$OpenBSD: patch-setup_py,v 1.3 2021/02/19 21:05:10 ajacoutot Exp $

remove -O3

Index: setup.py
--- setup.py.orig
+++ setup.py
@@ -102,7 +102,6 @@ elif compiler in ('unix', 'mingw32'):
         extension_kwargs = pkgconfig_parse('liblz4')
     else:
         extension_kwargs['extra_compile_args'] = [
-            '-O3',
             '-Wall',
             '-Wundef'
         ]
