[PATCH 2/3] Have different definitions of __pthread_tsd_main agree in size

[Jens Gustedt <Jens.Gustedt@inria.fr>]

When switching optimization to higher levels (-O3) and enable link time
optimization (-flto) gcc finds two instances of the __pthread_tsd_main
variable that are declared with different sizes.

The real size that is needed is known in both source files. Just use
equivalent definitions.

1	1	src/thread/pthread_self.c

diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c
index 23dbaa5..32a6e5d 100644
--- a/src/thread/pthread_self.c
+++ b/src/thread/pthread_self.c
@@ -3,7 +3,7 @@
 static struct pthread *main_thread = &(struct pthread){0};
 
 /* pthread_key_create.c overrides this */
-static const void *dummy[1] = { 0 };
+static const void *dummy[PTHREAD_KEYS_MAX] = { 0 };
 weak_alias(dummy, __pthread_tsd_main);
 
 static int init_main_thread()
-- 
1.7.9.5