Merge pull request #57 from RedisLabsModules/rof_cros_ref_fix_3

fix RedisModule_SetDataTypeExtensions can't have extern and init on t…

Author: OfirMos

redismodule.h

@@ -619,7 +619,7 @@ typedef struct RedisModuleTypeExtMethods {
     RedisModuleTypeGetKeyMetadataForRdbFunc get_key_metadata_for_rdb;
 } RedisModuleTypeExtMethods;
 
-__attribute__ ((weak)) REDISMODULE_API int (*RedisModule_SetDataTypeExtensions)(RedisModuleCtx *ctx, RedisModuleType *mt, RedisModuleTypeExtMethods *typemethods) REDISMODULE_ATTR = NULL;
+__attribute__ ((weak)) REDISMODULE_API int (*RedisModule_SetDataTypeExtensions)(RedisModuleCtx *ctx, RedisModuleType *mt, RedisModuleTypeExtMethods *typemethods) REDISMODULE_ATTR;
 
 typedef void (*RedisModuleSwapPrefetchCB)(RedisModuleCtx *ctx, RedisModuleString *key, void* user_data);