--- setup.py	2023-10-12 05:17:50.000000000 +0800
+++ setup.py	2024-09-03 22:22:39.000000000 +0800
@@ -202,7 +202,6 @@
         if cpp11_flag not in eca:
             eca.append(cpp11_flag)
 
-        eca += [cpp11_flag, '-mmacosx-version-min=10.9', '-stdlib=libc++']
 
     # TODO: Windows