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 1.142 2019/01/01 01:46:17 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: 15 updated: 2018/06/20 20:23:13
 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=$CPPFLAGS
 219                           CF_APPEND_TEXT(CPPFLAGS,-I$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: 9 updated: 2018/07/29 18:03:26
 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 : ${CC:=cc}
 543
 544 AC_MSG_CHECKING(\$CFLAGS variable)
 545 case "x$CFLAGS" in
 546 (*-[[IUD]]*)
 547         AC_MSG_RESULT(broken)
 548         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
 549         cf_flags="$CFLAGS"
 550         CFLAGS=
 551         for cf_arg in $cf_flags
 552         do
 553                 CF_ADD_CFLAGS($cf_arg)
 554         done
 555         ;;
 556 (*)
 557         AC_MSG_RESULT(ok)
 558         ;;
 559 esac
 560
 561 AC_MSG_CHECKING(\$CC variable)
 562 case "$CC" in
 563 (*[[\ \ ]]-*)
 564         AC_MSG_RESULT(broken)
 565         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 566         # humor him...
 567         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
 568         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
 569         CC="$cf_prog"
 570         for cf_arg in $cf_flags
 571         do
 572                 case "x$cf_arg" in
 573                 (x-[[IUDfgOW]]*)
 574                         CF_ADD_CFLAGS($cf_arg)
 575                         ;;
 576                 (*)
 577                         CC="$CC $cf_arg"
 578                         ;;
 579                 esac
 580         done
 581         CF_VERBOSE(resulting CC: '$CC')
 582         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
 583         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 584         ;;
 585 (*)
 586         AC_MSG_RESULT(ok)
 587         ;;
 588 esac
 589 ])dnl
 590 dnl ---------------------------------------------------------------------------
 591 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
 592 dnl ---------------
 593 dnl Determine the default configuration into which we'll install ncurses.  This
 594 dnl can be overridden by the user's command-line options.  There's two items to
 595 dnl look for:
 596 dnl     1. the prefix (e.g., /usr)
 597 dnl     2. the header files (e.g., /usr/include/ncurses)
 598 dnl We'll look for a previous installation of ncurses and use the same defaults.
 599 dnl
 600 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
 601 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
 602 dnl programs from a vendor's.
 603 AC_DEFUN([CF_CFG_DEFAULTS],
 604 [
 605 AC_MSG_CHECKING(for prefix)
 606 if test "x$prefix" = "xNONE" ; then
 607         case "$cf_cv_system_name" in
 608                 # non-vendor systems don't have a conflict
 609         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 610                 prefix=/usr
 611                 ;;
 612         (*)     prefix=$ac_default_prefix
 613                 ;;
 614         esac
 615 fi
 616 AC_MSG_RESULT($prefix)
 617
 618 if test "x$prefix" = "xNONE" ; then
 619 AC_MSG_CHECKING(for default include-directory)
 620 test -n "$verbose" && echo 1>&AC_FD_MSG
 621 for cf_symbol in \
 622         $includedir \
 623         $includedir/ncurses \
 624         $prefix/include \
 625         $prefix/include/ncurses \
 626         /usr/local/include \
 627         /usr/local/include/ncurses \
 628         /usr/include \
 629         /usr/include/ncurses
 630 do
 631         cf_dir=`eval echo $cf_symbol`
 632         if test -f $cf_dir/curses.h ; then
 633         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
 634                 includedir="$cf_symbol"
 635                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
 636                 break
 637         fi
 638         fi
 639         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
 640 done
 641 AC_MSG_RESULT($includedir)
 642 fi
 643 ])dnl
 644 dnl ---------------------------------------------------------------------------
 645 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
 646 dnl --------------
 647 dnl Check if we're accidentally using a cache from a different machine.
 648 dnl Derive the system name, as a check for reusing the autoconf cache.
 649 dnl
 650 dnl If we've packaged config.guess and config.sub, run that (since it does a
 651 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
 652 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
 653 dnl which is useful in cross-compiles.
 654 dnl
 655 dnl Note: we would use $ac_config_sub, but that is one of the places where
 656 dnl autoconf 2.5x broke compatibility with autoconf 2.13
 657 AC_DEFUN([CF_CHECK_CACHE],
 658 [
 659 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
 660         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
 661         system_name="$host_os"
 662 else
 663         system_name="`(uname -s -r) 2>/dev/null`"
 664         if test -z "$system_name" ; then
 665                 system_name="`(hostname) 2>/dev/null`"
 666         fi
 667 fi
 668 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 669 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 670
 671 test -z "$system_name" && system_name="$cf_cv_system_name"
 672 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
 673
 674 if test ".$system_name" != ".$cf_cv_system_name" ; then
 675         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
 676         AC_MSG_ERROR("Please remove config.cache and try again.")
 677 fi
 678 ])dnl
 679 dnl ---------------------------------------------------------------------------
 680 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
 681 dnl -----------------
 682 dnl Check if the given compiler is really clang.  clang's C driver defines
 683 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
 684 dnl not ignore some gcc options.
 685 dnl
 686 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
 687 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
 688 dnl the wrappers for gcc and g++ warnings.
 689 dnl
 690 dnl $1 = GCC (default) or GXX
 691 dnl $2 = CLANG_COMPILER (default)
 692 dnl $3 = CFLAGS (default) or CXXFLAGS
 693 AC_DEFUN([CF_CLANG_COMPILER],[
 694 ifelse([$2],,CLANG_COMPILER,[$2])=no
 695
 696 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 697         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
 698         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
 699         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
 700         AC_TRY_COMPILE([],[
 701 #ifdef __clang__
 702 #else
 703 make an error
 704 #endif
 705 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
 706 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
 707 ],[])
 708         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
 709         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
 710 fi
 711 ])
 712 dnl ---------------------------------------------------------------------------
 713 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
 714 dnl ----------------
 715 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 716 dnl variations of ncurses' installs.
 717 dnl
 718 dnl $1 = ncurses when looking for ncurses, or is empty
 719 AC_DEFUN([CF_CURSES_HEADER],[
 720 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
 721 cf_cv_ncurses_header=none
 722 for cf_header in \
 723         ncurses.h ifelse($1,,,[$1/ncurses.h]) \
 724         curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
 725 do
 726 AC_TRY_COMPILE([#include <${cf_header}>],
 727         [initscr(); tgoto("?", 0,0)],
 728         [cf_cv_ncurses_header=$cf_header; break],[])
 729 done
 730 ])
 731
 732 if test "$cf_cv_ncurses_header" = none ; then
 733         AC_MSG_ERROR(No curses header-files found)
 734 fi
 735
 736 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
 737 AC_CHECK_HEADERS($cf_cv_ncurses_header)
 738 ])dnl
 739 dnl ---------------------------------------------------------------------------
 740 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
 741 dnl ----------
 742 dnl "dirname" is not portable, so we fake it with a shell script.
 743 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
 744 dnl ---------------------------------------------------------------------------
 745 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
 746 dnl ---------------
 747 dnl You can always use "make -n" to see the actual options, but it's hard to
 748 dnl pick out/analyze warning messages when the compile-line is long.
 749 dnl
 750 dnl Sets:
 751 dnl     ECHO_LT - symbol to control if libtool is verbose
 752 dnl     ECHO_LD - symbol to prefix "cc -o" lines
 753 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
 754 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
 755 dnl     ECHO_CC - symbol to put before any "cc" line
 756 dnl
 757 AC_DEFUN([CF_DISABLE_ECHO],[
 758 AC_MSG_CHECKING(if you want to see long compiling messages)
 759 CF_ARG_DISABLE(echo,
 760         [  --disable-echo          do not display "compiling" commands],
 761         [
 762         ECHO_LT='--silent'
 763         ECHO_LD='@echo linking [$]@;'
 764         RULE_CC='@echo compiling [$]<'
 765         SHOW_CC='@echo compiling [$]@'
 766         ECHO_CC='@'
 767 ],[
 768         ECHO_LT=''
 769         ECHO_LD=''
 770         RULE_CC=''
 771         SHOW_CC=''
 772         ECHO_CC=''
 773 ])
 774 AC_MSG_RESULT($enableval)
 775 AC_SUBST(ECHO_LT)
 776 AC_SUBST(ECHO_LD)
 777 AC_SUBST(RULE_CC)
 778 AC_SUBST(SHOW_CC)
 779 AC_SUBST(ECHO_CC)
 780 ])dnl
 781 dnl ---------------------------------------------------------------------------
 782 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
 783 dnl ------------------------
 784 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
 785 AC_MSG_CHECKING(if we want to use GNAT projects)
 786 CF_ARG_DISABLE(gnat-projects,
 787         [  --disable-gnat-projects test: disable GNAT projects even if usable],
 788         [enable_gnat_projects=no],
 789         [enable_gnat_projects=yes])
 790 AC_MSG_RESULT($enable_gnat_projects)
 791 ])dnl
 792 dnl ---------------------------------------------------------------------------
 793 dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54
 794 dnl ---------------
 795 dnl Look for a non-standard library, given parameters for AC_TRY_LINK.  We
 796 dnl prefer a standard location, and use -L options only if we do not find the
 797 dnl library in the standard library location(s).
 798 dnl     $1 = library name
 799 dnl     $2 = library class, usually the same as library name
 800 dnl     $3 = includes
 801 dnl     $4 = code fragment to compile/link
 802 dnl     $5 = corresponding function-name
 803 dnl     $6 = flag, nonnull if failure should not cause an error-exit
 804 dnl
 805 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
 806 dnl to use a -L option.
 807 AC_DEFUN([CF_FIND_LIBRARY],
 808 [
 809         eval 'cf_cv_have_lib_'$1'=no'
 810         cf_libdir=""
 811         AC_CHECK_FUNC($5,
 812                 eval 'cf_cv_have_lib_'$1'=yes',[
 813                 cf_save_LIBS="$LIBS"
 814                 AC_MSG_CHECKING(for $5 in -l$1)
 815                 LIBS="-l$1 $LIBS"
 816                 AC_TRY_LINK([$3],[$4],
 817                         [AC_MSG_RESULT(yes)
 818                          eval 'cf_cv_have_lib_'$1'=yes'
 819                         ],
 820                         [AC_MSG_RESULT(no)
 821                         CF_LIBRARY_PATH(cf_search,$2)
 822                         for cf_libdir in $cf_search
 823                         do
 824                                 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
 825                                 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
 826                                 AC_TRY_LINK([$3],[$4],
 827                                         [AC_MSG_RESULT(yes)
 828                                          eval 'cf_cv_have_lib_'$1'=yes'
 829                                          break],
 830                                         [AC_MSG_RESULT(no)
 831                                          LIBS="$cf_save_LIBS"])
 832                         done
 833                         ])
 834                 ])
 835 eval 'cf_found_library=[$]cf_cv_have_lib_'$1
 836 ifelse($6,,[
 837 if test $cf_found_library = no ; then
 838         AC_MSG_ERROR(Cannot link $1 library)
 839 fi
 840 ])
 841 ])dnl
 842 dnl ---------------------------------------------------------------------------
 843 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
 844 dnl ---------------
 845 dnl Find a library (specifically the linkage used in the code fragment),
 846 dnl searching for it if it is not already in the library path.
 847 dnl See also CF_ADD_SEARCHPATH.
 848 dnl
 849 dnl Parameters (4-on are optional):
 850 dnl     $1 = headers for library entrypoint
 851 dnl     $2 = code fragment for library entrypoint
 852 dnl     $3 = the library name without the "-l" option or ".so" suffix.
 853 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
 854 dnl     $5 = action to perform if not successful
 855 dnl     $6 = module name, if not the same as the library name
 856 dnl     $7 = extra libraries
 857 dnl
 858 dnl Sets these variables:
 859 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
 860 dnl     $cf_cv_header_path_$3 - include-directory if needed
 861 dnl     $cf_cv_library_path_$3 - library-directory if needed
 862 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
 863 AC_DEFUN([CF_FIND_LINKAGE],[
 864
 865 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
 866 # will be set on completion of the AC_TRY_LINK below.
 867 cf_cv_header_path_$3=
 868 cf_cv_library_path_$3=
 869
 870 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
 871
 872 cf_save_LIBS="$LIBS"
 873
 874 AC_TRY_LINK([$1],[$2],[
 875         cf_cv_find_linkage_$3=yes
 876         cf_cv_header_path_$3=/usr/include
 877         cf_cv_library_path_$3=/usr/lib
 878 ],[
 879
 880 LIBS="-l$3 $7 $cf_save_LIBS"
 881
 882 AC_TRY_LINK([$1],[$2],[
 883         cf_cv_find_linkage_$3=yes
 884         cf_cv_header_path_$3=/usr/include
 885         cf_cv_library_path_$3=/usr/lib
 886         cf_cv_library_file_$3="-l$3"
 887 ],[
 888         cf_cv_find_linkage_$3=no
 889         LIBS="$cf_save_LIBS"
 890
 891         CF_VERBOSE(find linkage for $3 library)
 892         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
 893
 894         cf_save_CPPFLAGS="$CPPFLAGS"
 895         cf_test_CPPFLAGS="$CPPFLAGS"
 896
 897         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
 898         for cf_cv_header_path_$3 in $cf_search
 899         do
 900                 if test -d $cf_cv_header_path_$3 ; then
 901                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
 902                         CPPFLAGS="$cf_save_CPPFLAGS"
 903                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
 904                         AC_TRY_COMPILE([$1],[$2],[
 905                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
 906                                 cf_cv_find_linkage_$3=maybe
 907                                 cf_test_CPPFLAGS="$CPPFLAGS"
 908                                 break],[
 909                                 CPPFLAGS="$cf_save_CPPFLAGS"
 910                                 ])
 911                 fi
 912         done
 913
 914         if test "$cf_cv_find_linkage_$3" = maybe ; then
 915
 916                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
 917
 918                 cf_save_LIBS="$LIBS"
 919                 cf_save_LDFLAGS="$LDFLAGS"
 920
 921                 ifelse([$6],,,[
 922                 CPPFLAGS="$cf_test_CPPFLAGS"
 923                 LIBS="-l$3 $7 $cf_save_LIBS"
 924                 AC_TRY_LINK([$1],[$2],[
 925                         CF_VERBOSE(... found $3 library in system)
 926                         cf_cv_find_linkage_$3=yes])
 927                         CPPFLAGS="$cf_save_CPPFLAGS"
 928                         LIBS="$cf_save_LIBS"
 929                         ])
 930
 931                 if test "$cf_cv_find_linkage_$3" != yes ; then
 932                         CF_LIBRARY_PATH(cf_search,$3)
 933                         for cf_cv_library_path_$3 in $cf_search
 934                         do
 935                                 if test -d $cf_cv_library_path_$3 ; then
 936                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
 937                                         CPPFLAGS="$cf_test_CPPFLAGS"
 938                                         LIBS="-l$3 $7 $cf_save_LIBS"
 939                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
 940                                         AC_TRY_LINK([$1],[$2],[
 941                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
 942                                         cf_cv_find_linkage_$3=yes
 943                                         cf_cv_library_file_$3="-l$3"
 944                                         break],[
 945                                         CPPFLAGS="$cf_save_CPPFLAGS"
 946                                         LIBS="$cf_save_LIBS"
 947                                         LDFLAGS="$cf_save_LDFLAGS"
 948                                         ])
 949                                 fi
 950                         done
 951                         CPPFLAGS="$cf_save_CPPFLAGS"
 952                         LDFLAGS="$cf_save_LDFLAGS"
 953                 fi
 954
 955         else
 956                 cf_cv_find_linkage_$3=no
 957         fi
 958         ],$7)
 959 ])
 960
 961 LIBS="$cf_save_LIBS"
 962
 963 if test "$cf_cv_find_linkage_$3" = yes ; then
 964 ifelse([$4],,[
 965         CF_ADD_INCDIR($cf_cv_header_path_$3)
 966         CF_ADD_LIBDIR($cf_cv_library_path_$3)
 967         CF_ADD_LIB($3)
 968 ],[$4])
 969 else
 970 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
 971 fi
 972 ])dnl
 973 dnl ---------------------------------------------------------------------------
 974 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
 975 dnl -----------------
 976 dnl make ADAFLAGS consistent with CFLAGS
 977 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
 978         AC_MSG_CHECKING(optimization options for ADAFLAGS)
 979         case "$CFLAGS" in
 980         (*-g*)
 981                 CF_ADD_ADAFLAGS(-g)
 982                 ;;
 983         esac
 984         case "$CFLAGS" in
 985         (*-O*)
 986                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
 987                 CF_ADD_ADAFLAGS($cf_O_flag)
 988                 ;;
 989         esac
 990         AC_MSG_RESULT($ADAFLAGS)
 991 ])dnl
 992 dnl ---------------------------------------------------------------------------
 993 dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
 994 dnl -----------------
 995 dnl Test for availability of useful gcc __attribute__ directives to quiet
 996 dnl compiler warnings.  Though useful, not all are supported -- and contrary
 997 dnl to documentation, unrecognized directives cause older compilers to barf.
 998 AC_DEFUN([CF_GCC_ATTRIBUTES],
 999 [
1000 if test "$GCC" = yes
1001 then
1002 cat > conftest.i <<EOF
1003 #ifndef GCC_PRINTF
1004 #define GCC_PRINTF 0
1005 #endif
1006 #ifndef GCC_SCANF
1007 #define GCC_SCANF 0
1008 #endif
1009 #ifndef GCC_NORETURN
1010 #define GCC_NORETURN /* nothing */
1011 #endif
1012 #ifndef GCC_UNUSED
1013 #define GCC_UNUSED /* nothing */
1014 #endif
1015 EOF
1016 if test "$GCC" = yes
1017 then
1018         AC_CHECKING([for $CC __attribute__ directives])
1019 cat > conftest.$ac_ext <<EOF
1020 #line __oline__ "${as_me:-configure}"
1021 #include "confdefs.h"
1022 #include "conftest.h"
1023 #include "conftest.i"
1024 #if     GCC_PRINTF
1025 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1026 #else
1027 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1028 #endif
1029 #if     GCC_SCANF
1030 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
1031 #else
1032 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
1033 #endif
1034 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1035 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
1036 extern void foo(void) GCC_NORETURN;
1037 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
1038 EOF
1039         cf_printf_attribute=no
1040         cf_scanf_attribute=no
1041         for cf_attribute in scanf printf unused noreturn
1042         do
1043                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1044                 cf_directive="__attribute__(($cf_attribute))"
1045                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1046
1047                 case $cf_attribute in
1048                 (printf)
1049                         cf_printf_attribute=yes
1050                         cat >conftest.h <<EOF
1051 #define GCC_$cf_ATTRIBUTE 1
1052 EOF
1053                         ;;
1054                 (scanf)
1055                         cf_scanf_attribute=yes
1056                         cat >conftest.h <<EOF
1057 #define GCC_$cf_ATTRIBUTE 1
1058 EOF
1059                         ;;
1060                 (*)
1061                         cat >conftest.h <<EOF
1062 #define GCC_$cf_ATTRIBUTE $cf_directive
1063 EOF
1064                         ;;
1065                 esac
1066
1067                 if AC_TRY_EVAL(ac_compile); then
1068                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1069                         cat conftest.h >>confdefs.h
1070                         case $cf_attribute in
1071                         (noreturn)
1072                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1073                                 ;;
1074                         (printf)
1075                                 cf_value='/* nothing */'
1076                                 if test "$cf_printf_attribute" != no ; then
1077                                         cf_value='__attribute__((format(printf,fmt,var)))'
1078                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1079                                 fi
1080                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1081                                 ;;
1082                         (scanf)
1083                                 cf_value='/* nothing */'
1084                                 if test "$cf_scanf_attribute" != no ; then
1085                                         cf_value='__attribute__((format(scanf,fmt,var)))'
1086                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1087                                 fi
1088                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1089                                 ;;
1090                         (unused)
1091                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1092                                 ;;
1093                         esac
1094                 fi
1095         done
1096 else
1097         fgrep define conftest.i >>confdefs.h
1098 fi
1099 rm -rf conftest*
1100 fi
1101 ])dnl
1102 dnl ---------------------------------------------------------------------------
1103 dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
1104 dnl --------------
1105 dnl Find version of gcc
1106 AC_DEFUN([CF_GCC_VERSION],[
1107 AC_REQUIRE([AC_PROG_CC])
1108 GCC_VERSION=none
1109 if test "$GCC" = yes ; then
1110         AC_MSG_CHECKING(version of $CC)
1111         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1112         test -z "$GCC_VERSION" && GCC_VERSION=unknown
1113         AC_MSG_RESULT($GCC_VERSION)
1114 fi
1115 ])dnl
1116 dnl ---------------------------------------------------------------------------
1117 dnl CF_GCC_WARNINGS version: 33 updated: 2018/06/20 20:23:13
1118 dnl ---------------
1119 dnl Check if the compiler supports useful warning options.  There's a few that
1120 dnl we don't use, simply because they're too noisy:
1121 dnl
1122 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1123 dnl     -Wredundant-decls (system headers make this too noisy)
1124 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
1125 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
1126 dnl             is enabled for ncurses using "--enable-const".
1127 dnl     -pedantic
1128 dnl
1129 dnl Parameter:
1130 dnl     $1 is an optional list of gcc warning flags that a particular
1131 dnl             application might want to use, e.g., "no-unused" for
1132 dnl             -Wno-unused
1133 dnl Special:
1134 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
1135 dnl
1136 AC_DEFUN([CF_GCC_WARNINGS],
1137 [
1138 AC_REQUIRE([CF_GCC_VERSION])
1139 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1140 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1141
1142 cat > conftest.$ac_ext <<EOF
1143 #line __oline__ "${as_me:-configure}"
1144 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1145 EOF
1146
1147 if test "$INTEL_COMPILER" = yes
1148 then
1149 # The "-wdXXX" options suppress warnings:
1150 # remark #1419: external declaration in primary source file
1151 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1152 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1153 # remark #193: zero used for undefined preprocessing identifier
1154 # remark #593: variable "curs_sb_left_arrow" was set but never used
1155 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1156 # remark #869: parameter "tw" was never referenced
1157 # remark #981: operands are evaluated in unspecified order
1158 # warning #279: controlling expression is constant
1159
1160         AC_CHECKING([for $CC warning options])
1161         cf_save_CFLAGS="$CFLAGS"
1162         EXTRA_CFLAGS="-Wall"
1163         for cf_opt in \
1164                 wd1419 \
1165                 wd1683 \
1166                 wd1684 \
1167                 wd193 \
1168                 wd593 \
1169                 wd279 \
1170                 wd810 \
1171                 wd869 \
1172                 wd981
1173         do
1174                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1175                 if AC_TRY_EVAL(ac_compile); then
1176                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1177                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1178                 fi
1179         done
1180         CFLAGS="$cf_save_CFLAGS"
1181
1182 elif test "$GCC" = yes
1183 then
1184         AC_CHECKING([for $CC warning options])
1185         cf_save_CFLAGS="$CFLAGS"
1186         EXTRA_CFLAGS=
1187         cf_warn_CONST=""
1188         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1189         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1190         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1191         for cf_opt in W Wall \
1192                 Wbad-function-cast \
1193                 Wcast-align \
1194                 Wcast-qual \
1195                 Wdeclaration-after-statement \
1196                 Wextra \
1197                 Winline \
1198                 Wmissing-declarations \
1199                 Wmissing-prototypes \
1200                 Wnested-externs \
1201                 Wpointer-arith \
1202                 Wshadow \
1203                 Wstrict-prototypes \
1204                 Wundef $cf_gcc_warnings $cf_warn_CONST $1
1205         do
1206                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1207                 if AC_TRY_EVAL(ac_compile); then
1208                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1209                         case $cf_opt in
1210                         (Wcast-qual)
1211                                 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1212                                 ;;
1213                         (Winline)
1214                                 case $GCC_VERSION in
1215                                 ([[34]].*)
1216                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1217                                         continue;;
1218                                 esac
1219                                 ;;
1220                         (Wpointer-arith)
1221                                 case $GCC_VERSION in
1222                                 ([[12]].*)
1223                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1224                                         continue;;
1225                                 esac
1226                                 ;;
1227                         esac
1228                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1229                 fi
1230         done
1231         CFLAGS="$cf_save_CFLAGS"
1232 fi
1233 rm -rf conftest*
1234
1235 AC_SUBST(EXTRA_CFLAGS)
1236 ])dnl
1237 dnl ---------------------------------------------------------------------------
1238 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
1239 dnl -----------------
1240 AC_DEFUN([CF_GNATPREP_OPT_T],[
1241 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
1242 cf_cv_gnatprep_opt_t=no
1243 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
1244 ])
1245 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
1246 AC_SUBST(GNATPREP_OPTS)
1247 ])dnl
1248 dnl ---------------------------------------------------------------------------
1249 dnl CF_GNAT_GENERICS version: 3 updated: 2015/04/17 21:13:04
1250 dnl ----------------
1251 AC_DEFUN([CF_GNAT_GENERICS],
1252 [
1253 AC_REQUIRE([CF_GNAT_VERSION])
1254
1255 AC_MSG_CHECKING(if GNAT supports generics)
1256 case $cf_gnat_version in
1257 (3.[[1-9]]*|[[4-9]].*)
1258         cf_gnat_generics=yes
1259         ;;
1260 (*)
1261         cf_gnat_generics=no
1262         ;;
1263 esac
1264 AC_MSG_RESULT($cf_gnat_generics)
1265
1266 if test "$cf_gnat_generics" = yes
1267 then
1268         cf_compile_generics=generics
1269         cf_generic_objects="\${GENOBJS}"
1270 else
1271         cf_compile_generics=
1272         cf_generic_objects=
1273 fi
1274
1275 AC_SUBST(cf_compile_generics)
1276 AC_SUBST(cf_generic_objects)
1277 ])dnl
1278 dnl ---------------------------------------------------------------------------
1279 dnl CF_GNAT_PROJECTS version: 9 updated: 2018/01/14 15:46:09
1280 dnl ----------------
1281 dnl GNAT projects are configured with ".gpr" project files.
1282 dnl GNAT libraries are a further development, using the project feature.
1283 AC_DEFUN([CF_GNAT_PROJECTS],
1284 [
1285 AC_REQUIRE([CF_GNAT_VERSION])
1286 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
1287
1288 cf_gnat_libraries=no
1289 cf_gnat_projects=no
1290
1291 if test "$enable_gnat_projects" != no ; then
1292 AC_MSG_CHECKING(if GNAT supports project files)
1293 case $cf_gnat_version in
1294 (3.[[0-9]]*)
1295         ;;
1296 (*)
1297         case $cf_cv_system_name in
1298         (cygwin*|msys*)
1299                 ;;
1300         (*)
1301                 rm -rf conftest* *~conftest*
1302                 if mkdir conftest.src conftest.bin conftest.lib
1303                 then
1304                         cd conftest.src
1305                         rm -rf conftest* *~conftest*
1306                         cat >>library.gpr <<CF_EOF
1307 project Library is
1308   Kind := External ("LIB_KIND");
1309   for Library_Name use "ConfTest";
1310   for Object_Dir use ".";
1311   for Library_ALI_Dir use External("LIBRARY_DIR");
1312   for Library_Version use External ("SONAME");
1313   for Library_Kind use Kind;
1314   for Library_Dir use External("BUILD_DIR");
1315   Source_Dir := External ("SOURCE_DIR");
1316   for Source_Dirs use (Source_Dir);
1317 end Library;
1318 CF_EOF
1319                         cat >>confpackage.ads <<CF_EOF
1320 package ConfPackage is
1321    procedure conftest;
1322 end ConfPackage;
1323 CF_EOF
1324                         cat >>confpackage.adb <<CF_EOF
1325 with Text_IO;
1326 package body ConfPackage is
1327    procedure conftest is
1328    begin
1329       Text_IO.Put ("Hello World");
1330       Text_IO.New_Line;
1331    end conftest;
1332 end ConfPackage;
1333 CF_EOF
1334                         if ( $cf_ada_make $ADAFLAGS \
1335                                         -Plibrary.gpr \
1336                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
1337                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
1338                                         -XSOURCE_DIR=`pwd` \
1339                                         -XSONAME=libConfTest.so.1 \
1340                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
1341                                 cf_gnat_projects=yes
1342                         fi
1343                         cd ..
1344                 fi
1345                 if test -f conftest.lib/confpackage.ali
1346                 then
1347                         cf_gnat_libraries=yes
1348                 fi
1349                 rm -rf conftest* *~conftest*
1350                 ;;
1351         esac
1352         ;;
1353 esac
1354 AC_MSG_RESULT($cf_gnat_projects)
1355 fi # enable_gnat_projects
1356
1357 if test $cf_gnat_projects = yes
1358 then
1359         AC_MSG_CHECKING(if GNAT supports libraries)
1360         AC_MSG_RESULT($cf_gnat_libraries)
1361 fi
1362
1363 if test "$cf_gnat_projects" = yes
1364 then
1365         USE_OLD_MAKERULES="#"
1366         USE_GNAT_PROJECTS=""
1367 else
1368         USE_OLD_MAKERULES=""
1369         USE_GNAT_PROJECTS="#"
1370 fi
1371
1372 if test "$cf_gnat_libraries" = yes
1373 then
1374         USE_GNAT_LIBRARIES=""
1375 else
1376         USE_GNAT_LIBRARIES="#"
1377 fi
1378
1379 AC_SUBST(USE_OLD_MAKERULES)
1380 AC_SUBST(USE_GNAT_PROJECTS)
1381 AC_SUBST(USE_GNAT_LIBRARIES)
1382 ])dnl
1383 dnl ---------------------------------------------------------------------------
1384 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
1385 dnl --------------
1386 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
1387 dnl is noted that gnat may compile a tasking unit even for configurations which
1388 dnl fail at runtime.
1389 AC_DEFUN([CF_GNAT_SIGINT],[
1390 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
1391 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
1392
1393 package ConfTest is
1394
1395    pragma Warnings (Off);  --  the next pragma exists since 3.11p
1396    pragma Unreserve_All_Interrupts;
1397    pragma Warnings (On);
1398
1399    protected Process is
1400       procedure Stop;
1401       function Continue return Boolean;
1402       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
1403    private
1404       Done : Boolean := False;
1405    end Process;
1406
1407 end ConfTest;],
1408 [package body ConfTest is
1409    protected body Process is
1410       procedure Stop is
1411       begin
1412          Done := True;
1413       end Stop;
1414       function Continue return Boolean is
1415       begin
1416          return not Done;
1417       end Continue;
1418    end Process;
1419 end ConfTest;],
1420         [cf_cv_gnat_sigint=yes],
1421         [cf_cv_gnat_sigint=no])])
1422
1423 if test $cf_cv_gnat_sigint = yes ; then
1424         USE_GNAT_SIGINT=""
1425 else
1426         USE_GNAT_SIGINT="#"
1427 fi
1428 AC_SUBST(USE_GNAT_SIGINT)
1429 ])dnl
1430 dnl ---------------------------------------------------------------------------
1431 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
1432 dnl ----------------
1433 dnl Verify that a test program compiles/links with GNAT.
1434 dnl $cf_ada_make is set to the program that compiles/links
1435 dnl $ADAFLAGS may be set to the GNAT flags.
1436 dnl
1437 dnl $1 is the text of the spec
1438 dnl $2 is the text of the body
1439 dnl $3 is the shell command to execute if successful
1440 dnl $4 is the shell command to execute if not successful
1441 AC_DEFUN([CF_GNAT_TRY_LINK],
1442 [
1443 rm -rf conftest* *~conftest*
1444 cat >>conftest.ads <<CF_EOF
1445 $1
1446 CF_EOF
1447 cat >>conftest.adb <<CF_EOF
1448 $2
1449 CF_EOF
1450 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1451 ifelse($3,,      :,[      $3])
1452 ifelse($4,,,[else
1453    $4])
1454 fi
1455 rm -rf conftest* *~conftest*
1456 ])dnl
1457 dnl ---------------------------------------------------------------------------
1458 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
1459 dnl ---------------
1460 dnl Verify that a test program compiles and runs with GNAT
1461 dnl $cf_ada_make is set to the program that compiles/links
1462 dnl $ADAFLAGS may be set to the GNAT flags.
1463 dnl
1464 dnl $1 is the text of the spec
1465 dnl $2 is the text of the body
1466 dnl $3 is the shell command to execute if successful
1467 dnl $4 is the shell command to execute if not successful
1468 AC_DEFUN([CF_GNAT_TRY_RUN],
1469 [
1470 rm -rf conftest* *~conftest*
1471 cat >>conftest.ads <<CF_EOF
1472 $1
1473 CF_EOF
1474 cat >>conftest.adb <<CF_EOF
1475 $2
1476 CF_EOF
1477 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
1478    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
1479 ifelse($3,,      :,[      $3])
1480 ifelse($4,,,[   else
1481       $4])
1482    fi
1483 ifelse($4,,,[else
1484    $4])
1485 fi
1486 rm -rf conftest* *~conftest*
1487 ])dnl
1488 dnl ---------------------------------------------------------------------------
1489 dnl CF_GNAT_VERSION version: 20 updated: 2015/04/18 08:56:57
1490 dnl ---------------
1491 dnl Verify version of GNAT.
1492 AC_DEFUN([CF_GNAT_VERSION],
1493 [
1494 AC_MSG_CHECKING(for gnat version)
1495 cf_gnat_version=`${cf_ada_make:-gnatmake} -v 2>&1 | \
1496         grep '[[0-9]].[[0-9]][[0-9]]*' |\
1497         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
1498 AC_MSG_RESULT($cf_gnat_version)
1499
1500 case $cf_gnat_version in
1501 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
1502         cf_cv_prog_gnat_correct=yes
1503         ;;
1504 (*)
1505         AC_MSG_WARN(Unsupported GNAT version $cf_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1506         cf_cv_prog_gnat_correct=no
1507         ;;
1508 esac
1509 ])
1510 dnl ---------------------------------------------------------------------------
1511 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1512 dnl -------------
1513 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1514 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
1515 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1516 dnl since it is interwoven with GNU extensions.
1517 dnl
1518 dnl Well, yes we could work around it...
1519 dnl
1520 dnl Parameters:
1521 dnl     $1 is the nominal value for _XOPEN_SOURCE
1522 AC_DEFUN([CF_GNU_SOURCE],
1523 [
1524 cf_gnu_xopen_source=ifelse($1,,500,$1)
1525
1526 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1527 AC_TRY_COMPILE([#include <sys/types.h>],[
1528         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1529                 return 0;
1530         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1531                 return 0;
1532         #else
1533         #       error not GNU C library
1534         #endif],
1535         [cf_cv_gnu_library=yes],
1536         [cf_cv_gnu_library=no])
1537 ])
1538
1539 if test x$cf_cv_gnu_library = xyes; then
1540
1541         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1542         # was changed to help a little.  newlib incorporated the change about 4
1543         # years later.
1544         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1545                 cf_save="$CPPFLAGS"
1546                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1547                 AC_TRY_COMPILE([#include <sys/types.h>],[
1548                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1549                                 return 0;
1550                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1551                                 return 0;
1552                         #else
1553                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1554                         #endif],
1555                         [cf_cv_gnu_library_219=yes],
1556                         [cf_cv_gnu_library_219=no])
1557                 CPPFLAGS="$cf_save"
1558         ])
1559
1560         if test "x$cf_cv_gnu_library_219" = xyes; then
1561                 cf_save="$CPPFLAGS"
1562                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1563                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
1564                         AC_TRY_COMPILE([
1565                                 #include <limits.h>
1566                                 #include <sys/types.h>
1567                                 ],[
1568                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
1569                                         return 0;
1570                                 #else
1571                                 #       error GNU C library is too old
1572                                 #endif],
1573                                 [cf_cv_gnu_dftsrc_219=yes],
1574                                 [cf_cv_gnu_dftsrc_219=no])
1575                         ])
1576                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
1577         else
1578                 cf_cv_gnu_dftsrc_219=maybe
1579         fi
1580
1581         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
1582
1583                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
1584                 AC_TRY_COMPILE([#include <sys/types.h>],[
1585                         #ifndef _XOPEN_SOURCE
1586                         #error  expected _XOPEN_SOURCE to be defined
1587                         #endif],
1588                         [cf_cv_gnu_source=no],
1589                         [cf_save="$CPPFLAGS"
1590                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
1591                          AC_TRY_COMPILE([#include <sys/types.h>],[
1592                                 #ifdef _XOPEN_SOURCE
1593                                 #error  expected _XOPEN_SOURCE to be undefined
1594                                 #endif],
1595                                 [cf_cv_gnu_source=no],
1596                                 [cf_cv_gnu_source=yes])
1597                         CPPFLAGS="$cf_save"
1598                         ])
1599                 ])
1600
1601                 if test "$cf_cv_gnu_source" = yes
1602                 then
1603                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
1604                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
1605                         AC_TRY_COMPILE([#include <sys/types.h>],[
1606                                 #ifdef _DEFAULT_SOURCE
1607                                 #error  expected _DEFAULT_SOURCE to be undefined
1608                                 #endif],
1609                                 [cf_cv_default_source=no],
1610                                 [cf_cv_default_source=yes])
1611                         ])
1612                         if test "$cf_cv_default_source" = yes
1613                         then
1614                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1615                         fi
1616                 fi
1617         fi
1618
1619 fi
1620 ])dnl
1621 dnl ---------------------------------------------------------------------------
1622 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
1623 dnl --------------
1624 dnl Construct a search-list of directories for a nonstandard header-file
1625 dnl
1626 dnl Parameters
1627 dnl     $1 = the variable to return as result
1628 dnl     $2 = the package name
1629 AC_DEFUN([CF_HEADER_PATH],
1630 [
1631 $1=
1632
1633 # collect the current set of include-directories from compiler flags
1634 cf_header_path_list=""
1635 if test -n "${CFLAGS}${CPPFLAGS}" ; then
1636         for cf_header_path in $CPPFLAGS $CFLAGS
1637         do
1638                 case $cf_header_path in
1639                 (-I*)
1640                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
1641                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
1642                         cf_header_path_list="$cf_header_path_list [$]$1"
1643                         ;;
1644                 esac
1645         done
1646 fi
1647
1648 # add the variations for the package we are looking for
1649 CF_SUBDIR_PATH($1,$2,include)
1650
1651 test "$includedir" != NONE && \
1652 test "$includedir" != "/usr/include" && \
1653 test -d "$includedir" && {
1654         test -d $includedir &&    $1="[$]$1 $includedir"
1655         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
1656 }
1657
1658 test "$oldincludedir" != NONE && \
1659 test "$oldincludedir" != "/usr/include" && \
1660 test -d "$oldincludedir" && {
1661         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
1662         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
1663 }
1664
1665 $1="[$]$1 $cf_header_path_list"
1666 ])dnl
1667 dnl ---------------------------------------------------------------------------
1668 dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
1669 dnl ---------------
1670 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
1671 AC_DEFUN([CF_HELP_MESSAGE],
1672 [AC_DIVERT_HELP([$1])dnl
1673 ])dnl
1674 dnl ---------------------------------------------------------------------------
1675 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
1676 dnl ---------------
1677 dnl Construct the list of include-options according to whether we're building
1678 dnl in the source directory or using '--srcdir=DIR' option.
1679 AC_DEFUN([CF_INCLUDE_DIRS],
1680 [
1681 if test "$srcdir" != "."; then
1682         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
1683 fi
1684 CPPFLAGS="-I../include $CPPFLAGS"
1685 if test "$srcdir" != "."; then
1686         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
1687 fi
1688 CPPFLAGS="-I. $CPPFLAGS"
1689 AC_SUBST(CPPFLAGS)
1690 ])dnl
1691 dnl ---------------------------------------------------------------------------
1692 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
1693 dnl ---------------
1694 dnl prompt for/fill-in useful install-program options
1695 AC_DEFUN([CF_INSTALL_OPTS],
1696 [
1697 CF_INSTALL_OPT_S
1698 CF_INSTALL_OPT_P
1699 CF_INSTALL_OPT_O
1700 ])dnl
1701 dnl ---------------------------------------------------------------------------
1702 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
1703 dnl ----------------
1704 dnl Almost all "install" programs default to the current user's ownership.
1705 dnl Almost - MINIX is an exception.
1706 AC_DEFUN([CF_INSTALL_OPT_O],
1707 [
1708 AC_MSG_CHECKING(if install needs to be told about ownership)
1709 case `$ac_config_guess` in
1710 (*minix)
1711         with_install_o=yes
1712         ;;
1713 (*)
1714         with_install_o=no
1715         ;;
1716 esac
1717
1718 AC_MSG_RESULT($with_install_o)
1719 if test "x$with_install_o" = xyes
1720 then
1721         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'`
1722 else
1723         INSTALL_OPT_O=
1724 fi
1725
1726 AC_SUBST(INSTALL_OPT_O)
1727 ])dnl
1728 dnl ---------------------------------------------------------------------------
1729 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
1730 dnl ----------------
1731 dnl Some install-programs accept a "-p" option to preserve file modification
1732 dnl timestamps.  That can be useful as an install option, as well as a way to
1733 dnl avoid the need for ranlib after copying a static archive.
1734 AC_DEFUN([CF_INSTALL_OPT_P],
1735 [
1736 : ${INSTALL:=install}
1737 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
1738         rm -rf conftest*
1739         date >conftest.in
1740         mkdir conftest.out
1741         sleep 3
1742         if $INSTALL -p conftest.in conftest.out 2>/dev/null
1743         then
1744                 if test -f conftest.out/conftest.in
1745                 then
1746                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
1747                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
1748                         if test -s conftest.err
1749                         then
1750                                 cf_cv_install_p=no
1751                         else
1752                                 cf_cv_install_p=yes
1753                         fi
1754                 else
1755                         cf_cv_install_p=no
1756                 fi
1757         else
1758                 cf_cv_install_p=no
1759         fi
1760         rm -rf conftest*
1761 ])
1762 ])dnl
1763 dnl ---------------------------------------------------------------------------
1764 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
1765 dnl ----------------
1766 dnl By default, we should strip executables which are installed, but leave the
1767 dnl ability to suppress that for unit-testing.
1768 AC_DEFUN([CF_INSTALL_OPT_S],
1769 [
1770 AC_MSG_CHECKING(if you want to install stripped executables)
1771 CF_ARG_DISABLE(stripping,
1772         [  --disable-stripping     do not strip (debug info) installed executables],
1773         [with_stripping=no],
1774         [with_stripping=yes])
1775 AC_MSG_RESULT($with_stripping)
1776
1777 if test "$with_stripping" = yes
1778 then
1779         INSTALL_OPT_S="-s"
1780 else
1781         INSTALL_OPT_S=
1782 fi
1783 AC_SUBST(INSTALL_OPT_S)
1784 ])dnl
1785 dnl ---------------------------------------------------------------------------
1786 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
1787 dnl -----------------
1788 dnl Check if the given compiler is really the Intel compiler for Linux.  It
1789 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
1790 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
1791 dnl
1792 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1793 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1794 dnl the wrappers for gcc and g++ warnings.
1795 dnl
1796 dnl $1 = GCC (default) or GXX
1797 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
1798 dnl $3 = CFLAGS (default) or CXXFLAGS
1799 AC_DEFUN([CF_INTEL_COMPILER],[
1800 AC_REQUIRE([AC_CANONICAL_HOST])
1801 ifelse([$2],,INTEL_COMPILER,[$2])=no
1802
1803 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1804         case $host_os in
1805         (linux*|gnu*)
1806                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
1807                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1808                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
1809                 AC_TRY_COMPILE([],[
1810 #ifdef __INTEL_COMPILER
1811 #else
1812 make an error
1813 #endif
1814 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
1815 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
1816 ],[])
1817                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1818                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
1819                 ;;
1820         esac
1821 fi
1822 ])dnl
1823 dnl ---------------------------------------------------------------------------
1824 dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
1825 dnl ------------
1826 dnl Add checks for large file support.
1827 AC_DEFUN([CF_LARGEFILE],[
1828 ifdef([AC_FUNC_FSEEKO],[
1829         AC_SYS_LARGEFILE
1830         if test "$enable_largefile" != no ; then
1831         AC_FUNC_FSEEKO
1832
1833         # Normally we would collect these definitions in the config.h,
1834         # but (like _XOPEN_SOURCE), some environments rely on having these
1835         # defined before any of the system headers are included.  Another
1836         # case comes up with C++, e.g., on AIX the compiler compiles the
1837         # header files by themselves before looking at the body files it is
1838         # told to compile.  For ncurses, those header files do not include
1839         # the config.h
1840         if test "$ac_cv_sys_large_files" != no
1841         then
1842                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
1843         fi
1844         if test "$ac_cv_sys_largefile_source" != no
1845         then
1846                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
1847         fi
1848         if test "$ac_cv_sys_file_offset_bits" != no
1849         then
1850                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
1851         fi
1852
1853         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
1854                 AC_TRY_COMPILE([
1855 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
1856 #include <sys/types.h>
1857 #include <dirent.h>
1858                 ],[
1859                 /* if transitional largefile support is setup, this is true */
1860                 extern struct dirent64 * readdir(DIR *);
1861                 struct dirent64 *x = readdir((DIR *)0);
1862                 struct dirent *y = readdir((DIR *)0);
1863                 int z = x - y;
1864                 ],
1865                 [cf_cv_struct_dirent64=yes],
1866                 [cf_cv_struct_dirent64=no])
1867         ])
1868         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
1869         fi
1870 ])
1871 ])
1872 dnl ---------------------------------------------------------------------------
1873 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
1874 dnl ---------------
1875 dnl For the given system and compiler, find the compiler flags to pass to the
1876 dnl loader to use the "rpath" feature.
1877 AC_DEFUN([CF_LD_RPATH_OPT],
1878 [
1879 AC_REQUIRE([CF_CHECK_CACHE])
1880
1881 LD_RPATH_OPT=
1882 if test "x$cf_cv_enable_rpath" != xno
1883 then
1884         AC_MSG_CHECKING(for an rpath option)
1885         case $cf_cv_system_name in
1886         (irix*)
1887                 if test "$GCC" = yes; then
1888                         LD_RPATH_OPT="-Wl,-rpath,"
1889                 else
1890                         LD_RPATH_OPT="-rpath "
1891                 fi
1892                 ;;
1893         (linux*|gnu*|k*bsd*-gnu|freebsd*)
1894                 LD_RPATH_OPT="-Wl,-rpath,"
1895                 ;;
1896         (openbsd[[2-9]].*|mirbsd*)
1897                 LD_RPATH_OPT="-Wl,-rpath,"
1898                 ;;
1899         (dragonfly*)
1900                 LD_RPATH_OPT="-rpath "
1901                 ;;
1902         (netbsd*)
1903                 LD_RPATH_OPT="-Wl,-rpath,"
1904                 ;;
1905         (osf*|mls+*)
1906                 LD_RPATH_OPT="-rpath "
1907                 ;;
1908         (solaris2*)
1909                 LD_RPATH_OPT="-R"
1910                 ;;
1911         (*)
1912                 ;;
1913         esac
1914         AC_MSG_RESULT($LD_RPATH_OPT)
1915
1916         case "x$LD_RPATH_OPT" in
1917         (x-R*)
1918                 AC_MSG_CHECKING(if we need a space after rpath option)
1919                 cf_save_LIBS="$LIBS"
1920                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
1921                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
1922                 LIBS="$cf_save_LIBS"
1923                 AC_MSG_RESULT($cf_rpath_space)
1924                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
1925                 ;;
1926         esac
1927 fi
1928 ])dnl
1929 dnl ---------------------------------------------------------------------------
1930 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
1931 dnl ---------------
1932 dnl Construct a search-list of directories for a nonstandard library-file
1933 dnl
1934 dnl Parameters
1935 dnl     $1 = the variable to return as result
1936 dnl     $2 = the package name
1937 AC_DEFUN([CF_LIBRARY_PATH],
1938 [
1939 $1=
1940 cf_library_path_list=""
1941 if test -n "${LDFLAGS}${LIBS}" ; then
1942         for cf_library_path in $LDFLAGS $LIBS
1943         do
1944                 case $cf_library_path in
1945                 (-L*)
1946                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
1947                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
1948                         cf_library_path_list="$cf_library_path_list [$]$1"
1949                         ;;
1950                 esac
1951         done
1952 fi
1953
1954 CF_SUBDIR_PATH($1,$2,lib)
1955
1956 $1="$cf_library_path_list [$]$1"
1957 ])dnl
1958 dnl ---------------------------------------------------------------------------
1959 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
1960 dnl -------------
1961 dnl Compute the library-prefix for the given host system
1962 dnl $1 = variable to set
1963 define([CF_LIB_PREFIX],
1964 [
1965         case $cf_cv_system_name in
1966         (OS/2*|os2*)
1967                 if test "$DFT_LWR_MODEL" = libtool; then
1968                         LIB_PREFIX='lib'
1969                 else
1970                         LIB_PREFIX=''
1971                 fi
1972                 ;;
1973         (*)     LIB_PREFIX='lib'
1974                 ;;
1975         esac
1976 ifelse($1,,,[$1=$LIB_PREFIX])
1977         AC_SUBST(LIB_PREFIX)
1978 ])dnl
1979 dnl ---------------------------------------------------------------------------
1980 dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
1981 dnl -------------
1982 dnl Compute the library file-suffix from the given model name
1983 dnl $1 = model name
1984 dnl $2 = variable to set (the nominal library suffix)
1985 dnl $3 = dependency variable to set (actual filename)
1986 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
1987 AC_DEFUN([CF_LIB_SUFFIX],
1988 [
1989         case X$1 in
1990         (Xlibtool)
1991                 $2='.la'
1992                 $3=[$]$2
1993                 ;;
1994         (Xdebug)
1995                 $2='_g.a'
1996                 $3=[$]$2
1997                 ;;
1998         (Xprofile)
1999                 $2='_p.a'
2000                 $3=[$]$2
2001                 ;;
2002         (Xshared)
2003                 case $cf_cv_system_name in
2004                 (aix[[5-7]]*)
2005                         $2='.so'
2006                         $3=[$]$2
2007                         ;;
2008                 (cygwin*|msys*|mingw*)
2009                         $2='.dll'
2010                         $3='.dll.a'
2011                         ;;
2012                 (darwin*)
2013                         $2='.dylib'
2014                         $3=[$]$2
2015                         ;;
2016                 (hpux*)
2017                         case $target in
2018                         (ia64*)
2019                                 $2='.so'
2020                                 $3=[$]$2
2021                                 ;;
2022                         (*)
2023                                 $2='.sl'
2024                                 $3=[$]$2
2025                                 ;;
2026                         esac
2027                         ;;
2028                 (*)
2029                         $2='.so'
2030                         $3=[$]$2
2031                         ;;
2032                 esac
2033                 ;;
2034         (*)
2035                 $2='.a'
2036                 $3=[$]$2
2037                 ;;
2038         esac
2039         if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
2040         then
2041                 $2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
2042                 $3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
2043         fi
2044 ])dnl
2045 dnl ---------------------------------------------------------------------------
2046 dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
2047 dnl -----------
2048 dnl Compute the string to append to -library from the given model name
2049 dnl $1 = model name
2050 dnl $2 = variable to set
2051 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
2052 AC_DEFUN([CF_LIB_TYPE],
2053 [
2054         case $1 in
2055         (libtool) $2=''   ;;
2056         (normal)  $2=''   ;;
2057         (debug)   $2='_g' ;;
2058         (profile) $2='_p' ;;
2059         (shared)  $2=''   ;;
2060         esac
2061         test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
2062 ])dnl
2063 dnl ---------------------------------------------------------------------------
2064 dnl CF_LINK_DATAONLY version: 12 updated: 2017/07/23 17:46:07
2065 dnl ----------------
2066 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
2067 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
2068 dnl have to provide wrappers for global tables to ensure they're linked
2069 dnl properly.
2070 AC_DEFUN([CF_LINK_DATAONLY],
2071 [
2072 AC_MSG_CHECKING([if data-only library module links])
2073 AC_CACHE_VAL(cf_cv_link_dataonly,[
2074         rm -f conftest.a
2075         cat >conftest.$ac_ext <<EOF
2076 #line __oline__ "configure"
2077 int     testdata[[3]] = { 123, 456, 789 };
2078 EOF
2079         if AC_TRY_EVAL(ac_compile) ; then
2080                 mv conftest.o data.o && \
2081                 ( $AR $ARFLAGS conftest.a data.o ) 2>&AC_FD_CC 1>/dev/null
2082         fi
2083         rm -f conftest.$ac_ext data.o
2084         cat >conftest.$ac_ext <<EOF
2085 #line __oline__ "configure"
2086 int     testfunc(void)
2087 {
2088 #if defined(NeXT)
2089         ${cf_cv_main_return:-return}(1);        /* I'm told this linker is broken */
2090 #else
2091         extern int testdata[[3]];
2092         return testdata[[0]] == 123
2093            &&  testdata[[1]] == 456
2094            &&  testdata[[2]] == 789;
2095 #endif
2096 }
2097 EOF
2098         if AC_TRY_EVAL(ac_compile); then
2099                 mv conftest.o func.o && \
2100                 ( $AR $ARFLAGS conftest.a func.o ) 2>&AC_FD_CC 1>/dev/null
2101         fi
2102         rm -f conftest.$ac_ext func.o
2103         ( eval $RANLIB conftest.a ) 2>&AC_FD_CC >/dev/null
2104         cf_saveLIBS="$LIBS"
2105         LIBS="conftest.a $LIBS"
2106         AC_TRY_RUN([
2107         int main(void)
2108         {
2109                 extern int testfunc();
2110                 ${cf_cv_main_return:-return} (!testfunc());
2111         }
2112         ],
2113         [cf_cv_link_dataonly=yes],
2114         [cf_cv_link_dataonly=no],
2115         [cf_cv_link_dataonly=unknown])
2116         LIBS="$cf_saveLIBS"
2117         ])
2118 AC_MSG_RESULT($cf_cv_link_dataonly)
2119
2120 if test "$cf_cv_link_dataonly" = no ; then
2121         AC_DEFINE(BROKEN_LINKER,1,[if data-only library module does not link])
2122         BROKEN_LINKER=1
2123 fi
2124
2125 ])dnl
2126 dnl ---------------------------------------------------------------------------
2127 dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
2128 dnl ------------
2129 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
2130 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
2131 dnl (GNU 'make' does both, something POSIX 'make', which happens to make the
2132 dnl ${MAKEFLAGS} variable incompatible because it adds the assignments :-)
2133 AC_DEFUN([CF_MAKEFLAGS],
2134 [
2135 AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
2136         cf_cv_makeflags=''
2137         for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
2138         do
2139                 cat >cf_makeflags.tmp <<CF_EOF
2140 SHELL = $SHELL
2141 all :
2142         @ echo '.$cf_option'
2143 CF_EOF
2144                 cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[   ]]*$,,'`
2145                 case "$cf_result" in
2146                 (.*k|.*kw)
2147                         cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
2148                         case "$cf_result" in
2149                         (.*CC=*)        cf_cv_makeflags=
2150                                 ;;
2151                         (*)     cf_cv_makeflags=$cf_option
2152                                 ;;
2153                         esac
2154                         break
2155                         ;;
2156                 (.-)
2157                         ;;
2158                 (*)
2159                         CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
2160                         ;;
2161                 esac
2162         done
2163         rm -f cf_makeflags.tmp
2164 ])
2165
2166 AC_SUBST(cf_cv_makeflags)
2167 ])dnl
2168 dnl ---------------------------------------------------------------------------
2169 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2170 dnl ------------
2171 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
2172 dnl a monocase filesystem.
2173 AC_DEFUN([CF_MAKE_TAGS],[
2174 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2175
2176 AC_CHECK_PROGS(CTAGS, exctags ctags)
2177 AC_CHECK_PROGS(ETAGS, exetags etags)
2178
2179 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2180
2181 if test "$cf_cv_mixedcase" = yes ; then
2182         AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2183 else
2184         MAKE_UPPER_TAGS=no
2185 fi
2186
2187 if test "$MAKE_UPPER_TAGS" = yes ; then
2188         MAKE_UPPER_TAGS=
2189 else
2190         MAKE_UPPER_TAGS="#"
2191 fi
2192
2193 if test "$MAKE_LOWER_TAGS" = yes ; then
2194         MAKE_LOWER_TAGS=
2195 else
2196         MAKE_LOWER_TAGS="#"
2197 fi
2198
2199 AC_SUBST(CTAGS)
2200 AC_SUBST(ETAGS)
2201
2202 AC_SUBST(MAKE_UPPER_TAGS)
2203 AC_SUBST(MAKE_LOWER_TAGS)
2204 ])dnl
2205 dnl ---------------------------------------------------------------------------
2206 dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
2207 dnl ----------------------
2208 dnl Check if the file-system supports mixed-case filenames.  If we're able to
2209 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2210 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2211 [
2212 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2213 if test "$cross_compiling" = yes ; then
2214         case $target_alias in
2215         (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
2216                 cf_cv_mixedcase=no
2217                 ;;
2218         (*)
2219                 cf_cv_mixedcase=yes
2220                 ;;
2221         esac
2222 else
2223         rm -f conftest CONFTEST
2224         echo test >conftest
2225         if test -f CONFTEST ; then
2226                 cf_cv_mixedcase=no
2227         else
2228                 cf_cv_mixedcase=yes
2229         fi
2230         rm -f conftest CONFTEST
2231 fi
2232 ])
2233 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2234 ])dnl
2235 dnl ---------------------------------------------------------------------------
2236 dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
2237 dnl ----------
2238 dnl Check for a working mkstemp.  This creates two files, checks that they are
2239 dnl successfully created and distinct (AmigaOS apparently fails on the last).
2240 AC_DEFUN([CF_MKSTEMP],[
2241 AC_CHECK_HEADERS( \
2242 unistd.h \
2243 )
2244 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
2245 rm -rf conftest*
2246 AC_TRY_RUN([
2247 #include <sys/types.h>
2248 #ifdef HAVE_UNISTD_H
2249 #include <unistd.h>
2250 #endif
2251 #include <stdlib.h>
2252 #include <stdio.h>
2253 #include <string.h>
2254 #include <sys/stat.h>
2255 int main(void)
2256 {
2257         char *tmpl = "conftestXXXXXX";
2258         char name[2][80];
2259         int n;
2260         int result = 0;
2261         int fd;
2262         struct stat sb;
2263
2264         umask(077);
2265         for (n = 0; n < 2; ++n) {
2266                 strcpy(name[n], tmpl);
2267                 if ((fd = mkstemp(name[n])) >= 0) {
2268                         if (!strcmp(name[n], tmpl)
2269                          || stat(name[n], &sb) != 0
2270                          || (sb.st_mode & S_IFMT) != S_IFREG
2271                          || (sb.st_mode & 077) != 0) {
2272                                 result = 1;
2273                         }
2274                         close(fd);
2275                 }
2276         }
2277         if (result == 0
2278          && !strcmp(name[0], name[1]))
2279                 result = 1;
2280         ${cf_cv_main_return:-return}(result);
2281 }
2282 ],[cf_cv_func_mkstemp=yes
2283 ],[cf_cv_func_mkstemp=no
2284 ],[cf_cv_func_mkstemp=maybe])
2285 ])
2286 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
2287         AC_CHECK_FUNC(mkstemp)
2288 fi
2289 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
2290         AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
2291 fi
2292 ])dnl
2293 dnl ---------------------------------------------------------------------------
2294 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2295 dnl ----------
2296 dnl Write a debug message to config.log, along with the line number in the
2297 dnl configure script.
2298 AC_DEFUN([CF_MSG_LOG],[
2299 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2300 ])dnl
2301 dnl ---------------------------------------------------------------------------
2302 dnl CF_NCURSES_ADDON version: 5 updated: 2015/04/26 18:06:58
2303 dnl ----------------
2304 dnl Configure an ncurses add-on, built outside the ncurses tree.
2305 AC_DEFUN([CF_NCURSES_ADDON],[
2306 AC_REQUIRE([CF_NCURSES_CONFIG])
2307
2308 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
2309
2310 AC_MSG_CHECKING(if you want wide-character code)
2311 AC_ARG_ENABLE(widec,
2312         [  --enable-widec          compile with wide-char/UTF-8 code],
2313         [with_widec=$enableval],
2314         [with_widec=no])
2315 AC_MSG_RESULT($with_widec)
2316 if test "$with_widec" = yes ; then
2317         CF_UTF8_LIB
2318         CF_NCURSES_CONFIG(ncursesw)
2319 else
2320         CF_NCURSES_CONFIG(ncurses)
2321 fi
2322
2323 if test "$NCURSES_CONFIG_PKG" != none ; then
2324         cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
2325
2326         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2327         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2328         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2329
2330         cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
2331         if test -z "$cf_cv_abi_version"
2332         then
2333                 cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
2334         fi
2335
2336 elif test "$NCURSES_CONFIG" != none ; then
2337
2338         cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
2339
2340         NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
2341         NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
2342         NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
2343
2344         # ABI version is not available from headers
2345         cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
2346
2347 else
2348
2349         for cf_name in MAJOR MINOR PATCH
2350         do
2351         cat >conftest.$ac_ext <<CF_EOF
2352         #include <${cf_cv_ncurses_header:-curses.h}>
2353         AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
2354 CF_EOF
2355                 cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
2356                 AC_TRY_EVAL(cf_try)
2357                 if test -f conftest.out ; then
2358                         cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[  ]][[    ]]*//"`
2359                         eval NCURSES_$cf_name=\"$cf_result\"
2360                         # cat conftest.$ac_ext
2361                         # cat conftest.out
2362                 fi
2363         done
2364
2365         cf_cv_abi_version=${NCURSES_MAJOR}
2366
2367 fi
2368
2369 cf_cv_rel_version=${NCURSES_MAJOR}.${NCURSES_MINOR}
2370
2371 dnl Show the computed version, for logging
2372 cf_cv_timestamp=`date`
2373
2374 AC_MSG_RESULT(Configuring NCURSES $cf_cv_rel_version ABI $cf_cv_abi_version ($cf_cv_timestamp))
2375
2376 dnl We need these values in the generated headers
2377 AC_SUBST(NCURSES_MAJOR)
2378 AC_SUBST(NCURSES_MINOR)
2379 AC_SUBST(NCURSES_PATCH)
2380
2381 dnl We need these values in the generated makefiles
2382 AC_SUBST(cf_cv_rel_version)
2383 AC_SUBST(cf_cv_abi_version)
2384
2385 dnl FIXME - not needed for Ada95
2386 AC_SUBST(cf_cv_builtin_bool)
2387 AC_SUBST(cf_cv_header_stdbool_h)
2388 AC_SUBST(cf_cv_type_of_bool)dnl
2389
2390 ])
2391 dnl ---------------------------------------------------------------------------
2392 dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
2393 dnl -------------------
2394 dnl Check if we can compile with ncurses' header file
2395 dnl $1 is the cache variable to set
2396 dnl $2 is the header-file to include
2397 dnl $3 is the root name (ncurses or ncursesw)
2398 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2399         AC_TRY_COMPILE([
2400 ]ifelse($3,ncursesw,[
2401 #define _XOPEN_SOURCE_EXTENDED
2402 #undef  HAVE_LIBUTF8_H  /* in case we used CF_UTF8_LIB */
2403 #define HAVE_LIBUTF8_H  /* to force ncurses' header file to use cchar_t */
2404 ])[
2405 #include <$2>],[
2406 #ifdef NCURSES_VERSION
2407 ]ifelse($3,ncursesw,[
2408 #ifndef WACS_BSSB
2409         make an error
2410 #endif
2411 ])[
2412 printf("%s\n", NCURSES_VERSION);
2413 #else
2414 #ifdef __NCURSES_H
2415 printf("old\n");
2416 #else
2417         make an error
2418 #endif
2419 #endif
2420         ]
2421         ,[$1=$2]
2422         ,[$1=no])
2423 ])dnl
2424 dnl ---------------------------------------------------------------------------
2425 dnl CF_NCURSES_CONFIG version: 21 updated: 2018/06/20 20:23:13
2426 dnl -----------------
2427 dnl Tie together the configure-script macros for ncurses, preferring these in
2428 dnl order:
2429 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2430 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2431 dnl c) just plain libraries
2432 dnl
2433 dnl $1 is the root library name (default: "ncurses")
2434 AC_DEFUN([CF_NCURSES_CONFIG],[
2435 AC_REQUIRE([CF_PKG_CONFIG])
2436 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2437 cf_have_ncuconfig=no
2438
2439 if test "x${PKG_CONFIG:=none}" != xnone; then
2440         AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2441         if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2442                 AC_MSG_RESULT(yes)
2443
2444                 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2445                 cf_have_ncuconfig=unknown
2446
2447                 cf_save_CPPFLAGS="$CPPFLAGS"
2448                 cf_save_LIBS="$LIBS"
2449
2450                 CF_ADD_CFLAGS(`$PKG_CONFIG --cflags $cf_ncuconfig_root`)
2451                 CF_ADD_LIBS(`$PKG_CONFIG --libs $cf_ncuconfig_root`)
2452
2453                 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2454                         [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2455                         [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2456                                 int main(void)
2457                                 { char *xx = curses_version(); return (xx == 0); }],
2458                                 [cf_have_ncuconfig=yes],
2459                                 [cf_have_ncuconfig=no],
2460                                 [cf_have_ncuconfig=maybe])],
2461                         [cf_have_ncuconfig=no])
2462                 AC_MSG_RESULT($cf_have_ncuconfig)
2463                 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2464                 if test "$cf_have_ncuconfig" != "yes"
2465                 then
2466                         CPPFLAGS="$cf_save_CPPFLAGS"
2467                         LIBS="$cf_save_LIBS"
2468                         NCURSES_CONFIG_PKG=none
2469                 else
2470                         AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2471                         NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2472                         CF_TERM_HEADER
2473                 fi
2474
2475         else
2476                 AC_MSG_RESULT(no)
2477                 NCURSES_CONFIG_PKG=none
2478         fi
2479 else
2480         NCURSES_CONFIG_PKG=none
2481 fi
2482
2483 if test "x$cf_have_ncuconfig" = "xno"; then
2484         cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2485
2486         CF_ACVERSION_CHECK(2.52,
2487                 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2488                 [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2489
2490         if test "$NCURSES_CONFIG" != none ; then
2491
2492                 CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
2493                 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2494
2495                 # even with config script, some packages use no-override for curses.h
2496                 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2497
2498                 dnl like CF_NCURSES_CPPFLAGS
2499                 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2500
2501                 dnl like CF_NCURSES_LIBS
2502                 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2503                 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2504
2505                 dnl like CF_NCURSES_VERSION
2506                 cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
2507
2508         else
2509
2510                 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2511                 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2512
2513         fi
2514 else
2515         NCURSES_CONFIG=none
2516 fi
2517 ])dnl
2518 dnl ---------------------------------------------------------------------------
2519 dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
2520 dnl -------------------
2521 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2522 dnl the CPPFLAGS variable so we can include its header.
2523 dnl
2524 dnl The header files may be installed as either curses.h, or ncurses.h (would
2525 dnl be obsolete, except that some packagers prefer this name to distinguish it
2526 dnl from a "native" curses implementation).  If not installed for overwrite,
2527 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2528 dnl /usr/include/ncurses), but someone may have installed overwriting the
2529 dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
2530 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2531 dnl the header.
2532 dnl
2533 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2534 dnl is already in the include-path, don't even bother with this, since we cannot
2535 dnl easily determine which file it is.  In this case, it has to be <curses.h>.
2536 dnl
2537 dnl The optional parameter gives the root name of the library, in case it is
2538 dnl not installed as the default curses library.  That is how the
2539 dnl wide-character version of ncurses is installed.
2540 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2541 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2542
2543 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2544 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2545
2546 test -n "$cf_cv_curses_dir" && \
2547 test "$cf_cv_curses_dir" != "no" && { \
2548   CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2549 }
2550
2551 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2552         cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2553         ( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
2554         for cf_header in $cf_header_list
2555         do
2556                 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2557                 test "$cf_cv_ncurses_h" != no && break
2558         done
2559 ])
2560
2561 CF_NCURSES_HEADER
2562 CF_TERM_HEADER
2563
2564 # some applications need this, but should check for NCURSES_VERSION
2565 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2566
2567 CF_NCURSES_VERSION
2568 ])dnl
2569 dnl ---------------------------------------------------------------------------
2570 dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
2571 dnl -----------------
2572 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2573 dnl variations of ncurses' installs.
2574 dnl
2575 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2576 AC_DEFUN([CF_NCURSES_HEADER],[
2577
2578 if test "$cf_cv_ncurses_h" != no ; then
2579         cf_cv_ncurses_header=$cf_cv_ncurses_h
2580 else
2581
2582 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2583         test -n "$verbose" && echo
2584         CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2585         test -n "$verbose" && echo search path $cf_search
2586         cf_save2_CPPFLAGS="$CPPFLAGS"
2587         for cf_incdir in $cf_search
2588         do
2589                 CF_ADD_INCDIR($cf_incdir)
2590                 for cf_header in \
2591                         ncurses.h \
2592                         curses.h
2593                 do
2594                         CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2595                         if test "$cf_cv_ncurses_h2" != no ; then
2596                                 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2597                                 test -n "$verbose" && echo $ac_n "      ... found $ac_c" 1>&AC_FD_MSG
2598                                 break
2599                         fi
2600                         test -n "$verbose" && echo "    ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2601                 done
2602                 CPPFLAGS="$cf_save2_CPPFLAGS"
2603                 test "$cf_cv_ncurses_h2" != no && break
2604         done
2605         test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2606         ])
2607
2608         CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2609         cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
2610         if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
2611                 cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
2612         fi
2613         CF_ADD_INCDIR($cf_1st_incdir)
2614
2615 fi
2616
2617 # Set definitions to allow ifdef'ing for ncurses.h
2618
2619 case $cf_cv_ncurses_header in
2620 (*ncurses.h)
2621         AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2622         ;;
2623 esac
2624
2625 case $cf_cv_ncurses_header in
2626 (ncurses/curses.h|ncurses/ncurses.h)
2627         AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2628         ;;
2629 (ncursesw/curses.h|ncursesw/ncurses.h)
2630         AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2631         ;;
2632 esac
2633
2634 ])dnl
2635 dnl ---------------------------------------------------------------------------
2636 dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
2637 dnl ---------------
2638 dnl Look for the ncurses library.  This is a little complicated on Linux,
2639 dnl because it may be linked with the gpm (general purpose mouse) library.
2640 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2641 dnl unusable with ncurses.  However, we don't want to link with gpm unless
2642 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2643 dnl and the linker will record a dependency.
2644 dnl
2645 dnl The optional parameter gives the root name of the library, in case it is
2646 dnl not installed as the default curses library.  That is how the
2647 dnl wide-character version of ncurses is installed.
2648 AC_DEFUN([CF_NCURSES_LIBS],
2649 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2650
2651 cf_nculib_root=ifelse($1,,ncurses,$1)
2652         # This works, except for the special case where we find gpm, but
2653         # ncurses is in a nonstandard location via $LIBS, and we really want
2654         # to link gpm.
2655 cf_ncurses_LIBS=""
2656 cf_ncurses_SAVE="$LIBS"
2657 AC_CHECK_LIB(gpm,Gpm_Open,
2658         [AC_CHECK_LIB(gpm,initscr,
2659                 [LIBS="$cf_ncurses_SAVE"],
2660                 [cf_ncurses_LIBS="-lgpm"])])
2661
2662 case $host_os in
2663 (freebsd*)
2664         # This is only necessary if you are linking against an obsolete
2665         # version of ncurses (but it should do no harm, since it's static).
2666         if test "$cf_nculib_root" = ncurses ; then
2667                 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2668         fi
2669         ;;
2670 esac
2671
2672 CF_ADD_LIBS($cf_ncurses_LIBS)
2673
2674 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
2675 then
2676         CF_ADD_LIBS(-l$cf_nculib_root)
2677 else
2678         CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2679                 [#include <${cf_cv_ncurses_header:-curses.h}>],
2680                 [initscr()],
2681                 initscr)
2682 fi
2683
2684 if test -n "$cf_ncurses_LIBS" ; then
2685         AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2686         cf_ncurses_SAVE="$LIBS"
2687         for p in $cf_ncurses_LIBS ; do
2688                 q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
2689                 if test "$q" != "$LIBS" ; then
2690                         LIBS="$q"
2691                 fi
2692         done
2693         AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2694                 [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
2695                 [AC_MSG_RESULT(yes)],
2696                 [AC_MSG_RESULT(no)
2697                  LIBS="$cf_ncurses_SAVE"])
2698 fi
2699
2700 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2701 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2702 ])dnl
2703 dnl ---------------------------------------------------------------------------
2704 dnl CF_NCURSES_VERSION version: 15 updated: 2017/05/09 19:26:10
2705 dnl ------------------
2706 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2707 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
2708 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2709 AC_DEFUN([CF_NCURSES_VERSION],
2710 [
2711 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2712 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2713         cf_cv_ncurses_version=no
2714         cf_tempfile=out$$
2715         rm -f $cf_tempfile
2716         AC_TRY_RUN([
2717 #include <${cf_cv_ncurses_header:-curses.h}>
2718 #include <stdio.h>
2719 int main(void)
2720 {
2721         FILE *fp = fopen("$cf_tempfile", "w");
2722 #ifdef NCURSES_VERSION
2723 # ifdef NCURSES_VERSION_PATCH
2724         fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2725 # else
2726         fprintf(fp, "%s\n", NCURSES_VERSION);
2727 # endif
2728 #else
2729 # ifdef __NCURSES_H
2730         fprintf(fp, "old\n");
2731 # else
2732         make an error
2733 # endif
2734 #endif
2735         ${cf_cv_main_return:-return}(0);
2736 }],[
2737         cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2738
2739         # This will not work if the preprocessor splits the line after the
2740         # Autoconf token.  The 'unproto' program does that.
2741         cat > conftest.$ac_ext <<EOF
2742 #include <${cf_cv_ncurses_header:-curses.h}>
2743 #undef Autoconf
2744 #ifdef NCURSES_VERSION
2745 Autoconf NCURSES_VERSION
2746 #else
2747 #ifdef __NCURSES_H
2748 Autoconf "old"
2749 #endif
2750 ;
2751 #endif
2752 EOF
2753         cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2754         AC_TRY_EVAL(cf_try)
2755         if test -f conftest.out ; then
2756                 cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
2757                 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2758                 rm -f conftest.out
2759         fi
2760 ])
2761         rm -f $cf_tempfile
2762 ])
2763 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2764 ])dnl
2765 dnl ---------------------------------------------------------------------------
2766 dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
2767 dnl -------------
2768 dnl Compute the object-directory name from the given model name
2769 AC_DEFUN([CF_OBJ_SUBDIR],
2770 [
2771         case $1 in
2772         (libtool) $2='obj_lo'  ;;
2773         (normal)  $2='objects' ;;
2774         (debug)   $2='obj_g' ;;
2775         (profile) $2='obj_p' ;;
2776         (shared)
2777                 case $cf_cv_system_name in
2778                 (cygwin|msys)
2779                         $2='objects' ;;
2780                 (*)
2781                         $2='obj_s' ;;
2782                 esac
2783         esac
2784 ])dnl
2785 dnl ---------------------------------------------------------------------------
2786 dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
2787 dnl ----------
2788 dnl Provide a value for the $PATH and similar separator (or amend the value
2789 dnl as provided in autoconf 2.5x).
2790 AC_DEFUN([CF_PATHSEP],
2791 [
2792         AC_MSG_CHECKING(for PATH separator)
2793         case $cf_cv_system_name in
2794         (os2*)  PATH_SEPARATOR=';'  ;;
2795         (*)     ${PATH_SEPARATOR:=':'}  ;;
2796         esac
2797 ifelse([$1],,,[$1=$PATH_SEPARATOR])
2798         AC_SUBST(PATH_SEPARATOR)
2799         AC_MSG_RESULT($PATH_SEPARATOR)
2800 ])dnl
2801 dnl ---------------------------------------------------------------------------
2802 dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
2803 dnl --------------
2804 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
2805 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2806 dnl result begins with 'NONE'.  This is necessary to work around autoconf's
2807 dnl delayed evaluation of those symbols.
2808 AC_DEFUN([CF_PATH_SYNTAX],[
2809 if test "x$prefix" != xNONE; then
2810         cf_path_syntax="$prefix"
2811 else
2812         cf_path_syntax="$ac_default_prefix"
2813 fi
2814
2815 case ".[$]$1" in
2816 (.\[$]\(*\)*|.\'*\'*)
2817         ;;
2818 (..|./*|.\\*)
2819         ;;
2820 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
2821         ;;
2822 (.\[$]{*prefix}*|.\[$]{*dir}*)
2823         eval $1="[$]$1"
2824         case ".[$]$1" in
2825         (.NONE/*)
2826                 $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2827                 ;;
2828         esac
2829         ;;
2830 (.no|.NONE/*)
2831         $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
2832         ;;
2833 (*)
2834         ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
2835         ;;
2836 esac
2837 ])dnl
2838 dnl ---------------------------------------------------------------------------
2839 dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
2840 dnl -------------
2841 dnl Check for the package-config program, unless disabled by command-line.
2842 AC_DEFUN([CF_PKG_CONFIG],
2843 [
2844 AC_MSG_CHECKING(if you want to use pkg-config)
2845 AC_ARG_WITH(pkg-config,
2846         [  --with-pkg-config{=path} enable/disable use of pkg-config],
2847         [cf_pkg_config=$withval],
2848         [cf_pkg_config=yes])
2849 AC_MSG_RESULT($cf_pkg_config)
2850
2851 case $cf_pkg_config in
2852 (no)
2853         PKG_CONFIG=none
2854         ;;
2855 (yes)
2856         CF_ACVERSION_CHECK(2.52,
2857                 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
2858                 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
2859         ;;
2860 (*)
2861         PKG_CONFIG=$withval
2862         ;;
2863 esac
2864
2865 test -z "$PKG_CONFIG" && PKG_CONFIG=none
2866 if test "$PKG_CONFIG" != none ; then
2867         CF_PATH_SYNTAX(PKG_CONFIG)
2868 elif test "x$cf_pkg_config" != xno ; then
2869         AC_MSG_WARN(pkg-config is not installed)
2870 fi
2871
2872 AC_SUBST(PKG_CONFIG)
2873 ])dnl
2874 dnl ---------------------------------------------------------------------------
2875 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
2876 dnl -----------------
2877 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
2878 dnl
2879 dnl     POSIX.1-1990                            _POSIX_SOURCE
2880 dnl     POSIX.1-1990 and                        _POSIX_SOURCE and
2881 dnl             POSIX.2-1992 C-Language                 _POSIX_C_SOURCE=2
2882 dnl             Bindings Option
2883 dnl     POSIX.1b-1993                           _POSIX_C_SOURCE=199309L
2884 dnl     POSIX.1c-1996                           _POSIX_C_SOURCE=199506L
2885 dnl     X/Open 2000                             _POSIX_C_SOURCE=200112L
2886 dnl
2887 dnl Parameters:
2888 dnl     $1 is the nominal value for _POSIX_C_SOURCE
2889 AC_DEFUN([CF_POSIX_C_SOURCE],
2890 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
2891
2892 if test "$cf_cv_posix_visible" = no; then
2893
2894 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
2895
2896 cf_save_CFLAGS="$CFLAGS"
2897 cf_save_CPPFLAGS="$CPPFLAGS"
2898
2899 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
2900 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
2901
2902 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
2903         CF_MSG_LOG(if the symbol is already defined go no further)
2904         AC_TRY_COMPILE([#include <sys/types.h>],[
2905 #ifndef _POSIX_C_SOURCE
2906 make an error
2907 #endif],
2908         [cf_cv_posix_c_source=no],
2909         [cf_want_posix_source=no
2910          case .$cf_POSIX_C_SOURCE in
2911          (.[[12]]??*)
2912                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2913                 ;;
2914          (.2)
2915                 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
2916                 cf_want_posix_source=yes
2917                 ;;
2918          (.*)
2919                 cf_want_posix_source=yes
2920                 ;;
2921          esac
2922          if test "$cf_want_posix_source" = yes ; then
2923                 AC_TRY_COMPILE([#include <sys/types.h>],[
2924 #ifdef _POSIX_SOURCE
2925 make an error
2926 #endif],[],
2927                 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
2928          fi
2929          CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
2930          CFLAGS="$cf_trim_CFLAGS"
2931          CPPFLAGS="$cf_trim_CPPFLAGS"
2932          CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
2933          CF_MSG_LOG(if the second compile does not leave our definition intact error)
2934          AC_TRY_COMPILE([#include <sys/types.h>],[
2935 #ifndef _POSIX_C_SOURCE
2936 make an error
2937 #endif],,
2938          [cf_cv_posix_c_source=no])
2939          CFLAGS="$cf_save_CFLAGS"
2940          CPPFLAGS="$cf_save_CPPFLAGS"
2941         ])
2942 ])
2943
2944 if test "$cf_cv_posix_c_source" != no ; then
2945         CFLAGS="$cf_trim_CFLAGS"
2946         CPPFLAGS="$cf_trim_CPPFLAGS"
2947         CF_ADD_CFLAGS($cf_cv_posix_c_source)
2948 fi
2949
2950 fi # cf_cv_posix_visible
2951
2952 ])dnl
2953 dnl ---------------------------------------------------------------------------
2954 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
2955 dnl ----------------
2956 dnl POSIX documents test-macros which an application may set before any system
2957 dnl headers are included to make features available.
2958 dnl
2959 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
2960 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
2961 dnl recent features visible in the system header files unless the application
2962 dnl overrides the corresponding test-macros.  Doing that introduces portability
2963 dnl problems.
2964 dnl
2965 dnl This macro makes a special check for the symbols used for this, to avoid a
2966 dnl conflicting definition.
2967 AC_DEFUN([CF_POSIX_VISIBLE],
2968 [
2969 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
2970 AC_TRY_COMPILE([#include <stdio.h>],[
2971 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
2972         && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
2973         && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
2974         && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
2975 #error conflicting symbols found
2976 #endif
2977 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
2978 ])
2979 ])dnl
2980 dnl ---------------------------------------------------------------------------
2981 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
2982 dnl ----------
2983 dnl Check for archiver "ar".
2984 AC_DEFUN([CF_PROG_AR],[
2985 AC_CHECK_TOOL(AR, ar, ar)
2986 ])
2987 dnl ---------------------------------------------------------------------------
2988 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
2989 dnl -----------
2990 dnl Check for awk, ensure that the check found something.
2991 AC_DEFUN([CF_PROG_AWK],
2992 [
2993 AC_PROG_AWK
2994 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
2995 ])dnl
2996 dnl ---------------------------------------------------------------------------
2997 dnl CF_PROG_CC version: 4 updated: 2014/07/12 18:57:58
2998 dnl ----------
2999 dnl standard check for CC, plus followup sanity checks
3000 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3001 AC_DEFUN([CF_PROG_CC],[
3002 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3003 CF_GCC_VERSION
3004 CF_ACVERSION_CHECK(2.52,
3005         [AC_PROG_CC_STDC],
3006         [CF_ANSI_CC_REQD])
3007 CF_CC_ENV_FLAGS
3008 ])dnl
3009 dnl ---------------------------------------------------------------------------
3010 dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
3011 dnl --------------
3012 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
3013 dnl the output file can be renamed, and allows for a shell variable that can
3014 dnl be used later.  The parameter is either CC or CXX.  The result is the
3015 dnl cache variable:
3016 dnl     $cf_cv_prog_CC_c_o
3017 dnl     $cf_cv_prog_CXX_c_o
3018 dnl
3019 dnl $1 = compiler
3020 dnl $2 = compiler options, if any
3021 AC_DEFUN([CF_PROG_CC_C_O],
3022 [AC_REQUIRE([AC_PROG_CC])dnl
3023 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
3024 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
3025 [
3026 cat > conftest.$ac_ext <<CF_EOF
3027 int main(void)
3028 {
3029         ${cf_cv_main_return:-return}(0);
3030 }
3031 CF_EOF
3032 # We do the test twice because some compilers refuse to overwrite an
3033 # existing .o file with -o, though they will create one.
3034 ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
3035 if AC_TRY_EVAL(ac_try) &&
3036   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
3037 then
3038   eval cf_cv_prog_$1_c_o=yes
3039 else
3040   eval cf_cv_prog_$1_c_o=no
3041 fi
3042 rm -rf conftest*
3043 ])dnl
3044 if test $cf_cv_prog_$1_c_o = yes; then
3045   AC_MSG_RESULT([yes])
3046 else
3047   AC_MSG_RESULT([no])
3048 fi
3049 ])dnl
3050 dnl ---------------------------------------------------------------------------
3051 dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
3052 dnl -------------
3053 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
3054 dnl This macro adds a check to ensure the script found something.
3055 AC_DEFUN([CF_PROG_EGREP],
3056 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
3057         [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
3058                 then ac_cv_prog_egrep='grep -E'
3059                 else ac_cv_prog_egrep='egrep'
3060         fi])
3061         EGREP=$ac_cv_prog_egrep
3062         AC_SUBST([EGREP])
3063         test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
3064 ])dnl
3065 dnl ---------------------------------------------------------------------------
3066 dnl CF_PROG_EXT version: 14 updated: 2018/06/20 20:23:13
3067 dnl -----------
3068 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
3069 AC_DEFUN([CF_PROG_EXT],
3070 [
3071 AC_REQUIRE([CF_CHECK_CACHE])
3072 case $cf_cv_system_name in
3073 (os2*)
3074         CFLAGS="$CFLAGS -Zmt"
3075         CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
3076         CXXFLAGS="$CXXFLAGS -Zmt"
3077         # autoconf's macro sets -Zexe and suffix both, which conflict:w
3078         LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
3079         ac_cv_exeext=.exe
3080         ;;
3081 esac
3082
3083 AC_EXEEXT
3084 AC_OBJEXT
3085
3086 PROG_EXT="$EXEEXT"
3087 AC_SUBST(PROG_EXT)
3088 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
3089 ])dnl
3090 dnl ---------------------------------------------------------------------------
3091 dnl CF_PROG_GNAT version: 8 updated: 2018/11/10 19:47:04
3092 dnl ------------
3093 dnl Check for gnatmake, ensure that it is complete.
3094 AC_DEFUN([CF_PROG_GNAT],[
3095 cf_ada_make=gnatmake
3096 cf_ada_config="#"
3097 AC_CHECK_PROG(gnatmake_exists, $cf_ada_make, yes, no)
3098 if test "$ac_cv_prog_gnatmake_exists" = no; then
3099         cf_ada_make=
3100         cf_cv_prog_gnat_correct=no
3101 else
3102         AC_CHECK_PROG(gprconfig_exists, gprconfig, yes, no)
3103         if test "$ac_cv_prog_gprconfig_exists" = yes
3104         then
3105                 rm -rf conftest* *~conftest*
3106                 if mkdir conftest.src
3107                 then
3108                         cf_ada_config=""
3109                         cd conftest.src
3110                         for cf_gprconfig in Ada C
3111                         do
3112                                 AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
3113                                 if test $cf_gprconfig = C
3114                                 then
3115                                         for cf_gprconfig_param in \
3116                                                 $cf_gprconfig,,,,GNATGCC \
3117                                                 $cf_gprconfig,,,,GCC \
3118                                                 $cf_gprconfig
3119                                         do
3120                                                 cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3121                                                 test -n "$cf_gprconfig_value" && break
3122                                         done
3123                                 else
3124                                         cf_gprconfig_param=$cf_gprconfig
3125                                         cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
3126                                 fi
3127                                 if test -n "$cf_gprconfig_value"
3128                                 then
3129                                         eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
3130                                         AC_MSG_RESULT($cf_gprconfig_value)
3131                                 else
3132                                         AC_MSG_RESULT(missing)
3133                                         cf_ada_config="#"
3134                                         break
3135                                 fi
3136                         done
3137                         cd ..
3138                         rm -rf conftest* *~conftest*
3139                 fi
3140         else
3141                 # gprconfig is newer than gnatmake; we can continue...
3142                 cf_ada_config="##"
3143         fi
3144         if test "x$cf_ada_config" != "x#"
3145         then
3146                 CF_GNAT_VERSION
3147                 AC_CHECK_PROG(M4_exists, m4, yes, no)
3148                 if test "$ac_cv_prog_M4_exists" = no; then
3149                         cf_cv_prog_gnat_correct=no
3150                         echo Ada95 binding required program m4 not found. Ada95 binding disabled.
3151                 fi
3152                 if test "$cf_cv_prog_gnat_correct" = yes; then
3153                         AC_MSG_CHECKING(if GNAT works)
3154                         CF_GNAT_TRY_RUN([procedure conftest;],
3155 [with Text_IO;
3156 with GNAT.OS_Lib;
3157 procedure conftest is
3158 begin
3159    Text_IO.Put ("Hello World");
3160    Text_IO.New_Line;
3161    GNAT.OS_Lib.OS_Exit (0);
3162 end conftest;],[cf_cv_prog_gnat_correct=yes],[cf_cv_prog_gnat_correct=no])
3163                         AC_MSG_RESULT($cf_cv_prog_gnat_correct)
3164                 fi
3165         else
3166                 cf_cv_prog_gnat_correct=no
3167         fi
3168 fi
3169
3170 AC_SUBST(cf_ada_make)
3171 AC_SUBST(cf_ada_config)
3172 AC_SUBST(cf_ada_config_Ada)
3173 AC_SUBST(cf_ada_config_C)
3174 ])dnl
3175 dnl ---------------------------------------------------------------------------
3176 dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
3177 dnl ---------------
3178 dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
3179 dnl misc/tabset install won't work properly.  Usually this happens only when
3180 dnl using the fallback mkinstalldirs script
3181 AC_DEFUN([CF_PROG_INSTALL],
3182 [AC_PROG_INSTALL
3183 case $INSTALL in
3184 (/*)
3185         ;;
3186 (*)
3187         CF_DIRNAME(cf_dir,$INSTALL)
3188         test -z "$cf_dir" && cf_dir=.
3189         INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
3190         ;;
3191 esac
3192 ])dnl
3193 dnl ---------------------------------------------------------------------------
3194 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
3195 dnl ------------
3196 dnl Combine checks for "ln -s" and "ln -sf", updating $LN_S to include "-f"
3197 dnl option if it is supported.
3198 AC_DEFUN([CF_PROG_LN_S],[
3199 AC_PROG_LN_S
3200 AC_MSG_CHECKING(if $LN_S -f options work)
3201
3202 rm -f conf$$.src conf$$dst
3203 echo >conf$$.dst
3204 echo first >conf$$.src
3205 if $LN_S -f conf$$.src conf$$.dst 2>/dev/null; then
3206         cf_prog_ln_sf=yes
3207 else
3208         cf_prog_ln_sf=no
3209 fi
3210 rm -f conf$$.dst conf$$src
3211 AC_MSG_RESULT($cf_prog_ln_sf)
3212
3213 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
3214 ])dnl
3215 dnl ---------------------------------------------------------------------------
3216 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3217 dnl ----------------
3218 dnl Remove all -U and -D options that refer to the given symbol from a list
3219 dnl of C compiler options.  This works around the problem that not all
3220 dnl compilers process -U and -D options from left-to-right, so a -U option
3221 dnl cannot be used to cancel the effect of a preceding -D option.
3222 dnl
3223 dnl $1 = target (which could be the same as the source variable)
3224 dnl $2 = source (including '$')
3225 dnl $3 = symbol to remove
3226 define([CF_REMOVE_DEFINE],
3227 [
3228 $1=`echo "$2" | \
3229         sed     -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[[       ]]/ /g' \
3230                 -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
3231 ])dnl
3232 dnl ---------------------------------------------------------------------------
3233 dnl CF_REMOVE_LIB version: 1 updated: 2007/02/17 14:11:52
3234 dnl -------------
3235 dnl Remove the given library from the symbol
3236 dnl
3237 dnl $1 = target (which could be the same as the source variable)
3238 dnl $2 = source (including '$')
3239 dnl $3 = library to remove
3240 define([CF_REMOVE_LIB],
3241 [
3242 # remove $3 library from $2
3243 $1=`echo "$2" | sed -e 's/-l$3[[        ]]//g' -e 's/-l$3[$]//'`
3244 ])dnl
3245 dnl ---------------------------------------------------------------------------
3246 dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
3247 dnl --------------
3248 dnl --------------
3249 dnl Attempt to determine the appropriate CC/LD options for creating a shared
3250 dnl library.
3251 dnl
3252 dnl Notes:
3253 dnl a) ${LOCAL_LDFLAGS} is used to link executables that will run within
3254 dnl the build-tree, i.e., by making use of the libraries that are compiled in
3255 dnl $rel_builddir/lib We avoid compiling-in a $rel_builddir/lib path for the
3256 dnl shared library since that can lead to unexpected results at runtime.
3257 dnl b) ${LOCAL_LDFLAGS2} has the same intention but assumes that the shared
3258 dnl libraries are compiled in ../../lib
3259 dnl
3260 dnl The variable 'cf_cv_do_symlinks' is used to control whether we configure
3261 dnl to install symbolic links to the rel/abi versions of shared libraries.
3262 dnl
3263 dnl The variable 'cf_cv_shlib_version' controls whether we use the rel or abi
3264 dnl version when making symbolic links.
3265 dnl
3266 dnl The variable 'cf_cv_shlib_version_infix' controls whether shared library
3267 dnl version numbers are infix (ex: libncurses.<ver>.dylib) or postfix
3268 dnl (ex: libncurses.so.<ver>).
3269 dnl
3270 dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
3271 AC_DEFUN([CF_SHARED_OPTS],
3272 [
3273         AC_REQUIRE([CF_LD_RPATH_OPT])
3274
3275         RM_SHARED_OPTS=
3276         LOCAL_LDFLAGS=
3277         LOCAL_LDFLAGS2=
3278         LD_SHARED_OPTS=
3279         INSTALL_LIB="-m 644"
3280         : ${rel_builddir:=.}
3281
3282         shlibdir=$libdir
3283         AC_SUBST(shlibdir)
3284
3285         MAKE_DLLS="#"
3286         AC_SUBST(MAKE_DLLS)
3287
3288         cf_cv_do_symlinks=no
3289         cf_ld_rpath_opt=
3290         test "$cf_cv_enable_rpath" = yes && cf_ld_rpath_opt="$LD_RPATH_OPT"
3291
3292         AC_MSG_CHECKING(if release/abi version should be used for shared libs)
3293         AC_ARG_WITH(shlib-version,
3294         [  --with-shlib-version=X  Specify rel or abi version for shared libs],
3295         [test -z "$withval" && withval=auto
3296         case $withval in
3297         (yes)
3298                 cf_cv_shlib_version=auto
3299                 ;;
3300         (rel|abi|auto)
3301                 cf_cv_shlib_version=$withval
3302                 ;;
3303         (*)
3304                 AC_MSG_RESULT($withval)
3305                 AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
3306                 ;;
3307         esac
3308         ],[cf_cv_shlib_version=auto])
3309         AC_MSG_RESULT($cf_cv_shlib_version)
3310
3311         cf_cv_rm_so_locs=no
3312         cf_try_cflags=
3313
3314         # Some less-capable ports of gcc support only -fpic
3315         CC_SHARED_OPTS=
3316
3317         cf_try_fPIC=no
3318         if test "$GCC" = yes
3319         then
3320                 cf_try_fPIC=yes
3321         else
3322                 case $cf_cv_system_name in
3323                 (*linux*)       # e.g., PGI compiler
3324                         cf_try_fPIC=yes
3325                         ;;
3326                 esac
3327         fi
3328
3329         if test "$cf_try_fPIC" = yes
3330         then
3331                 AC_MSG_CHECKING(which $CC option to use)
3332                 cf_save_CFLAGS="$CFLAGS"
3333                 for CC_SHARED_OPTS in -fPIC -fpic ''
3334                 do
3335                         CFLAGS="$cf_save_CFLAGS $CC_SHARED_OPTS"
3336                         AC_TRY_COMPILE([#include <stdio.h>],[int x = 1],[break],[])
3337                 done
3338                 AC_MSG_RESULT($CC_SHARED_OPTS)
3339                 CFLAGS="$cf_save_CFLAGS"
3340         fi
3341
3342         cf_cv_shlib_version_infix=no
3343
3344         case $cf_cv_system_name in
3345         (aix4.[3-9]*|aix[[5-7]]*)
3346                 if test "$GCC" = yes; then
3347                         CC_SHARED_OPTS='-Wl,-brtl'
3348                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3349                 else
3350                         CC_SHARED_OPTS='-brtl'
3351                         # as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
3352                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
3353                 fi
3354                 ;;
3355         (beos*)
3356                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
3357                 ;;
3358         (cygwin*)
3359                 CC_SHARED_OPTS=
3360                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3361                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3362                 cf_cv_shlib_version=cygdll
3363                 cf_cv_shlib_version_infix=cygdll
3364                 shlibdir=$bindir
3365                 MAKE_DLLS=
3366                 cat >mk_shared_lib.sh <<-CF_EOF
3367                 #!$SHELL
3368                 SHARED_LIB=\[$]1
3369                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3370                 shift
3371                 cat <<-EOF
3372                 Linking shared library
3373                 ** SHARED_LIB \[$]SHARED_LIB
3374                 ** IMPORT_LIB \[$]IMPORT_LIB
3375 EOF
3376                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3377 CF_EOF
3378                 chmod +x mk_shared_lib.sh
3379                 ;;
3380         (msys*)
3381                 CC_SHARED_OPTS=
3382                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3383                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3384                 cf_cv_shlib_version=msysdll
3385                 cf_cv_shlib_version_infix=msysdll
3386                 shlibdir=$bindir
3387                 MAKE_DLLS=
3388                 cat >mk_shared_lib.sh <<-CF_EOF
3389                 #!$SHELL
3390                 SHARED_LIB=\[$]1
3391                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3392                 shift
3393                 cat <<-EOF
3394                 Linking shared library
3395                 ** SHARED_LIB \[$]SHARED_LIB
3396                 ** IMPORT_LIB \[$]IMPORT_LIB
3397 EOF
3398                 exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3399 CF_EOF
3400                 chmod +x mk_shared_lib.sh
3401                 ;;
3402         (darwin*)
3403                 cf_try_cflags="no-cpp-precomp"
3404                 CC_SHARED_OPTS="-dynamic"
3405                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
3406                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
3407                 cf_cv_shlib_version_infix=yes
3408                 AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
3409                         cf_save_LDFLAGS=$LDFLAGS
3410                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3411                         AC_TRY_LINK(, [int i;], cf_cv_ldflags_search_paths_first=yes, cf_cv_ldflags_search_paths_first=no)
3412                                 LDFLAGS=$cf_save_LDFLAGS])
3413                 if test $cf_cv_ldflags_search_paths_first = yes; then
3414                         LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
3415                 fi
3416                 ;;
3417         (hpux[[7-8]]*)
3418                 # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
3419                 if test "$GCC" != yes; then
3420                         CC_SHARED_OPTS='+Z'
3421                 fi
3422                 MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
3423                 INSTALL_LIB="-m 555"
3424                 ;;
3425         (hpux*)
3426                 # (tested with gcc 2.7.2 -- I don't have c89)
3427                 if test "$GCC" = yes; then
3428                         LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
3429                 else
3430                         CC_SHARED_OPTS='+Z'
3431                         LD_SHARED_OPTS='-Wl,+b,${libdir}'
3432                 fi
3433                 MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
3434                 # HP-UX shared libraries must be executable, and should be
3435                 # readonly to exploit a quirk in the memory manager.
3436                 INSTALL_LIB="-m 555"
3437                 ;;
3438         (interix*)
3439                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3440                 if test "$cf_cv_shlib_version" = rel; then
3441                         cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3442                 else
3443                         cf_shared_soname='`basename $[@]`'
3444                 fi
3445                 CC_SHARED_OPTS=
3446                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
3447                 ;;
3448         (irix*)
3449                 if test "$cf_cv_enable_rpath" = yes ; then
3450                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3451                 fi
3452                 # tested with IRIX 5.2 and 'cc'.
3453                 if test "$GCC" != yes; then
3454                         CC_SHARED_OPTS='-KPIC'
3455                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
3456                 else
3457                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
3458                 fi
3459                 cf_cv_rm_so_locs=yes
3460                 ;;
3461         (linux*|gnu*|k*bsd*-gnu)
3462                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3463                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3464                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3465                 fi
3466                 if test "$cf_cv_enable_rpath" = yes ; then
3467                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3468                 fi
3469                 CF_SHARED_SONAME
3470                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3471                 ;;
3472         (mingw*)
3473                 cf_cv_shlib_version=mingw
3474                 cf_cv_shlib_version_infix=mingw
3475                 shlibdir=$bindir
3476                 MAKE_DLLS=
3477                 if test "$DFT_LWR_MODEL" = "shared" ; then
3478                         LOCAL_LDFLAGS="-Wl,--enable-auto-import"
3479                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3480                         EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
3481                 fi
3482                 CC_SHARED_OPTS=
3483                 MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
3484                 RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
3485                 cat >mk_shared_lib.sh <<-CF_EOF
3486                 #!$SHELL
3487                 SHARED_LIB=\[$]1
3488                 IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
3489                 shift
3490                 cat <<-EOF
3491                 Linking shared library
3492                 ** SHARED_LIB \[$]SHARED_LIB
3493                 ** IMPORT_LIB \[$]IMPORT_LIB
3494 EOF
3495                 exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
3496 CF_EOF
3497                 chmod +x mk_shared_lib.sh
3498                 ;;
3499         (openbsd[[2-9]].*|mirbsd*)
3500                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3501                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3502                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3503                 fi
3504                 if test "$cf_cv_enable_rpath" = yes ; then
3505                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3506                 fi
3507                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3508                 CF_SHARED_SONAME
3509                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3510                 ;;
3511         (nto-qnx*|openbsd*|freebsd[[12]].*)
3512                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3513                 MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
3514                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3515                 ;;
3516         (dragonfly*|freebsd*)
3517                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3518                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3519                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3520                         LOCAL_LDFLAGS2="${cf_ld_rpath_opt}\${RPATH_LIST} $LOCAL_LDFLAGS"
3521                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3522                 fi
3523                 CF_SHARED_SONAME
3524                 MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
3525                 ;;
3526         (netbsd*)
3527                 CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
3528                 if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
3529                         LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
3530                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3531                         EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
3532                         if test "$cf_cv_shlib_version" = auto; then
3533                         if test -f /usr/libexec/ld.elf_so; then
3534                                 cf_cv_shlib_version=abi
3535                         else
3536                                 cf_cv_shlib_version=rel
3537                         fi
3538                         fi
3539                         CF_SHARED_SONAME
3540                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
3541                 else
3542                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
3543                 fi
3544                 ;;
3545         (osf*|mls+*)
3546                 # tested with OSF/1 V3.2 and 'cc'
3547                 # tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
3548                 # link with shared libs).
3549                 MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
3550                 case $host_os in
3551                 (osf4*)
3552                         MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
3553                         ;;
3554                 esac
3555                 MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
3556                 if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
3557                         LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
3558                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3559                 fi
3560                 cf_cv_rm_so_locs=yes
3561                 ;;
3562         (sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
3563                 # tested with osr5.0.5
3564                 if test "$GCC" != yes; then
3565                         CC_SHARED_OPTS='-belf -KPIC'
3566                 fi
3567                 MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
3568                 if test "$cf_cv_enable_rpath" = yes ; then
3569                         # only way is to set LD_RUN_PATH but no switch for it
3570                         RUN_PATH=$libdir
3571                 fi
3572                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3573                 LINK_PROGS='LD_RUN_PATH=${libdir}'
3574                 LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
3575                 ;;
3576         (sunos4*)
3577                 # tested with SunOS 4.1.1 and gcc 2.7.0
3578                 if test "$GCC" != yes; then
3579                         CC_SHARED_OPTS='-KPIC'
3580                 fi
3581                 MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
3582                 test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
3583                 ;;
3584         (solaris2*)
3585                 # tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
3586                 # tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
3587                 if test "$DFT_LWR_MODEL" = "shared" ; then
3588                         LOCAL_LDFLAGS="-R \$(LOCAL_LIBDIR):\${libdir}"
3589                         LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
3590                 fi
3591                 if test "$cf_cv_enable_rpath" = yes ; then
3592                         EXTRA_LDFLAGS="-R \${libdir} $EXTRA_LDFLAGS"
3593                 fi
3594                 CF_SHARED_SONAME
3595                 if test "$GCC" != yes; then
3596                         cf_save_CFLAGS="$CFLAGS"
3597                         for cf_shared_opts in -xcode=pic32 -xcode=pic13 -KPIC -Kpic -O
3598                         do
3599                                 CFLAGS="$cf_shared_opts $cf_save_CFLAGS"
3600                                 AC_TRY_COMPILE([#include <stdio.h>],[printf("Hello\n");],[break])
3601                         done
3602                         CFLAGS="$cf_save_CFLAGS"
3603                         CC_SHARED_OPTS=$cf_shared_opts
3604                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3605                 else
3606                         MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
3607                 fi
3608                 ;;
3609         (sysv5uw7*|unix_sv*)
3610                 # tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
3611                 if test "$GCC" != yes; then
3612                         CC_SHARED_OPTS='-KPIC'
3613                 fi
3614                 MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
3615                 ;;
3616         (*)
3617                 CC_SHARED_OPTS='unknown'
3618                 MK_SHARED_LIB='echo unknown'
3619                 ;;
3620         esac
3621
3622         # This works if the last tokens in $MK_SHARED_LIB are the -o target.
3623         case "$cf_cv_shlib_version" in
3624         (rel|abi)
3625                 case "$MK_SHARED_LIB" in
3626                 (*'-o $[@]')
3627                         test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
3628                         ;;
3629                 (*)
3630                         AC_MSG_WARN(ignored --with-shlib-version)
3631                         ;;
3632                 esac
3633                 ;;
3634         esac
3635
3636         if test -n "$cf_try_cflags"
3637         then
3638 cat > conftest.$ac_ext <<EOF
3639 #line __oline__ "${as_me:-configure}"
3640 #include <stdio.h>
3641 int main(int argc, char *argv[[]])
3642 {
3643         printf("hello\n");
3644         return (argv[[argc-1]] == 0) ;
3645 }
3646 EOF
3647                 cf_save_CFLAGS="$CFLAGS"
3648                 for cf_opt in $cf_try_cflags
3649                 do
3650                         CFLAGS="$cf_save_CFLAGS -$cf_opt"
3651                         AC_MSG_CHECKING(if CFLAGS option -$cf_opt works)
3652                         if AC_TRY_EVAL(ac_compile); then
3653                                 AC_MSG_RESULT(yes)
3654                                 cf_save_CFLAGS="$CFLAGS"
3655                         else
3656                                 AC_MSG_RESULT(no)
3657                         fi
3658                 done
3659                 CFLAGS="$cf_save_CFLAGS"
3660         fi
3661
3662
3663         # RPATH_LIST is a colon-separated list of directories
3664         test -n "$cf_ld_rpath_opt" && MK_SHARED_LIB="$MK_SHARED_LIB $cf_ld_rpath_opt\${RPATH_LIST}"
3665         test -z "$RPATH_LIST" && RPATH_LIST="\${libdir}"
3666
3667         test $cf_cv_rm_so_locs = yes && RM_SHARED_OPTS="$RM_SHARED_OPTS so_locations"
3668
3669         CF_VERBOSE(CC_SHARED_OPTS: $CC_SHARED_OPTS)
3670         CF_VERBOSE(MK_SHARED_LIB:  $MK_SHARED_LIB)
3671
3672         AC_SUBST(CC_SHARED_OPTS)
3673         AC_SUBST(LD_RPATH_OPT)
3674         AC_SUBST(LD_SHARED_OPTS)
3675         AC_SUBST(MK_SHARED_LIB)
3676         AC_SUBST(RM_SHARED_OPTS)
3677
3678         AC_SUBST(LINK_PROGS)
3679         AC_SUBST(LINK_TESTS)
3680
3681         AC_SUBST(EXTRA_LDFLAGS)
3682         AC_SUBST(LOCAL_LDFLAGS)
3683         AC_SUBST(LOCAL_LDFLAGS2)
3684
3685         AC_SUBST(INSTALL_LIB)
3686         AC_SUBST(RPATH_LIST)
3687 ])dnl
3688 dnl ---------------------------------------------------------------------------
3689 dnl CF_SHARED_SONAME version: 3 updated: 2008/09/08 18:34:43
3690 dnl ----------------
3691 dnl utility macro for CF_SHARED_OPTS, constructs "$cf_cv_shared_soname" for
3692 dnl substitution into MK_SHARED_LIB string for the "-soname" (or similar)
3693 dnl option.
3694 dnl
3695 dnl $1 is the default that should be used for "$cf_cv_shlib_version".
3696 dnl If missing, use "rel".
3697 define([CF_SHARED_SONAME],
3698 [
3699         test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=ifelse($1,,rel,$1)
3700         if test "$cf_cv_shlib_version" = rel; then
3701                 cf_cv_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
3702         else
3703                 cf_cv_shared_soname='`basename $[@]`'
3704         fi
3705 ])
3706 dnl ---------------------------------------------------------------------------
3707 dnl CF_STRIP_G_OPT version: 3 updated: 2002/12/21 19:25:52
3708 dnl --------------
3709 dnl     Remove "-g" option from the compiler options
3710 AC_DEFUN([CF_STRIP_G_OPT],
3711 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
3712 dnl ---------------------------------------------------------------------------
3713 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3714 dnl --------------
3715 dnl Construct a search-list for a nonstandard header/lib-file
3716 dnl     $1 = the variable to return as result
3717 dnl     $2 = the package name
3718 dnl     $3 = the subdirectory, e.g., bin, include or lib
3719 AC_DEFUN([CF_SUBDIR_PATH],
3720 [
3721 $1=
3722
3723 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3724
3725 for cf_subdir_prefix in \
3726         /usr \
3727         /usr/local \
3728         /usr/pkg \
3729         /opt \
3730         /opt/local \
3731         [$]HOME
3732 do
3733         CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3734 done
3735 ])dnl
3736 dnl ---------------------------------------------------------------------------
3737 dnl CF_TERM_HEADER version: 4 updated: 2015/04/15 19:08:48
3738 dnl --------------
3739 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
3740 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
3741 dnl but some packagers change this, breaking various applications.
3742 AC_DEFUN([CF_TERM_HEADER],[
3743 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3744 case ${cf_cv_ncurses_header} in
3745 (*/ncurses.h|*/ncursesw.h)
3746         cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3747         ;;
3748 (*)
3749         cf_term_header=term.h
3750         ;;
3751 esac
3752
3753 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3754 do
3755 AC_TRY_COMPILE([#include <stdio.h>
3756 #include <${cf_cv_ncurses_header:-curses.h}>
3757 #include <$cf_test>
3758 ],[int x = auto_left_margin],[
3759         cf_cv_term_header="$cf_test"],[
3760         cf_cv_term_header=unknown
3761         ])
3762         test "$cf_cv_term_header" != unknown && break
3763 done
3764 ])
3765
3766 # Set definitions to allow ifdef'ing to accommodate subdirectories
3767
3768 case $cf_cv_term_header in
3769 (*term.h)
3770         AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3771         ;;
3772 esac
3773
3774 case $cf_cv_term_header in
3775 (ncurses/term.h)
3776         AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3777         ;;
3778 (ncursesw/term.h)
3779         AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3780         ;;
3781 esac
3782 ])dnl
3783 dnl ---------------------------------------------------------------------------
3784 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3785 dnl ---------------
3786 dnl Define a top_builddir symbol, for applications that need an absolute path.
3787 AC_DEFUN([CF_TOP_BUILDDIR],
3788 [
3789 top_builddir=ifelse($1,,`pwd`,$1)
3790 AC_SUBST(top_builddir)
3791 ])dnl
3792 dnl ---------------------------------------------------------------------------
3793 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
3794 dnl -------------------
3795 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3796 dnl can define it successfully.
3797 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3798 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3799         AC_TRY_COMPILE([
3800 #include <stdlib.h>
3801 #include <string.h>
3802 #include <sys/types.h>
3803 ],[
3804 #ifndef _XOPEN_SOURCE
3805 make an error
3806 #endif],
3807         [cf_cv_xopen_source=no],
3808         [cf_save="$CPPFLAGS"
3809          CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3810          AC_TRY_COMPILE([
3811 #include <stdlib.h>
3812 #include <string.h>
3813 #include <sys/types.h>
3814 ],[
3815 #ifdef _XOPEN_SOURCE
3816 make an error
3817 #endif],
3818         [cf_cv_xopen_source=no],
3819         [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3820         CPPFLAGS="$cf_save"
3821         ])
3822 ])
3823
3824 if test "$cf_cv_xopen_source" != no ; then
3825         CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3826         CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3827         cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3828         CF_ADD_CFLAGS($cf_temp_xopen_source)
3829 fi
3830 ])
3831 dnl ---------------------------------------------------------------------------
3832 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3833 dnl --------
3834 dnl Make an uppercase version of a variable
3835 dnl $1=uppercase($2)
3836 AC_DEFUN([CF_UPPER],
3837 [
3838 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3839 ])dnl
3840 dnl ---------------------------------------------------------------------------
3841 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
3842 dnl -----------
3843 dnl Check for multibyte support, and if not found, utf8 compatibility library
3844 AC_DEFUN([CF_UTF8_LIB],
3845 [
3846 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3847         cf_save_LIBS="$LIBS"
3848         AC_TRY_LINK([
3849 #include <stdlib.h>],[putwc(0,0);],
3850         [cf_cv_utf8_lib=yes],
3851         [CF_FIND_LINKAGE([
3852 #include <libutf8.h>],[putwc(0,0);],utf8,
3853                 [cf_cv_utf8_lib=add-on],
3854                 [cf_cv_utf8_lib=no])
3855 ])])
3856
3857 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3858 # ncurses/ncursesw:
3859 if test "$cf_cv_utf8_lib" = "add-on" ; then
3860         AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3861         CF_ADD_INCDIR($cf_cv_header_path_utf8)
3862         CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3863         CF_ADD_LIBS($cf_cv_library_file_utf8)
3864 fi
3865 ])dnl
3866 dnl ---------------------------------------------------------------------------
3867 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3868 dnl ----------
3869 dnl Use AC_VERBOSE w/o the warnings
3870 AC_DEFUN([CF_VERBOSE],
3871 [test -n "$verbose" && echo "   $1" 1>&AC_FD_MSG
3872 CF_MSG_LOG([$1])
3873 ])dnl
3874 dnl ---------------------------------------------------------------------------
3875 dnl CF_WEAK_SYMBOLS version: 1 updated: 2008/08/16 19:18:06
3876 dnl ---------------
3877 dnl Check for compiler-support for weak symbols.
3878 dnl This works with "recent" gcc.
3879 AC_DEFUN([CF_WEAK_SYMBOLS],[
3880 AC_CACHE_CHECK(if $CC supports weak symbols,cf_cv_weak_symbols,[
3881
3882 AC_TRY_COMPILE([
3883 #include <stdio.h>],
3884 [
3885 #if defined(__GNUC__)
3886 #  if defined __USE_ISOC99
3887 #    define _cat_pragma(exp)    _Pragma(#exp)
3888 #    define _weak_pragma(exp)   _cat_pragma(weak name)
3889 #  else
3890 #    define _weak_pragma(exp)
3891 #  endif
3892 #  define _declare(name)        __extension__ extern __typeof__(name) name
3893 #  define weak_symbol(name)     _weak_pragma(name) _declare(name) __attribute__((weak))
3894 #endif
3895
3896 weak_symbol(fopen);
3897 ],[cf_cv_weak_symbols=yes],[cf_cv_weak_symbols=no])
3898 ])
3899 ])dnl
3900 dnl ---------------------------------------------------------------------------
3901 dnl CF_WITH_ADA_COMPILER version: 2 updated: 2010/06/26 17:35:58
3902 dnl --------------------
3903 dnl Command-line option to specify the Ada95 compiler.
3904 AC_DEFUN([CF_WITH_ADA_COMPILER],[
3905 AC_MSG_CHECKING(for ada-compiler)
3906 AC_ARG_WITH(ada-compiler,
3907         [  --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)],
3908         [cf_ada_compiler=$withval],
3909         [cf_ada_compiler=gnatmake])
3910 AC_SUBST(cf_ada_compiler)
3911 AC_MSG_RESULT($cf_ada_compiler)
3912 ])dnl
3913 dnl ---------------------------------------------------------------------------
3914 dnl CF_WITH_ADA_INCLUDE version: 2 updated: 2010/06/26 17:35:58
3915 dnl -------------------
3916 dnl Command-line option to specify where Ada includes will install.
3917 AC_DEFUN([CF_WITH_ADA_INCLUDE],[
3918 AC_MSG_CHECKING(for ada-include)
3919 CF_WITH_PATH(ada-include,
3920    [  --with-ada-include=DIR  Ada includes are in DIR],
3921    ADA_INCLUDE,
3922    PREFIX/share/ada/adainclude,
3923    [$]prefix/share/ada/adainclude)
3924 AC_SUBST(ADA_INCLUDE)
3925 AC_MSG_RESULT($ADA_INCLUDE)
3926 ])dnl
3927 dnl ---------------------------------------------------------------------------
3928 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
3929 dnl -------------------
3930 dnl Command-line option to specify where Ada objects will install.
3931 AC_DEFUN([CF_WITH_ADA_OBJECTS],[
3932 AC_MSG_CHECKING(for ada-objects)
3933 CF_WITH_PATH(ada-objects,
3934    [  --with-ada-objects=DIR  Ada objects are in DIR],
3935    ADA_OBJECTS,
3936    PREFIX/lib/ada/adalib,
3937    [$]prefix/lib/ada/adalib)
3938 AC_SUBST(ADA_OBJECTS)
3939 AC_MSG_RESULT($ADA_OBJECTS)
3940 ])dnl
3941 dnl ---------------------------------------------------------------------------
3942 dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
3943 dnl ---------------------
3944 dnl Command-line option to specify if an Ada95 shared-library should be built,
3945 dnl and optionally what its soname should be.
3946 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
3947 AC_REQUIRE([CF_GNAT_PROJECTS])
3948 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
3949 AC_ARG_WITH(ada-sharedlib,
3950         [  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
3951         [with_ada_sharedlib=$withval],
3952         [with_ada_sharedlib=no])
3953 AC_MSG_RESULT($with_ada_sharedlib)
3954
3955 if test "x$with_ada_sharedlib" != xno
3956 then
3957         if test "x$cf_gnat_projects" != xyes
3958         then
3959                 AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
3960                 with_ada_sharedlib=no
3961         fi
3962 fi
3963
3964 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
3965 MAKE_ADA_SHAREDLIB="#"
3966
3967 if test "x$with_ada_sharedlib" != xno
3968 then
3969         MAKE_ADA_SHAREDLIB=
3970         if test "x$with_ada_sharedlib" != xyes
3971         then
3972                 ADA_SHAREDLIB="$with_ada_sharedlib"
3973         fi
3974 fi
3975
3976 AC_SUBST(ADA_SHAREDLIB)
3977 AC_SUBST(MAKE_ADA_SHAREDLIB)
3978 ])dnl
3979 dnl ---------------------------------------------------------------------------
3980 dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
3981 dnl ------------------
3982 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
3983 dnl libraries.
3984 AC_DEFUN([CF_WITH_CURSES_DIR],[
3985
3986 AC_MSG_CHECKING(for specific curses-directory)
3987 AC_ARG_WITH(curses-dir,
3988         [  --with-curses-dir=DIR   directory in which (n)curses is installed],
3989         [cf_cv_curses_dir=$withval],
3990         [cf_cv_curses_dir=no])
3991 AC_MSG_RESULT($cf_cv_curses_dir)
3992
3993 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
3994 then
3995         CF_PATH_SYNTAX(withval)
3996         if test -d "$cf_cv_curses_dir"
3997         then
3998                 CF_ADD_INCDIR($cf_cv_curses_dir/include)
3999                 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4000         fi
4001 fi
4002 ])dnl
4003 dnl ---------------------------------------------------------------------------
4004 dnl CF_WITH_LIB_PREFIX version: 1 updated: 2012/01/21 19:28:10
4005 dnl ------------------
4006 dnl Allow the library-prefix to be overridden.  OS/2 EMX originally had no
4007 dnl "lib" prefix, e.g., because it used the dll naming convention.
4008 dnl
4009 dnl $1 = variable to set
4010 AC_DEFUN([CF_WITH_LIB_PREFIX],
4011 [
4012 AC_MSG_CHECKING(if you want to have a library-prefix)
4013 AC_ARG_WITH(lib-prefix,
4014         [  --with-lib-prefix       override library-prefix],
4015         [with_lib_prefix=$withval],
4016         [with_lib_prefix=auto])
4017 AC_MSG_RESULT($with_lib_prefix)
4018
4019 if test $with_lib_prefix = auto
4020 then
4021         CF_LIB_PREFIX($1)
4022 elif test $with_lib_prefix = no
4023 then
4024         LIB_PREFIX=
4025 else
4026         LIB_PREFIX=$with_lib_prefix
4027 fi
4028 ])dnl
4029 dnl ---------------------------------------------------------------------------
4030 dnl CF_WITH_PATH version: 11 updated: 2012/09/29 15:04:19
4031 dnl ------------
4032 dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
4033 dnl defaulting to yes/no.
4034 dnl
4035 dnl $1 = option name
4036 dnl $2 = help-text
4037 dnl $3 = environment variable to set
4038 dnl $4 = default value, shown in the help-message, must be a constant
4039 dnl $5 = default value, if it's an expression & cannot be in the help-message
4040 dnl
4041 AC_DEFUN([CF_WITH_PATH],
4042 [AC_ARG_WITH($1,[$2 ](default: ifelse([$4],,empty,[$4])),,
4043 ifelse([$4],,[withval="${$3}"],[withval="${$3:-ifelse([$5],,[$4],[$5])}"]))dnl
4044 if ifelse([$5],,true,[test -n "$5"]) ; then
4045 CF_PATH_SYNTAX(withval)
4046 fi
4047 eval $3="$withval"
4048 AC_SUBST($3)dnl
4049 ])dnl
4050 dnl ---------------------------------------------------------------------------
4051 dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
4052 dnl -------------------------
4053 dnl Allow the choice of the pkg-config library directory to be overridden.
4054 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
4055
4056 case $PKG_CONFIG in
4057 (no|none|yes)
4058         AC_MSG_CHECKING(for pkg-config library directory)
4059         ;;
4060 (*)
4061         AC_MSG_CHECKING(for $PKG_CONFIG library directory)
4062         ;;
4063 esac
4064
4065 PKG_CONFIG_LIBDIR=no
4066 AC_ARG_WITH(pkg-config-libdir,
4067         [  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
4068         [PKG_CONFIG_LIBDIR=$withval],
4069         [test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
4070
4071 case x$PKG_CONFIG_LIBDIR in
4072 (x/*)
4073         ;;
4074 (xyes)
4075         # Look for the library directory using the same prefix as the executable
4076         if test "x$PKG_CONFIG" = xnone
4077         then
4078                 cf_path=$prefix
4079         else
4080                 cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
4081         fi
4082
4083         # If you don't like using the default architecture, you have to specify the
4084         # intended library directory and corresponding compiler/linker options.
4085         #
4086         # This case allows for Debian's 2014-flavor of multiarch, along with the
4087         # most common variations before that point.  Some other variants spell the
4088         # directory differently, e.g., "pkg-config", and put it in unusual places.
4089         # pkg-config has always been poorly standardized, which is ironic...
4090         case x`(arch) 2>/dev/null` in
4091         (*64)
4092                 cf_search_path="\
4093                         $cf_path/lib/*64-linux-gnu \
4094                         $cf_path/share \
4095                         $cf_path/lib64 \
4096                         $cf_path/lib32 \
4097                         $cf_path/lib"
4098                 ;;
4099         (*)
4100                 cf_search_path="\
4101                         $cf_path/lib/*-linux-gnu \
4102                         $cf_path/share \
4103                         $cf_path/lib32 \
4104                         $cf_path/lib \
4105                         $cf_path/libdata"
4106                 ;;
4107         esac
4108
4109         CF_VERBOSE(list...)
4110         for cf_config in $cf_search_path
4111         do
4112                 CF_VERBOSE(checking $cf_config/pkgconfig)
4113                 if test -d $cf_config/pkgconfig
4114                 then
4115                         PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
4116                         AC_MSG_CHECKING(done)
4117                         break
4118                 fi
4119         done
4120         ;;
4121 (*)
4122         ;;
4123 esac
4124
4125 if test "x$PKG_CONFIG_LIBDIR" != xno ; then
4126         AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
4127 fi
4128
4129 AC_SUBST(PKG_CONFIG_LIBDIR)
4130 ])dnl
4131 dnl ---------------------------------------------------------------------------
4132 dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
4133 dnl ---------------
4134 dnl Check for POSIX thread library.
4135 AC_DEFUN([CF_WITH_PTHREAD],
4136 [
4137 AC_MSG_CHECKING(if you want to link with the pthread library)
4138 AC_ARG_WITH(pthread,
4139         [  --with-pthread          use POSIX thread library],
4140         [with_pthread=$withval],
4141         [with_pthread=no])
4142 AC_MSG_RESULT($with_pthread)
4143
4144 if test "$with_pthread" != no ; then
4145         AC_CHECK_HEADER(pthread.h,[
4146         AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
4147
4148         for cf_lib_pthread in pthread c_r
4149         do
4150             AC_MSG_CHECKING(if we can link with the $cf_lib_pthread library)
4151             cf_save_LIBS="$LIBS"
4152             CF_ADD_LIB($cf_lib_pthread)
4153             AC_TRY_LINK([
4154 #include <pthread.h>
4155 ],[
4156                 int rc = pthread_create(0,0,0,0);
4157                 int r2 = pthread_mutexattr_settype(0, 0);
4158 ],[with_pthread=yes],[with_pthread=no])
4159             LIBS="$cf_save_LIBS"
4160             AC_MSG_RESULT($with_pthread)
4161             test "$with_pthread" = yes && break
4162         done
4163
4164         if test "$with_pthread" = yes ; then
4165             CF_ADD_LIB($cf_lib_pthread)
4166             AC_DEFINE(HAVE_LIBPTHREADS,1,[Define to 1 if we have pthreads library])
4167         else
4168             AC_MSG_ERROR(Cannot link with pthread library)
4169         fi
4170         ])
4171 fi
4172 ])
4173 dnl ---------------------------------------------------------------------------
4174 dnl CF_WITH_SYSTYPE version: 1 updated: 2013/01/26 16:26:12
4175 dnl ---------------
4176 dnl For testing, override the derived host system-type which is used to decide
4177 dnl things such as the linker commands used to build shared libraries.  This is
4178 dnl normally chosen automatically based on the type of system which you are
4179 dnl building on.  We use it for testing the configure script.
4180 dnl
4181 dnl This is different from the --host option: it is used only for testing parts
4182 dnl of the configure script which would not be reachable with --host since that
4183 dnl relies on the build environment being real, rather than mocked up.
4184 AC_DEFUN([CF_WITH_SYSTYPE],[
4185 CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
4186 AC_ARG_WITH(system-type,
4187         [  --with-system-type=XXX  test: override derived host system-type],
4188 [AC_MSG_WARN(overriding system type to $withval)
4189         cf_cv_system_name=$withval
4190         host_os=$withval
4191 ])
4192 ])dnl
4193 dnl ---------------------------------------------------------------------------
4194 dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
4195 dnl ---------------
4196 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4197 dnl or adapt to the vendor's definitions to get equivalent functionality,
4198 dnl without losing the common non-POSIX features.
4199 dnl
4200 dnl Parameters:
4201 dnl     $1 is the nominal value for _XOPEN_SOURCE
4202 dnl     $2 is the nominal value for _POSIX_C_SOURCE
4203 AC_DEFUN([CF_XOPEN_SOURCE],[
4204 AC_REQUIRE([AC_CANONICAL_HOST])
4205 AC_REQUIRE([CF_POSIX_VISIBLE])
4206
4207 if test "$cf_cv_posix_visible" = no; then
4208
4209 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4210 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4211 cf_xopen_source=
4212
4213 case $host_os in
4214 (aix[[4-7]]*)
4215         cf_xopen_source="-D_ALL_SOURCE"
4216         ;;
4217 (msys)
4218         cf_XOPEN_SOURCE=600
4219         ;;
4220 (darwin[[0-8]].*)
4221         cf_xopen_source="-D_APPLE_C_SOURCE"
4222         ;;
4223 (darwin*)
4224         cf_xopen_source="-D_DARWIN_C_SOURCE"
4225         cf_XOPEN_SOURCE=
4226         ;;
4227 (freebsd*|dragonfly*|midnightbsd*)
4228         # 5.x headers associate
4229         #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4230         #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4231         cf_POSIX_C_SOURCE=200112L
4232         cf_XOPEN_SOURCE=600
4233         cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4234         ;;
4235 (hpux11*)
4236         cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4237         ;;
4238 (hpux*)
4239         cf_xopen_source="-D_HPUX_SOURCE"
4240         ;;
4241 (irix[[56]].*)
4242         cf_xopen_source="-D_SGI_SOURCE"
4243         cf_XOPEN_SOURCE=
4244         ;;
4245 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4246         CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4247         ;;
4248 (minix*)
4249         cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4250         ;;
4251 (mirbsd*)
4252         # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4253         cf_XOPEN_SOURCE=
4254         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4255         ;;
4256 (netbsd*)
4257         cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4258         ;;
4259 (openbsd[[4-9]]*)
4260         # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4261         cf_xopen_source="-D_BSD_SOURCE"
4262         cf_XOPEN_SOURCE=600
4263         ;;
4264 (openbsd*)
4265         # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4266         ;;
4267 (osf[[45]]*)
4268         cf_xopen_source="-D_OSF_SOURCE"
4269         ;;
4270 (nto-qnx*)
4271         cf_xopen_source="-D_QNX_SOURCE"
4272         ;;
4273 (sco*)
4274         # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4275         ;;
4276 (solaris2.*)
4277         cf_xopen_source="-D__EXTENSIONS__"
4278         cf_cv_xopen_source=broken
4279         ;;
4280 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4281         cf_XOPEN_SOURCE=
4282         cf_POSIX_C_SOURCE=
4283         ;;
4284 (*)
4285         CF_TRY_XOPEN_SOURCE
4286         CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4287         ;;
4288 esac
4289
4290 if test -n "$cf_xopen_source" ; then
4291         CF_ADD_CFLAGS($cf_xopen_source,true)
4292 fi
4293
4294 dnl In anything but the default case, we may have system-specific setting
4295 dnl which is still not guaranteed to provide all of the entrypoints that
4296 dnl _XOPEN_SOURCE would yield.
4297 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4298         AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4299         AC_TRY_COMPILE([#include <stdlib.h>],[
4300 #ifndef _XOPEN_SOURCE
4301 make an error
4302 #endif],
4303         [cf_XOPEN_SOURCE_set=yes],
4304         [cf_XOPEN_SOURCE_set=no])
4305         AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4306         if test $cf_XOPEN_SOURCE_set = yes
4307         then
4308                 AC_TRY_COMPILE([#include <stdlib.h>],[
4309 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4310 make an error
4311 #endif],
4312                 [cf_XOPEN_SOURCE_set_ok=yes],
4313                 [cf_XOPEN_SOURCE_set_ok=no])
4314                 if test $cf_XOPEN_SOURCE_set_ok = no
4315                 then
4316                         AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4317                 fi
4318         else
4319                 CF_TRY_XOPEN_SOURCE
4320         fi
4321 fi
4322 fi # cf_cv_posix_visible
4323 ])