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kc3-lang/libxml2/aclocal.m4

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  • Author : Daniel Veillard
    Date : 2001-02-08 10:31:33
    Hash : 6a2e4060
    Message : - README: a bit of cleanup - configure.in: preparing for 2.3.0 release Daniel

  • aclocal.m4
  • dnl aclocal.m4 generated automatically by aclocal 1.4
    
    dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
    dnl This file is free software; the Free Software Foundation
    dnl gives unlimited permission to copy and/or distribute it,
    dnl with or without modifications, as long as this notice is preserved.
    
    dnl This program is distributed in the hope that it will be useful,
    dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
    dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
    dnl PARTICULAR PURPOSE.
    
    dnl Like AC_TRY_EVAL but also errors out if the compiler generates
    dnl _any_ output. Some compilers might issue warnings which we want
    dnl to catch.
    AC_DEFUN(AC_TRY_EVAL2,
    [{ (eval echo configure:__oline__: \"[$]$1\") 1>&AC_FD_CC; dnl
    (eval [$]$1) 2>&AC_FD_CC; _out=`eval [$]$1 2>&1` && test "x$_out" = x; }])
    
    dnl Like AC_TRY_COMPILE but calls AC_TRY_EVAL2 instead of AC_TRY_EVAL
    AC_DEFUN(AC_TRY_COMPILE2,
    [cat > conftest.$ac_ext <<EOF
    [#]line __oline__ "configure"
    #include "confdefs.h"
    [$1]
    int main() {
    [$2]
    ; return 0; }
    EOF
    if AC_TRY_EVAL2(ac_compile); then
      ifelse([$3], , :, [rm -rf conftest*
      $3])
    else
      echo "configure: failed program was:" >&AC_FD_CC
      cat conftest.$ac_ext >&AC_FD_CC
    ifelse([$4], , , [  rm -rf conftest*
      $4
    ])dnl
    fi
    rm -f conftest*])
    
    # Like AC_CONFIG_HEADER, but automatically create stamp file.
    
    AC_DEFUN(AM_CONFIG_HEADER,
    [AC_PREREQ([2.12])
    AC_CONFIG_HEADER([$1])
    dnl When config.status generates a header, we must update the stamp-h file.
    dnl This file resides in the same directory as the config header
    dnl that is generated.  We must strip everything past the first ":",
    dnl and everything past the last "/".
    AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
    ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
    <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
    <<am_indx=1
    for am_file in <<$1>>; do
      case " <<$>>CONFIG_HEADERS " in
      *" <<$>>am_file "*<<)>>
        echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
        ;;
      esac
      am_indx=`expr "<<$>>am_indx" + 1`
    done<<>>dnl>>)
    changequote([,]))])
    
    # Do all the work for Automake.  This macro actually does too much --
    # some checks are only needed if your package does certain things.
    # But this isn't really a big deal.
    
    # serial 1
    
    dnl Usage:
    dnl AM_INIT_AUTOMAKE(package,version, [no-define])
    
    AC_DEFUN(AM_INIT_AUTOMAKE,
    [AC_REQUIRE([AC_PROG_INSTALL])
    PACKAGE=[$1]
    AC_SUBST(PACKAGE)
    VERSION=[$2]
    AC_SUBST(VERSION)
    dnl test to see if srcdir already configured
    if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
      AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
    fi
    ifelse([$3],,
    AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
    AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
    AC_REQUIRE([AM_SANITY_CHECK])
    AC_REQUIRE([AC_ARG_PROGRAM])
    dnl FIXME This is truly gross.
    missing_dir=`cd $ac_aux_dir && pwd`
    AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
    AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
    AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
    AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
    AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
    AC_REQUIRE([AC_PROG_MAKE_SET])])
    
    #
    # Check to make sure that the build environment is sane.
    #
    
    AC_DEFUN(AM_SANITY_CHECK,
    [AC_MSG_CHECKING([whether build environment is sane])
    # Just in case
    sleep 1
    echo timestamp > conftestfile
    # Do `set' in a subshell so we don't clobber the current shell's
    # arguments.  Must try -L first in case configure is actually a
    # symlink; some systems play weird games with the mod time of symlinks
    # (eg FreeBSD returns the mod time of the symlink's containing
    # directory).
    if (
       set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
       if test "[$]*" = "X"; then
          # -L didn't work.
          set X `ls -t $srcdir/configure conftestfile`
       fi
       if test "[$]*" != "X $srcdir/configure conftestfile" \
          && test "[$]*" != "X conftestfile $srcdir/configure"; then
    
          # If neither matched, then we have a broken ls.  This can happen
          # if, for instance, CONFIG_SHELL is bash and it inherits a
          # broken ls alias from the environment.  This has actually
          # happened.  Such a system could not be considered "sane".
          AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
    alias in your environment])
       fi
    
       test "[$]2" = conftestfile
       )
    then
       # Ok.
       :
    else
       AC_MSG_ERROR([newly created file is older than distributed files!
    Check your system clock])
    fi
    rm -f conftest*
    AC_MSG_RESULT(yes)])
    
    dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
    dnl The program must properly implement --version.
    AC_DEFUN(AM_MISSING_PROG,
    [AC_MSG_CHECKING(for working $2)
    # Run test in a subshell; some versions of sh will print an error if
    # an executable is not found, even if stderr is redirected.
    # Redirect stdin to placate older versions of autoconf.  Sigh.
    if ($2 --version) < /dev/null > /dev/null 2>&1; then
       $1=$2
       AC_MSG_RESULT(found)
    else
       $1="$3/missing $2"
       AC_MSG_RESULT(missing)
    fi
    AC_SUBST($1)])
    
    
    # serial 1
    
    AC_DEFUN(AM_C_PROTOTYPES,
    [AC_REQUIRE([AM_PROG_CC_STDC])
    AC_REQUIRE([AC_PROG_CPP])
    AC_MSG_CHECKING([for function prototypes])
    if test "$am_cv_prog_cc_stdc" != no; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(PROTOTYPES,1,[Define if compiler has function prototypes])
      U= ANSI2KNR=
    else
      AC_MSG_RESULT(no)
      U=_ ANSI2KNR=./ansi2knr
      # Ensure some checks needed by ansi2knr itself.
      AC_HEADER_STDC
      AC_CHECK_HEADERS(string.h)
    fi
    AC_SUBST(U)dnl
    AC_SUBST(ANSI2KNR)dnl
    ])
    
    
    # serial 1
    
    # @defmac AC_PROG_CC_STDC
    # @maindex PROG_CC_STDC
    # @ovindex CC
    # If the C compiler in not in ANSI C mode by default, try to add an option
    # to output variable @code{CC} to make it so.  This macro tries various
    # options that select ANSI C on some system or another.  It considers the
    # compiler to be in ANSI C mode if it handles function prototypes correctly.
    #
    # If you use this macro, you should check after calling it whether the C
    # compiler has been set to accept ANSI C; if not, the shell variable
    # @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
    # code in ANSI C, you can make an un-ANSIfied copy of it by using the
    # program @code{ansi2knr}, which comes with Ghostscript.
    # @end defmac
    
    AC_DEFUN(AM_PROG_CC_STDC,
    [AC_REQUIRE([AC_PROG_CC])
    AC_BEFORE([$0], [AC_C_INLINE])
    AC_BEFORE([$0], [AC_C_CONST])
    dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
    dnl a magic option to avoid problems with ANSI preprocessor commands
    dnl like #elif.
    dnl FIXME: can't do this because then AC_AIX won't work due to a
    dnl circular dependency.
    dnl AC_BEFORE([$0], [AC_PROG_CPP])
    AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
    AC_CACHE_VAL(am_cv_prog_cc_stdc,
    [am_cv_prog_cc_stdc=no
    ac_save_CC="$CC"
    # Don't try gcc -ansi; that turns off useful extensions and
    # breaks some systems' header files.
    # AIX			-qlanglvl=ansi
    # Ultrix and OSF/1	-std1
    # HP-UX			-Aa -D_HPUX_SOURCE
    # SVR4			-Xc -D__EXTENSIONS__
    for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
    do
      CC="$ac_save_CC $ac_arg"
      AC_TRY_COMPILE(
    [#include <stdarg.h>
    #include <stdio.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
    struct buf { int x; };
    FILE * (*rcsopen) (struct buf *, struct stat *, int);
    static char *e (p, i)
         char **p;
         int i;
    {
      return p[i];
    }
    static char *f (char * (*g) (char **, int), char **p, ...)
    {
      char *s;
      va_list v;
      va_start (v,p);
      s = g (p, va_arg (v,int));
      va_end (v);
      return s;
    }
    int test (int i, double x);
    struct s1 {int (*f) (int a);};
    struct s2 {int (*f) (double a);};
    int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
    int argc;
    char **argv;
    ], [
    return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
    ],
    [am_cv_prog_cc_stdc="$ac_arg"; break])
    done
    CC="$ac_save_CC"
    ])
    if test -z "$am_cv_prog_cc_stdc"; then
      AC_MSG_RESULT([none needed])
    else
      AC_MSG_RESULT($am_cv_prog_cc_stdc)
    fi
    case "x$am_cv_prog_cc_stdc" in
      x|xno) ;;
      *) CC="$CC $am_cv_prog_cc_stdc" ;;
    esac
    ])
    
    
    # serial 40 AC_PROG_LIBTOOL
    AC_DEFUN(AC_PROG_LIBTOOL,
    [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
    
    # Save cache, so that ltconfig can load it
    AC_CACHE_SAVE
    
    # Actually configure libtool.  ac_aux_dir is where install-sh is found.
    CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
    LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
    LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
    DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
    ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
    $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
    || AC_MSG_ERROR([libtool configure failed])
    
    # Reload cache, that may have been modified by ltconfig
    AC_CACHE_LOAD
    
    # This can be used to rebuild libtool when needed
    LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"
    
    # Always use our own libtool.
    LIBTOOL='$(SHELL) $(top_builddir)/libtool'
    AC_SUBST(LIBTOOL)dnl
    
    # Redirect the config.log output again, so that the ltconfig log is not
    # clobbered by the next message.
    exec 5>>./config.log
    ])
    
    AC_DEFUN(AC_LIBTOOL_SETUP,
    [AC_PREREQ(2.13)dnl
    AC_REQUIRE([AC_ENABLE_SHARED])dnl
    AC_REQUIRE([AC_ENABLE_STATIC])dnl
    AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
    AC_REQUIRE([AC_CANONICAL_HOST])dnl
    AC_REQUIRE([AC_CANONICAL_BUILD])dnl
    AC_REQUIRE([AC_PROG_RANLIB])dnl
    AC_REQUIRE([AC_PROG_CC])dnl
    AC_REQUIRE([AC_PROG_LD])dnl
    AC_REQUIRE([AC_PROG_NM])dnl
    AC_REQUIRE([AC_PROG_LN_S])dnl
    dnl
    
    case "$target" in
    NONE) lt_target="$host" ;;
    *) lt_target="$target" ;;
    esac
    
    # Check for any special flags to pass to ltconfig.
    #
    # the following will cause an existing older ltconfig to fail, so
    # we ignore this at the expense of the cache file... Checking this 
    # will just take longer ... bummer!
    #libtool_flags="--cache-file=$cache_file"
    #
    test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
    test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
    test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
    test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
    test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
    ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
    [libtool_flags="$libtool_flags --enable-dlopen"])
    ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
    [libtool_flags="$libtool_flags --enable-win32-dll"])
    AC_ARG_ENABLE(libtool-lock,
      [  --disable-libtool-lock  avoid locking (might break parallel builds)])
    test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
    test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
    
    # Some flags need to be propagated to the compiler or linker for good
    # libtool support.
    case "$lt_target" in
    *-*-irix6*)
      # Find out which ABI we are using.
      echo '[#]line __oline__ "configure"' > conftest.$ac_ext
      if AC_TRY_EVAL(ac_compile); then
        case "`/usr/bin/file conftest.o`" in
        *32-bit*)
          LD="${LD-ld} -32"
          ;;
        *N32*)
          LD="${LD-ld} -n32"
          ;;
        *64-bit*)
          LD="${LD-ld} -64"
          ;;
        esac
      fi
      rm -rf conftest*
      ;;
    
    *-*-sco3.2v5*)
      # On SCO OpenServer 5, we need -belf to get full-featured binaries.
      SAVE_CFLAGS="$CFLAGS"
      CFLAGS="$CFLAGS -belf"
      AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
        [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
      if test x"$lt_cv_cc_needs_belf" != x"yes"; then
        # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
        CFLAGS="$SAVE_CFLAGS"
      fi
      ;;
    
    ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
    [*-*-cygwin* | *-*-mingw*)
      AC_CHECK_TOOL(DLLTOOL, dlltool, false)
      AC_CHECK_TOOL(AS, as, false)
      AC_CHECK_TOOL(OBJDUMP, objdump, false)
      ;;
    ])
    esac
    ])
    
    # AC_LIBTOOL_DLOPEN - enable checks for dlopen support
    AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
    
    # AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
    AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
    
    # AC_ENABLE_SHARED - implement the --enable-shared flag
    # Usage: AC_ENABLE_SHARED[(DEFAULT)]
    #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
    #   `yes'.
    AC_DEFUN(AC_ENABLE_SHARED, [dnl
    define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
    AC_ARG_ENABLE(shared,
    changequote(<<, >>)dnl
    <<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
    changequote([, ])dnl
    [p=${PACKAGE-default}
    case "$enableval" in
    yes) enable_shared=yes ;;
    no) enable_shared=no ;;
    *)
      enable_shared=no
      # Look at the argument we got.  We use all the common list separators.
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
      for pkg in $enableval; do
        if test "X$pkg" = "X$p"; then
          enable_shared=yes
        fi
      done
      IFS="$ac_save_ifs"
      ;;
    esac],
    enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
    ])
    
    # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
    AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
    AC_ENABLE_SHARED(no)])
    
    # AC_ENABLE_STATIC - implement the --enable-static flag
    # Usage: AC_ENABLE_STATIC[(DEFAULT)]
    #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
    #   `yes'.
    AC_DEFUN(AC_ENABLE_STATIC, [dnl
    define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
    AC_ARG_ENABLE(static,
    changequote(<<, >>)dnl
    <<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
    changequote([, ])dnl
    [p=${PACKAGE-default}
    case "$enableval" in
    yes) enable_static=yes ;;
    no) enable_static=no ;;
    *)
      enable_static=no
      # Look at the argument we got.  We use all the common list separators.
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
      for pkg in $enableval; do
        if test "X$pkg" = "X$p"; then
          enable_static=yes
        fi
      done
      IFS="$ac_save_ifs"
      ;;
    esac],
    enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
    ])
    
    # AC_DISABLE_STATIC - set the default static flag to --disable-static
    AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
    AC_ENABLE_STATIC(no)])
    
    
    # AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
    # Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
    #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
    #   `yes'.
    AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
    define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
    AC_ARG_ENABLE(fast-install,
    changequote(<<, >>)dnl
    <<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
    changequote([, ])dnl
    [p=${PACKAGE-default}
    case "$enableval" in
    yes) enable_fast_install=yes ;;
    no) enable_fast_install=no ;;
    *)
      enable_fast_install=no
      # Look at the argument we got.  We use all the common list separators.
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
      for pkg in $enableval; do
        if test "X$pkg" = "X$p"; then
          enable_fast_install=yes
        fi
      done
      IFS="$ac_save_ifs"
      ;;
    esac],
    enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
    ])
    
    # AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
    AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
    AC_ENABLE_FAST_INSTALL(no)])
    
    # AC_PROG_LD - find the path to the GNU or non-GNU linker
    AC_DEFUN(AC_PROG_LD,
    [AC_ARG_WITH(gnu-ld,
    [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
    test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
    AC_REQUIRE([AC_PROG_CC])dnl
    AC_REQUIRE([AC_CANONICAL_HOST])dnl
    AC_REQUIRE([AC_CANONICAL_BUILD])dnl
    ac_prog=ld
    if test "$ac_cv_prog_gcc" = yes; then
      # Check if gcc -print-prog-name=ld gives a path.
      AC_MSG_CHECKING([for ld used by GCC])
      ac_prog=`($CC -print-prog-name=ld) 2>&5`
      case "$ac_prog" in
        # Accept absolute paths.
    changequote(,)dnl
        [\\/]* | [A-Za-z]:[\\/]*)
          re_direlt='/[^/][^/]*/\.\./'
    changequote([,])dnl
          # Canonicalize the path of ld
          ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
          while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
    	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
          done
          test -z "$LD" && LD="$ac_prog"
          ;;
      "")
        # If it fails, then pretend we aren't using GCC.
        ac_prog=ld
        ;;
      *)
        # If it is relative, then search for the first ld in PATH.
        with_gnu_ld=unknown
        ;;
      esac
    elif test "$with_gnu_ld" = yes; then
      AC_MSG_CHECKING([for GNU ld])
    else
      AC_MSG_CHECKING([for non-GNU ld])
    fi
    AC_CACHE_VAL(ac_cv_path_LD,
    [if test -z "$LD"; then
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
      for ac_dir in $PATH; do
        test -z "$ac_dir" && ac_dir=.
        if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
          ac_cv_path_LD="$ac_dir/$ac_prog"
          # Check to see if the program is GNU ld.  I'd rather use --version,
          # but apparently some GNU ld's only accept -v.
          # Break only if it was the GNU/non-GNU ld that we prefer.
          if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
    	test "$with_gnu_ld" != no && break
          else
    	test "$with_gnu_ld" != yes && break
          fi
        fi
      done
      IFS="$ac_save_ifs"
    else
      ac_cv_path_LD="$LD" # Let the user override the test with a path.
    fi])
    LD="$ac_cv_path_LD"
    if test -n "$LD"; then
      AC_MSG_RESULT($LD)
    else
      AC_MSG_RESULT(no)
    fi
    test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
    AC_PROG_LD_GNU
    ])
    
    AC_DEFUN(AC_PROG_LD_GNU,
    [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
    [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
    if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
      ac_cv_prog_gnu_ld=yes
    else
      ac_cv_prog_gnu_ld=no
    fi])
    ])
    
    # AC_PROG_NM - find the path to a BSD-compatible name lister
    AC_DEFUN(AC_PROG_NM,
    [AC_MSG_CHECKING([for BSD-compatible nm])
    AC_CACHE_VAL(ac_cv_path_NM,
    [if test -n "$NM"; then
      # Let the user override the test.
      ac_cv_path_NM="$NM"
    else
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
      for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
        test -z "$ac_dir" && ac_dir=.
        if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
          # Check to see if the nm accepts a BSD-compat flag.
          # Adding the `sed 1q' prevents false positives on HP-UX, which says:
          #   nm: unknown option "B" ignored
          if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
    	ac_cv_path_NM="$ac_dir/nm -B"
    	break
          elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
    	ac_cv_path_NM="$ac_dir/nm -p"
    	break
          else
    	ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
    	continue # so that we can try to find one that supports BSD flags
          fi
        fi
      done
      IFS="$ac_save_ifs"
      test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
    fi])
    NM="$ac_cv_path_NM"
    AC_MSG_RESULT([$NM])
    ])
    
    # AC_CHECK_LIBM - check for math library
    AC_DEFUN(AC_CHECK_LIBM,
    [AC_REQUIRE([AC_CANONICAL_HOST])dnl
    LIBM=
    case "$lt_target" in
    *-*-beos* | *-*-cygwin*)
      # These system don't have libm
      ;;
    *-ncr-sysv4.3*)
      AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
      AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
      ;;
    *)
      AC_CHECK_LIB(m, main, LIBM="-lm")
      ;;
    esac
    ])
    
    # AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
    # the libltdl convenience library, adds --enable-ltdl-convenience to
    # the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
    # is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
    # to be `${top_builddir}/libltdl'.  Make sure you start DIR with
    # '${top_builddir}/' (note the single quotes!) if your package is not
    # flat, and, if you're not using automake, define top_builddir as
    # appropriate in the Makefiles.
    AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
      case "$enable_ltdl_convenience" in
      no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
      "") enable_ltdl_convenience=yes
          ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
      esac
      LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
      INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
    ])
    
    # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
    # the libltdl installable library, and adds --enable-ltdl-install to
    # the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
    # is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
    # to be `${top_builddir}/libltdl'.  Make sure you start DIR with
    # '${top_builddir}/' (note the single quotes!) if your package is not
    # flat, and, if you're not using automake, define top_builddir as
    # appropriate in the Makefiles.
    # In the future, this macro may have to be called after AC_PROG_LIBTOOL.
    AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
      AC_CHECK_LIB(ltdl, main,
      [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
      [if test x"$enable_ltdl_install" = xno; then
         AC_MSG_WARN([libltdl not installed, but installation disabled])
       else
         enable_ltdl_install=yes
       fi
      ])
      if test x"$enable_ltdl_install" = x"yes"; then
        ac_configure_args="$ac_configure_args --enable-ltdl-install"
        LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
        INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
      else
        ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
        LIBLTDL="-lltdl"
        INCLTDL=
      fi
    ])
    
    dnl old names
    AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
    AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
    AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
    AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
    AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
    AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
    AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
    
    dnl This is just to silence aclocal about the macro not being used
    ifelse([AC_DISABLE_FAST_INSTALL])dnl
    
    # Add --enable-maintainer-mode option to configure.
    # From Jim Meyering
    
    # serial 1
    
    AC_DEFUN(AM_MAINTAINER_MODE,
    [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
      dnl maintainer-mode is disabled by default
      AC_ARG_ENABLE(maintainer-mode,
    [  --enable-maintainer-mode enable make rules and dependencies not useful
                              (and sometimes confusing) to the casual installer],
          USE_MAINTAINER_MODE=$enableval,
          USE_MAINTAINER_MODE=no)
      AC_MSG_RESULT($USE_MAINTAINER_MODE)
      AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
      MAINT=$MAINTAINER_MODE_TRUE
      AC_SUBST(MAINT)dnl
    ]
    )
    
    # Define a conditional.
    
    AC_DEFUN(AM_CONDITIONAL,
    [AC_SUBST($1_TRUE)
    AC_SUBST($1_FALSE)
    if $2; then
      $1_TRUE=
      $1_FALSE='#'
    else
      $1_TRUE='#'
      $1_FALSE=
    fi])