Build and install Brew apps that are x86_64 instead of i386?

Question

After this I:

brew install git

I'm doing it:

which git

which returns:

/ Usr / local / bin / git

Then I will do the following:

file / usr / local / bin / git

which returns:

/ usr / local / bin / git: Mach-O i386 executable

I need a brew to install as x86_64.

How to get brew to create and install my applications as x86_64?

brew --config

Returns this:

HOMEBREW_VERSION: 0.9 HEAD: 1c64a6624ed83ef17af6e98638b8165400e9e908 HOMEBREW_PREFIX: /usr/local HOMEBREW_CELLAR: /usr/local/Cellar CPU: quad-core 64-bit sandybridge OS X: 10.7.4 Kernel Architecture: x86_64 Xcode: 4.3.2 GCC-4.0: N/A GCC-4.2: N/A LLVM: build 2336 Clang: 3.1 build 318 MacPorts or Fink? false X11: /usr/X11 System Ruby: 1.8.7-357 Which Perl: /usr/bin/perl Which Python: /usr/bin/python Which Ruby: /Users/tdewell/.rvm/rubies/ruby-1.9.3-p194/bin/ruby 

Update: adding brew --env

 $ brew --env CC: /usr/bin/xcrun gcc-4.2 => /Developer/usr/bin/gcc-4.2 CXX: /usr/bin/xcrun g++-4.2 => /Developer/usr/bin/g++-4.2 LD: /usr/bin/xcrun gcc-4.2 => /Developer/usr/bin/gcc-4.2 CFLAGS: -Os -w -pipe -march=core2 -msse4 CXXFLAGS: -Os -w -pipe -march=core2 -msse4 MAKEFLAGS: -j4 

Answer 1

It was agreed.

I installed Xcode 4.3.2 through the App Store and installed the command line tools, but I already had Xcode 3.1 installed many years ago. I googled around and found the following commands:

 sudo /Developer/Library/uninstall-devtools –mode=all sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer 

This healed my problem, and after I did this, the compilers changed to brew:

 $ brew --env CC: /usr/bin/clang CXX: /usr/bin/clang++ => /usr/bin/clang LD: /usr/bin/clang CFLAGS: -Os -w -pipe -march=native -Qunused-arguments CXXFLAGS: -Os -w -pipe -march=native -Qunused-arguments MAKEFLAGS: -j4 

The brew installation is now much better:

 $ which git /usr/local/bin/git $ file /usr/local/bin/git /usr/local/bin/git: Mach-O 64-bit executable x86_64 

Answer 2

Try

 xcode-select --install