--- a/src/corelib/thread/thread.pri	
+++ a/src/corelib/thread/thread.pri	
@@ -53,7 +53,7 @@ qtConfig(thread) {
         darwin {
             SOURCES += thread/qmutex_mac.cpp
         } else: linux {
-            SOURCES += thread/qmutex_linux.cpp
+            #SOURCES += thread/qmutex_linux.cpp
         } else {
             SOURCES += thread/qmutex_unix.cpp
         }