When built in-place, make sure build_clib is built inplace too.

If numpy is built in-place and used by a third-party, we need to make
sure installable libraries are put in the source directory, to mimic an
install. Whenever build_ext is called with -i option, we call build_clib
with the -i option as well.

1 files changed, 14 insertions, 2 deletions

diff --git a/numpy/distutils/command/build_ext.py b/numpy/distutils/command/build_ext.py
index 2b114d4a7..4d11d033d 100644
--- a/numpy/distutils/command/build_ext.py
+++ b/numpy/distutils/command/build_ext.py
@@ -57,8 +57,20 @@ class build_ext (old_build_ext):
         self.run_command('build_src')
 
         if self.distribution.has_c_libraries():
-            self.run_command('build_clib')
-            build_clib = self.get_finalized_command('build_clib')
+            if self.inplace:
+                if self.distribution.have_run.get('build_clib'):
+                    log.warn('build_clib already run, it is too late to ' \
+                            'ensure in-place build of build_clib')
+                else:
+                    build_clib = self.distribution.get_command_obj('build_clib')
+                    build_clib.inplace = 1
+                    build_clib.ensure_finalized()
+                    build_clib.run()
+                    self.distribution.have_run['build_clib'] = 1
+
+            else:
+                self.run_command('build_clib')
+                build_clib = self.get_finalized_command('build_clib')
             self.library_dirs.append(build_clib.build_clib)
         else:
             build_clib = None