Handle extensions=None case.

e562ca72 · Robert Bradshaw · 649c4da4 · e562ca72
Commit e562ca72 authored Sep 07, 2016 by Robert Bradshaw
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Cython/Distutils/build_ext.py Cython/Distutils/build_ext.py +4 -3

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--- a/Cython/Distutils/build_ext.py
+++ b/Cython/Distutils/build_ext.py
@@ -12,6 +12,7 @@ else:

 class build_ext(_build_ext.build_ext, object):
    def finalize_options(self):
+        if self.distribution.ext_modules:
            from Cython.Build.Dependencies import cythonize
            self.distribution.ext_modules[:] = cythonize(
                self.distribution.ext_modules)