common: fix compatibility issue for MSVC.

__attribute__ syntax is not supported by MSVC.

We can turn it on optionally.

diff --git a/src/lib/tvgCommon.h b/src/lib/tvgCommon.h
index f5d4a6d09e31d8dd6c6637ffd39b50cf98a14769..52998b873245331a2535d07688fd9ed1e2a8a0a6 100644 (file)
--- a/src/lib/tvgCommon.h
+++ b/src/lib/tvgCommon.h
@@ -31,6 +31,10 @@ using namespace tvg;
 #define FILL_ID_LINEAR 0
 #define FILL_ID_RADIAL 1
 
-#define TVG_UNUSED __attribute__ ((__unused__))
+#ifdef _MSC_VER
+    #define TVG_UNUSED
+#else
+    #define TVG_UNUSED __attribute__ ((__unused__))
+#endif
 
 #endif //_TVG_COMMON_H_