$OpenBSD$
--- setup.py.orig	Sat Nov 12 18:19:59 2016
+++ setup.py	Sat Nov 12 18:20:32 2016
@@ -31,17 +31,17 @@ def prepare_modules():
     make_c_files()
     ext = [Extension("bottleneck.reduce",
                      sources=["bottleneck/src/reduce.c"],
-                     extra_compile_args=['-O2'])]
+                     extra_compile_args=[])]
     ext += [Extension("bottleneck.move",
                       sources=["bottleneck/src/move.c",
                                "bottleneck/src/move_median/move_median.c"],
-                      extra_compile_args=['-O2'])]
+                      extra_compile_args=[])]
     ext += [Extension("bottleneck.nonreduce",
                       sources=["bottleneck/src/nonreduce.c"],
-                      extra_compile_args=['-O2'])]
+                      extra_compile_args=[])]
     ext += [Extension("bottleneck.nonreduce_axis",
                       sources=["bottleneck/src/nonreduce_axis.c"],
-                      extra_compile_args=['-O2'])]
+                      extra_compile_args=[])]
     return ext
 
 
