Patch setup.py so sdist works

[GoogleCodeExporter]

With this patch, protobuf can be installed with easy_install/pip/buildout/etc...

The required changes are:
1. cpp extensions should be built automatically, since the user cannot choose 
at install time
2. headers must be included in the source distribution
3. the compiled proto files are already included, but we should not exit when 
the sources are missing

Original issue reported on code.google.com by devin.ba...@gmail.com on 11 Aug 2011 at 2:38

Attachments:

• setup-sdist-fix.diff

[GoogleCodeExporter]

Thanks for the patch. Could you please sign the Contributor License Agreement, 
which gives Google a license to use your work.  Can you please let me know 
after you've signed one of the following:

http://code.google.com/legal/individual-cla-v1.0.html -- If you own copyright 
on your patch.  (This can be signed via a simple web form at the bottom of the 
page.)
http://code.google.com/legal/corporate-cla-v1.0.html -- If your employer does.

Sorry for the inconvenience. 

Original comment by liujisi@google.com on 11 Aug 2011 at 11:42

• Changed state: Accepted

[GoogleCodeExporter]

ok, I have signed the agreement.

Original comment by devin.ba...@gmail.com on 12 Aug 2011 at 1:57