-PKG_CHECK_MODULES(GTHREAD, gthread-2.0, dummy=yes,
+AC_ARG_ENABLE(threads, AC_HELP_STRING([--enable-threads],
+ [enable threading support]), [
+ AC_DEFINE(NEED_THREADS, 1, [Define if threading support is required])
+
+ PKG_CHECK_MODULES(GTHREAD, gthread-2.0, dummy=yes,