我尝试使用brew在mac上使用brew install gcc44安装gcc 4.4，但是我收到了此错误
Error: No available formula with the name "gcc44"
==> Searching for a previously deleted formula...
Warning: homebrew/core is shallow clone. To get complete history run:
git -C "$(brew --repo homebrew/core)" fetch --unshallow
Error: No previously deleted formula found.
==> Searching for similarly named formulae...
==> Searching local taps...
Error: No similarly named formulae found.
==> Searching taps...
==> Searching taps on GitHub...