diff -dwup3 -x *svn* -x *makefile.inc -x *sources -r c:\dev\openib\ofw\gen1\branches\mlx4_30\trunk\inc\complib\cl_perf.h .\inc\complib\cl_perf.h
--- c:\dev\openib\ofw\gen1\branches\mlx4_30\trunk\inc\complib\cl_perf.h	Thu May 31 11:22:17 2012
+++ .\inc\complib\cl_perf.h	Thu Jul 26 16:54:54 2012
@@ -762,6 +762,10 @@ cl_perf_stop(
  * performance tracking.
  */
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
 
 /*
  * Initialize the state of the performance tracking structure.
@@ -801,5 +805,8 @@ CL_EXPORT void CL_API
 __cl_perf_display(
 	IN	const cl_perf_t* const	p_perf );
 
+#ifdef __cplusplus
+}	/* extern "C" */
+#endif
 
 #endif	/* _CL_PERF_H_ */