Generate headers in the right place for inplace builds.

1 files changed, 14 insertions, 3 deletions

diff --git a/numpy/distutils/misc_util.py b/numpy/distutils/misc_util.py
index 30a5014aa..96311b311 100644
--- a/numpy/distutils/misc_util.py
+++ b/numpy/distutils/misc_util.py
@@ -114,9 +114,20 @@ def njoin(*path):
 def get_mathlibs(path=None):
     """Return the MATHLIB line from numpyconfig.h
     """
-    if path is None:
-        path = os.path.join(get_numpy_include_dirs()[0], 'numpy')
-    config_file = os.path.join(path,'numpyconfig.h')
+    if path is not None:
+        config_file = os.path.join(path,'numpyconfig.h')
+    else:
+        # Look for the file in each of the numpy include directories.
+        dirs = get_numpy_include_dirs()
+        for path in dirs:
+            fn = os.path.join(path,'numpyconfig.h')
+            if os.path.exists(fn):
+                config_file = fn
+                break
+        else:
+            raise DistutilsError('numpyconfig.h not found in numpy include '
+                'dirs %r' % (dirs,))
+
     fid = open(config_file)
     mathlibs = []
     s = '#define MATHLIB'