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-rw-r--r--numpy/distutils/command/build_src.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/numpy/distutils/command/build_src.py b/numpy/distutils/command/build_src.py
index c7249c243..818bd52fd 100644
--- a/numpy/distutils/command/build_src.py
+++ b/numpy/distutils/command/build_src.py
@@ -239,7 +239,8 @@ class build_src(build_ext.build_ext):
# does not disrupt how distutils want to do things when with the
# original install command instance.
install_cmd = copy.copy(get_cmd('install'))
- install_cmd.finalize_options()
+ if not install_cmd.finalized == 1:
+ install_cmd.finalize_options()
build_npkg = False
gd = {}
if hasattr(install_cmd, 'install_libbase'):