$SHELL
3207                 SHARED_LIB=\[$]1
3208                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3209                 shift
3210                 cat <<-EOF
3211                 Linking shared library
3212                 ** SHARED_LIB \[$]SHARED_LIB
3213                 ** IMPORT_LIB \[$]IMPORT_LIB
3214 EOF
3215                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3216 CF_EOF
3217                 chmod +x mk_shared_lib.sh
3218                 ;;
3219         (darwin*)
3220                 cf_try_cflags="no-cpp-precomp"
3221                 CC_SHARED_OPTS="-dynamic"
3222                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
3223                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
3224                 cf_cv_shlib_version_infix=yes
3225                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
3226                         cf_save_LDFLAGS=$LDFLAGS
3227                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3228                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
3229                                 LDFLAGS=$cf_save_LDFLAGS])
3230                 if test $cf_cv_ldflags_search_paths_first = yes; then
3231                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3232                 fi
3233                 ;;
3234         (hpux[[7-8]]*)
3235                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
3236                 if test "$GCC" != yes; then
3237                         CC_SHARED_OPTS='+Z'
3238                 fi
3239                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
3240                 INSTALL_LIB="-m 555"
3241                 ;;
3242         (hpux*)
3243                 # (tested with gcc 2.7.2 -- I don't have c89)
3244                 if test "$GCC" = yes; then
3245                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
3246                 else
3247                         CC_SHARED_OPTS='+Z'
3248                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
3249                 fi
3250                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
3251                 # HP-UX shared libraries must be executable, and should be
3252                 # readonly to exploit a quirk in the memory manager.
3253                 INSTALL_LIB="-m 555"
3254                 ;;
3255         (interix*)
3256                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3257                 if test "$cf_cv_shlib_version" = rel; then
3258                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3259                 else
3260                         cf_shared_soname='`basename $[@]`'
3261                 fi
3262                 CC_SHARED_OPTS=
3263                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
3264                 ;;
3265         (irix*)
3266                 if test "$cf_cv_enable_rpath" = yes ; then
3267                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3268                 fi
3269                 # tested with IRIX 5.2 and 'cc'.
3270                 if test "$GCC" != yes; then
3271                         CC_SHARED_OPTS='-KPIC'
3272                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
3273                 else
3274                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
3275                 fi
3276                 cf_cv_rm_so_locs=yes
3277                 ;;
3278         (linux*|gnu*|k*bsd*-gnu)
3279                 if test "$DFT_LWR_MODEL" = "shared" ; then
3280                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3281                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3282                 fi
3283                 if test "$cf_cv_enable_rpath" = yes ; then
3284                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3285                 fi
3286                 CF_SHARED_SONAME
3287                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3288                 ;;
3289         (mingw*)
3290                 cf_cv_shlib_version=mingw
3291                 cf_cv_shlib_version_infix=mingw
3292                 shlibdir=$bindir
3293                 MAKE_DLLS=
3294                 if test "$DFT_LWR_MODEL" = "shared" ; then
3295                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
3296                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3297                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
3298                 fi
3299                 CC_SHARED_OPTS=
3300                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3301                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3302                 cat >mk_shared_lib.sh <<-CF_EOF
3303                 #!$SHELL
3304                 SHARED_LIB=\[$]1
3305                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3306                 shift
3307                 cat <<-EOF
3308                 Linking shared library
3309                 ** SHARED_LIB \[$]SHARED_LIB
3310                 ** IMPORT_LIB \[$]IMPORT_LIB
3311 EOF
3312                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3313 CF_EOF
3314                 chmod +x mk_shared_lib.sh
3315                 ;;
3316         (openbsd[[2-9]].*|mirbsd*)
3317                 if test "$DFT_LWR_MODEL" = "shared" ; then
3318                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3319                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3320                 fi
3321                 if test "$cf_cv_enable_rpath" = yes ; then
3322                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3323                 fi
3324                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3325                 CF_SHARED_SONAME
3326                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3327                 ;;
3328         (nto-qnx*|openbsd*|freebsd[[12]].*)
3329                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3330                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
3331                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3332                 ;;
3333         (dragonfly*|freebsd*)
3334                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3335                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3336                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3337                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
3338                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3339                 fi
3340                 CF_SHARED_SONAME
3341                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3342                 ;;
3343         (netbsd*)
3344                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3345                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3346                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3347                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3348                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3349                         if test "$cf_cv_shlib_version" = auto; then
3350                         if test -f /usr/libexec/ld.elf_so; then
3351                                 cf_cv_shlib_version=abi
3352                         else
3353                                 cf_cv_shlib_version=rel
3354                         fi
3355                         fi
3356                         CF_SHARED_SONAME
3357                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
3358                 else
3359                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
3360                 fi
3361                 ;;
3362         (osf*|mls+*)
3363                 # tested with OSF/1 V3.2 and 'cc'
3364                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
3365                 # link with shared libs).
3366                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
3367                 case $host_os in
3368                 (osf4*)
3369                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
3370                         ;;
3371                 esac
3372                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
3373                 if test "$DFT_LWR_MODEL" = "shared" ; then
3374                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3375                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3376                 fi
3377                 cf_cv_rm_so_locs=yes
3378                 ;;
3379         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
3380                 # tested with osr5.0.5
3381                 if test "$GCC" != yes; then
3382                         CC_SHARED_OPTS='-belf -KPIC'
3383                 fi
3384                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
3385                 if test "$cf_cv_enable_rpath" = yes ; then
3386                         # only way is to set LD_RUN_PATH but no switch for it
3387                         RUN_PATH=$libdir
3388                 fi
3389                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3390                 LINK_PROGS='LD_RUN_PATH=${libdir}'
3391                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
3392                 ;;
3393         (sunos4*)
3394                 # tested with SunOS 4.1.1 and gcc 2.7.0
3395                 if test "$GCC" != yes; then
3396                         CC_SHARED_OPTS='-KPIC'
3397                 fi
3398                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
3399                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3400                 ;;
3401         (solaris2*)
3402                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
3403                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
3404                 if test "$DFT_LWR_MODEL" = "shared" ; then
3405                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
3406                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3407                 fi
3408                 if test "$cf_cv_enable_rpath" = yes ; then
3409                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
3410                 fi
3411                 CF_SHARED_SONAME
3412                 if test "$GCC" != yes; then
3413                         cf_save_CFLAGS="$CFLAGS"
3414                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
3415                         do
3416                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
3417                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
3418                         done
3419                         CFLAGS="$cf_save_CFLAGS"
3420                         CC_SHARED_OPTS=$cf_shared_opts
3421                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3422                 else
3423                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3424                 fi
3425                 ;;
3426         (sysv5uw7*|unix_sv*)
3427                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
3428                 if test "$GCC" != yes; then
3429                         CC_SHARED_OPTS='-KPIC'
3430                 fi
3431                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
3432                 ;;
3433         (*)
3434                 CC_SHARED_OPTS='unknown'
3435                 MK_SHARED_LIB='echo unknown'
3436                 ;;
3437         esac
3438
3439         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
3440         case "$cf_cv_shlib_version" in
3441         (rel|abi)
3442                 case "$MK_SHARED_LIB" in
3443                 (*'-o $[@]')
3444                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
3445                         ;;
3446                 (*)
3447                         AC_MSG_WARN(ignored --with-shlib-version)
3448                         ;;
3449                 esac
3450                 ;;
3451         esac
3452
3453         if test -n "$cf_try_cflags"
3454         then
3455 cat > conftest.$ac_ext <<EOF
3456 #line __oline__ "${as_me:-configure}"
3457 #include <stdio.h>
3458 int main(int argc, char *argv[[]])
3459 {
3460         printf("hello\n");
3461         return (argv[[argc-1]] == 0) ;
3462 }
3463 EOF
3464                 cf_save_CFLAGS="$CFLAGS"
3465                 for cf_opt in $cf_try_cflags
3466                 do
3467                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
3468                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
3469                         if AC_TRY_EVAL(ac_compile); then
3470                                 AC_MSG_RESULT(yes)
3471                                 cf_save_CFLAGS="$CFLAGS"
3472                         else
3473                                 AC_MSG_RESULT(no)
3474                         fi
3475                 done
3476                 CFLAGS="$cf_save_CFLAGS"
3477         fi
3478
3479
3480         # RPATH_LIST is a colon-separated list of directories
3481         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
3482         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
3483
3484         test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
3485
3486         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
3487         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
3488
3489         AC_SUBST(CC_SHARED_OPTS)
3490         AC_SUBST(LD_RPATH_OPT)
3491         AC_SUBST(LD_SHARED_OPTS)
3492         AC_SUBST(MK_SHARED_LIB)
3493         AC_SUBST(RM_SHARED_OPTS)
3494
3495         AC_SUBST(LINK_PROGS)
3496         AC_SUBST(LINK_TESTS)
3497
3498         AC_SUBST(EXTRA_LDFLAGS)
3499         AC_SUBST(LOCAL_LDFLAGS)
3500         AC_SUBST(LOCAL_LDFLAGS2)
3501
3502         AC_SUBST(INSTALL_LIB)
3503         AC_SUBST(RPATH_LIST)
3504 ])dnl
3505 dnl ---------------------------------------------------------------------------
3506 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
3507 dnl ----------------
3508 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
3509 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
3510 dnl option.
3511 dnl
3512 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
3513 dnl If missing, use "rel".
3514 define([CF_SHARED_SONAME],
3515 [
3516         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
3517         if test "$cf_cv_shlib_version" = rel; then
3518                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3519         else
3520                 cf_cv_shared_soname='`basename $[@]`'
3521         fi
3522 ])
3523 dnl ---------------------------------------------------------------------------
3524 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
3525 dnl --------------
3526 dnl     Remove "-g" option from the compiler options
3527 AC_DEFUN([CF_STRIP_G_OPT],
3528 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
3529 dnl ---------------------------------------------------------------------------
3530 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3531 dnl --------------
3532 dnl Construct a search-list for a nonstandard header/lib-file
3533 dnl     $1 = the variable to return as result
3534 dnl     $2 = the package name
3535 dnl     $3 = the subdirectory, e.g., bin, include or lib
3536 AC_DEFUN([CF_SUBDIR_PATH],
3537 [
3538 $1=
3539
3540 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3541
3542 for cf_subdir_prefix in \
3543         /usr \
3544         /usr/local \
3545         /usr/pkg \
3546         /opt \
3547         /opt/local \
3548         [$]HOME
3549 do
3550         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3551 done
3552 ])dnl
3553 dnl ---------------------------------------------------------------------------
3554 dnl CF_TERM_HEADER version: 4 updated: 2015/04/15 19:08:48
3555 dnl --------------
3556 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
3557 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
3558 dnl but some packagers change this, breaking various applications.
3559 AC_DEFUN([CF_TERM_HEADER],[
3560 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3561 case ${cf_cv_ncurses_header} in
3562 (*/ncurses.h|*/ncursesw.h)
3563         cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3564         ;;
3565 (*)
3566         cf_term_header=term.h
3567         ;;
3568 esac
3569
3570 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3571 do
3572 AC_TRY_COMPILE([#include <stdio.h>
3573 #include <${cf_cv_ncurses_header:-curses.h}>
3574 #include <$cf_test>
3575 ],[int x = auto_left_margin],[
3576         cf_cv_term_header="$cf_test"],[
3577         cf_cv_term_header=unknown
3578         ])
3579         test "$cf_cv_term_header" != unknown && break
3580 done
3581 ])
3582
3583 # Set definitions to allow ifdef'ing to accommodate subdirectories
3584
3585 case $cf_cv_term_header in
3586 (*term.h)
3587         AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3588         ;;
3589 esac
3590
3591 case $cf_cv_term_header in
3592 (ncurses/term.h)
3593         AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3594         ;;
3595 (ncursesw/term.h)
3596         AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3597         ;;
3598 esac
3599 ])dnl
3600 dnl ---------------------------------------------------------------------------
3601 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3602 dnl ---------------
3603 dnl Define a top_builddir symbol, for applications that need an absolute path.
3604 AC_DEFUN([CF_TOP_BUILDDIR],
3605 [
3606 top_builddir=ifelse($1,,`pwd`,$1)
3607 AC_SUBST(top_builddir)
3608 ])dnl
3609 dnl ---------------------------------------------------------------------------
3610 dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
3611 dnl -------------------
3612 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3613 dnl can define it successfully.
3614 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3615 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3616         AC_TRY_COMPILE([
3617 #include <stdlib.h>
3618 #include <string.h>
3619 #include <sys/types.h>
3620 ],[
3621 #ifndef _XOPEN_SOURCE
3622 make an error
3623 #endif],
3624         [cf_cv_xopen_source=no],
3625         [cf_save="$CPPFLAGS"
3626          CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
3627          AC_TRY_COMPILE([
3628 #include <stdlib.h>
3629 #include <string.h>
3630 #include <sys/types.h>
3631 ],[
3632 #ifdef _XOPEN_SOURCE
3633 make an error
3634 #endif],
3635         [cf_cv_xopen_source=no],
3636         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3637         CPPFLAGS="$cf_save"
3638         ])
3639 ])
3640
3641 if test "$cf_cv_xopen_source" != no ; then
3642         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3643         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3644         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3645         CF_ADD_CFLAGS($cf_temp_xopen_source)
3646 fi
3647 ])
3648 dnl ---------------------------------------------------------------------------
3649 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3650 dnl --------
3651 dnl Make an uppercase version of a variable
3652 dnl $1=uppercase($2)
3653 AC_DEFUN([CF_UPPER],
3654 [
3655 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3656 ])dnl
3657 dnl ---------------------------------------------------------------------------
3658 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
3659 dnl -----------
3660 dnl Check for multibyte support, and if not found, utf8 compatibility library
3661 AC_DEFUN([CF_UTF8_LIB],
3662 [
3663 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3664         cf_save_LIBS="$LIBS"
3665         AC_TRY_LINK([
3666 #include <stdlib.h>],[putwc(0,0);],
3667         [cf_cv_utf8_lib=yes],
3668         [CF_FIND_LINKAGE([
3669 #include <libutf8.h>],[putwc(0,0);],utf8,
3670                 [cf_cv_utf8_lib=add-on],
3671                 [cf_cv_utf8_lib=no])
3672 ])])
3673
3674 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3675 # ncurses/ncursesw:
3676 if test "$cf_cv_utf8_lib" = "add-on" ; then
3677         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3678         CF_ADD_INCDIR($cf_cv_header_path_utf8)
3679         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3680         CF_ADD_LIBS($cf_cv_library_file_utf8)
3681 fi
3682 ])dnl
3683 dnl ---------------------------------------------------------------------------
3684 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3685 dnl ----------
3686 dnl Use AC_VERBOSE w/o the warnings
3687 AC_DEFUN([CF_VERBOSE],
3688 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
3689 CF_MSG_LOG([$1])
3690 ])dnl
3691 dnl ---------------------------------------------------------------------------
3692 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
3693 dnl ---------------
3694 dnl Check for compiler-support for weak symbols.
3695 dnl This works with "recent" gcc.
3696 AC_DEFUN([CF_WEAK_SYMBOLS],[
3697 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
3698
3699 AC_TRY_COMPILE([
3700 #include <stdio.h>],
3701 [
3702 #if defined(__GNUC__)
3703 #  if defined __USE_ISOC99
3704 #    define _cat_pragma(exp)    _Pragma(#exp)
3705 #    define _weak_pragma(exp)   _cat_pragma(weak name)
3706 #  else
3707 #    define _weak_pragma(exp)
3708 #  endif
3709 #  define _declare(name)        __extension__ extern __typeof__(name) name
3710 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
3711 #endif
3712
3713 weak_symbol(fopen);
3714 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
3715 ])
3716 ])dnl
3717 dnl ---------------------------------------------------------------------------
3718 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
3719 dnl --------------------
3720 dnl Command-line option to specify the Ada95 compiler.
3721 AC_DEFUN([CF_WITH_ADA_COMPILER],[
3722 AC_MSG_CHECKING(for ada-compiler)
3723 AC_ARG_WITH(ada-compiler,
3724         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
3725         [cf_ada_compiler=$withval],
3726         [cf_ada_compiler=gnatmake])
3727 AC_SUBST(cf_ada_compiler)
3728 AC_MSG_RESULT($cf_ada_compiler)
3729 ])dnl
3730 dnl ---------------------------------------------------------------------------
3731 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
3732 dnl -------------------
3733 dnl Command-line option to specify where Ada includes will install.
3734 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
3735 AC_MSG_CHECKING(for ada-include)
3736 CF_WITH_PATH(ada-include,
3737    [  --with-ada-include=DIR  Ada includes are in DIR],
3738    ADA_INCLUDE,
3739    PREFIX/share/ada/adainclude,
3740    [$]prefix/share/ada/adainclude)
3741 AC_SUBST(ADA_INCLUDE)
3742 AC_MSG_RESULT($ADA_INCLUDE)
3743 ])dnl
3744 dnl ---------------------------------------------------------------------------
3745 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
3746 dnl -------------------
3747 dnl Command-line option to specify where Ada objects will install.
3748 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
3749 AC_MSG_CHECKING(for ada-objects)
3750 CF_WITH_PATH(ada-objects,
3751    [  --with-ada-objects=DIR  Ada objects are in DIR],
3752    ADA_OBJECTS,
3753    PREFIX/lib/ada/adalib,
3754    [$]prefix/lib/ada/adalib)
3755 AC_SUBST(ADA_OBJECTS)
3756 AC_MSG_RESULT($ADA_OBJECTS)
3757 ])dnl
3758 dnl ---------------------------------------------------------------------------
3759 dnl CF_WITH_ADA_SHAREDLIB version: 4 updated: 2014/05/31 21:08:37
3760 dnl ---------------------
3761 dnl Command-line option to specify if an Ada95 shared-library should be built,
3762 dnl and optionally what its soname should be.
3763 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
3764 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
3765 AC_ARG_WITH(ada-sharedlib,
3766         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
3767         [with_ada_sharedlib=$withval],
3768         [with_ada_sharedlib=no])
3769 AC_MSG_RESULT($with_ada_sharedlib)
3770
3771 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
3772 MAKE_ADA_SHAREDLIB="#"
3773
3774 if test "x$with_ada_sharedlib" != xno
3775 then
3776         MAKE_ADA_SHAREDLIB=
3777         if test "x$with_ada_sharedlib" != xyes
3778         then
3779                 ADA_SHAREDLIB="$with_ada_sharedlib"
3780         fi
3781 fi
3782
3783 AC_SUBST(ADA_SHAREDLIB)
3784 AC_SUBST(MAKE_ADA_SHAREDLIB)
3785 ])dnl
3786 dnl ---------------------------------------------------------------------------
3787 dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
3788 dnl ------------------
3789 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
3790 dnl libraries.
3791 AC_DEFUN([CF_WITH_CURSES_DIR],[
3792
3793 AC_MSG_CHECKING(for specific curses-directory)
3794 AC_ARG_WITH(curses-dir,
3795         [  --with-curses-dir=DIR   directory in which (n)curses is installed],
3796         [cf_cv_curses_dir=$withval],
3797         [cf_cv_curses_dir=no])
3798 AC_MSG_RESULT($cf_cv_curses_dir)
3799
3800 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
3801 then
3802         CF_PATH_SYNTAX(withval)
3803         if test -d "$cf_cv_curses_dir"
3804         then
3805                 CF_ADD_INCDIR($cf_cv_curses_dir/include)
3806                 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
3807         fi
3808 fi
3809 ])dnl
3810 dnl ---------------------------------------------------------------------------
3811 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
3812 dnl ------------------
3813 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
3814 dnl "lib" prefix, e.g., because it used the dll naming convention.
3815 dnl
3816 dnl $1 = variable to set
3817 AC_DEFUN([CF_WITH_LIB_PREFIX],
3818 [
3819 AC_MSG_CHECKING(if you want to have a library-prefix)
3820 AC_ARG_WITH(lib-prefix,
3821         [  --with-lib-prefix       override library-prefix],
3822         [with_lib_prefix=$withval],
3823         [with_lib_prefix=auto])
3824 AC_MSG_RESULT($with_lib_prefix)
3825
3826 if test $with_lib_prefix = auto
3827 then
3828         CF_LIB_PREFIX($1)
3829 elif test $with_lib_prefix = no
3830 then
3831         LIB_PREFIX=
3832 else
3833         LIB_PREFIX=$with_lib_prefix
3834 fi
3835 ])dnl
3836 dnl ---------------------------------------------------------------------------
3837 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
3838 dnl ------------
3839 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
3840 dnl defaulting to yes/no.
3841 dnl
3842 dnl $1 = option name
3843 dnl $2 = help-text
3844 dnl $3 = environment variable to set
3845 dnl $4 = default value, shown in the help-message, must be a constant
3846 dnl $5 = default value, if it's an expression & cannot be in the help-message
3847 dnl
3848 AC_DEFUN([CF_WITH_PATH],
3849 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
3850 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
3851 if ifelse([$5],,true,[test -n "$5"]) ; then
3852 CF_PATH_SYNTAX(withval)
3853 fi
3854 eval $3="$withval"
3855 AC_SUBST($3)dnl
3856 ])dnl
3857 dnl ---------------------------------------------------------------------------
3858 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
3859 dnl -------------------------
3860 dnl Allow the choice of the pkg-config library directory to be overridden.
3861 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
3862
3863 case $PKG_CONFIG in
3864 (no|none|yes)
3865         AC_MSG_CHECKING(for pkg-config library directory)
3866         ;;
3867 (*)
3868         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
3869         ;;
3870 esac
3871
3872 PKG_CONFIG_LIBDIR=no
3873 AC_ARG_WITH(pkg-config-libdir,
3874         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
3875         [PKG_CONFIG_LIBDIR=$withval],
3876         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
3877
3878 case x$PKG_CONFIG_LIBDIR in
3879 (x/*)
3880         ;;
3881 (xyes)
3882         # Look for the library directory using the same prefix as the executable
3883         if test "x$PKG_CONFIG" = xnone
3884         then
3885                 cf_path=$prefix
3886         else
3887                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
3888         fi
3889
3890         # If you don't like using the default architecture, you have to specify the
3891         # intended library directory and corresponding compiler/linker options.
3892         #
3893         # This case allows for Debian's 2014-flavor of multiarch, along with the
3894         # most common variations before that point.  Some other variants spell the
3895         # directory differently, e.g., "pkg-config", and put it in unusual places.
3896         # pkg-config has always been poorly standardized, which is ironic...
3897         case x`(arch) 2>/dev/null` in
3898         (*64)
3899                 cf_search_path="\
3900                         $cf_path/lib/*64-linux-gnu \
3901                         $cf_path/share \
3902                         $cf_path/lib64 \
3903                         $cf_path/lib32 \
3904                         $cf_path/lib"
3905                 ;;
3906         (*)
3907                 cf_search_path="\
3908                         $cf_path/lib/*-linux-gnu \
3909                         $cf_path/share \
3910                         $cf_path/lib32 \
3911                         $cf_path/lib \
3912                         $cf_path/libdata"
3913                 ;;
3914         esac
3915
3916         CF_VERBOSE(list...)
3917         for cf_config in $cf_search_path
3918         do
3919                 CF_VERBOSE(checking $cf_config/pkgconfig)
3920                 if test -d $cf_config/pkgconfig
3921                 then
3922                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
3923                         AC_MSG_CHECKING(done)
3924                         break
3925                 fi
3926         done
3927         ;;
3928 (*)
3929         ;;
3930 esac
3931
3932 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
3933         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
3934 fi
3935
3936 AC_SUBST(PKG_CONFIG_LIBDIR)
3937 ])dnl
3938 dnl ---------------------------------------------------------------------------
3939 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
3940 dnl ---------------
3941 dnl Check for POSIX thread library.
3942 AC_DEFUN([CF_WITH_PTHREAD],
3943 [
3944 AC_MSG_CHECKING(if you want to link with the pthread library)
3945 AC_ARG_WITH(pthread,
3946         [  --with-pthread          use POSIX thread library],
3947         [with_pthread=$withval],
3948         [with_pthread=no])
3949 AC_MSG_RESULT($with_pthread)
3950
3951 if test "$with_pthread" != no ; then
3952         AC_CHECK_HEADER(pthread.h,[
3953         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
3954
3955         for cf_lib_pthread in pthread c_r
3956         do
3957             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
3958             cf_save_LIBS="$LIBS"
3959             CF_ADD_LIB($cf_lib_pthread)
3960             AC_TRY_LINK([
3961 #include <pthread.h>
3962 ],[
3963                 int rc = pthread_create(0,0,0,0);
3964                 int r2 = pthread_mutexattr_settype(0, 0);
3965 ],[with_pthread=yes],[with_pthread=no])
3966             LIBS="$cf_save_LIBS"
3967             AC_MSG_RESULT($with_pthread)
3968             test "$with_pthread" = yes && break
3969         done
3970
3971         if test "$with_pthread" = yes ; then
3972             CF_ADD_LIB($cf_lib_pthread)
3973             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
3974         else
3975             AC_MSG_ERROR(Cannot link with pthread library)
3976         fi
3977         ])
3978 fi
3979 ])
3980 dnl ---------------------------------------------------------------------------
3981 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
3982 dnl ---------------
3983 dnl For testing, override the derived host system-type which is used to decide
3984 dnl things such as the linker commands used to build shared libraries.  This is
3985 dnl normally chosen automatically based on the type of system which you are
3986 dnl building on.  We use it for testing the configure script.
3987 dnl
3988 dnl This is different from the --host option: it is used only for testing parts
3989 dnl of the configure script which would not be reachable with --host since that
3990 dnl relies on the build environment being real, rather than mocked up.
3991 AC_DEFUN([CF_WITH_SYSTYPE],[
3992 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
3993 AC_ARG_WITH(system-type,
3994         [  --with-system-type=XXX  test: override derived host system-type],
3995 [AC_MSG_WARN(overriding system type to $withval)
3996         cf_cv_system_name=$withval
3997         host_os=$withval
3998 ])
3999 ])dnl
4000 dnl ---------------------------------------------------------------------------
4001 dnl CF_XOPEN_SOURCE version: 52 updated: 2016/08/27 12:21:42
4002 dnl ---------------
4003 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4004 dnl or adapt to the vendor's definitions to get equivalent functionality,
4005 dnl without losing the common non-POSIX features.
4006 dnl
4007 dnl Parameters:
4008 dnl     $1 is the nominal value for _XOPEN_SOURCE
4009 dnl     $2 is the nominal value for _POSIX_C_SOURCE
4010 AC_DEFUN([CF_XOPEN_SOURCE],[
4011 AC_REQUIRE([AC_CANONICAL_HOST])
4012
4013 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4014 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4015 cf_xopen_source=
4016
4017 case $host_os in
4018 (aix[[4-7]]*)
4019         cf_xopen_source="-D_ALL_SOURCE"
4020         ;;
4021 (msys)
4022         cf_XOPEN_SOURCE=600
4023         ;;
4024 (darwin[[0-8]].*)
4025         cf_xopen_source="-D_APPLE_C_SOURCE"
4026         ;;
4027 (darwin*)
4028         cf_xopen_source="-D_DARWIN_C_SOURCE"
4029         cf_XOPEN_SOURCE=
4030         ;;
4031 (freebsd*|dragonfly*)
4032         # 5.x headers associate
4033         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4034         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4035         cf_POSIX_C_SOURCE=200112L
4036         cf_XOPEN_SOURCE=600
4037         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4038         ;;
4039 (hpux11*)
4040         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4041         ;;
4042 (hpux*)
4043         cf_xopen_source="-D_HPUX_SOURCE"
4044         ;;
4045 (irix[[56]].*)
4046         cf_xopen_source="-D_SGI_SOURCE"
4047         cf_XOPEN_SOURCE=
4048         ;;
4049 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4050         CF_GNU_SOURCE
4051         ;;
4052 (minix*)
4053         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4054         ;;
4055 (mirbsd*)
4056         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4057         cf_XOPEN_SOURCE=
4058         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4059         ;;
4060 (netbsd*)
4061         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4062         ;;
4063 (openbsd[[4-9]]*)
4064         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4065         cf_xopen_source="-D_BSD_SOURCE"
4066         cf_XOPEN_SOURCE=600
4067         ;;
4068 (openbsd*)
4069         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4070         ;;
4071 (osf[[45]]*)
4072         cf_xopen_source="-D_OSF_SOURCE"
4073         ;;
4074 (nto-qnx*)
4075         cf_xopen_source="-D_QNX_SOURCE"
4076         ;;
4077 (sco*)
4078         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4079         ;;
4080 (solaris2.*)
4081         cf_xopen_source="-D__EXTENSIONS__"
4082         cf_cv_xopen_source=broken
4083         ;;
4084 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4085         cf_XOPEN_SOURCE=
4086         cf_POSIX_C_SOURCE=
4087         ;;
4088 (*)
4089         CF_TRY_XOPEN_SOURCE
4090         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4091         ;;
4092 esac
4093
4094 if test -n "$cf_xopen_source" ; then
4095         CF_ADD_CFLAGS($cf_xopen_source,true)
4096 fi
4097
4098 dnl In anything but the default case, we may have system-specific setting
4099 dnl which is still not guaranteed to provide all of the entrypoints that
4100 dnl _XOPEN_SOURCE would yield.
4101 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4102         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4103         AC_TRY_COMPILE([#include <stdlib.h>],[
4104 #ifndef _XOPEN_SOURCE
4105 make an error
4106 #endif],
4107         [cf_XOPEN_SOURCE_set=yes],
4108         [cf_XOPEN_SOURCE_set=no])
4109         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4110         if test $cf_XOPEN_SOURCE_set = yes
4111         then
4112                 AC_TRY_COMPILE([#include <stdlib.h>],[
4113 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4114 make an error
4115 #endif],
4116                 [cf_XOPEN_SOURCE_set_ok=yes],
4117                 [cf_XOPEN_SOURCE_set_ok=no])
4118                 if test $cf_XOPEN_SOURCE_set_ok = no
4119                 then
4120                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4121                 fi
4122         else
4123                 CF_TRY_XOPEN_SOURCE
4124         fi
4125 fi
4126 ])