support gcc-4.2 in /usr/local/bin about ruby-build

[jpayne]

Along the same lines, it'd be nice if we could just specify the path to the compiler when using ruby-build. I actually prefer MacPorts to Homebrew, so for me, gcc resides under /opt/local/bin.

I'm currently using RVM, but would prefer to use rbenv and ruby-build. One nice feature of RVM though is that I can set the compiler path in .rvmrc and forget it.

[sstephenson]

Does setting the CC environment variable not work for you?

[cowboy]

I'm also using adamv's homebrew-alt gcc duplicate recipe, except it's currently at version 4.6.

While setting the CC environment variable works for me, in order to keep my bash scripts easy to maintain I find myself duplicating much of the logic in your locate_gcc function to intelligently detect the gcc version, in order to set CC. I'd rather not hard-code that variable to point to the binary, because the version number changes from time to time.

Updating gccs=( /usr/bin/gcc-* ) to gccs=( /usr/local/bin/gcc-* /usr/bin/gcc-* ) in the locate_gcc function would fix this issue and eliminate redundant code.

[sstephenson]

Ah, I see. Yes, locate_gcc should search all the directories in your $PATH for gcc-* binaries.

[cowboy]

Even better!

[jpayne]

That would be great.