Ok. Taking a look at trunk...

The following could be converted to AC_TRY_COMPILE statements for the
3rd AC_TRY_RUN tuple:

1. $ac_enable_profiling : 697
2. $ac_cv_no_strict_aliasing_ok : 921
3. $ac_cv_opt_olimit_ok : 1070
4. $ac_cv_olimit_ok : 1092
5. $ac_cv_pthread_is_default : 1126
6. $ac_cv_kpthread : 1163
7. $ac_cv_pthread : 1225
8. $ac_osx_32bit : 1569
9. $ac_cv_pthread_system_supported : 2229
10. $ac_cv_have_size_t_format : 3959

The following can just be converted to AC_TRY_COMPILE:
1. $ipv6 : 2278
2. $ac_cv_have_chflags : 2663
3. $ac_cv_have_lchflags : 2693

The following will need to be sorted out, as to what needs to be done
here, as they are legitimate runtime only tests:
1. $ac_cv_little_endian_double : 3249
2. $ac_cv_big_endian_double : 3271
3. $ac_cv_mixed_endian_double : 3299
4. $ac_cv_x87_double_rounding : 3354
5. $ac_cv_broken_sem_getvalue : 3395
6. $ac_cv_tanh_preserves_zero_sign : 3430
7. $ac_cv_wchar_t_signed : 3510
8. $ac_cv_rshift_extends_sign : 3597
9. $ac_cv_broken_nice : 3714
10. $ac_cv_broken_poll : 3735
11. $ac_cv_working_tzset : 3772

Taking a look at py3k, most of the offsets are the same -- some have
changed, but the only the test which doesn't exist in trunk is the
following:

1. $ac_cv_broken_mbstowcs : 3872

Again, this is a valid runtime test, so it needs to be sorted out what
should be done here with cross-compilation.