(this was easier than I thought!)

And yet another emergency fix for #13803 bootstrap issue: Under Solaris, distutils doesn't include bitness in the directory name

Yet another emergency fix for #13803 bootstrap issue: Under Solaris, distutils doesn't include bitness in the directory name

Emergency fix for #13803 bootstrap issue: Under Solaris, distutils doesn't include bitness in the directory name

(prelude to issue #6531).

Patch by Oleg Plakhotnyuk.

changes).

Patch by Roger Serwy.

to a single #define instead of having several copies in several files.

This excludes the Modules/ tree (datetime and expat both have a copy
for their own purposes with no need for it to be the same).