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-rw-r--r--linuxthreads/spinlock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/linuxthreads/spinlock.h b/linuxthreads/spinlock.h
index f88e8f3b0e..b3d02314bf 100644
--- a/linuxthreads/spinlock.h
+++ b/linuxthreads/spinlock.h
@@ -49,7 +49,7 @@ static inline int compare_and_swap(long * ptr, long oldval, long newval,
 #elif defined(HAS_COMPARE_AND_SWAP)
 
 #ifdef IMPLEMENT_TAS_WITH_CAS
-#define testandset(p) !__compare_and_swap(p, 0, 1)
+#define testandset(p) !__compare_and_swap((long int *) p, 0, 1)
 #endif
 
 #ifdef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS