While dealing with setting up my new MacBook Pro with Apple Silicon M1 Pro chip I chose not to use the image from my older MacBook Pro 2015. I decided to install everything I need from scratch.
I encountered the problem with uninstalling brew packages and all their dependencies that are not needed by another packages. Maybe it is not a problem, but just nice to know practice.
Firstly I thought I will need gcc so I typed:
➜ ~ brew install gcc
Installing gcc package resulted with installing a few dependences under the hood
➜ ~ brew deps --tree --installed gcc gcc ├── gmp ├── isl │ └── gmp ├── libmpc │ ├── gmp │ └── mpfr │ └── gmp ├── mpfr │ └── gmp └── zstd
After a while I decided I don’t need gcc so I installed it with
➜ ~ brew uninstall gcc
But some dependencies were not removed along with gcc. The best suggestion I found (here) to list them and remove is to use
brew autoremove command.
With option -n you can list unneeded dependencies that could be uninstalled:
➜ ~ brew autoremove -n ==> Would uninstall 4 unneeded formulae: isl libmpc mpfr zstd
brew autoremove to uninstall them
➜ ~ brew autoremove ==> Uninstalling 4 unneeded formulae: isl libmpc mpfr zstd Uninstalling /opt/homebrew/Cellar/zstd/1.5.1... (31 files, 2.4MB) Uninstalling /opt/homebrew/Cellar/isl/0.24... (73 files, 7MB) Uninstalling /opt/homebrew/Cellar/libmpc/1.2.1... (12 files, 415.7KB) Uninstalling /opt/homebrew/Cellar/mpfr/4.1.0... (30 files, 5.2MB)
Thanks for reading. Do you know any better solution? Don’t hesitate to leave a comment!