Fix build issue related to type conversation

Signed-off-by: Timur Valeev <valeev.timur@huawei.com>

BUILD.gn

@@ -21,7 +21,6 @@ config("libmimalloc_config") {
     "-fomit-frame-pointer",
     "-frounding-math",
     "-pipe",
-    "-DMI_DEBUG=0",
     "-Wno-unsupported-floating-point-opt",
     "-Wno-bitwise-op-parentheses",
     "-DMI_DEBUG=0",
@@ -64,6 +63,7 @@ ohos_static_library("libmimalloc_static") {
   ]
 
   defines = [
+    "MI_MALLOC_OVERRIDE",
     "MI_TLS_PTHREAD",
     "__OHOS__",
     "mimalloc_EXPORTS"

src/options.c

@@ -304,7 +304,7 @@ static mi_decl_thread bool recurse = false;
 static mi_decl_noinline bool mi_recurse_enter_prim(void) {
 #if defined(MI_TLS_PTHREAD)
   void* key_value = pthread_getspecific(recurse_key);
-  if ((int)key_value == 1) return false;
+  if (key_value == (void*)1) return false;
   pthread_setspecific(recurse_key, (void*)(1));
 #else
   if (recurse) return false;