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-rw-r--r--rts/SMPClosureOps.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/rts/SMPClosureOps.h b/rts/SMPClosureOps.h
index 4ade2d018a..4ea1c55976 100644
--- a/rts/SMPClosureOps.h
+++ b/rts/SMPClosureOps.h
@@ -10,7 +10,7 @@
#include "BeginPrivate.h"
-#ifdef CMINUSMINUS
+#if defined(CMINUSMINUS)
/* Lock closure, equivalent to ccall lockClosure but the condition is inlined.
* Arguments are swapped for uniformity with unlockClosure. */