use the function deprecated attribute if compiling with GCC to get wa…

…rnings for malloc/free usages. We always want to use our zmalloc/zfree versions for memory usage tracking

src/redis.c

@@ -826,7 +826,7 @@ int qsortRedisCommands(const void *r1, const void *r2) {
 
 void sortCommandTable() {
     /* Copy and sort the read-only version of the command table */
-    commandTable = (struct redisCommand*)malloc(sizeof(readonlyCommandTable));
+    commandTable = (struct redisCommand*)zmalloc(sizeof(readonlyCommandTable));
     memcpy(commandTable,readonlyCommandTable,sizeof(readonlyCommandTable));
     qsort(commandTable,
         sizeof(readonlyCommandTable)/sizeof(struct redisCommand),

src/redis.h

@@ -885,4 +885,12 @@ void publishCommand(redisClient *c);
 void watchCommand(redisClient *c);
 void unwatchCommand(redisClient *c);
 
+#if defined(__GNUC__)
+void *malloc(size_t size) __attribute__ ((deprecated));
+void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
+void free(void *ptr) __attribute__ ((deprecated));
+void *malloc(size_t size) __attribute__ ((deprecated));
+void *realloc(void *ptr, size_t size) __attribute__ ((deprecated));
+#endif
+
 #endif