No `config.log` to see more details on build failures

[gmac]

I'm on Intel OSX 13.4, and trying to install Ruby 3.2.2:

% frum install 3.2.2
==> Downloading https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.2.tar.xz
==> Extracting ruby-3.2.2.tar.xz
==> Building Ruby 3.2.2
error: Can't build Ruby: configure failed: configure: error: in `/Users/gmac/.frum/versions/.downloads/.tmpARRsm0/ruby-3.2.2':
configure: error: C compiler cannot create executables
See `config.log' for more details

I would expect to find that config.log under /Users/gmac/.frum/versions/.downloads/.tmpARRsm0/ruby-3.2.2, however the directory has been deleted and I have no way to investigate what went wrong. Seems like frum should either print the log, or leave the directory for followup. Any advice on how to resolve this?