dnl ===========================================================================

dnl NAUTILUS_VERSION_CANON(version)
dnl                     1

AC_DEFUN(NAUTILUS_VERSION_CANON, [`

	dnl Assumes that there are no more than 999 revisions at a level,
	dnl no more than three levels of revision.
	dnl
	dnl Any more than that, and test starts messing up the numeric
	dnl comparisons because its integers overflow, and there's no
	dnl way to do string comparisons in the shell.  Grr.
	dnl
	dnl Must come up with some way to fix this.

	echo "$1" |
	tr . '\012' |
	sed -e 's/^/000/' -e 's/^.*\(...\)/\1/' |
	tr -d '\012' |
	sed 's/$/000000000/
	     s/^\(.........\).*/\1/'
`])

dnl NAUTILUS_VERSION_INSIST(package, get-version-cmd, operator, want-version-var)
dnl                      1        2                3         4

AC_DEFUN(NAUTILUS_VERSION_INSIST, [
	ez_want_version=[$]$4

	case "$3" in
		">")	ez_operator=-gt ;;
		">=")	ez_operator=-ge ;;
		"<")	ez_operator=-lt ;;
		"<=")	ez_operator=-le ;;
		"=")	ez_operator=-eq ;;
		"!=")	ez_operator=-ne ;;
		*)	AC_ERROR(Unknown operator $3 in configure script) ;;
	esac

	AC_MSG_CHECKING(for $1 $3 [$ez_want_version])

	if ez_installed_version="`$2`"
	then
		AC_MSG_RESULT([$ez_installed_version])
	else
		AC_ERROR($2 failed)
	fi

	if test "NAUTILUS_VERSION_CANON([$ez_installed_version])" "$ez_operator" \
		"NAUTILUS_VERSION_CANON([$ez_want_version])"
	then
		:
		AC_SUBST($4)
	else
		AC_ERROR($1 version [$ez_want_version] is required.)
	fi
])

dnl NAUTILUS_PATH_FREETYPE2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for FreeType2, and define FREETYPE2_CFLAGS and FREETYPE2_LIBS
dnl
dnl Shamelessly cut-n-pasted from AM_PATH_LIBART
dnl
AC_DEFUN(NAUTILUS_PATH_FREETYPE2,
[dnl 
dnl Get the cflags and libraries from the freetype-config script
dnl
AC_ARG_WITH(freetype2-prefix,[  --with-freetype2-prefix=PFX   Prefix where FREETYPE2 is installed (optional)],
            freetype2_prefix="$withval", freetype2_prefix="")
AC_ARG_WITH(freetype2-exec-prefix,[  --with-freetype2-exec-prefix=PFX Exec prefix where FREETYPE2 is installed (optional)],
            freetype2_exec_prefix="$withval", freetype2_exec_prefix="")
AC_ARG_ENABLE(freetype2test, [  --disable-freetype2test       Do not try to compile and run a test FREETYPE2 program],
		    , enable_freetype2test=yes)

  if test x$freetype2_exec_prefix != x ; then
     freetype2_args="$freetype2_args --exec-prefix=$freetype2_exec_prefix"
     if test x${FREETYPE2_CONFIG+set} != xset ; then
        FREETYPE2_CONFIG=$freetype2_exec_prefix/bin/freetype-config
     fi
  fi
  if test x$freetype2_prefix != x ; then
     freetype2_args="$freetype2_args --prefix=$freetype2_prefix"
     if test x${FREETYPE2_CONFIG+set} != xset ; then
        FREETYPE2_CONFIG=$freetype2_prefix/bin/freetype-config
     fi
  fi

  AC_PATH_PROG(FREETYPE2_CONFIG, freetype-config, no)
  min_freetype2_version=ifelse([$1], ,0.2.5,$1)
  AC_MSG_CHECKING(for FREETYPE2 - version >= $min_freetype2_version)
  no_freetype2=""
  if test "$FREETYPE2_CONFIG" = "no" ; then
    no_freetype2=yes
  else
    FREETYPE2_CFLAGS=`$FREETYPE2_CONFIG $freetype2conf_args --cflags`
    FREETYPE2_LIBS=`$FREETYPE2_CONFIG $freetype2conf_args --libs`

    freetype2_major_version=`$FREETYPE2_CONFIG $freetype2_args --version | \
	sed 's/\([[0-9]]*\)[[:.]]\([[0-9]]*\)[[:.]]\([[0-9]]*\)/\1/'`
    freetype2_minor_version=`$FREETYPE2_CONFIG $freetype2_args --version | \
	sed 's/\([[0-9]]*\)[[:.]]\([[0-9]]*\)[[:.]]\([[0-9]]*\)/\2/'`
    freetype2_micro_version=`$FREETYPE2_CONFIG $freetype2_args --version | \
	sed 's/\([[0-9]]*\)[[:.]]\([[0-9]]*\)[[:.]]\([[0-9]]*\)/\3/'`

    if test "x$enable_freetype2test" = "xyes" ; then
      ac_save_CFLAGS="$CFLAGS"
      ac_save_LIBS="$LIBS"
      CFLAGS="$CFLAGS $FREETYPE2_CFLAGS"
      LIBS="$LIBS $FREETYPE2_LIBS"
dnl
dnl Now check if the installed FREETYPE2 is sufficiently new. (Also sanity
dnl checks the results of freetype-config to some extent
dnl
      rm -f conf.freetype2test
      AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freetype/freetype.h>

char*
my_strdup (char *str)
{
  char *new_str;
  
  if (str)
    {
      new_str = malloc ((strlen (str) + 1) * sizeof(char));
      strcpy (new_str, str);
    }
  else
    new_str = NULL;
  
  return new_str;
}

int main ()
{
  int major, minor, micro;
  char *tmp_version;

  system ("touch conf.freetype2test");

  /* HP/UX 9 (%@#!) writes to sscanf strings */
  tmp_version = my_strdup("$min_freetype2_version");
  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
     printf("%s, bad version string\n", "$min_freetype2_version");
     exit(1);
   }

   if (($freetype2_major_version > major) ||
      (($freetype2_major_version == major) && ($freetype2_minor_version > minor)) ||
      (($freetype2_major_version == major) && ($freetype2_minor_version == minor) && ($freetype2_micro_version >= micro)))
    {
      return 0;
    }
  else
    {
      printf("\n");
      printf("*** \n");
      printf("*** 'freetype-config --version' returned %d.%d.%d, but the minimum version\n", $freetype2_major_version, $freetype2_minor_version, $freetype2_micro_version);
      printf("*** of FREETYPE2 required is %d.%d.%d. If freetype-config is correct, then it is\n", major, minor, micro);
      printf("*** best to upgrade to the required version.\n");
      printf("*** If freetype-config was wrong, set the environment variable FREETYPE2_CONFIG\n");
      printf("*** to point to the correct copy of freetype-config, and remove the file\n");
      printf("*** config.cache before re-running configure\n");
      printf("*** \n");

      return 1;
    }
}

],, no_freetype2=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
       CFLAGS="$ac_save_CFLAGS"
       LIBS="$ac_save_LIBS"
     fi
  fi
  if test "x$no_freetype2" = x ; then
     AC_MSG_RESULT(yes)
     ifelse([$2], , :, [$2])     
  else
     AC_MSG_RESULT(no)
     if test "$FREETYPE2_CONFIG" = "no" ; then
       echo "*** The freetype-config script installed by FREETYPE2 could not be found"
       echo "*** If FREETYPE2 was installed in PREFIX, make sure PREFIX/bin is in"
       echo "*** your path, or set the FREETYPE2_CONFIG environment variable to the"
       echo "*** full path to freetype-config."
     else
       if test -f conf.freetype2test ; then
        :
       else
          echo "*** Could not run FREETYPE2 test program, checking why..."
          CFLAGS="$CFLAGS $FREETYPE2_CFLAGS"
          LIBS="$LIBS $FREETYPE2_LIBS"
          AC_TRY_LINK([
#include <stdio.h>
#include <freetype/freetype.h>
],      [ return 0; ],
        [ echo "*** The test program compiled, but did not run. This usually means"
          echo "*** that the run-time linker is not finding FREETYPE2 or finding the wrong"
          echo "*** version of FREETYPE2. If it is not finding FREETYPE2, you'll need to set your"
          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
          echo "*** is required on your system"
	  echo "***"
          echo "*** If you have an old version installed, it is best to remove it, although"
          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
        [ echo "*** The test program failed to compile or link. See the file config.log for the"
          echo "*** exact error that occured. This usually means FREETYPE2 was incorrectly installed"
          echo "*** or that you have moved FREETYPE2 since it was installed. In the latter case, you"
          echo "*** may want to edit the freetype-config script: $FREETYPE2_CONFIG" ])
          CFLAGS="$ac_save_CFLAGS"
          LIBS="$ac_save_LIBS"
       fi
     fi
     FREETYPE2_CFLAGS=""
     FREETYPE2_LIBS=""
     ifelse([$3], , :, [$3])
  fi
  AC_SUBST(FREETYPE2_CFLAGS)
  AC_SUBST(FREETYPE2_LIBS)
  rm -f conf.freetype2test
])