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-rw-r--r--winsup/cygwin/include/semaphore.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/winsup/cygwin/include/semaphore.h b/winsup/cygwin/include/semaphore.h
index 6dbfa09ac..500b8f7a4 100644
--- a/winsup/cygwin/include/semaphore.h
+++ b/winsup/cygwin/include/semaphore.h
@@ -21,7 +21,7 @@ extern "C"
#endif
#ifndef __INSIDE_CYGWIN__
- typedef void *sem_t;
+ typedef struct __sem_t {char __dummy;} *sem_t;
#endif
#define SEM_FAILED 0