OS X Mavericks にすると gcc-4.2 がなくなるらしい

bundle installしたらエラーになった。

pinzolo@ileach [master] % bundle install --path vendor/bundle
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata>from https://rubygems.org/..
Resolving dependencies...
Using rake (10.1.0) 
Using i18n (0.6.5) 
Using minitest (4.7.5) 
Using multi_json (1.8.2) 
Installing atomic (1.1.14) 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /Users/pinzolo/.rbenv/versions/2.0.0-p195/bin/ruby extconf.rb 
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/Users/pinzolo/.rbenv/versions/2.0.0-p195/bin/ruby
        --with-atomic_reference-dir
        --without-atomic_reference-dir
        --with-atomic_reference-include
        --without-atomic_reference-include=${atomic_reference-dir}/include
        --with-atomic_reference-lib
        --without-atomic_reference-lib=${atomic_reference-dir}/
/Users/pinzolo/.rbenv/versions/2.0.0-p195/lib/ruby/2.0.0/mkmf.rb:431:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from /Users/pinzolo/.rbenv/versions/2.0.0-p195/lib/ruby/2.0.0/mkmf.rb:516:in `try_link0'
        from /Users/pinzolo/.rbenv/versions/2.0.0-p195/lib/ruby/2.0.0/mkmf.rb:814:in `try_run'
        from extconf.rb:26:in `
'


Gem files will remain installed in /Users/pinzolo/projects/detox/vendor/bundle/ruby/2.0.0/gems/atomic-1.1.14 for inspection.
Results logged to /Users/pinzolo/projects/detox/vendor/bundle/ruby/2.0.0/gems/atomic-1.1.14/ext/gem_make.out

An error occurred while installing atomic (1.1.14), and Bundler cannot continue.
Make sure that `gem install atomic -v '1.1.14'` succeeds before bundling.

mkmf.log見ろって言われたので見てみる。

pinzolo@ileach [master] % cat vendor/bundle/ruby/2.0.0/gems/atomic-1.1.14/ext/mkmf.log
"gcc-4.2 -o conftest -I/Users/pinzolo/.rbenv/versions/2.0.0-p195/include/ruby-2.0.0/x86_64-darwin12.4.0 -I/Users/pinzolo/.rbenv/versions/2.0.0-p195/include/ruby-2.0.0/ruby/backward -I/Users/pinzolo/.rbenv/versions/2.0.0-p195/include/ruby-2.0.0 -I. -I'/Users/pinzolo/.rbenv/versions/2.0.0-p195/include'  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT    -O3 -Wno-error=shorten-64-to-32  -fno-common -pipe conftest.c  -L. -L/Users/pinzolo/.rbenv/versions/2.0.0-p195/lib -L. -L'/Users/pinzolo/.rbenv/versions/2.0.0-p195/lib'      -lruby.2.0.0  -lpthread -ldl -lobjc "
sh: gcc-4.2: command not found
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

gcc-4.2がないらしい。

どうやら Mavericks にしたら、gcc-4.2がgccになるらしい。

sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2したら、解決した。