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authordaniel@phasevelocity.org <unknown>2008-08-22 06:21:36 +0000
committerdaniel@phasevelocity.org <unknown>2008-08-22 06:21:36 +0000
commit26133989f1362077cc1deac80880279a8a306a39 (patch)
treec2b960014fe1e64990f58f85e35057428d199f2c /rts/sm/GC.h
parentc4ec8f2a77894af1c6160c4e8ad5625ab62f0bea (diff)
downloadhaskell-26133989f1362077cc1deac80880279a8a306a39.tar.gz
Add extern flag to avoid multiple symbol errors on Mac os X
Diffstat (limited to 'rts/sm/GC.h')
-rw-r--r--rts/sm/GC.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/rts/sm/GC.h b/rts/sm/GC.h
index 913df24e2e..5e2e3a5749 100644
--- a/rts/sm/GC.h
+++ b/rts/sm/GC.h
@@ -39,7 +39,7 @@ extern SpinLock gc_alloc_block_sync;
#endif
#if defined(PROF_SPIN) && defined(THREADED_RTS)
-StgWord64 whitehole_spin;
+extern StgWord64 whitehole_spin;
#endif
#define WORK_UNIT_WORDS 128