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-rw-r--r--c/src/tests/psxtests/psxhdrs/mutex05.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/c/src/tests/psxtests/psxhdrs/mutex05.c b/c/src/tests/psxtests/psxhdrs/mutex05.c
index afb1111a19..9a02accc97 100644
--- a/c/src/tests/psxtests/psxhdrs/mutex05.c
+++ b/c/src/tests/psxtests/psxhdrs/mutex05.c
@@ -15,6 +15,10 @@
#include <pthread.h>
+#ifndef _POSIX_THREADS
+#error "rtems is supposed to have pthread_mutex_lock"
+#endif
+
void test( void )
{
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;