ruby 2.4.10

[sevan]

On the road to switching things to OpenSSL 3, I updated ruby. Unfortunately it doesn't support OpenSSL 3 as is (haven't looked at back-porting patches to ossl_*.c files where it fails.
Otherwise built on Tiger ppc/x86 & Leopard x86
It complains about a few things, hence a draft pull request.

*** Following extensions failed to configure:
../.././ext/win32/extconf.rb:0: Failed to configure win32. It will not be installed.
../.././ext/win32ole/extconf.rb:0: Failed to configure win32ole. It will not be installed.

On Tiger there's a cosmetic issue where it tries to print the summary of configuration at the end of running configure but since it invokes head with an unsupported option, it fails to print.

Configuration summary for ruby version 2.4.10                                                                                                       
                                                                                                                                                    
head: illegal option -- c                                                                                                                           
Usage: head [-n lines] [file ...]

Not sure if this is serious since the build ignores it:

making dummy probes.h
/private/tmp/ruby20231026-26902-vefh6v/ruby-2.4.10/tool/vcs.rb:12:in `realpath': undefined method `Pathname' for File:Class (NoMethodError)
        from /private/tmp/ruby20231026-26902-vefh6v/ruby-2.4.10/tool/vcs.rb:108:in `detect'
        from /private/tmp/ruby20231026-26902-vefh6v/ruby-2.4.10/tool/vcs.rb:106:in `loop'
        from /private/tmp/ruby20231026-26902-vefh6v/ruby-2.4.10/tool/vcs.rb:106:in `detect'
        from /private/tmp/ruby20231026-26902-vefh6v/ruby-2.4.10/tool/vcs.rb:104:in `each'
        from /private/tmp/ruby20231026-26902-vefh6v/ruby-2.4.10/tool/vcs.rb:104:in `detect'
        from ./tool/file2lastrev.rb:83
make: [.revision.time] Error 1 (ignored)

[mistydemeo]

The failure to build the win32 extensions should be fine! As for head... hm, I wonder if we can just use a newer head to build.

Maybe it's worth bumping Ruby past 2.4 at this point so we can do OpenSSL 3.

[sevan]

ack, I'll take a look at newer versions of Ruby to see if they're ok with building on Tiger.
I might just patch the configure script to do print the summary by line count rather than add something like coreutils as a build dep, since it's cosmetic.

[sevan]

Ruby 3.2 has OpenSSL 3 support, possibly Ruby 3.1 also.
By co-incidence Ruby grew support for legacy Darwin on PowerPC once again, last year. With a bit of patching, I have gotten the initial core parts to build, resulting in miniruby being generated. The build then fails as miniruby fails to execute in the next stage of the build process. I went back to Ruby 3.1.4 but there are further problem with threading which require backporting changes. I've tested on a G4 & G5 running Tiger, will see if thing work on Leopard next and work backwards again.

[sevan]

Found the issue causing the crash in miniruby and have managed to build the latest release of Ruby 3.2 on Tiger with bodges.

% bin/ruby -v
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [powerpc-darwin8.0]

Now just need to address the issues I sidestepped :)

[sevan]

Of the issues I sidestepped I'm stuck on one issue which needs work. If it's possible this should be merged in the meantime and I will bring in ruby 3 in the new year.