--- src/nanodbc/nanodbc.cpp	2025-12-01 22:27:05.000000000 +0800
+++ src/nanodbc/nanodbc.cpp	2025-12-26 04:40:25.000000000 +0800
@@ -50,8 +50,10 @@
 
 #ifdef __APPLE__
 // silence spurious OS X deprecation warnings
+#ifndef MAC_OS_X_VERSION_MIN_REQUIRED
 #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
 #endif
+#endif
 
 #ifdef _WIN32
 // needs to be included above sql.h for windows