[PATCH 06/19] includes: Fix IsEqualPropertyKey

[Maarten Lankhorst]

---
 include/propkeydef.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/propkeydef.h b/include/propkeydef.h
index 2a45984..b3a2559 100644
--- a/include/propkeydef.h
+++ b/include/propkeydef.h
@@ -48,7 +48,11 @@
 #endif
 
 #ifndef IsEqualPropertyKey
+#ifdef __cplusplus
 #define IsEqualPropertyKey(a,b) (((a).pid == (b).pid) && IsEqualIID((a).fmtid,(b).fmtid))
+#else
+#define IsEqualPropertyKey(a,b) (((a).pid == (b).pid) && IsEqualIID(&(a).fmtid,&(b).fmtid))
+#endif
 #endif
 
 #ifndef _PROPERTYKEY_EQUALITY_OPERATORS_
-- 
1.7.0


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