BUG: Fix build under Python 2.7. Closes #1180. Thanks to Fabian Pedre…

…gosa.

This patch defines a macro to access C99 extensions from C++.

This prevented scipy.sparse.sparsetools to compile correctly under
python2.7, because the wrappers are C++ files but ndarraytypes.h
references some C99 macros in inttypes.h.

scipy/sparse/sparsetools/SConscript

@@ -3,6 +3,7 @@
 from numscons import GetNumpyEnvironment
 
 env = GetNumpyEnvironment(ARGUMENTS)
+env.PrependUnique(CPPDEFINES = '__STDC_FORMAT_MACROS')
 
 for fmt in ['csr','csc','coo','bsr','dia', 'csgraph']:
     sources = [ fmt + '_wrap.cxx' ]

scipy/sparse/sparsetools/setup.py

@@ -9,7 +9,9 @@ def configuration(parent_package='',top_path=None):
     for fmt in ['csr','csc','coo','bsr','dia','csgraph']:
         sources = [ fmt + '_wrap.cxx' ]
         depends = [ fmt + '.h' ]
-        config.add_extension('_' + fmt, sources=sources, depends=depends)
+        config.add_extension('_' + fmt, sources=sources,
+            define_macros=[('__STDC_FORMAT_MACROS', 1)],
+            depends=depends)
 
     return config