bugs in 6.0 final (internal error and missing symbols)

[vszakats]

Hi Pelle,

Our FOSS app retested with 6.0 *release* version:

1) win64 build stops with missing symbol __WSAFDIsSet() at link phase (AFAIR I've reported something similar for 5.0)
2) Quick lookup shows InterlockedCompareExchange() is still missing from win64 libs (and they are still present in headers).
3) In win32, without any cmdline options, I'm getting this compiler internal error:
   sha2.c(428): fatal error: Internal error: find_cheapest_spill_range().
   Source code is available here:
   http://www.ouah.org/ogay/sha2/sha2.tar.gz

Brgds,
Viktor