fontconfig: add an INSTALL script that runs fc-cache.

--HG--
extra : convert_revision : 2acea147fb7e83af81310bbdefbeee0627957892

templates/fontconfig/INSTALL

@@ -0,0 +1,12 @@
+#
+# This script builds fontconfig's fonts cache.
+#
+case "$2" in
+pre)
+	;;
+post)
+	echo "Building fonts cache... "
+	fc-cache -f >/dev/null
+	echo "done."
+	;;
+esac