put back in lock

Author: inorton

clcache.py

@@ -146,7 +146,8 @@ def computeKey(self, compilerBinary, commandLine):
         return h.hexdigest()
 
     def hasEntry(self, key):
-        return os.path.exists(self.cachedObjectName(key))
+        with self.lock:
+            return os.path.exists(self.cachedObjectName(key))
 
     def setEntry(self, key, objectFileName, compilerOutput):
         with self.lock: