Also eliminates some C code in Python/import.c as well.

Patch by Eric Snow with verification by comparing against another
patch from Jeff Knupp.

importlib.__init__, then catch the KeyError raised, not ImportError.

file size header field.

Thanks to Marc Abramowitz and Ronan Lamy for helping out with various
parts of the patch.

  Regenerate aclocalm4 and configure.

  Regenerate aclocalm4 and configure.

  from GCC for native builds

OSError.__init__ could produce incomplete instances, leading to crashes
when calling str() on them.

  for host compiler.

  Add NEWS entry, rename _PROJECT_BASE to _PYTHON_PROJECT_BASE.

None of the _mpd_shortadd() or _mpd_shortmul() functions read uninitialized
values. Previously zeroing was required since _mpd_real_size() was called
on the output array.

  for host compiler.

   require values set in CONFIG_SITE.

set cross_compiling = False for now.