+AC_PATH_PROG([SED], [sed], [no])
+if test "$SED" = "no"; then
+ AC_MSG_ERROR([The program "sed" is not avaiable. This program is required to build Openbox.])
+fi
+
+PKG_CHECK_MODULES([GLIB], [glib-2.0])
+AC_SUBST(GLIB_CFLAGS)
+AC_SUBST(GLIB_LIBS)
+
+AC_ARG_ENABLE(pango,
+ AC_HELP_STRING([--enable-pango],
+ [enable the pango library for better display of international fonts. (default=no)]),
+ [enable_pango=yes], [enable_pango=no])
+
+if test "$enable_pango" = yes; then
+PKG_CHECK_MODULES([PANGO], [pango pangoxft])
+AC_SUBST(PANGO_CFLAGS)
+AC_SUBST(PANGO_LIBS)
+DEFS="$DEFS -DUSE_PANGO"
+fi
+
+PKG_CHECK_MODULES(XFT, [xft])