diff -ruN icu.orig/source/common/locid.cpp icu/source/common/locid.cpp
--- build/icu.orig/source/common/locid.cpp	2013-03-06 21:27:35.170696967 +0100
+++ build/icu/source/common/locid.cpp	2013-03-06 21:29:47.711378977 +0100
@@ -53,7 +53,7 @@
 static Locale *gLocaleCache = NULL;
 
 // gDefaultLocaleMutex protects all access to gDefaultLocalesHashT and gDefaultLocale.
-static UMutex gDefaultLocaleMutex = U_MUTEX_INITIALIZER;
+static UMTX gDefaultLocaleMutex = NULL;
 static UHashtable *gDefaultLocalesHashT = NULL;
 static Locale *gDefaultLocale = NULL;