From 87339039b025d1c3ac0a823e07ecac3a8deb2137 Mon Sep 17 00:00:00 2001
From: Stefan Behnel <stefan_ml@behnel.de>
Date: Sun, 11 Aug 2013 09:15:17 +0200
Subject: [PATCH] avoid useless overhead if we don't find anything to do

---
 bin/cythonize | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/cythonize b/bin/cythonize
index 5d8d1d4..9c02b7e 100755
--- a/bin/cythonize
+++ b/bin/cythonize
@@ -95,7 +95,7 @@ def cython_compile(path_pattern, options):
                 if base_dir:
                     os.chdir(cwd)
 
-            if options.build:
+            if ext_modules and options.build:
                 if len(ext_modules) > 1 and options.parallel:
                     if pool is None:
                         try:
-- 
2.7.4