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Work around MacVim r179 (Vim 9.1.0)'s incompatibility issue with Ruby 3.3 by using Ruby 3.2 instead

Workaround for MacVim r179 (Vim 9.1.0)'s incompatibility issue with Ruby 3.3

Patch

A patch is available on 3 Jan 2024: Commit: patch 9.1.0003: Cannot build against Ruby 33 dynamically.

However, it looks like the latest MacVim release (r179 on 5 Jan 2024) does not include that patch.

Workaround: Set up MacVim and Command-T to use Ruby 3.2

Install Ruby 3.2 with Homebrew (keg-only):

brew install ruby@3.2

Set up Vim to use Ruby 3.2:

set rubydll=/opt/homebrew/Cellar/ruby@3.2/3.2.3/lib/libruby.3.2.dylib

Compile Command-T with Ruby 3.2:

cd bundle/command-t/ruby/command-t/ext/command-t
make clean
/opt/homebrew/opt/ruby@3.2/bin/ruby extconf.rb && make
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