-AM_INIT_AUTOMAKE(LinuxTraceToolkit,0.9.7-29052003)
-AC_CONFIG_HEADER([config.h])
-AC_PROG_LIBTOOL
+#AC_WITH_LTDL # not needed ?
+AM_INIT_AUTOMAKE(LinuxTraceToolkit,0.9.7-06082003)
+AM_CONFIG_HEADER([config.h])
+AM_PROG_LIBTOOL
+
+AM_PATH_GLIB_2_0(2.0.0, ,AC_MSG_ERROR([glib is required in order to compile LinuxTraceToolkit - download it from ftp://ftp.gtk.org/pub/gtk]) , gmodule)
+
+AM_PATH_GTK_2_0(2.0.0, ,AC_MSG_ERROR([gtk is required in order to compile GUI - download it from ftp://ftp.gtk.org/pub/gtk]) , gmodule)