1 files changed, 12 insertions, 9 deletions
diff --git a/deps/icu-small/source/common/serv.cpp b/deps/icu-small/source/common/serv.cpp
index 2fb35bd1a5..40940740d0 100644
--- a/deps/icu-small/source/common/serv.cpp
+++ b/deps/icu-small/source/common/serv.cpp
@@ -333,7 +333,10 @@ U_CDECL_END
 ******************************************************************
 */
 
-static UMutex lock = U_MUTEX_INITIALIZER;
+static UMutex *lock() {
+    static UMutex m = U_MUTEX_INITIALIZER;
+    return &m;
+}
 
 ICUService::ICUService()
 : name()
@@ -358,7 +361,7 @@ ICUService::ICUService(const UnicodeString& newName)
 ICUService::~ICUService()
 {
     {
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
         clearCaches();
         delete factories;
         factories = NULL;
@@ -449,7 +452,7 @@ ICUService::getKey(ICUServiceKey& key, UnicodeString* actualReturn, const ICUSer
         // if factory is not null, we're calling from within the mutex,
         // and since some unix machines don't have reentrant mutexes we
         // need to make sure not to try to lock it again.
-        XMutex mutex(&lock, factory != NULL);
+        XMutex mutex(lock(), factory != NULL);
 
         if (serviceCache == NULL) {
             ncthis->serviceCache = new Hashtable(status);
@@ -615,7 +618,7 @@ ICUService::getVisibleIDs(UVector& result, const UnicodeString* matchID, UErrorC
     }
 
     {
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
         const Hashtable* map = getVisibleIDMap(status);
         if (map != NULL) {
             ICUServiceKey* fallbackKey = createKey(matchID, status);
@@ -692,7 +695,7 @@ ICUService::getDisplayName(const UnicodeString& id, UnicodeString& result, const
 {
     {
         UErrorCode status = U_ZERO_ERROR;
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
         const Hashtable* map = getVisibleIDMap(status);
         if (map != NULL) {
             ICUServiceFactory* f = (ICUServiceFactory*)map->get(id);
@@ -744,7 +747,7 @@ ICUService::getDisplayNames(UVector& result,
     result.setDeleter(userv_deleteStringPair);
     if (U_SUCCESS(status)) {
         ICUService* ncthis = (ICUService*)this; // cast away semantic const
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
 
         if (dnCache != NULL && dnCache->locale != locale) {
             delete dnCache;
@@ -849,7 +852,7 @@ URegistryKey
 ICUService::registerFactory(ICUServiceFactory* factoryToAdopt, UErrorCode& status)
 {
     if (U_SUCCESS(status) && factoryToAdopt != NULL) {
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
 
         if (factories == NULL) {
             factories = new UVector(deleteUObject, NULL, status);
@@ -880,7 +883,7 @@ ICUService::unregister(URegistryKey rkey, UErrorCode& status)
     ICUServiceFactory *factory = (ICUServiceFactory*)rkey;
     UBool result = FALSE;
     if (factory != NULL && factories != NULL) {
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
 
         if (factories->removeElement(factory)) {
             clearCaches();
@@ -900,7 +903,7 @@ void
 ICUService::reset()
 {
     {
-        Mutex mutex(&lock);
+        Mutex mutex(lock());
         reInitializeFactories();
         clearCaches();
     }