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-rw-r--r--numpy/core/setup.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/numpy/core/setup.py b/numpy/core/setup.py
index 072ac3c11..5d338d19d 100644
--- a/numpy/core/setup.py
+++ b/numpy/core/setup.py
@@ -419,6 +419,10 @@ def configuration(parent_package='',top_path=None):
else:
raise ValueError("Unrecognized long double format: %s" % rep)
+ # Py3K check
+ if sys.version_info[0] == 3:
+ moredefs.append(('NPY_PY3K', 1))
+
# Generate the config.h file from moredefs
target_f = open(target, 'w')
for d in moredefs: