numpy.distutils.command.build_ext: append build C libraries as dependencies of

the extension, to force recompiling if they change. (It should really only force relinking, but adding that is tougher.)

1 files changed, 7 insertions, 1 deletions

diff --git a/numpy/distutils/command/build_ext.py b/numpy/distutils/command/build_ext.py
index 9277f9393..4f5819175 100644
--- a/numpy/distutils/command/build_ext.py
+++ b/numpy/distutils/command/build_ext.py
@@ -89,6 +89,7 @@ class build_ext (old_build_ext):
                              ' overwriting build_info\n%s... \nwith\n%s...' \
                              % (libname, `clibs[libname]`[:300], `build_info`[:300]))
                 clibs[libname] = build_info
+        local_clibs = clibs.copy()
         # .. and distribution libraries:
         for libname,build_info in self.distribution.libraries or []:
             if clibs.has_key(libname):
@@ -105,13 +106,18 @@ class build_ext (old_build_ext):
             c_lib_dirs = []
             macros = []
             for libname in ext.libraries:
-                if clibs.has_key(libname):
+                if libname in clibs:
                     binfo = clibs[libname]
                     c_libs += binfo.get('libraries',[])
                     c_lib_dirs += binfo.get('library_dirs',[])
                     for m in binfo.get('macros',[]):
                         if m not in macros:
                             macros.append(m)
+                if libname in local_clibs:
+                    c = self.compiler
+                    outname = c.library_filename(libname,
+                                                 output_dir=self.build_temp)
+                    ext.depends.append(outname)
                 for l in clibs.get(libname,{}).get('source_languages',[]):
                     ext_languages.add(l)
             if c_libs: