-[AC_REQUIRE([DX_AUTOMAKE_COMPAT])AC_REQUIRE([DX_EXPORTED_SH])
-AC_SUBST([GLSYM_PREFIX], [$1])
-])
+[AC_REQUIRE([DX_AUTOMAKE_COMPAT])AC_REQUIRE([DX_EXPORTED_SH])dnl
+AC_SUBST([GLSYM_PREFIX], [$1])dnl
+AC_SUBST([gnulib_symfiles], ['$(gnulib_all_symfiles)'])])