Port to OSX.

#if defined(__APPLE__)
static pthread_mutex_t ydb_big_lock = PTHREAD_MUTEX_INITIALIZER;
#else
static pthread_mutex_t ydb_big_lock = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
#endif

Unsure if this does the same thing for apple.
Addresses #280

git-svn-id: file:///svn/tokudb@1696 c7de825b-a66e-492c-adef-691d508d4ae1

src/ydb.c

@@ -32,7 +32,11 @@ const char *toku_copyright_string = "Copyright (c) 2007 Tokutek Inc.  All rights
    every call (including methods) into the tokudb library gets the lock 
    no internal function should invoke a method through an object */
 
+#if defined(__APPLE__)
+static pthread_mutex_t ydb_big_lock = PTHREAD_MUTEX_INITIALIZER;
+#else
 static pthread_mutex_t ydb_big_lock = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
+#endif
 
 static inline void ydb_lock() {
     int r = pthread_mutex_lock(&ydb_big_lock); assert(r == 0);