I just checked in changes to a fair number of files to no longer test for the presence of header files required by ANSI C (C89). I ran the test suite successfully on Mac OS X (gcc 3.3) and Solaris 8 (gcc 2.95.3). On Mandrake 8.1 (gcc 3.0.1) I had some trouble with tests related to the bsddb package, but I was having those same problems before applying my changes. Once I can do a cvs up again I'll try cygwin as well. Obvious stuff I couldn't check: Windows, OS/2, RISCOS. (The handcrafted pyconfig.h files for all changed.) Please give it a whirl. Skip