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-rw-r--r--includes/rts/storage/ClosureMacros.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/includes/rts/storage/ClosureMacros.h b/includes/rts/storage/ClosureMacros.h
index 90198f20e8..c8c270fdfe 100644
--- a/includes/rts/storage/ClosureMacros.h
+++ b/includes/rts/storage/ClosureMacros.h
@@ -520,8 +520,17 @@ INLINE_HEADER StgWord8 *mutArrPtrsCard (StgMutArrPtrs *a, W_ n)
-------------------------------------------------------------------------- */
-#define ZERO_SLOP_FOR_LDV_PROF (defined(PROFILING))
-#define ZERO_SLOP_FOR_SANITY_CHECK (defined(DEBUG) && !defined(THREADED_RTS))
+#if defined(PROFILING)
+#define ZERO_SLOP_FOR_LDV_PROF 1
+#else
+#define ZERO_SLOP_FOR_LDV_PROF 0
+#endif
+
+#if defined(DEBUG) && !defined(THREADED_RTS)
+#define ZERO_SLOP_FOR_SANITY_CHECK 1
+#else
+#define ZERO_SLOP_FOR_SANITY_CHECK 0
+#endif
#if ZERO_SLOP_FOR_LDV_PROF || ZERO_SLOP_FOR_SANITY_CHECK
#define OVERWRITING_CLOSURE(c) overwritingClosure(c)