--- /dev/null
+# gc-sha512.m4 serial 1
+dnl Copyright (C) 2005, 2007, 2009-2014 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_GC_SHA512],
+[
+ AC_REQUIRE([gl_GC])
+])