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Date: Sat, 24 Jun 2017 11:54:25 +0200
From: Jens Gustedt <>
Subject: [PATCH] missing volatile in __get_locale

All int that are used with atomic operations, should be volatile.

The calls to __lock & Co hid this bug because they implicitly add the
qualifier to the target. But intelligent lto could have bitten us one
 src/locale/locale_map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/locale/locale_map.c b/src/locale/locale_map.c
index c3e59174..188fcf39 100644
--- a/src/locale/locale_map.c
+++ b/src/locale/locale_map.c
@@ -26,7 +26,7 @@ static const char envvars[][12] = {
 const struct __locale_map *__get_locale(int cat, const char *val)
-	static int lock[2];
+	static volatile int lock[2];
 	static void *volatile loc_head;
 	const struct __locale_map *p;
 	struct __locale_map *new = 0;

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