Merge pull request #363 from yoshoku/darwin-arm64

Disable march=native option when building on Apple M1

Author: yurymalkov

setup.py

@@ -1,5 +1,6 @@
 import os
 import sys
+import platform
 
 import numpy as np
 import pybind11
@@ -86,6 +87,8 @@ class BuildExt(build_ext):
     }
 
     if sys.platform == 'darwin':
+        if platform.machine() == 'arm64':
+            c_opts['unix'].remove('-march=native')
         c_opts['unix'] += ['-stdlib=libc++', '-mmacosx-version-min=10.7']
         link_opts['unix'] += ['-stdlib=libc++', '-mmacosx-version-min=10.7']
     else: