+_TUXBOX_APPS_LIB_PKGCONFIG_OPTIONAL(GSTREAMER,gstreamer,HAVE_GSTREAMER)
+_TUXBOX_APPS_LIB_PKGCONFIG_OPTIONAL(GSTREAMERPBUTILS,gstreamer-pbutils,HAVE_GSTSTREAMERPBUTILS)
+AC_CHECK_LIB(jpeg, jpeg_set_defaults, HAVE_JPEG="yes", HAVE_JPEG="no")
+JPEG_LIBS="-ljpeg"
+AC_SUBST(JPEG_LIBS)
+
+AC_CHECK_LIB(ungif, DGifOpenFileName, HAVE_LIBUNGIF="yes", HAVE_LIBUNGIF="no")
+LIBUNGIF_LIBS="-lungif"
+AC_SUBST(LIBUNGIF_LIBS)
+
+TUXBOX_APPS_LIB_PKGCONFIG(XML2,libxml-2.0)
+
+# ok, we are in trouble: XMLCCWRAP only defines C++ symbols. So let's just check if linking works,
+# and assume everything will be ok. Then just check for the "exit" symbol, which should be always there.
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+TUXBOX_APPS_LIB_SYMBOL(XMLCCWRAP, xmlccwrap, exit)
+AC_LANG_RESTORE