File: aclocal.m4

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dnl aclocal.m4t generated automatically by aclocal 1.4-p6

dnl Copyright (C) 1994, 1995-8, 1999, 2001 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 @(#)$Mu: mgv/acinclude.m4 1.5 1998/08/25 21:34:32 $
dnl
dnl acinclude.m4
dnl	local automake/autoconf/m4 fun for mgv.
dnl
dnl Copyright (C) 1998 Eric A. Howe
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
dnl
dnl   Authors:	Eric A. Howe (mu@trends.net)
dnl

dnl
dnl ICE_FIND_XPM
dnl ---------------
dnl
dnl Find Xpm libraries and headers.
dnl Put Xpm include directory in xpm_includes,
dnl put Xpm library directory in xpm_libraries,
dnl and add appropriate flags to X_CFLAGS and X_LIBS.
dnl
dnl Set @XPM_LIBS@ to -lXpm if appropriate.
dnl
dnl Borrowed from DDD.
dnl
AC_DEFUN(ICE_FIND_XPM,
[
AC_REQUIRE([AC_PATH_XTRA])
xpm_includes=
xpm_libraries=
AC_ARG_WITH(xpm,
[  --without-xpm                    do not use the Xpm library],
with_xpm=no)
dnl Treat --without-xpm like
dnl --without-xpm-includes --without-xpm-libraries.
if test "$with_xpm" = "no"
then
xpm_includes=no
xpm_libraries=no
fi
AC_ARG_WITH(xpm-includes,
[  --with-xpm-includes=DIR          Xpm include files are in DIR],
xpm_includes="$withval")
AC_ARG_WITH(xpm-libraries,
[  --with-xpm-libraries=DIR         Xpm libraries are in DIR],
xpm_libraries="$withval")
AC_MSG_CHECKING(for Xpm)
#
#
# Search the include files.  Note that XPM can come in <X11/xpm.h> (as
# in X11R6) or in <xpm.h> if installed locally.
#
if test "$xpm_includes" = ""; then
AC_CACHE_VAL(ice_cv_xpm_includes,
[
ice_xpm_save_LIBS="$LIBS"
ice_xpm_save_CFLAGS="$CFLAGS"
ice_xpm_save_CPPFLAGS="$CPPFLAGS"
ice_xpm_save_LDFLAGS="$LDFLAGS"
#
LIBS="$X_PRE_LIBS -lXpm -lXt -lX11 $X_EXTRA_LIBS $LIBS"
CFLAGS="$X_CFLAGS $CFLAGS"
CPPFLAGS="$X_CFLAGS $CPPFLAGS"
LDFLAGS="$X_LIBS $LDFLAGS"
#
AC_TRY_COMPILE([
#include <X11/xpm.h>
],[int a;],
[
# X11/xpm.h is in the standard search path.
ice_cv_xpm_includes=
],
[
# X11/xpm.h is not in the standard search path.
# Locate it and put its directory in `xpm_includes'
#
# /usr/include/Motif* are used on HP-UX (Motif).
# /usr/include/X11* are used on HP-UX (X and Xaw).
# /usr/dt is used on Solaris (Motif).
# /usr/openwin is used on Solaris (X and Xaw).
# Other directories are just guesses.
ice_cv_xpm_includes=no
for dir in "$x_includes" "${prefix}/include" /usr/include /usr/local/include \
           /usr/include/Motif2.0 /usr/include/Motif1.2 /usr/include/Motif1.1 \
           /usr/include/X11R6 /usr/include/X11R5 /usr/include/X11R4 \
           /usr/dt/include /usr/openwin/include \
           /usr/dt/*/include /opt/*/include /usr/include/Motif* \
	   "${prefix}"/*/include /usr/*/include /usr/local/*/include \
	   "${prefix}"/include/* /usr/include/* /usr/local/include/*; do
if test -f "$dir/X11/xpm.h" || test -f "$dir/xpm.h"; then
ice_cv_xpm_includes="$dir"
echo "found xpm.h from $dir" 1>&5
break
fi
done
])
#
LIBS="$ice_xpm_save_LIBS"
CFLAGS="$ice_xpm_save_CFLAGS"
CPPFLAGS="$ice_xpm_save_CPPFLAGS"
LDFLAGS="$ice_xpm_save_LDFLAGS"
])
xpm_includes="$ice_cv_xpm_includes"
fi
#
#
# Now for the libraries.
#
if test "$xpm_libraries" = ""; then
AC_CACHE_VAL(ice_cv_xpm_libraries,
[
ice_xpm_save_LIBS="$LIBS"
ice_xpm_save_CFLAGS="$CFLAGS"
ice_xpm_save_CPPFLAGS="$CPPFLAGS"
ice_xpm_save_LDFLAGS="$LDFLAGS"
#
LIBS="$X_PRE_LIBS -lXpm -lXt -lX11 $X_EXTRA_LIBS $LIBS"
CFLAGS="$X_CFLAGS $CFLAGS"
CPPFLAGS="$X_CFLAGS $CPPFLAGS"
LDFLAGS="$X_LIBS $LDFLAGS"
#
#
# We use XtToolkitInitialize() here since it takes no arguments
# and thus also works with a C++ compiler.
AC_TRY_LINK([
#include <X11/Intrinsic.h>
#include <X11/xpm.h>
],[XtToolkitInitialize();],
[
# libxpm.a is in the standard search path.
ice_cv_xpm_libraries=
],
[
# libXpm.a is not in the standard search path.
# Locate it and put its directory in `xpm_libraries'
#
#
# /usr/lib/Motif* are used on HP-UX (Motif).
# /usr/lib/X11* are used on HP-UX (X and Xpm).
# /usr/dt is used on Solaris (Motif).
# /usr/openwin is used on Solaris (X and Xpm).
# Other directories are just guesses.
ice_cv_xpm_libraries=no
for dir in "$x_libraries" "${prefix}/lib" /usr/lib /usr/local/lib \
	   /usr/lib/Motif2.1 /usr/lib/Motif2.0 /usr/lib/Motif1.2 \
	   /usr/lib/Motif1.1 /usr/lib/X11R6 /usr/lib/X11R5 /usr/lib/X11R4 \
	   /usr/lib/X11 /usr/dt/lib /usr/openwin/lib \
	   /usr/dt/*/lib /opt/*/lib /usr/lib/Motif* \
	   "${prefix}"/*/lib /usr/*/lib /usr/local/*/lib \
	   "${prefix}"/lib/* /usr/lib/* /usr/local/lib/*; do
if test -d "$dir" && test "`ls $dir/libXpm.* 2> /dev/null`" != ""; then
ice_cv_xpm_libraries="$dir"
echo "found libXpm from $dir" 1>&5
break
fi
done
])
#
LIBS="$ice_xpm_save_LIBS"
CFLAGS="$ice_xpm_save_CFLAGS"
CPPFLAGS="$ice_xpm_save_CPPFLAGS"
LDFLAGS="$ice_xpm_save_LDFLAGS"
])
#
xpm_libraries="$ice_cv_xpm_libraries"
fi
#
# Define XPM in config.h or disable XPM completely of either the header 
# or the library was not found.
#
if test "$xpm_libraries" != "no"  &&  test "$xpm_includes" != "no"; then
AC_DEFINE(XPM,1)
else
xpm_libraries=no
xpm_includes=no
fi
#
# Add Xpm definitions to X flags
#
if test "$xpm_includes" != "" && test "$xpm_includes" != "$x_includes" && test "$xpm_includes" != "no"
then
X_CFLAGS="-I$xpm_includes $X_CFLAGS"
fi
if test "$xpm_libraries" != "" && test "$xpm_libraries" != "$x_libraries" && test "$xpm_libraries" != "no"
then
case "$X_LIBS" in
  *-R\ *) X_LIBS="-L$xpm_libraries -R $xpm_libraries $X_LIBS";;
  *-R*)   X_LIBS="-L$xpm_libraries -R$xpm_libraries $X_LIBS";;
  *)      X_LIBS="-L$xpm_libraries $X_LIBS";;
esac
fi
#
#
xpm_libraries_result="$xpm_libraries"
xpm_includes_result="$xpm_includes"
test "$xpm_libraries_result" = "" && 
  xpm_libraries_result="in default path"
test "$xpm_includes_result" = "" && 
  xpm_includes_result="in default path"
test "$xpm_libraries_result" = "no" && 
  xpm_libraries_result="(none)"
test "$xpm_includes_result" = "no" && 
  xpm_includes_result="(none)"
AC_MSG_RESULT(
  [libraries $xpm_libraries_result, headers $xpm_includes_result])
#
# Export @XPM_LIBS@ to Makefile.am
#
if test "$xpm_libraries" != "no"; then
XPM_LIBS="-lXpm"
else
XPM_LIBS=""
fi
AC_SUBST(XPM_LIBS)
])dnl

dnl
dnl ICE_FIND_MOTIF
dnl --------------
dnl
dnl Find Motif libraries and headers
dnl Put Motif include directory in motif_includes,
dnl put Motif library directory in motif_libraries,
dnl and add appropriate flags to X_CFLAGS and X_LIBS.
dnl
dnl Borrowed from DDD.
dnl
AC_DEFUN(ICE_FIND_MOTIF,
[
AC_REQUIRE([AC_PATH_XTRA])
motif_includes=
motif_libraries=
AC_ARG_WITH(motif-includes,
[  --with-motif-includes=DIR        Motif include files are in DIR],
motif_includes="$withval")
AC_ARG_WITH(motif-libraries,
[  --with-motif-libraries=DIR       Motif libraries are in DIR],
motif_libraries="$withval")
AC_MSG_CHECKING(for Motif)
#
#
# Search the include files.
#
if test "$motif_includes" = ""; then
AC_CACHE_VAL(ice_cv_motif_includes,
[
ice_motif_save_LIBS="$LIBS"
ice_motif_save_CFLAGS="$CFLAGS"
ice_motif_save_CPPFLAGS="$CPPFLAGS"
ice_motif_save_LDFLAGS="$LDFLAGS"
#
LIBS="$X_PRE_LIBS -lXm -lXt -lX11 $X_EXTRA_LIBS $LIBS"
CFLAGS="$X_CFLAGS $CFLAGS"
CPPFLAGS="$X_CFLAGS $CPPFLAGS"
LDFLAGS="$X_LIBS $LDFLAGS"
#
AC_TRY_COMPILE([#include <Xm/Xm.h>],[int a;],
[
# Xm/Xm.h is in the standard search path.
ice_cv_motif_includes=
],
[
# Xm/Xm.h is not in the standard search path.
# Locate it and put its directory in `motif_includes'
#
# /usr/include/Motif* are used on HP-UX (Motif).
# /usr/include/X11* are used on HP-UX (X and Athena).
# /usr/dt is used on Solaris (Motif).
# /usr/openwin is used on Solaris (X and Athena).
# Other directories are just guesses.
for dir in "$x_includes" "${prefix}/include" /usr/include /usr/local/include \
           /usr/include/Motif2.0 /usr/include/Motif1.2 /usr/include/Motif1.1 \
           /usr/include/X11R6 /usr/include/X11R5 /usr/include/X11R4 \
           /usr/dt/include /usr/openwin/include \
           /usr/dt/*/include /opt/*/include /usr/include/Motif* \
	   "${prefix}"/*/include /usr/*/include /usr/local/*/include \
	   "${prefix}"/include/* /usr/include/* /usr/local/include/*; do
if test -f "$dir/Xm/Xm.h"; then
ice_cv_motif_includes="$dir"
break
fi
done
if test "$ice_cv_motif_includes" = ""; then
ice_cv_motif_includes=no
fi
])
#
LIBS="$ice_motif_save_LIBS"
CFLAGS="$ice_motif_save_CFLAGS"
CPPFLAGS="$ice_motif_save_CPPFLAGS"
LDFLAGS="$ice_motif_save_LDFLAGS"
])
motif_includes="$ice_cv_motif_includes"
fi
#
#
# Now for the libraries.
#
if test "$motif_libraries" = ""; then
AC_CACHE_VAL(ice_cv_motif_libraries,
[
ice_motif_save_LIBS="$LIBS"
ice_motif_save_CFLAGS="$CFLAGS"
ice_motif_save_CPPFLAGS="$CPPFLAGS"
ice_motif_save_LDFLAGS="$LDFLAGS"
#
LIBS="$X_PRE_LIBS -lXm -lXt -lX11 $X_EXTRA_LIBS $LIBS"
CFLAGS="$X_CFLAGS $CFLAGS"
CPPFLAGS="$X_CFLAGS $CPPFLAGS"
LDFLAGS="$X_LIBS $LDFLAGS"
#
# We use XtToolkitInitialize() here since it takes no arguments
# and thus also works with a C++ compiler.
AC_TRY_LINK([
#include <X11/Intrinsic.h>
#include <Xm/Xm.h>
],[XtToolkitInitialize();],
[
# libXm.a is in the standard search path.
ice_cv_motif_libraries=
],
[
# libXm.a is not in the standard search path.
# Locate it and put its directory in `motif_libraries'
#
# /usr/lib/Motif* are used on HP-UX (Motif).
# /usr/lib/X11* are used on HP-UX (X and Athena).
# /usr/dt is used on Solaris (Motif).
# /usr/lesstif is used on Linux (Lesstif).
# /usr/openwin is used on Solaris (X and Athena).
# Other directories are just guesses.
for dir in "$x_libraries" "${prefix}/lib" /usr/lib /usr/local/lib \
	   /usr/lib/Motif2.0 /usr/lib/Motif1.2 /usr/lib/Motif1.1 \
	   /usr/lib/X11R6 /usr/lib/X11R5 /usr/lib/X11R4 /usr/lib/X11 \
           /usr/dt/lib /usr/openwin/lib \
	   /usr/dt/*/lib /opt/*/lib /usr/lib/Motif* \
           /usr/lesstif*/lib /usr/lib/Lesstif* \
	   "${prefix}"/*/lib /usr/*/lib /usr/local/*/lib \
	   "${prefix}"/lib/* /usr/lib/* /usr/local/lib/*; do
if test -d "$dir" && test "`ls $dir/libXm.* 2> /dev/null`" != ""; then
ice_cv_motif_libraries="$dir"
break
fi
done
if test "$ice_cv_motif_libraries" = ""; then
ice_cv_motif_libraries=no
fi
])
#
LIBS="$ice_motif_save_LIBS"
CFLAGS="$ice_motif_save_CFLAGS"
CPPFLAGS="$ice_motif_save_CPPFLAGS"
LDFLAGS="$ice_motif_save_LDFLAGS"
])
#
motif_libraries="$ice_cv_motif_libraries"
fi
# Add Motif definitions to X flags
#
if test "$motif_includes" != "" && test "$motif_includes" != "$x_includes" && test "$motif_includes" != "no"
then
X_CFLAGS="-I$motif_includes $X_CFLAGS"
fi
if test "$motif_libraries" != "" && test "$motif_libraries" != "$x_libraries" && test "$motif_libraries" != "no"
then
case "$X_LIBS" in
  *-R\ *) X_LIBS="-L$motif_libraries -R $motif_libraries $X_LIBS";;
  *-R*)   X_LIBS="-L$motif_libraries -R$motif_libraries $X_LIBS";;
  *)      X_LIBS="-L$motif_libraries $X_LIBS";;
esac
fi
#
#
motif_libraries_result="$motif_libraries"
motif_includes_result="$motif_includes"
test "$motif_libraries_result" = "" && 
  motif_libraries_result="in default path"
test "$motif_includes_result" = "" && 
  motif_includes_result="in default path"
test "$motif_libraries_result" = "no" && 
  motif_libraries_result="(none)"
test "$motif_includes_result" = "no" && 
  motif_includes_result="(none)"
AC_MSG_RESULT(
  [libraries $motif_libraries_result, headers $motif_includes_result])
])dnl
# Usage:
#  SIM_AC_CHECK_PTHREAD([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
#
#  Try to find the PTHREAD development system. If it is found, these
#  shell variables are set:
#
#    $sim_ac_pthread_cppflags (extra flags the compiler needs for pthread)
#    $sim_ac_pthread_ldflags  (extra flags the linker needs for pthread)
#    $sim_ac_pthread_libs     (link libraries the linker needs for pthread)
#
#  The CPPFLAGS, LDFLAGS and LIBS flags will also be modified accordingly.
#  In addition, the variable $sim_ac_pthread_avail is set to "yes" if the
#  pthread development system is found.
#
#
# Author: Morten Eriksen, <mortene@sim.no>.

AC_DEFUN([SIM_AC_CHECK_PTHREAD], [

AC_ARG_WITH(
  [pthread],
  [  --with-pthread          pthread installation directory],
  [],[with_pthread=yes])

sim_ac_pthread_avail=no

if test x"$with_pthread" != xno; then
  if test x"$with_pthread" != xyes; then
    sim_ac_pthread_cppflags="-I${with_pthread}/include"
    sim_ac_pthread_ldflags="-L${with_pthread}/lib"
  fi
  sim_ac_pthread_libs_first="-lpthread"
  sim_ac_pthread_libs_second="-pthread"
  sim_ac_pthread_libs_third="-lc_r"
  sim_ac_pthread_libs=""
# FreeBSD 4.x use "-pthread" or "-lc_r"

  sim_ac_save_cppflags=$CPPFLAGS
  sim_ac_save_ldflags=$LDFLAGS
  sim_ac_save_libs=$LIBS

  AC_CACHE_CHECK(
    [whether the pthread development system is available],
    sim_cv_lib_pthread_avail,
    [
	for sim_pthread_libs in $sim_ac_pthread_libs_first \
	$sim_ac_pthread_libs_second $sim_ac_pthread_libs_third ; do
	  if test x"$sim_cv_lib_pthread_avail" != x"yes" ; then
		CPPFLAGS="$CPPFLAGS $sim_ac_pthread_cppflags"
		LDFLAGS="$LDFLAGS $sim_ac_pthread_ldflags"
		LIBS="$sim_pthread_libs $LIBS"
		AC_TRY_LINK([#include <pthread.h>],
                 [(void)pthread_create(0L, 0L, 0L, 0L);],
                 [sim_cv_lib_pthread_avail=yes
	    	  sim_ac_pthread_libs="$sim_pthread_libs"
			],
                 [sim_cv_lib_pthread_avail=no])
	  fi
	  if test x"$sim_cv_lib_pthread_avail" != x"yes"; then
            CPPFLAGS=$sim_ac_save_cppflags
    	    LDFLAGS=$sim_ac_save_ldflags
    	    LIBS=$sim_ac_save_libs	
	  fi
	done
    ]
  )

  if test x"$sim_cv_lib_pthread_avail" = xyes; then
    sim_ac_pthread_avail=yes
    $1
  else
    CPPFLAGS=$sim_ac_save_cppflags
    LDFLAGS=$sim_ac_save_ldflags
    LIBS=$sim_ac_save_libs
    $2
  fi
fi
])

# Usage:
#  SIM_AC_CHECK_OPENGL([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
#
#  Try to find an OpenGL development system, either a native
#  implementation or the OpenGL-compatible Mesa library. If
#  it is found, these shell variables are set:
#
#    $sim_ac_gl_cppflags (extra flags the compiler needs for OpenGL/Mesa)
#    $sim_ac_gl_ldflags  (extra flags the linker needs for OpenGL/Mesa)
#    $sim_ac_gl_libs     (link libraries the linker needs for OpenGL/Mesa)
#
#  The CPPFLAGS, LDFLAGS and LIBS flags will also be modified accordingly.
#  In addition, the variable $sim_ac_gl_avail is set to "yes" if an
#  OpenGL-compatible development system is found.
#
#
# Author: Morten Eriksen, <mortene@sim.no>.

AC_DEFUN(SIM_AC_CHECK_OPENGL, [

unset sim_ac_gl_cppflags
unset sim_ac_gl_ldflags
unset sim_ac_gl_libs
sim_ac_gl_avail=no

AC_ARG_WITH(
  [mesa],
  [  --with-mesa             prefer MesaGL (if found) over OpenGL [[default=yes]]],
  [],[with_mesa=yes])

# It's usually libGL.so on UNIX systems and opengl32.lib on MSWindows.
sim_ac_gl_glnames="-lGL -lopengl32"
sim_ac_gl_mesaglnames=-lMesaGL
GL_LIBS=""

if test "x$with_mesa" = "xyes"; then
  sim_ac_gl_first=$sim_ac_gl_mesaglnames
  sim_ac_gl_second=$sim_ac_gl_glnames
else
  sim_ac_gl_first=$sim_ac_gl_glnames
  sim_ac_gl_second=$sim_ac_gl_mesaglnames
fi

AC_ARG_WITH(
  [opengl],
  [  --with-opengl           OpenGL/Mesa installation directory],[],[with_opengl=yes])

if test x"$with_opengl" != xno; then
  if test x"$with_opengl" != xyes; then
    sim_ac_gl_cppflags="-I${with_opengl}/include"
    sim_ac_gl_ldflags="-L${with_opengl}/lib"
  else
    # This is a common location for the OpenGL library on HPUX.
    sim_ac_gl_hpux=/opt/graphics/OpenGL
    if test -d $sim_ac_gl_hpux; then
      sim_ac_gl_cppflags=-I$sim_ac_gl_hpux/include
      sim_ac_gl_ldflags=-L$sim_ac_gl_hpux/lib
    fi
  fi

  sim_ac_save_cppflags=$CPPFLAGS
  sim_ac_save_ldflags=$LDFLAGS
  sim_ac_save_libs=$LIBS

  CPPFLAGS="$CPPFLAGS $sim_ac_gl_cppflags"
  LDFLAGS="$LDFLAGS $sim_ac_gl_ldflags"

  AC_CACHE_CHECK(
    [whether OpenGL library is available],
    sim_cv_lib_gl,
    [sim_cv_lib_gl=UNRESOLVED

    for sim_ac_gl_libcheck in $sim_ac_gl_first $sim_ac_gl_second; do
      if test "x$sim_cv_lib_gl" = "xUNRESOLVED"; then
        LIBS="$sim_ac_gl_libcheck $sim_ac_save_libs -lm"
        AC_TRY_LINK([
		#if HAVE_WINDOWS_H
		#include <windows.h>
		#endif /* HAVE_WINDOWS_H */
	 	#include <GL/gl.h>
		],
		[glPointSize(1.0f);],
       		[sim_cv_lib_gl="$sim_ac_gl_libcheck"],
		)
      fi
    done
  ])

  LIBS="$sim_ac_save_libs"

  if test "x$sim_cv_lib_gl" != "xUNRESOLVED"; then
    sim_ac_gl_libs="$sim_cv_lib_gl"
  else
    AC_MSG_WARN([couldn't compile or link with OpenGL library -- trying with pthread library in place...])

    SIM_AC_CHECK_PTHREAD([
      sim_ac_gl_cppflags="$sim_ac_gl_cppflags $sim_ac_pthread_cppflags"
      sim_ac_gl_ldflags="$sim_ac_gl_ldflags $sim_ac_pthread_ldflags"],
      [AC_MSG_WARN([couldn't compile or link with pthread library])])

    if test "x$sim_ac_pthread_avail" = "xyes"; then
      AC_CACHE_CHECK(
        [whether OpenGL library can be linked with pthread library],
        sim_cv_lib_gl_pthread,
        [sim_cv_lib_gl_pthread=UNRESOLVED
        for sim_ac_gl_libcheck in $sim_ac_gl_first $sim_ac_gl_second; do
          if test "x$sim_cv_lib_gl_pthread" = "xUNRESOLVED"; then
            LIBS="$sim_ac_gl_libcheck $sim_ac_pthread_libs $sim_ac_save_libs"
            AC_TRY_LINK([
#if  HAVE_WINDOWS_H
#include <windows.h>
#endif /* HAVE_WINDOWS_H */
#include <GL/gl.h>
],
                        [
glPointSize(1.0f);
],
                        [sim_cv_lib_gl_pthread="$sim_ac_gl_libcheck"])
          fi
        done
      ])

      if test "x$sim_cv_lib_gl_pthread" != "xUNRESOLVED"; then
        sim_ac_gl_libs="$sim_cv_lib_gl_pthread $sim_ac_pthread_libs"
      fi
    fi
  fi


  if test "x$sim_ac_gl_libs" != "x"; then
    LIBS="$sim_ac_save_libs"
    GL_LIBS="$sim_ac_gl_libs"
    sim_ac_gl_avail=yes
    $1
  else
    CPPFLAGS=$sim_ac_save_cppflags
    LDFLAGS=$sim_ac_save_ldflags
    LIBS=$sim_ac_save_libs
    $2
  fi
fi
])


# Usage:
#  SIM_AC_CHECK_GLU([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
#
#  Try to use the OpenGL utility library; GLU. If it is found,
#  these shell variables are set:
#
#    $sim_ac_glu_cppflags (extra flags the compiler needs for GLU)
#    $sim_ac_glu_ldflags  (extra flags the linker needs for GLU)
#    $sim_ac_glu_libs     (link libraries the linker needs for GLU)
#
#  The CPPFLAGS, LDFLAGS and LIBS flags will also be modified accordingly.
#  In addition, the variable $sim_ac_gly_avail is set to "yes" if GLU
#  is found.
#
#
# Author: Morten Eriksen, <mortene@sim.no>.

AC_DEFUN(SIM_AC_CHECK_GLU, [

unset sim_ac_glu_cppflags
unset sim_ac_glu_ldflags
unset sim_ac_glu_libs
sim_ac_glu_avail=no

# It's usually libGLU.so on UNIX systems and glu32.lib on MSWindows.
sim_ac_glu_names="-lGLU -lglu32"
sim_ac_glu_mesanames=-lMesaGLU
# with_mesa is set from the SIM_AC_CHECK_OPENGL macro.
if test "x$with_mesa" = "xyes"; then
  sim_ac_glu_first=$sim_ac_glu_mesanames
  sim_ac_glu_second=$sim_ac_glu_names
else
  sim_ac_glu_first=$sim_ac_glu_names
  sim_ac_glu_second=$sim_ac_glu_mesanames
fi

AC_ARG_WITH(
  [glu],[  --with-glu		  use the OpenGL utility library [[default=yes]]],[],[with_glu=yes])

if test x"$with_glu" != xno; then
  if test x"$with_glu" != xyes; then
    sim_ac_glu_cppflags="-I${with_glu}/include"
    sim_ac_glu_ldflags="-L${with_glu}/lib"
  fi

  sim_ac_save_cppflags=$CPPFLAGS
  sim_ac_save_ldflags=$LDFLAGS
  sim_ac_save_libs=$LIBS

  CPPFLAGS="$CPPFLAGS $sim_ac_glu_cppflags"
  LDFLAGS="$LDFLAGS $sim_ac_glu_ldflags"

  AC_CACHE_CHECK(
    [whether GLU is available],
    sim_cv_lib_glu,
    [sim_cv_lib_glu=UNRESOLVED

    # Some platforms (like BeOS) have the GLU functionality in the GL
    # library (and no GLU library present).
    for sim_ac_glu_libcheck in "" $sim_ac_glu_first $sim_ac_glu_second; do
      if test "x$sim_cv_lib_glu" = "xUNRESOLVED"; then
        LIBS="$sim_ac_glu_libcheck $sim_ac_save_libs $GL_LIBS"
        AC_TRY_LINK([
#if HAVE_WINDOWS_H
#include <windows.h>
#endif /* HAVE_WINDOWS_H */
#include <GL/gl.h>
#include <GL/glu.h>
],
                    [
gluSphere(0L, 1.0, 1, 1);
],
                    [sim_cv_lib_glu="$sim_ac_glu_libcheck"])
      fi
    done
  ])

  LIBS="$sim_ac_save_libs"

  if test "x$sim_cv_lib_glu" != "xUNRESOLVED"; then
    sim_ac_glu_libs="$sim_cv_lib_glu"
    LIBS="$sim_ac_save_libs"
    GL_LIBS="$GL_LIBS $sim_ac_glu_libs"
    sim_ac_glu_avail=yes
    $1
  else
    CPPFLAGS=$sim_ac_save_cppflags
    LDFLAGS=$sim_ac_save_ldflags
    LIBS=$sim_ac_save_libs
    $2
  fi
fi
])


# **************************************************************************
# SIM_AC_GLU_READY_IFELSE( [ACTION-IF-TRUE], [ACTION-IF-FALSE] )

AC_DEFUN([SIM_AC_GLU_READY_IFELSE],
[AC_CACHE_CHECK(
  [if GLU is available as part of GL library],
  [sim_cv_glu_ready],
  [AC_TRY_LINK(
    [
#if HAVE_WINDOWS_H
#include <windows.h>
#endif /* HAVE_WINDOWS_H */
#include <GL/gl.h>
#include <GL/glu.h>
],
    [
gluSphere(0L, 1.0, 1, 1);
],
    [sim_cv_glu_ready=true],
    [sim_cv_glu_ready=false])])
if ${sim_cv_glu_ready}; then
  ifelse([$1], , :, [$1])
else
  ifelse([$2], , :, [$2])
fi
]) # SIM_AC_GLU_READY_IFELSE()


# Usage:
#  SIM_AC_GLU_NURBSOBJECT([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
#
#  Try to find out whether the interface struct against the GLU
#  library NURBS functions is called "GLUnurbs" or "GLUnurbsObj".
#  (This seems to have changed somewhere between release 1.1 and
#  release 1.3 of GLU).
#
#  The variable $sim_ac_glu_nurbsobject is set to the correct name
#  if the nurbs structure is found.
#
# Author: Morten Eriksen, <mortene@sim.no>.

AC_DEFUN(SIM_AC_GLU_NURBSOBJECT, [
AC_CACHE_CHECK(
  [what structure to use in the GLU NURBS interface],
  sim_cv_func_glu_nurbsobject,
  [sim_cv_func_glu_nurbsobject=NONE
   for sim_ac_glu_structname in GLUnurbs GLUnurbsObj; do
    if test "$sim_cv_func_glu_nurbsobject" = NONE; then
      AC_TRY_LINK([
#if HAVE_WINDOWS_H
#include <windows.h>
#endif /* HAVE_WINDOWS_H */
#include <GL/gl.h>
#include <GL/glu.h>],
                  [$sim_ac_glu_structname * hepp = gluNewNurbsRenderer();
                   gluDeleteNurbsRenderer(hepp)],
                  [sim_cv_func_glu_nurbsobject=$sim_ac_glu_structname])
    fi
  done
])

if test $sim_cv_func_glu_nurbsobject = NONE; then
  sim_ac_glu_nurbsobject=
  $2
else
  sim_ac_glu_nurbsobject=$sim_cv_func_glu_nurbsobject
  $1
fi
])

# **************************************************************************
# SIM_AC_HAVE_GLX_IFELSE( IF-FOUND, IF-NOT-FOUND )
#
# Check whether GLX is on the system.

AC_DEFUN([SIM_AC_HAVE_GLX_IFELSE], [
AC_CACHE_CHECK(
  [whether GLX is on the system],
  sim_cv_have_glx,
  AC_TRY_LINK(
    [#include <GL/glx.h>],
    [(void)glXChooseVisual(0L, 0, 0L);],
    [sim_cv_have_glx=true],
    [sim_cv_have_glx=false]))

if ${sim_cv_have_glx=false}; then
  ifelse([$1], , :, [$1])
else
  ifelse([$2], , :, [$2])
fi
]) # SIM_AC_HAVE_GLX_IFELSE()

# Usage:
#   SIM_CHECK_MOTIF_GLWIDGET([ ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]])
#
# Description:
#   This macro checks for a GL widget that can be used with Xt/Motif.
#
# Variables:
#   $sim_cv_motif_glwidget         (cached)  class + header + library
#   $sim_cv_motif_glwidget_hdrloc  (cached)  GL | X11/GLw
#
#   $sim_ac_motif_glwidget_class             glwMDrawingAreaWidgetClass |
#                                            glwDrawingAreaWidgetClass
#   $sim_ac_motif_glwidget_header            GLwDrawA.h | GLwMDrawA.h
#   $sim_ac_motif_glwidget_library           GLwM | GLw | MesaGLwM | MesaGLw
#
#   $LIBS = -l$sim_ac_motif_glwidget_library $LIBS
#
# Defines:
#   XT_GLWIDGET                              $sim_ac_motif_glwidget_class
#   HAVE_GL_GLWDRAWA_H                       #include <GL/GLwDrawA.h>
#   HAVE_GL_GLWMDRAWA_H                      #include <GL/GLwMDrawA.h>
#   HAVE_X11_GWL_GLWDRAWA_H                  #include <X11/GLw/GLwDrawA.h>
#   HAVE_X11_GWL_GLWMDRAWA_H                 #include <X11/GLw/GLwMDrawA.h>
#
# Authors:
#   Lars J. Aas <larsa@sim.no>,
#   Loring Holden <lsh@cs.brown.edu>,
#   Morten Eriksen <mortene@sim.no>
#
 
AC_DEFUN([SIM_CHECK_MOTIF_GLWIDGET], [

AC_ARG_WITH(
[glw],[  --with-glw		  use the OpenGL widget Library [[default=yes]]], [], [with_glw=yes])

if test x"$with_glw" != x"no" ; then 
  if test x"$with_glw" != x"yes" ; then
	sim_ac_glw_cppflags="-I${with_glw}/include"
	sim_ac_glw_ldflags="-L${with_glw}/lib"
  fi

  SAVECPPFLAGS="$CPPFLAGS"
  SAVELDFLAGS="$LDFLAGS"
  SAVELIBS="$LIBS"

  CPPFLAGS="$SAVECPPFLAGS $sim_ac_glw_cppflags"
  LDFLAGS="$SAVELDFLAGS $sim_ac_glw_ldflags"
  AC_CACHE_CHECK(
  [for a GL widget],
  sim_cv_motif_glwidget,
  [
	XWIDGETLIBS="$X_LIBS $X11_LIBS $XT_LIBS $X_LIBS $X_PRE_LIBS $XM_LIBS"
  	sim_cv_motif_glwidget=UNKNOWN
  	for lib in GLwM GLw MesaGLwM MesaGLw; do
    	  if test x"$sim_cv_motif_glwidget" = x"UNKNOWN"; then
      		LIBS="-l$lib $SAVELIBS $XWIDGETLIBS $GL_LIBS -lm"
      		AC_TRY_LINK(
        		[#include <X11/Intrinsic.h>
			 #include <GL/GLwMDrawA.h>
        		extern WidgetClass glwMDrawingAreaWidgetClass;],
        		[Widget glxManager = NULL;
        		Widget glxWidget = XtVaCreateManagedWidget("GLWidget",
          		glwMDrawingAreaWidgetClass, glxManager, NULL);],
        		[sim_cv_motif_glwidget="glwMDrawingAreaWidgetClass GLwMDrawA.h $lib"],
        		[sim_cv_motif_glwidget=UNKNOWN])
    	  fi
  	done
     LIBS=$SAVELIBS
  ])
 
if test "x$sim_cv_motif_glwidget" = "xUNKNOWN"; then
  ifelse([$2], , :, [$2])
else
  sim_ac_motif_glwidget_class=`echo $sim_cv_motif_glwidget | cut -d" " -f1`
  sim_ac_motif_glwidget_header=`echo $sim_cv_motif_glwidget | cut -d" " -f2`
  sim_ac_motif_glwidget_library=`echo $sim_cv_motif_glwidget | cut -d" " -f3`
 
  AC_CACHE_CHECK(
    [the $sim_ac_motif_glwidget_header header location],
    sim_cv_motif_glwidget_hdrloc,
    [sim_cv_motif_glwidget_hdrloc=UNKNOWN
    for location in X11/GLw GL; do
     if test "x$sim_cv_motif_glwidget_hdrloc" = "xUNKNOWN"; then
        AC_TRY_CPP(
          [#include <X11/Intrinsic.h>
          #include <$location/$sim_ac_motif_glwidget_header>],
          [sim_cv_motif_glwidget_hdrloc=$location],
          [sim_cv_motif_glwidget_hdrloc=UNKNOWN])
      fi
    done])
 
  if test "x$sim_cv_motif_glwidget_hdrloc" = "xUNKNOWN"; then
    ifelse([$2], , :, [$2])
  else
    if test "x$sim_ac_motif_glwidget_header" = "xGLwDrawA.h"; then
      if test "x$sim_cv_motif_glwidget_hdrloc" = "xGL"; then
        AC_DEFINE(HAVE_GL_GLWDRAWA_H, 1,
          [Define this to use OpenGL widget from <GL/GLwDrawA.h>])
      else
        AC_DEFINE(HAVE_X11_GLW_GLWDRAWA_H, 1,
          [Define this to use OpenGL widget from <X11/GLw/GLwDrawA.h>])
      fi
    else
      if test "x$sim_cv_motif_glwidget_hdrloc" = "xGL"; then
        AC_DEFINE(HAVE_GL_GLWMDRAWA_H, 1,
          [Define this to use OpenGL widget from <GL/GLwMDrawA.h>])
      else
        AC_DEFINE(HAVE_X11_GLW_GLWMDRAWA_H, 1,
          [Define this to use OpenGL widget from <X11/GLw/GLwMDrawA.h>])
      fi
    fi
 
    AC_DEFINE_UNQUOTED(XT_GLWIDGET, $sim_ac_motif_glwidget_class,
      [Define this to the Xt/Motif OpenGL widget class to use])
 
    LIBS="$LIBS"
    GL_LIBS="$GL_LIBS -l$sim_ac_motif_glwidget_library"
    $1
  fi
fi

fi
])

dnl
dnl XMAKEMOL_GLUT_CHECK([ ACTION-IF-FOUND ])
dnl
dnl Checks if GLUT is found. If it is, $ac_cv_lib_glut is set to "yes".

AC_DEFUN([XMAKEMOL_GLUT_CHECK], [

	AC_ARG_WITH(glut-prefix,
		[  --with-glut-includes=DIR   Prefix for GLUT],[
		glut_prefix="$withval"])

	dnl Check for GLUT includes
	if test ".$glut_prefix" != . ; then
		GLUT_INCLUDES="-I$glut_prefix/include"
	fi
	save_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$GLUT_INCLUDES $CPPFLAGS"
	AC_CHECK_HEADER(GL/glut.h,:,no_glut=yes)
	CPPFLAGS="$save_CPPFLAGS"

	if test ".$glut_prefix" != . ; then
		CON_LIBS="-L$glut_prefix/lib"
	fi
	
	if test ".$no_glut" != . ; then
		ac_cv_lib_glut=no
                GL_LIBS=""
	else
                AC_DEFINE(GL,1)
		ac_cv_lib_glut=yes
		LDFLAGS="$LDFLAGS $CON_LIBS"
                GL_LIBS="$GL_LIBS -lglut"
	fi

])

# lib-prefix.m4 serial 5 (gettext-0.15)
dnl Copyright (C) 2001-2005 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 From Bruno Haible.

dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
dnl require excessive bracketing.
ifdef([AC_HELP_STRING],
[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])

dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
dnl to access previously installed libraries. The basic assumption is that
dnl a user will want packages to use other packages he previously installed
dnl with the same --prefix option.
dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
dnl libraries, but is otherwise very convenient.
AC_DEFUN([AC_LIB_PREFIX],
[
  AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
  AC_REQUIRE([AC_PROG_CC])
  AC_REQUIRE([AC_CANONICAL_HOST])
  AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  dnl By default, look in $includedir and $libdir.
  use_additional=yes
  AC_LIB_WITH_FINAL_PREFIX([
    eval additional_includedir=\"$includedir\"
    eval additional_libdir=\"$libdir\"
  ])
  AC_LIB_ARG_WITH([lib-prefix],
[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
  --without-lib-prefix    don't search for libraries in includedir and libdir],
[
    if test "X$withval" = "Xno"; then
      use_additional=no
    else
      if test "X$withval" = "X"; then
        AC_LIB_WITH_FINAL_PREFIX([
          eval additional_includedir=\"$includedir\"
          eval additional_libdir=\"$libdir\"
        ])
      else
        additional_includedir="$withval/include"
        additional_libdir="$withval/$acl_libdirstem"
      fi
    fi
])
  if test $use_additional = yes; then
    dnl Potentially add $additional_includedir to $CPPFLAGS.
    dnl But don't add it
    dnl   1. if it's the standard /usr/include,
    dnl   2. if it's already present in $CPPFLAGS,
    dnl   3. if it's /usr/local/include and we are using GCC on Linux,
    dnl   4. if it doesn't exist as a directory.
    if test "X$additional_includedir" != "X/usr/include"; then
      haveit=
      for x in $CPPFLAGS; do
        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
        if test "X$x" = "X-I$additional_includedir"; then
          haveit=yes
          break
        fi
      done
      if test -z "$haveit"; then
        if test "X$additional_includedir" = "X/usr/local/include"; then
          if test -n "$GCC"; then
            case $host_os in
              linux* | gnu* | k*bsd*-gnu) haveit=yes;;
            esac
          fi
        fi
        if test -z "$haveit"; then
          if test -d "$additional_includedir"; then
            dnl Really add $additional_includedir to $CPPFLAGS.
            CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
          fi
        fi
      fi
    fi
    dnl Potentially add $additional_libdir to $LDFLAGS.
    dnl But don't add it
    dnl   1. if it's the standard /usr/lib,
    dnl   2. if it's already present in $LDFLAGS,
    dnl   3. if it's /usr/local/lib and we are using GCC on Linux,
    dnl   4. if it doesn't exist as a directory.
    if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
      haveit=
      for x in $LDFLAGS; do
        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
        if test "X$x" = "X-L$additional_libdir"; then
          haveit=yes
          break
        fi
      done
      if test -z "$haveit"; then
        if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
          if test -n "$GCC"; then
            case $host_os in
              linux*) haveit=yes;;
            esac
          fi
        fi
        if test -z "$haveit"; then
          if test -d "$additional_libdir"; then
            dnl Really add $additional_libdir to $LDFLAGS.
            LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
          fi
        fi
      fi
    fi
  fi
])

dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
dnl acl_final_exec_prefix, containing the values to which $prefix and
dnl $exec_prefix will expand at the end of the configure script.
AC_DEFUN([AC_LIB_PREPARE_PREFIX],
[
  dnl Unfortunately, prefix and exec_prefix get only finally determined
  dnl at the end of configure.
  if test "X$prefix" = "XNONE"; then
    acl_final_prefix="$ac_default_prefix"
  else
    acl_final_prefix="$prefix"
  fi
  if test "X$exec_prefix" = "XNONE"; then
    acl_final_exec_prefix='${prefix}'
  else
    acl_final_exec_prefix="$exec_prefix"
  fi
  acl_save_prefix="$prefix"
  prefix="$acl_final_prefix"
  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
  prefix="$acl_save_prefix"
])

dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
dnl variables prefix and exec_prefix bound to the values they will have
dnl at the end of the configure script.
AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
[
  acl_save_prefix="$prefix"
  prefix="$acl_final_prefix"
  acl_save_exec_prefix="$exec_prefix"
  exec_prefix="$acl_final_exec_prefix"
  $1
  exec_prefix="$acl_save_exec_prefix"
  prefix="$acl_save_prefix"
])

dnl AC_LIB_PREPARE_MULTILIB creates a variable acl_libdirstem, containing
dnl the basename of the libdir, either "lib" or "lib64".
AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
[
  dnl There is no formal standard regarding lib and lib64. The current
  dnl practice is that on a system supporting 32-bit and 64-bit instruction
  dnl sets or ABIs, 64-bit libraries go under $prefix/lib64 and 32-bit
  dnl libraries go under $prefix/lib. We determine the compiler's default
  dnl mode by looking at the compiler's library search path. If at least
  dnl of its elements ends in /lib64 or points to a directory whose absolute
  dnl pathname ends in /lib64, we assume a 64-bit ABI. Otherwise we use the
  dnl default, namely "lib".
  acl_libdirstem=lib
  searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
  if test -n "$searchpath"; then
    acl_save_IFS="${IFS= 	}"; IFS=":"
    for searchdir in $searchpath; do
      if test -d "$searchdir"; then
        case "$searchdir" in
          */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
          *) searchdir=`cd "$searchdir" && pwd`
             case "$searchdir" in
               */lib64 ) acl_libdirstem=lib64 ;;
             esac ;;
        esac
      fi
    done
    IFS="$acl_save_IFS"
  fi
])

# lib-link.m4 serial 8 (gettext-0.15)
dnl Copyright (C) 2001-2006 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 From Bruno Haible.

AC_PREREQ(2.50)

dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
dnl the libraries corresponding to explicit and implicit dependencies.
dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and
dnl augments the CPPFLAGS variable.
AC_DEFUN([AC_LIB_LINKFLAGS],
[
  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  AC_REQUIRE([AC_LIB_RPATH])
  define([Name],[translit([$1],[./-], [___])])
  define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
                               [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
  AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
    AC_LIB_LINKFLAGS_BODY([$1], [$2])
    ac_cv_lib[]Name[]_libs="$LIB[]NAME"
    ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME"
    ac_cv_lib[]Name[]_cppflags="$INC[]NAME"
  ])
  LIB[]NAME="$ac_cv_lib[]Name[]_libs"
  LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs"
  INC[]NAME="$ac_cv_lib[]Name[]_cppflags"
  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
  AC_SUBST([LIB]NAME)
  AC_SUBST([LTLIB]NAME)
  dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the
  dnl results of this search when this library appears as a dependency.
  HAVE_LIB[]NAME=yes
  undefine([Name])
  undefine([NAME])
])

dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode)
dnl searches for libname and the libraries corresponding to explicit and
dnl implicit dependencies, together with the specified include files and
dnl the ability to compile and link the specified testcode. If found, it
dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and
dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and
dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs
dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty.
AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
[
  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  AC_REQUIRE([AC_LIB_RPATH])
  define([Name],[translit([$1],[./-], [___])])
  define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
                               [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])

  dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
  dnl accordingly.
  AC_LIB_LINKFLAGS_BODY([$1], [$2])

  dnl Add $INC[]NAME to CPPFLAGS before performing the following checks,
  dnl because if the user has installed lib[]Name and not disabled its use
  dnl via --without-lib[]Name-prefix, he wants to use it.
  ac_save_CPPFLAGS="$CPPFLAGS"
  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)

  AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
    ac_save_LIBS="$LIBS"
    LIBS="$LIBS $LIB[]NAME"
    AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no])
    LIBS="$ac_save_LIBS"
  ])
  if test "$ac_cv_lib[]Name" = yes; then
    HAVE_LIB[]NAME=yes
    AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.])
    AC_MSG_CHECKING([how to link with lib[]$1])
    AC_MSG_RESULT([$LIB[]NAME])
  else
    HAVE_LIB[]NAME=no
    dnl If $LIB[]NAME didn't lead to a usable library, we don't need
    dnl $INC[]NAME either.
    CPPFLAGS="$ac_save_CPPFLAGS"
    LIB[]NAME=
    LTLIB[]NAME=
  fi
  AC_SUBST([HAVE_LIB]NAME)
  AC_SUBST([LIB]NAME)
  AC_SUBST([LTLIB]NAME)
  undefine([Name])
  undefine([NAME])
])

dnl Determine the platform dependent parameters needed to use rpath:
dnl libext, shlibext, hardcode_libdir_flag_spec, hardcode_libdir_separator,
dnl hardcode_direct, hardcode_minus_L.
AC_DEFUN([AC_LIB_RPATH],
[
  dnl Tell automake >= 1.10 to complain if config.rpath is missing.
  m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])])
  AC_REQUIRE([AC_PROG_CC])                dnl we use $CC, $GCC, $LDFLAGS
  AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD, $with_gnu_ld
  AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
  AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
  AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [
    CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
    ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
    . ./conftest.sh
    rm -f ./conftest.sh
    acl_cv_rpath=done
  ])
  wl="$acl_cv_wl"
  libext="$acl_cv_libext"
  shlibext="$acl_cv_shlibext"
  hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
  hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
  hardcode_direct="$acl_cv_hardcode_direct"
  hardcode_minus_L="$acl_cv_hardcode_minus_L"
  dnl Determine whether the user wants rpath handling at all.
  AC_ARG_ENABLE(rpath,
    [  --disable-rpath         do not hardcode runtime library paths],
    :, enable_rpath=yes)
])

dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and
dnl the libraries corresponding to explicit and implicit dependencies.
dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables.
AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
[
  AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
  define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
                               [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
  dnl By default, look in $includedir and $libdir.
  use_additional=yes
  AC_LIB_WITH_FINAL_PREFIX([
    eval additional_includedir=\"$includedir\"
    eval additional_libdir=\"$libdir\"
  ])
  AC_LIB_ARG_WITH([lib$1-prefix],
[  --with-lib$1-prefix[=DIR]  search for lib$1 in DIR/include and DIR/lib
  --without-lib$1-prefix     don't search for lib$1 in includedir and libdir],
[
    if test "X$withval" = "Xno"; then
      use_additional=no
    else
      if test "X$withval" = "X"; then
        AC_LIB_WITH_FINAL_PREFIX([
          eval additional_includedir=\"$includedir\"
          eval additional_libdir=\"$libdir\"
        ])
      else
        additional_includedir="$withval/include"
        additional_libdir="$withval/$acl_libdirstem"
      fi
    fi
])
  dnl Search the library and its dependencies in $additional_libdir and
  dnl $LDFLAGS. Using breadth-first-seach.
  LIB[]NAME=
  LTLIB[]NAME=
  INC[]NAME=
  rpathdirs=
  ltrpathdirs=
  names_already_handled=
  names_next_round='$1 $2'
  while test -n "$names_next_round"; do
    names_this_round="$names_next_round"
    names_next_round=
    for name in $names_this_round; do
      already_handled=
      for n in $names_already_handled; do
        if test "$n" = "$name"; then
          already_handled=yes
          break
        fi
      done
      if test -z "$already_handled"; then
        names_already_handled="$names_already_handled $name"
        dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
        dnl or AC_LIB_HAVE_LINKFLAGS call.
        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
        eval value=\"\$HAVE_LIB$uppername\"
        if test -n "$value"; then
          if test "$value" = yes; then
            eval value=\"\$LIB$uppername\"
            test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value"
            eval value=\"\$LTLIB$uppername\"
            test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value"
          else
            dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined
            dnl that this library doesn't exist. So just drop it.
            :
          fi
        else
          dnl Search the library lib$name in $additional_libdir and $LDFLAGS
          dnl and the already constructed $LIBNAME/$LTLIBNAME.
          found_dir=
          found_la=
          found_so=
          found_a=
          if test $use_additional = yes; then
            if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
              found_dir="$additional_libdir"
              found_so="$additional_libdir/lib$name.$shlibext"
              if test -f "$additional_libdir/lib$name.la"; then
                found_la="$additional_libdir/lib$name.la"
              fi
            else
              if test -f "$additional_libdir/lib$name.$libext"; then
                found_dir="$additional_libdir"
                found_a="$additional_libdir/lib$name.$libext"
                if test -f "$additional_libdir/lib$name.la"; then
                  found_la="$additional_libdir/lib$name.la"
                fi
              fi
            fi
          fi
          if test "X$found_dir" = "X"; then
            for x in $LDFLAGS $LTLIB[]NAME; do
              AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
              case "$x" in
                -L*)
                  dir=`echo "X$x" | sed -e 's/^X-L//'`
                  if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
                    found_dir="$dir"
                    found_so="$dir/lib$name.$shlibext"
                    if test -f "$dir/lib$name.la"; then
                      found_la="$dir/lib$name.la"
                    fi
                  else
                    if test -f "$dir/lib$name.$libext"; then
                      found_dir="$dir"
                      found_a="$dir/lib$name.$libext"
                      if test -f "$dir/lib$name.la"; then
                        found_la="$dir/lib$name.la"
                      fi
                    fi
                  fi
                  ;;
              esac
              if test "X$found_dir" != "X"; then
                break
              fi
            done
          fi
          if test "X$found_dir" != "X"; then
            dnl Found the library.
            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name"
            if test "X$found_so" != "X"; then
              dnl Linking with a shared library. We attempt to hardcode its
              dnl directory into the executable's runpath, unless it's the
              dnl standard /usr/lib.
              if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/$acl_libdirstem"; then
                dnl No hardcoding is needed.
                LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
              else
                dnl Use an explicit option to hardcode DIR into the resulting
                dnl binary.
                dnl Potentially add DIR to ltrpathdirs.
                dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
                haveit=
                for x in $ltrpathdirs; do
                  if test "X$x" = "X$found_dir"; then
                    haveit=yes
                    break
                  fi
                done
                if test -z "$haveit"; then
                  ltrpathdirs="$ltrpathdirs $found_dir"
                fi
                dnl The hardcoding into $LIBNAME is system dependent.
                if test "$hardcode_direct" = yes; then
                  dnl Using DIR/libNAME.so during linking hardcodes DIR into the
                  dnl resulting binary.
                  LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
                else
                  if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
                    dnl Use an explicit option to hardcode DIR into the resulting
                    dnl binary.
                    LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
                    dnl Potentially add DIR to rpathdirs.
                    dnl The rpathdirs will be appended to $LIBNAME at the end.
                    haveit=
                    for x in $rpathdirs; do
                      if test "X$x" = "X$found_dir"; then
                        haveit=yes
                        break
                      fi
                    done
                    if test -z "$haveit"; then
                      rpathdirs="$rpathdirs $found_dir"
                    fi
                  else
                    dnl Rely on "-L$found_dir".
                    dnl But don't add it if it's already contained in the LDFLAGS
                    dnl or the already constructed $LIBNAME
                    haveit=
                    for x in $LDFLAGS $LIB[]NAME; do
                      AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
                      if test "X$x" = "X-L$found_dir"; then
                        haveit=yes
                        break
                      fi
                    done
                    if test -z "$haveit"; then
                      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir"
                    fi
                    if test "$hardcode_minus_L" != no; then
                      dnl FIXME: Not sure whether we should use
                      dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
                      dnl here.
                      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
                    else
                      dnl We cannot use $hardcode_runpath_var and LD_RUN_PATH
                      dnl here, because this doesn't fit in flags passed to the
                      dnl compiler. So give up. No hardcoding. This affects only
                      dnl very old systems.
                      dnl FIXME: Not sure whether we should use
                      dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
                      dnl here.
                      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
                    fi
                  fi
                fi
              fi
            else
              if test "X$found_a" != "X"; then
                dnl Linking with a static library.
                LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a"
              else
                dnl We shouldn't come here, but anyway it's good to have a
                dnl fallback.
                LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name"
              fi
            fi
            dnl Assume the include files are nearby.
            additional_includedir=
            case "$found_dir" in
              */$acl_libdirstem | */$acl_libdirstem/)
                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
                additional_includedir="$basedir/include"
                ;;
            esac
            if test "X$additional_includedir" != "X"; then
              dnl Potentially add $additional_includedir to $INCNAME.
              dnl But don't add it
              dnl   1. if it's the standard /usr/include,
              dnl   2. if it's /usr/local/include and we are using GCC on Linux,
              dnl   3. if it's already present in $CPPFLAGS or the already
              dnl      constructed $INCNAME,
              dnl   4. if it doesn't exist as a directory.
              if test "X$additional_includedir" != "X/usr/include"; then
                haveit=
                if test "X$additional_includedir" = "X/usr/local/include"; then
                  if test -n "$GCC"; then
                    case $host_os in
                      linux* | gnu* | k*bsd*-gnu) haveit=yes;;
                    esac
                  fi
                fi
                if test -z "$haveit"; then
                  for x in $CPPFLAGS $INC[]NAME; do
                    AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
                    if test "X$x" = "X-I$additional_includedir"; then
                      haveit=yes
                      break
                    fi
                  done
                  if test -z "$haveit"; then
                    if test -d "$additional_includedir"; then
                      dnl Really add $additional_includedir to $INCNAME.
                      INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir"
                    fi
                  fi
                fi
              fi
            fi
            dnl Look for dependencies.
            if test -n "$found_la"; then
              dnl Read the .la file. It defines the variables
              dnl dlname, library_names, old_library, dependency_libs, current,
              dnl age, revision, installed, dlopen, dlpreopen, libdir.
              save_libdir="$libdir"
              case "$found_la" in
                */* | *\\*) . "$found_la" ;;
                *) . "./$found_la" ;;
              esac
              libdir="$save_libdir"
              dnl We use only dependency_libs.
              for dep in $dependency_libs; do
                case "$dep" in
                  -L*)
                    additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
                    dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME.
                    dnl But don't add it
                    dnl   1. if it's the standard /usr/lib,
                    dnl   2. if it's /usr/local/lib and we are using GCC on Linux,
                    dnl   3. if it's already present in $LDFLAGS or the already
                    dnl      constructed $LIBNAME,
                    dnl   4. if it doesn't exist as a directory.
                    if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
                      haveit=
                      if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
                        if test -n "$GCC"; then
                          case $host_os in
                            linux* | gnu* | k*bsd*-gnu) haveit=yes;;
                          esac
                        fi
                      fi
                      if test -z "$haveit"; then
                        haveit=
                        for x in $LDFLAGS $LIB[]NAME; do
                          AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
                          if test "X$x" = "X-L$additional_libdir"; then
                            haveit=yes
                            break
                          fi
                        done
                        if test -z "$haveit"; then
                          if test -d "$additional_libdir"; then
                            dnl Really add $additional_libdir to $LIBNAME.
                            LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir"
                          fi
                        fi
                        haveit=
                        for x in $LDFLAGS $LTLIB[]NAME; do
                          AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
                          if test "X$x" = "X-L$additional_libdir"; then
                            haveit=yes
                            break
                          fi
                        done
                        if test -z "$haveit"; then
                          if test -d "$additional_libdir"; then
                            dnl Really add $additional_libdir to $LTLIBNAME.
                            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir"
                          fi
                        fi
                      fi
                    fi
                    ;;
                  -R*)
                    dir=`echo "X$dep" | sed -e 's/^X-R//'`
                    if test "$enable_rpath" != no; then
                      dnl Potentially add DIR to rpathdirs.
                      dnl The rpathdirs will be appended to $LIBNAME at the end.
                      haveit=
                      for x in $rpathdirs; do
                        if test "X$x" = "X$dir"; then
                          haveit=yes
                          break
                        fi
                      done
                      if test -z "$haveit"; then
                        rpathdirs="$rpathdirs $dir"
                      fi
                      dnl Potentially add DIR to ltrpathdirs.
                      dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
                      haveit=
                      for x in $ltrpathdirs; do
                        if test "X$x" = "X$dir"; then
                          haveit=yes
                          break
                        fi
                      done
                      if test -z "$haveit"; then
                        ltrpathdirs="$ltrpathdirs $dir"
                      fi
                    fi
                    ;;
                  -l*)
                    dnl Handle this in the next round.
                    names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
                    ;;
                  *.la)
                    dnl Handle this in the next round. Throw away the .la's
                    dnl directory; it is already contained in a preceding -L
                    dnl option.
                    names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
                    ;;
                  *)
                    dnl Most likely an immediate library name.
                    LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep"
                    LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep"
                    ;;
                esac
              done
            fi
          else
            dnl Didn't find the library; assume it is in the system directories
            dnl known to the linker and runtime loader. (All the system
            dnl directories known to the linker should also be known to the
            dnl runtime loader, otherwise the system is severely misconfigured.)
            LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name"
          fi
        fi
      fi
    done
  done
  if test "X$rpathdirs" != "X"; then
    if test -n "$hardcode_libdir_separator"; then
      dnl Weird platform: only the last -rpath option counts, the user must
      dnl pass all path elements in one option. We can arrange that for a
      dnl single library, but not when more than one $LIBNAMEs are used.
      alldirs=
      for found_dir in $rpathdirs; do
        alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
      done
      dnl Note: hardcode_libdir_flag_spec uses $libdir and $wl.
      acl_save_libdir="$libdir"
      libdir="$alldirs"
      eval flag=\"$hardcode_libdir_flag_spec\"
      libdir="$acl_save_libdir"
      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
    else
      dnl The -rpath options are cumulative.
      for found_dir in $rpathdirs; do
        acl_save_libdir="$libdir"
        libdir="$found_dir"
        eval flag=\"$hardcode_libdir_flag_spec\"
        libdir="$acl_save_libdir"
        LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
      done
    fi
  fi
  if test "X$ltrpathdirs" != "X"; then
    dnl When using libtool, the option that works for both libraries and
    dnl executables is -R. The -R options are cumulative.
    for found_dir in $ltrpathdirs; do
      LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
    done
  fi
])

dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR,
dnl unless already present in VAR.
dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes
dnl contains two or three consecutive elements that belong together.
AC_DEFUN([AC_LIB_APPENDTOVAR],
[
  for element in [$2]; do
    haveit=
    for x in $[$1]; do
      AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
      if test "X$x" = "X$element"; then
        haveit=yes
        break
      fi
    done
    if test -z "$haveit"; then
      [$1]="${[$1]}${[$1]:+ }$element"
    fi
  done
])

dnl For those cases where a variable contains several -L and -l options
dnl referring to unknown libraries and directories, this macro determines the
dnl necessary additional linker options for the runtime path.
dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL])
dnl sets LDADDVAR to linker options needed together with LIBSVALUE.
dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed,
dnl otherwise linking without libtool is assumed.
AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
[
  AC_REQUIRE([AC_LIB_RPATH])
  AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
  $1=
  if test "$enable_rpath" != no; then
    if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
      dnl Use an explicit option to hardcode directories into the resulting
      dnl binary.
      rpathdirs=
      next=
      for opt in $2; do
        if test -n "$next"; then
          dir="$next"
          dnl No need to hardcode the standard /usr/lib.
          if test "X$dir" != "X/usr/$acl_libdirstem"; then
            rpathdirs="$rpathdirs $dir"
          fi
          next=
        else
          case $opt in
            -L) next=yes ;;
            -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'`
                 dnl No need to hardcode the standard /usr/lib.
                 if test "X$dir" != "X/usr/$acl_libdirstem"; then
                   rpathdirs="$rpathdirs $dir"
                 fi
                 next= ;;
            *) next= ;;
          esac
        fi
      done
      if test "X$rpathdirs" != "X"; then
        if test -n ""$3""; then
          dnl libtool is used for linking. Use -R options.
          for dir in $rpathdirs; do
            $1="${$1}${$1:+ }-R$dir"
          done
        else
          dnl The linker is used for linking directly.
          if test -n "$hardcode_libdir_separator"; then
            dnl Weird platform: only the last -rpath option counts, the user
            dnl must pass all path elements in one option.
            alldirs=
            for dir in $rpathdirs; do
              alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$dir"
            done
            acl_save_libdir="$libdir"
            libdir="$alldirs"
            eval flag=\"$hardcode_libdir_flag_spec\"
            libdir="$acl_save_libdir"
            $1="$flag"
          else
            dnl The -rpath options are cumulative.
            for dir in $rpathdirs; do
              acl_save_libdir="$libdir"
              libdir="$dir"
              eval flag=\"$hardcode_libdir_flag_spec\"
              libdir="$acl_save_libdir"
              $1="${$1}${$1:+ }$flag"
            done
          fi
        fi
      fi
    fi
  fi
  AC_SUBST([$1])
])

# lib-ld.m4 serial 3 (gettext-0.13)
dnl Copyright (C) 1996-2003 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 Subroutines of libtool.m4,
dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
dnl with libtool.m4.

dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
AC_DEFUN([AC_LIB_PROG_LD_GNU],
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
case `$LD -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
  acl_cv_prog_gnu_ld=yes ;;
*)
  acl_cv_prog_gnu_ld=no ;;
esac])
with_gnu_ld=$acl_cv_prog_gnu_ld
])

dnl From libtool-1.4. Sets the variable LD.
AC_DEFUN([AC_LIB_PROG_LD],
[AC_ARG_WITH(gnu-ld,
[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
# Prepare PATH_SEPARATOR.
# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi
ac_prog=ld
if test "$GCC" = yes; then
  # Check if gcc -print-prog-name=ld gives a path.
  AC_MSG_CHECKING([for ld used by GCC])
  case $host in
  *-*-mingw*)
    # gcc leaves a trailing carriage return which upsets mingw
    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
  *)
    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
  esac
  case $ac_prog in
    # Accept absolute paths.
    [[\\/]* | [A-Za-z]:[\\/]*)]
      [re_direlt='/[^/][^/]*/\.\./']
      # 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 "$with_gnu_ld" = yes; then
  AC_MSG_CHECKING([for GNU ld])
else
  AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(acl_cv_path_LD,
[if test -z "$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$ac_exeext"; then
      acl_cv_path_LD="$ac_dir/$ac_prog"
      # Check to see if the program is GNU ld.  I'd rather use --version,
      # but apparently some GNU ld's only accept -v.
      # Break only if it was the GNU/non-GNU ld that we prefer.
      case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
      *GNU* | *'with BFD'*)
	test "$with_gnu_ld" != no && break ;;
      *)
	test "$with_gnu_ld" != yes && break ;;
      esac
    fi
  done
  IFS="$ac_save_ifs"
else
  acl_cv_path_LD="$LD" # Let the user override the test with a path.
fi])
LD="$acl_cv_path_LD"
if test -n "$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_LIB_PROG_LD_GNU
])

# 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([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
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 $ac_aux_dir && pwd`
AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version}, $missing_dir)
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version}, $missing_dir)
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
AC_REQUIRE([AC_PROG_MAKE_SET])])

# Copyright 2002  Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA

# AM_AUTOMAKE_VERSION(VERSION)
# ----------------------------
# Automake X.Y traces this macro to ensure aclocal.m4 has been
# generated from the m4 files accompanying Automake X.Y.
AC_DEFUN([AM_AUTOMAKE_VERSION],[am__api_version="1.4"])

# AM_SET_CURRENT_AUTOMAKE_VERSION
# -------------------------------
# Call AM_AUTOMAKE_VERSION so it can be traced.
# This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
	 [AM_AUTOMAKE_VERSION([1.4-p6])])

#
# 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)])

# 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([,]))])