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-rw-r--r--cpukit/posix/include/semaphore.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/posix/include/semaphore.h b/cpukit/posix/include/semaphore.h
index d792489334..b41a729eb4 100644
--- a/cpukit/posix/include/semaphore.h
+++ b/cpukit/posix/include/semaphore.h
@@ -13,7 +13,7 @@
extern "C" {
#endif
-#include <sys/features.h>
+#include <unistd.h>
#if defined(_POSIX_SEMAPHORES)