Message 69828 - Python tracker
The easiest way to test the configure bits would be to build on 10.5 with --enable-universalsdk and --enable-universalsdk=/. Both should work on 10.5, while using different SDKs (with slightly different unix APIs). However: it shouldn't be necessary to test that specific bit, I introduced issue3381 when I fixed the "configure should use the right CFLAGS" issue for 10.5 and my patch for issue3381 doesn't change the compiler flags on 10.5.