--- zstd-1.3.8.1/setup.py.orig	2019-03-04 17:40:51.208528890 +0700

+++ zstd-1.3.8.1/setup.py	2019-03-04 17:58:37.644953996 +0700

@@ -97,6 +97,8 @@

 class ZstdBuildExt( build_ext ):

     def build_extensions(self):

+        if 'test' in sys.argv: return

+

         c = self.compiler.compiler_type

         if c in COPT:

            for e in self.extensions: