---
cpukit/aclocal/check-atomic.m4 | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/cpukit/aclocal/check-atomic.m4 b/cpukit/aclocal/check-atomic.m4
index 00149f8..69cca50 100644
--- a/cpukit/aclocal/check-atomic.m4
+++ b/cpukit/aclocal/check-atomic.m4
@@ -7,9 +7,11 @@ AC_CACHE_CHECK([whether CPU supports atomic operations],
[rtems_cv_ATOMIC],[
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#include <stdatomic.h>]],
- [[atomic_uint_fast32_t t; atomic_init(&t, 0);
+ [[atomic_uint_fast32_t t; uint_fast32_t m = 1;
+ atomic_init(&t, 0);
atomic_store( &t, 1 );
atomic_exchange( &t, 2 );
+ atomic_compare_exchange_strong( &t, &m, 2);
atomic_fetch_add( &t, 3 );]])],
[rtems_cv_ATOMIC="yes"],
[rtems_cv_ATOMIC="no"])
--
1.7.9.5
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