--- setup.py.orig 2025-09-19 02:38:33.000000000 +0800 +++ setup.py 2025-09-22 01:53:52.000000000 +0800 @@ -40,10 +40,6 @@ base_compile_args.append('-mno-avx2') elif have_avx2: base_compile_args.append('-mavx2') -# On macOS, force libc++ in case the system tries to use `stdlibc++`. -# The latter is often absent from modern macOS systems. -if sys.platform == 'darwin': - base_compile_args.append('-stdlib=libc++') def info(*msg):