vim: fix build on old macOS; support ruby31

[barracuda156]

Description

See commits

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 10.6
Xcode 3.2

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL in commit message?
• checked your Portfile with port lint --nitpick?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?
• checked that the Portfile's most important variants haven't been broken?

[macportsbot]

Notifying maintainers:
@raimue for port vim.

[barracuda156]

Won't bother with ruby stuff, since it fails:

In file included from /opt/local/include/ruby-3.1.4/ruby/ruby.h:25,
                 from /opt/local/include/ruby-3.1.4/ruby.h:38,
                 from if_ruby.c:110:
/opt/local/include/ruby-3.1.4/ruby/defines.h:55:23: error: stdalign.h: No such file or directory
2949 translated messages.

Let's just fix building on old macOS here.

[barracuda156]

Ah, wait, it works with the right gcc picked. Modern ruby uses modern gcc, so Xcode one cannot build this with ruby enabled.

UPD. Should be good now.

[raimue]

Looks good to me! I also synchronized the changes to the MacVim port as far as they apply. Thanks for the port update.