Re: Kerberos support broken on MSVC builds for Windows x64?

I was experimenting with building with MIT Kerberos support on 64 bit Windows using MSVC and ran into a number of linker errors along the lines of:

"C:\Users\dpage\Downloads\postgresql-12.4\pgsql.sln" (default target) (1) ->
"C:\Users\dpage\Downloads\postgresql-12.4\zic.vcxproj" (default target) (2) ->
(Link target) ->
  LINK : fatal error LNK1181: cannot open input file 'C:\Progra~1\MIT\Kerberos\lib.obj' [C:\Users\dpage\Downloads\postgresql-12.4\zic.vcxproj]

That was after I had to manually add the include and lib paths in buildenv.pl. Diving in a bit further I found a couple of things:

1) The only buildfarm machine doing 64bit Windows Kerberos enabled builds with MSVC is hammerkop. It enables it by setting the "krb5" option in config.pl, however, as far as I can see (going back to 9.5), the option is actually "gss". I can't see any sign in the log for the make step that it actually is making any attempt to build with Kerberos, despite the UI showing the icon for it.

2) I can't find anything in the MSVC build scripts in src/tools/msvc to deal with 64bit Kerberos builds - Solution.pm seems to unconditionally try to link with the 32bit libraries (e.g. lib/i386/krb5_32.lib instead of lib/amd64/krb5_64.lib).

I'm assuming noone has tried a build with 64bit Kerberos, or am I missing something?

Sidenote: I'm not sure even a 32bit Kerberos build will work, as Solution.pm assumes the headers are in $self->{options}->{gss} . '\inc\krb5', however in at least the latest installer from MIT they're actually in $self->{options}->{gss} . '\include'.