Merge change 7067

* changes:
  add a ctor to Mutex to specify the type, which can be shared. This is used by sf and af an soon will allow some optimization in the kernel for non shared mutexes
diff --git a/media/libmedia/Android.mk b/media/libmedia/Android.mk
index 806ef52..ebbf13f 100644
--- a/media/libmedia/Android.mk
+++ b/media/libmedia/Android.mk
@@ -26,7 +26,7 @@
 LOCAL_MODULE:= libmedia
 
 ifeq ($(TARGET_OS)-$(TARGET_SIMULATOR),linux-true)
-LOCAL_LDLIBS += -ldl
+LOCAL_LDLIBS += -ldl -lpthread
 endif
 
 ifneq ($(TARGET_SIMULATOR),true)