Index: setup.py
--- setup.py.orig
+++ setup.py
@@ -107,7 +107,6 @@ class SAByEncBuild(build_ext):
                 "-fomit-frame-pointer",
                 "-fno-rtti",
                 "-fno-exceptions",
-                "-O3",
                 "-fPIC",
                 "-fwrapv",
             ]
