Persuade GCC that there is nothing worth warning about here (there isn't).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149834 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Mutex.cpp b/lib/Support/Mutex.cpp
index e146b8b..da5baab 100644
--- a/lib/Support/Mutex.cpp
+++ b/lib/Support/Mutex.cpp
@@ -51,7 +51,7 @@
 
   // Initialize the mutex attributes
   int errorcode = pthread_mutexattr_init(&attr);
-  assert(errorcode == 0);
+  assert(errorcode == 0); (void)errorcode;
 
   // Initialize the mutex as a recursive mutex, if requested, or normal
   // otherwise.