--- ace/config-macosx-leopard.h	2024-05-16 18:28:25.000000000 +0800
+++ ace/config-macosx-leopard.h	2025-03-18 02:43:18.000000000 +0800
@@ -221,8 +221,4 @@
 
 #define ACE_IOCTL_TYPE_ARG2 unsigned long
 
-#if defined(__APPLE_CC__) && (__APPLE_CC__ < 1173)
-#error "Compiler must be upgraded, see http://developer.apple.com"
-#endif /* __APPLE_CC__ */
-
 #endif /* ACE_CONFIG_MACOSX_LEOPARD_H */