+### For font-backend
+if test "${USE_FONT_BACKEND}" = "yes"; then
+
+AC_DEFINE(USE_FONT_BACKEND, 1,
+ [Define to 1 if we should use font-backend.])
+
+### Use -lXft if available, unless `--with-freetype=no' nor `--with-xft=no'.
+HAVE_XFT=maybe
+if test "${HAVE_X11}" = "yes"; then
+ if test "x${with_freetype}" = "xno"; then
+ with_xft="no";
+ fi
+ if test "x${with_xft}" != "xno"; then
+
+ dnl Check if --with-pkg-config-prog has been given.
+ if test "X${with_pkg_config_prog}" != X; then
+ PKG_CONFIG="${with_pkg_config_prog}"
+ fi
+
+ PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
+ if test "$HAVE_XFT" != no; then
+ OLD_CPPFLAGS="$CPPFLAGS"
+ OLD_CFLAGS="$CFLAGS"
+ OLD_LIBS="$LIBS"
+ CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
+ CFLAGS="$CFLAGS $XFT_CFLAGS"
+ LIBS="$XFT_LIBS $LIBS"
+ AC_CHECK_HEADER(X11/Xft/Xft.h,
+ AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
+
+ if test "${HAVE_XFT}" = "yes"; then
+ AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
+ AC_SUBST(XFT_LIBS)
+ C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
+ else
+ CFLAGS="$OLD_CPPFLAGS"
+ CFLAGS="$OLD_CFLAGS"
+ LIBS="$OLD_LIBS"
+ fi
+ fi
+ fi
+fi
+
+HAVE_FREETYPE=no
+### Use -lfreetype if available, unless `--with-freetype=no'.
+if test "${HAVE_XFT}" = "yes"; then
+ dnl As we use Xft, we anyway use freetype.
+ dnl In this case, there's no need of additional CFLAGS and LIBS.
+ HAVE_FREETYPE=yes
+elif test "x${with_freetype}" != "xno"; then
+ dnl Check if --with-pkg-config-prog has been given.
+ if test "X${with_pkg_config_prog}" != X; then
+ PKG_CONFIG="${with_pkg_config_prog}"
+ fi
+
+ PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes, HAVE_FREETYPE=no)
+ if test "${HAVE_FREETYPE}" = "yes"; then
+ PKG_CHECK_MODULES(FONTCONFIG, fontconfig, HAVE_FC=yes, HAVE_FC=no)
+ if test "${HAVE_FC}" = "no"; then
+ dnl Witout fontconfig, we can't use freetype at the moment.
+ HAVE_FREETYPE=no
+ fi
+ fi
+fi
+if test "${HAVE_FREETYPE}" = "yes"; then
+ AC_DEFINE(HAVE_FREETYPE, 1,
+ [Define to 1 if you have freetype and fontconfig libraries.])
+ AC_CHECK_PROG(HAVE_LIBOTF, libotf-config, yes, no)
+ if test "${HAVE_LIBOTF}" = "yes"; then
+ AC_CHECK_LIB(otf, OTF_get_features, , HAVE_LIBOTF=no)
+ if test "${HAVE_LIBOTF}" = "yes"; then
+ AC_DEFINE(HAVE_LIBOTF, 1,
+ [Define to 1 if you have libotf library.])
+ LIBOTF_CFLAGS=`libotf-config --cflags`
+ LIBOTF_LIBS=`libotf-config --libs`
+ fi
+ fi
+fi
+AC_SUBST(FREETYPE_CFLAGS)
+AC_SUBST(FREETYPE_LIBS)
+AC_SUBST(FONTCONFIG_CFLAGS)
+AC_SUBST(FONTCONFIG_LIBS)
+AC_SUBST(LIBOTF_CFLAGS)
+AC_SUBST(LIBOTF_LIBS)
+
+fi
+