Thanks, I installed the attached slightly-different patch.
>From 00b5abcff31d86a9831b586421bfe89d36dbeda9 Mon Sep 17 00:00:00 2001
From: Paul Eggert
Date: Sat, 7 Feb 2015 15:09:00 -0800
Subject: [PATCH] crypto/gc: fix a -Wswitch warning
Reported by Bruce Korb in:
http://lists.gnu.org/archive/htm
gc-gnulib.c: In function 'gc_hash_open':
gc-gnulib.c:669:5: warning: case value '0' not in enumerated type
'Gc_hash_mode' [-Wswitch]
case 0:
^
diff --git a/lib/gc-gnulib.c b/lib/gc-gnulib.c
index a1276c9..ee60f85 100644
--- a/lib/gc-gnulib.c
+++ b/lib
