[PATCH 08/10] tst-minsigstksz-1.c: Return EXIT_UNSUPPORTED for GCC 4.9 or older

[H.J. Lu]

Since ATOMIC_INT_LOCK_FREE in GCC 4.9 is defined as

 #define ATOMIC_INT_LOCK_FREE                    \
  __atomic_type_lock_free (atomic_int)

GCC 4.9 fails to compile tst-minsigstksz-1.c:

tst-minsigstksz-1.c:45:6: error: missing binary operator before token "("
 # if ATOMIC_INT_LOCK_FREE != 2
      ^

Change tst-minsigstksz-1.c to define TEST_ATOMIC_OPS to 0 for GCC 4.9 or
older.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
 signal/tst-minsigstksz-1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/signal/tst-minsigstksz-1.c b/signal/tst-minsigstksz-1.c
index edd165a1f3..0e068e37f8 100644
--- a/signal/tst-minsigstksz-1.c
+++ b/signal/tst-minsigstksz-1.c
@@ -38,7 +38,7 @@
 /* We do not try to test atomic operations exhaustively, only a simple
    atomic counter increment.  This is only safe if atomic_[u]int is
    unconditionally lock-free.  */
-#ifdef __STDC_NO_ATOMICS__
+#if defined __STDC_NO_ATOMICS__ || !__GNUC_PREREQ (5, 0)
 # define TEST_ATOMIC_OPS 0
 #else
 # include <stdatomic.h>
-- 
2.47.1