I am using Homebrew exclusively (i.e. I don’t, and won’t, use MacPorts or Fink). I also want to keep manual installations to a bare minimum.1
… But how can I install GCC?
First of all, I’ve of course installed Xcode but the current version doesn’t ship with a decently up to date GCC (I need ata least 4.5, but would prefer the most recent one) – in fact, it doesn’t ship with a proper GCC at all (it only ships Clang) and that seems to be a problem for Homebrew …
I’m aware of a list of custom GCC and cross compilers but in fact all of those installations require an already installed GCC – at least,
brewing them fails with linker errors on Lion which I attribute to Clang, and
-use-gcc doesn’t work for obvious reasons.
brew doctor only mentions what I already know, that there is no GCC (4.2.x) installed.
1 I’ve previously mixed MacPorts, Homebrew and some manual installations and have ended up with a maintenance and versioning hell. I don’t want to go there again.