Right now this is done through the gcc@5 formula.
See 9692318ca6/Formula/gcc%405.rb (L33)
This is fragile because when we will migrate to gcc@11
we have to think about migrating the installation from one gcc formula to another..
Also, not having the right glibc version results in a non-functional brew
installation on an older Linux: the glibc installation needs
to be done by brew, and not by a workaround in a specific formula
Co-Authored-By: Mike McQuaid <mike@mikemcquaid.com>
Co-Authored-By: Bo Anderson <mail@boanderson.me>
Co-Authored-By: Shaun Jackman <sjackman@gmail.com>
The main class you should look at is the {Formula} class (and classes linked from there). That's the class that's used to create Homebrew formulae (i.e. package descriptions). Assume anything else you stumble upon is private.