AC_SUBST(lttlibdir)
-DEFAULT_INCLUDES="-I\$(top_srcdir)/include -I\$(includedir)/glib-2.0"
+DEFAULT_INCLUDES="-I\$(top_srcdir)/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include"
AC_SUBST(DEFAULT_INCLUDES)
lttvincludedir="${includedir}/lttv"