dnl CF_X_FONTENC version: 7 updated: 2011/10/28 18:48:08
dnl ------------
dnl
dnl First check for the appropriate config program, since the developers for
dnl these libraries change their configuration (and config program) more or
dnl less randomly.  If we cannot find the config program, do not bother trying
dnl to guess the latest variation of include/lib directories.
dnl
dnl If the package-config program is not found, rely on the configure script's
dnl options to provide the cflags/libs options:
dnl	--with-fontenc-cflags
dnl	--with-fontenc-libs
AC_DEFUN([CF_X_FONTENC],
[
AC_REQUIRE([CF_WITH_ZLIB])
AC_REQUIRE([CF_PKG_CONFIG])

cf_extra_fontenc_incs=
cf_extra_fontenc_libs="-lfontenc -lX11"
FONTENC_CONFIG=
FONTENC_PARAMS=

if test "$PKG_CONFIG" != none;  then
    if "$PKG_CONFIG" --exists fontenc; then
        FONTENC_CONFIG=$PKG_CONFIG
        FONTENC_PARAMS="fontenc x11"
        cf_extra_fontenc_libs=
    fi
fi

AC_MSG_CHECKING(for optional font-encoding cflags)
AC_ARG_WITH(fontenc-cflags,
	[  --with-fontenc-cflags   -D/-I options for compiling with font encoding library],
    [cf_x_fontenc_incs="$withval"],[cf_x_fontenc_incs=auto])
test "$cf_x_fontenc_incs" = yes && cf_x_fontenc_incs=auto
AC_MSG_RESULT($cf_x_fontenc_incs)

AC_MSG_CHECKING(for optional font-encoding libraries)
AC_ARG_WITH(fontenc-libs,
	[  --with-fontenc-libs     -L/-l options to link font encoding library],
    [cf_x_fontenc_libs="$withval"],[cf_x_fontenc_libs=auto])
test "$cf_x_fontenc_libs" = yes && cf_x_fontenc_libs=auto
AC_MSG_RESULT($cf_x_fontenc_libs)

if test "$cf_x_fontenc_incs" = auto ; then
AC_CACHE_CHECK(for X font-encoding headers,cf_cv_x_fontenc_incs,[
    if test -n "$FONTENC_CONFIG" ; then
        cf_cv_x_fontenc_incs="`$FONTENC_CONFIG $FONTENC_PARAMS --cflags 2>/dev/null`"
    else
        cf_cv_x_fontenc_incs=$cf_extra_fontenc_incs
    fi
])
else
	cf_cv_x_fontenc_incs=$cf_x_fontenc_incs
fi

if test "$cf_x_fontenc_libs" = auto ; then
AC_CACHE_CHECK(for X font-encoding libraries,cf_cv_x_fontenc_libs,[
    if test -n "$FONTENC_CONFIG" ; then
        cf_cv_x_fontenc_libs="`$FONTENC_CONFIG $FONTENC_PARAMS --libs 2>/dev/null`"
    else
        cf_cv_x_fontenc_libs=$cf_extra_fontenc_libs
    fi
])
else
	cf_cv_x_fontenc_libs=$cf_x_fontenc_libs
fi

cf_save_LIBS="$LIBS"
cf_save_INCS="$CPPFLAGS"

LIBS="$cf_cv_x_fontenc_libs $LIBS $X_LIBS"
CPPFLAGS="$CPPFLAGS $X_CFLAGS $cf_cv_x_fontenc_incs"

AC_MSG_CHECKING(if we can link with font encoding library)
AC_TRY_LINK([
$ac_includes_default
#include <X11/Xlib.h>
#include <X11/fonts/fontenc.h>],[
	FontMapPtr mapping = FontEncMapFind(0, FONT_ENCODING_UNICODE, -1, -1, NULL);
	],[cf_have_fontenc_libs=yes],[cf_have_fontenc_libs=no])
AC_MSG_RESULT($cf_have_fontenc_libs)

LIBS="$cf_save_LIBS"
CPPFLAGS="$cf_save_INCS"

if test $cf_have_fontenc_libs = yes ; then
	LIBS="$cf_cv_x_fontenc_libs $LIBS $X_LIBS"
	CF_ADD_CFLAGS($cf_cv_x_fontenc_incs)
else
	AC_MSG_WARN(No libraries found for font-encoding)
fi
])
