acinclude.m4
author Patrice Mandin <patmandin@gmail.com>
Wed, 24 Sep 2003 21:45:27 +0000
changeset 723 1e8865a3e127
parent 1 cf2af46e9e2a
child 729 dac996d69abb
permissions -rw-r--r--
Files now copied to build directory instead of source directory while configuring
     1 # Local macros for the SDL configure.in script
     2 
     3 dnl Function to link an architecture specific file
     4 dnl LINK_ARCH_SRC(source_dir, arch, source_file)
     5 AC_DEFUN(COPY_ARCH_SRC,
     6 [
     7   old="$srcdir/$1/$2/$3"
     8   new="$1/$3"
     9   if test ! -d $1; then
    10     echo "Creating directory $1"
    11     mkdir -p $1
    12   fi
    13   echo "Copying $old -> $new"
    14   cat >$new <<__EOF__
    15 /* WARNING:  This file was automatically generated!
    16  * Original: $old
    17  */
    18 __EOF__
    19   cat >>$new <$old
    20 ])
    21 
    22 #
    23 # --- esd.m4 ---
    24 #
    25 # Configure paths for ESD
    26 # Manish Singh    98-9-30
    27 # stolen back from Frank Belew
    28 # stolen from Manish Singh
    29 # Shamelessly stolen from Owen Taylor
    30 
    31 dnl AM_PATH_ESD([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
    32 dnl Test for ESD, and define ESD_CFLAGS and ESD_LIBS
    33 dnl
    34 AC_DEFUN(AM_PATH_ESD,
    35 [dnl 
    36 dnl Get the cflags and libraries from the esd-config script
    37 dnl
    38 AC_ARG_WITH(esd-prefix,[  --with-esd-prefix=PFX   Prefix where ESD is installed (optional)],
    39             esd_prefix="$withval", esd_prefix="")
    40 AC_ARG_WITH(esd-exec-prefix,[  --with-esd-exec-prefix=PFX Exec prefix where ESD is installed (optional)],
    41             esd_exec_prefix="$withval", esd_exec_prefix="")
    42 AC_ARG_ENABLE(esdtest, [  --disable-esdtest       Do not try to compile and run a test ESD program],
    43 		    , enable_esdtest=yes)
    44 
    45   if test x$esd_exec_prefix != x ; then
    46      esd_args="$esd_args --exec-prefix=$esd_exec_prefix"
    47      if test x${ESD_CONFIG+set} != xset ; then
    48         ESD_CONFIG=$esd_exec_prefix/bin/esd-config
    49      fi
    50   fi
    51   if test x$esd_prefix != x ; then
    52      esd_args="$esd_args --prefix=$esd_prefix"
    53      if test x${ESD_CONFIG+set} != xset ; then
    54         ESD_CONFIG=$esd_prefix/bin/esd-config
    55      fi
    56   fi
    57 
    58   AC_PATH_PROG(ESD_CONFIG, esd-config, no)
    59   min_esd_version=ifelse([$1], ,0.2.7,$1)
    60   AC_MSG_CHECKING(for ESD - version >= $min_esd_version)
    61   no_esd=""
    62   if test "$ESD_CONFIG" = "no" ; then
    63     no_esd=yes
    64   else
    65     ESD_CFLAGS=`$ESD_CONFIG $esdconf_args --cflags`
    66     ESD_LIBS=`$ESD_CONFIG $esdconf_args --libs`
    67 
    68     esd_major_version=`$ESD_CONFIG $esd_args --version | \
    69            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    70     esd_minor_version=`$ESD_CONFIG $esd_args --version | \
    71            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    72     esd_micro_version=`$ESD_CONFIG $esd_config_args --version | \
    73            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
    74     if test "x$enable_esdtest" = "xyes" ; then
    75       ac_save_CFLAGS="$CFLAGS"
    76       ac_save_LIBS="$LIBS"
    77       CFLAGS="$CFLAGS $ESD_CFLAGS"
    78       LIBS="$LIBS $ESD_LIBS"
    79 dnl
    80 dnl Now check if the installed ESD is sufficiently new. (Also sanity
    81 dnl checks the results of esd-config to some extent
    82 dnl
    83       rm -f conf.esdtest
    84       AC_TRY_RUN([
    85 #include <stdio.h>
    86 #include <stdlib.h>
    87 #include <string.h>
    88 #include <esd.h>
    89 
    90 char*
    91 my_strdup (char *str)
    92 {
    93   char *new_str;
    94   
    95   if (str)
    96     {
    97       new_str = malloc ((strlen (str) + 1) * sizeof(char));
    98       strcpy (new_str, str);
    99     }
   100   else
   101     new_str = NULL;
   102   
   103   return new_str;
   104 }
   105 
   106 int main ()
   107 {
   108   int major, minor, micro;
   109   char *tmp_version;
   110 
   111   system ("touch conf.esdtest");
   112 
   113   /* HP/UX 9 (%@#!) writes to sscanf strings */
   114   tmp_version = my_strdup("$min_esd_version");
   115   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
   116      printf("%s, bad version string\n", "$min_esd_version");
   117      exit(1);
   118    }
   119 
   120    if (($esd_major_version > major) ||
   121       (($esd_major_version == major) && ($esd_minor_version > minor)) ||
   122       (($esd_major_version == major) && ($esd_minor_version == minor) && ($esd_micro_version >= micro)))
   123     {
   124       return 0;
   125     }
   126   else
   127     {
   128       printf("\n*** 'esd-config --version' returned %d.%d.%d, but the minimum version\n", $esd_major_version, $esd_minor_version, $esd_micro_version);
   129       printf("*** of ESD required is %d.%d.%d. If esd-config is correct, then it is\n", major, minor, micro);
   130       printf("*** best to upgrade to the required version.\n");
   131       printf("*** If esd-config was wrong, set the environment variable ESD_CONFIG\n");
   132       printf("*** to point to the correct copy of esd-config, and remove the file\n");
   133       printf("*** config.cache before re-running configure\n");
   134       return 1;
   135     }
   136 }
   137 
   138 ],, no_esd=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
   139        CFLAGS="$ac_save_CFLAGS"
   140        LIBS="$ac_save_LIBS"
   141      fi
   142   fi
   143   if test "x$no_esd" = x ; then
   144      AC_MSG_RESULT(yes)
   145      ifelse([$2], , :, [$2])     
   146   else
   147      AC_MSG_RESULT(no)
   148      if test "$ESD_CONFIG" = "no" ; then
   149        echo "*** The esd-config script installed by ESD could not be found"
   150        echo "*** If ESD was installed in PREFIX, make sure PREFIX/bin is in"
   151        echo "*** your path, or set the ESD_CONFIG environment variable to the"
   152        echo "*** full path to esd-config."
   153      else
   154        if test -f conf.esdtest ; then
   155         :
   156        else
   157           echo "*** Could not run ESD test program, checking why..."
   158           CFLAGS="$CFLAGS $ESD_CFLAGS"
   159           LIBS="$LIBS $ESD_LIBS"
   160           AC_TRY_LINK([
   161 #include <stdio.h>
   162 #include <esd.h>
   163 ],      [ return 0; ],
   164         [ echo "*** The test program compiled, but did not run. This usually means"
   165           echo "*** that the run-time linker is not finding ESD or finding the wrong"
   166           echo "*** version of ESD. If it is not finding ESD, you'll need to set your"
   167           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
   168           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
   169           echo "*** is required on your system"
   170 	  echo "***"
   171           echo "*** If you have an old version installed, it is best to remove it, although"
   172           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
   173         [ echo "*** The test program failed to compile or link. See the file config.log for the"
   174           echo "*** exact error that occured. This usually means ESD was incorrectly installed"
   175           echo "*** or that you have moved ESD since it was installed. In the latter case, you"
   176           echo "*** may want to edit the esd-config script: $ESD_CONFIG" ])
   177           CFLAGS="$ac_save_CFLAGS"
   178           LIBS="$ac_save_LIBS"
   179        fi
   180      fi
   181      ESD_CFLAGS=""
   182      ESD_LIBS=""
   183      ifelse([$3], , :, [$3])
   184   fi
   185   AC_SUBST(ESD_CFLAGS)
   186   AC_SUBST(ESD_LIBS)
   187   rm -f conf.esdtest
   188 ])
   189 
   190 ## libtool.m4 - Configure libtool for the target system. -*-Shell-script-*-
   191 ## Copyright (C) 1996-1999, 2000 Free Software Foundation, Inc.
   192 ## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   193 ##
   194 ## This program is free software; you can redistribute it and/or modify
   195 ## it under the terms of the GNU General Public License as published by
   196 ## the Free Software Foundation; either version 2 of the License, or
   197 ## (at your option) any later version.
   198 ##
   199 ## This program is distributed in the hope that it will be useful, but
   200 ## WITHOUT ANY WARRANTY; without even the implied warranty of
   201 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   202 ## General Public License for more details.
   203 ##
   204 ## You should have received a copy of the GNU General Public License
   205 ## along with this program; if not, write to the Free Software
   206 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   207 ##
   208 ## As a special exception to the GNU General Public License, if you
   209 ## distribute this file as part of a program that contains a
   210 ## configuration script generated by Autoconf, you may include it under
   211 ## the same distribution terms that you use for the rest of that program.
   212 
   213 # serial 40 AC_PROG_LIBTOOL
   214 AC_DEFUN(AC_PROG_LIBTOOL,
   215 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
   216 
   217 # Save cache, so that ltconfig can load it
   218 AC_CACHE_SAVE
   219 
   220 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
   221 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
   222 LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
   223 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
   224 DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
   225 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
   226 $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
   227 || AC_MSG_ERROR([libtool configure failed])
   228 
   229 # Reload cache, that may have been modified by ltconfig
   230 AC_CACHE_LOAD
   231 
   232 # This can be used to rebuild libtool when needed
   233 LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"
   234 
   235 # Always use our own libtool.
   236 LIBTOOL='$(SHELL) $(top_builddir)/libtool'
   237 AC_SUBST(LIBTOOL)dnl
   238 
   239 # Redirect the config.log output again, so that the ltconfig log is not
   240 # clobbered by the next message.
   241 exec 5>>./config.log
   242 ])
   243 
   244 AC_DEFUN(AC_LIBTOOL_SETUP,
   245 [AC_PREREQ(2.13)dnl
   246 AC_REQUIRE([AC_ENABLE_SHARED])dnl
   247 AC_REQUIRE([AC_ENABLE_STATIC])dnl
   248 AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
   249 AC_REQUIRE([AC_CANONICAL_HOST])dnl
   250 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
   251 AC_REQUIRE([AC_PROG_RANLIB])dnl
   252 AC_REQUIRE([AC_PROG_CC])dnl
   253 AC_REQUIRE([AC_PROG_LD])dnl
   254 AC_REQUIRE([AC_PROG_NM])dnl
   255 AC_REQUIRE([AC_PROG_LN_S])dnl
   256 dnl
   257 
   258 case "$target" in
   259 NONE) lt_target="$host" ;;
   260 *) lt_target="$target" ;;
   261 esac
   262 
   263 # Check for any special flags to pass to ltconfig.
   264 libtool_flags="--cache-file=$cache_file"
   265 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
   266 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
   267 test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
   268 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
   269 test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
   270 ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
   271 [libtool_flags="$libtool_flags --enable-dlopen"])
   272 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
   273 [libtool_flags="$libtool_flags --enable-win32-dll"])
   274 AC_ARG_ENABLE(libtool-lock,
   275   [  --disable-libtool-lock  avoid locking (might break parallel builds)])
   276 test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
   277 test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
   278 
   279 # Some flags need to be propagated to the compiler or linker for good
   280 # libtool support.
   281 case "$lt_target" in
   282 *-*-irix6*)
   283   # Find out which ABI we are using.
   284   echo '[#]line __oline__ "configure"' > conftest.$ac_ext
   285   if AC_TRY_EVAL(ac_compile); then
   286     case "`/usr/bin/file conftest.o`" in
   287     *32-bit*)
   288       LD="${LD-ld} -32"
   289       ;;
   290     *N32*)
   291       LD="${LD-ld} -n32"
   292       ;;
   293     *64-bit*)
   294       LD="${LD-ld} -64"
   295       ;;
   296     esac
   297   fi
   298   rm -rf conftest*
   299   ;;
   300 
   301 *-*-sco3.2v5*)
   302   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
   303   SAVE_CFLAGS="$CFLAGS"
   304   CFLAGS="$CFLAGS -belf"
   305   AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
   306     [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
   307   if test x"$lt_cv_cc_needs_belf" != x"yes"; then
   308     # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
   309     CFLAGS="$SAVE_CFLAGS"
   310   fi
   311   ;;
   312 
   313 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
   314 [*-*-cygwin* | *-*-mingw*)
   315   AC_CHECK_TOOL(DLLTOOL, dlltool, false)
   316   AC_CHECK_TOOL(AS, as, false)
   317   AC_CHECK_TOOL(OBJDUMP, objdump, false)
   318   ;;
   319 ])
   320 esac
   321 ])
   322 
   323 # AC_LIBTOOL_DLOPEN - enable checks for dlopen support
   324 AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
   325 
   326 # AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
   327 AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
   328 
   329 # AC_ENABLE_SHARED - implement the --enable-shared flag
   330 # Usage: AC_ENABLE_SHARED[(DEFAULT)]
   331 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
   332 #   `yes'.
   333 AC_DEFUN(AC_ENABLE_SHARED, [dnl
   334 define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
   335 AC_ARG_ENABLE(shared,
   336 changequote(<<, >>)dnl
   337 <<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
   338 changequote([, ])dnl
   339 [p=${PACKAGE-default}
   340 case "$enableval" in
   341 yes) enable_shared=yes ;;
   342 no) enable_shared=no ;;
   343 *)
   344   enable_shared=no
   345   # Look at the argument we got.  We use all the common list separators.
   346   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
   347   for pkg in $enableval; do
   348     if test "X$pkg" = "X$p"; then
   349       enable_shared=yes
   350     fi
   351   done
   352   IFS="$ac_save_ifs"
   353   ;;
   354 esac],
   355 enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
   356 ])
   357 
   358 # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
   359 AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
   360 AC_ENABLE_SHARED(no)])
   361 
   362 # AC_ENABLE_STATIC - implement the --enable-static flag
   363 # Usage: AC_ENABLE_STATIC[(DEFAULT)]
   364 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
   365 #   `yes'.
   366 AC_DEFUN(AC_ENABLE_STATIC, [dnl
   367 define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
   368 AC_ARG_ENABLE(static,
   369 changequote(<<, >>)dnl
   370 <<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
   371 changequote([, ])dnl
   372 [p=${PACKAGE-default}
   373 case "$enableval" in
   374 yes) enable_static=yes ;;
   375 no) enable_static=no ;;
   376 *)
   377   enable_static=no
   378   # Look at the argument we got.  We use all the common list separators.
   379   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
   380   for pkg in $enableval; do
   381     if test "X$pkg" = "X$p"; then
   382       enable_static=yes
   383     fi
   384   done
   385   IFS="$ac_save_ifs"
   386   ;;
   387 esac],
   388 enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
   389 ])
   390 
   391 # AC_DISABLE_STATIC - set the default static flag to --disable-static
   392 AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
   393 AC_ENABLE_STATIC(no)])
   394 
   395 
   396 # AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
   397 # Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
   398 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
   399 #   `yes'.
   400 AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
   401 define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
   402 AC_ARG_ENABLE(fast-install,
   403 changequote(<<, >>)dnl
   404 <<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
   405 changequote([, ])dnl
   406 [p=${PACKAGE-default}
   407 case "$enableval" in
   408 yes) enable_fast_install=yes ;;
   409 no) enable_fast_install=no ;;
   410 *)
   411   enable_fast_install=no
   412   # Look at the argument we got.  We use all the common list separators.
   413   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
   414   for pkg in $enableval; do
   415     if test "X$pkg" = "X$p"; then
   416       enable_fast_install=yes
   417     fi
   418   done
   419   IFS="$ac_save_ifs"
   420   ;;
   421 esac],
   422 enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
   423 ])
   424 
   425 # AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
   426 AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
   427 AC_ENABLE_FAST_INSTALL(no)])
   428 
   429 # AC_PROG_LD - find the path to the GNU or non-GNU linker
   430 AC_DEFUN(AC_PROG_LD,
   431 [AC_ARG_WITH(gnu-ld,
   432 [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
   433 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
   434 AC_REQUIRE([AC_PROG_CC])dnl
   435 AC_REQUIRE([AC_CANONICAL_HOST])dnl
   436 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
   437 ac_prog=ld
   438 if test "$ac_cv_prog_gcc" = yes; then
   439   # Check if gcc -print-prog-name=ld gives a path.
   440   AC_MSG_CHECKING([for ld used by GCC])
   441   DELCR='tr -d \015'
   442   ac_prog=`($CC -print-prog-name=ld | $DELCR) 2>&5`
   443   case "$ac_prog" in
   444     # Accept absolute paths.
   445 changequote(,)dnl
   446     [\\/]* | [A-Za-z]:[\\/]*)
   447       re_direlt='/[^/][^/]*/\.\./'
   448 changequote([,])dnl
   449       # Canonicalize the path of ld
   450       ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
   451       while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
   452 	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
   453       done
   454       test -z "$LD" && LD="$ac_prog"
   455       ;;
   456   "")
   457     # If it fails, then pretend we aren't using GCC.
   458     ac_prog=ld
   459     ;;
   460   *)
   461     # If it is relative, then search for the first ld in PATH.
   462     with_gnu_ld=unknown
   463     ;;
   464   esac
   465 elif test "$with_gnu_ld" = yes; then
   466   AC_MSG_CHECKING([for GNU ld])
   467 else
   468   AC_MSG_CHECKING([for non-GNU ld])
   469 fi
   470 AC_CACHE_VAL(ac_cv_path_LD,
   471 [if test -z "$LD"; then
   472   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
   473   for ac_dir in $PATH; do
   474     test -z "$ac_dir" && ac_dir=.
   475     if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
   476       ac_cv_path_LD="$ac_dir/$ac_prog"
   477       # Check to see if the program is GNU ld.  I'd rather use --version,
   478       # but apparently some GNU ld's only accept -v.
   479       # Break only if it was the GNU/non-GNU ld that we prefer.
   480       if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
   481 	test "$with_gnu_ld" != no && break
   482       else
   483 	test "$with_gnu_ld" != yes && break
   484       fi
   485     fi
   486   done
   487   IFS="$ac_save_ifs"
   488 else
   489   ac_cv_path_LD="$LD" # Let the user override the test with a path.
   490 fi])
   491 LD="$ac_cv_path_LD"
   492 if test -n "$LD"; then
   493   AC_MSG_RESULT($LD)
   494 else
   495   AC_MSG_RESULT(no)
   496 fi
   497 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
   498 AC_PROG_LD_GNU
   499 ])
   500 
   501 AC_DEFUN(AC_PROG_LD_GNU,
   502 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
   503 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
   504 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
   505   ac_cv_prog_gnu_ld=yes
   506 else
   507   ac_cv_prog_gnu_ld=no
   508 fi])
   509 ])
   510 
   511 # AC_PROG_NM - find the path to a BSD-compatible name lister
   512 AC_DEFUN(AC_PROG_NM,
   513 [AC_MSG_CHECKING([for BSD-compatible nm])
   514 AC_CACHE_VAL(ac_cv_path_NM,
   515 [if test -n "$NM"; then
   516   # Let the user override the test.
   517   ac_cv_path_NM="$NM"
   518 else
   519   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
   520   for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
   521     test -z "$ac_dir" && ac_dir=.
   522     if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
   523       # Check to see if the nm accepts a BSD-compat flag.
   524       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
   525       #   nm: unknown option "B" ignored
   526       if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
   527 	ac_cv_path_NM="$ac_dir/nm -B"
   528 	break
   529       elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
   530 	ac_cv_path_NM="$ac_dir/nm -p"
   531 	break
   532       else
   533 	ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
   534 	continue # so that we can try to find one that supports BSD flags
   535       fi
   536     fi
   537   done
   538   IFS="$ac_save_ifs"
   539   test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
   540 fi])
   541 NM="$ac_cv_path_NM"
   542 AC_MSG_RESULT([$NM])
   543 ])
   544 
   545 # AC_CHECK_LIBM - check for math library
   546 AC_DEFUN(AC_CHECK_LIBM,
   547 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
   548 LIBM=
   549 case "$lt_target" in
   550 *-*-beos* | *-*-cygwin*)
   551   # These system don't have libm
   552   ;;
   553 *-ncr-sysv4.3*)
   554   AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
   555   AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
   556   ;;
   557 *)
   558   AC_CHECK_LIB(m, main, LIBM="-lm")
   559   ;;
   560 esac
   561 ])
   562 
   563 # AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
   564 # the libltdl convenience library and INCLTDL to the include flags for
   565 # the libltdl header and adds --enable-ltdl-convenience to the
   566 # configure arguments.  Note that LIBLTDL and INCLTDL are not
   567 # AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If DIR is not
   568 # provided, it is assumed to be `libltdl'.  LIBLTDL will be prefixed
   569 # with '${top_builddir}/' and INCLTDL will be prefixed with
   570 # '${top_srcdir}/' (note the single quotes!).  If your package is not
   571 # flat and you're not using automake, define top_builddir and
   572 # top_srcdir appropriately in the Makefiles.
   573 AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
   574   case "$enable_ltdl_convenience" in
   575   no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
   576   "") enable_ltdl_convenience=yes
   577       ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
   578   esac
   579   LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
   580   INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
   581 ])
   582 
   583 # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
   584 # the libltdl installable library and INCLTDL to the include flags for
   585 # the libltdl header and adds --enable-ltdl-install to the configure
   586 # arguments.  Note that LIBLTDL and INCLTDL are not AC_SUBSTed, nor is
   587 # AC_CONFIG_SUBDIRS called.  If DIR is not provided and an installed
   588 # libltdl is not found, it is assumed to be `libltdl'.  LIBLTDL will
   589 # be prefixed with '${top_builddir}/' and INCLTDL will be prefixed
   590 # with '${top_srcdir}/' (note the single quotes!).  If your package is
   591 # not flat and you're not using automake, define top_builddir and
   592 # top_srcdir appropriately in the Makefiles.
   593 # In the future, this macro may have to be called after AC_PROG_LIBTOOL.
   594 AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
   595   AC_CHECK_LIB(ltdl, main,
   596   [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
   597   [if test x"$enable_ltdl_install" = xno; then
   598      AC_MSG_WARN([libltdl not installed, but installation disabled])
   599    else
   600      enable_ltdl_install=yes
   601    fi
   602   ])
   603   if test x"$enable_ltdl_install" = x"yes"; then
   604     ac_configure_args="$ac_configure_args --enable-ltdl-install"
   605     LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
   606     INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
   607   else
   608     ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
   609     LIBLTDL="-lltdl"
   610     INCLTDL=
   611   fi
   612 ])
   613 
   614 dnl old names
   615 AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
   616 AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
   617 AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
   618 AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
   619 AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
   620 AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
   621 AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
   622 
   623 dnl This is just to silence aclocal about the macro not being used
   624 ifelse([AC_DISABLE_FAST_INSTALL])dnl