How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

xcode macos gcc

I have install Mountain Lion (Mac OS X 10.8) and now gcc doesn't seem to be available anymore. I've also installed Xcode 4.4 so there is no more /Developer directory.

I need gcc both for mac ports and for ruby gems (that have native extensions).

Does Xcode 4.4 include gcc or is there a way to install gcc?

Similar, more recently: Lion — GCC not found, but Xcode is installed — Ask Different

The answers on this thread all fail to make one very important point: they are not installing GCC, but rather Clang/LLVM pretending to be GCC. This is not a trivial difference, for reasons that I'd hope I don't have to explain.

Steve

Update:

You can now just run the following command from your terminal:

xcode-select --install

Starting with Xcode 4.3 - you must now manually install command line tools from Xcode menu > Preferences > Downloads.

https://i.stack.imgur.com/C7wOI.png

Alternatively, there are stand-alone installation packages both for Mountain Lion (10.8) and for Mavericks (10.9).

This package enables UNIX-style development via Terminal by installing command line developer tools, as well as Mac OS X SDK frameworks and headers. Many useful tools are included, such as the Apple LLVM compiler, linker, and Make. If you use Xcode, these tools are also embedded within the Xcode IDE, and can be installed on your system using the Downloads preferences pane within Xcode 4.3 and later. This package requires Mac OS X 10.7.3 or later.

When Steve says Preferences, he's talking about the Preferences dialog box which can be found in the Xcode menu at the upper left when you have the XCode window active.

@marshall - if you update to Xcode 4.4 which was also released yesterday, you should be good to go - no? Seemed to work for me just fine.

@marshall: Here's a link to the 10.8 package: developer.apple.com/downloads/…. I just submitted an edit to the answer that uses the correct link.

Doesn't this actually install llvm-gcc instead of gcc?

When i ask for gcc version, I get this as a return: $ /usr/bin/gcc -v Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1 Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix So am I using gcc?

Volcanic

I found that after upgrading from Lion my install was failing because it was looking for GCC in /usr/bin/gcc-4.2. Now the default installation path is /usr/bin/gcc.

My error looked like this:

make: /usr/bin/gcc-4.2: No such file or directory

A symlink will sort out the issue:

sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2

my gcc-4.2 was actually just in /usr/local/bin, this worked for me: sudo ln -s /usr/local/bin/gcc-4.2 /usr/bin/gcc-4.2

Thanks, this was the key to a 10.7 -> 10.8 migration assistant breakage of my commandline tools.

sra

Just paste this into terminal:

export PATH=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:$PATH

I hope that helps!

If you don't want to run this every time you load a new terminal window, add this line to your ~/.bashrc or ~/.zshrc

or just add it to your /etc/paths file architectryan.com/2012/10/02/…

idonnie

pre-1.9.3 Ruby on Mountain Lion

Pre-requisites

Xcode 4.4, 
Xcode Command Line Tools
Homebrew
XQuartz 2.7.2 or later.
rbenv/ruby-build or RVM.

Install GCC

Note, the Xcode Command Line Tools do not include GCC, they include LLVM-GCC. Same-same, but different.

$ brew tap homebrew/dupes
$ brew install apple-gcc42

Add the following to your ~/.profile or equivalent:

export CC=/usr/local/bin/gcc-4.2

And reload your shell before attempting the install commands below.

Install RVM

CFLAGS="-I/opt/X11/include" rvm reinstall ree

Install Ruby

Prefix the install command with CFLAGS="-I/opt/X11/include"

Then to set your new ruby as default:

user$ rvm use 1.9.2 --default

Then check your ruby version:

user$ ruby -v

I've found your post very useful, as like as this one, concerning OpenSSL dependency when installing Ruby 2.0.0 via RVM: apple.stackexchange.com/questions/83885/…

Seriously, one among the most helpful answers I've come across lately. Worked perfectly. Exactly what I was looking for. Wish I could upvote more. Thanks!

This is only answer with the brew recipe for the real gcc, which is what the question title seems to ask for. Thanks!

Community

For users who can download from Apple a build of Xcode, but not the command line tools

An accepted answer to a comparable question suggests kennethreitz / osx-gcc-installer. In that 'OSX GCC Installer' area, the first of two options is pre-built binaries — for Snow Leopard and for Lion, but not for Mountain Lion. Considering what's included, I should not recommend using that project's GCC-10.7-v2.pkg after installing version 4.4 of Xcode on any build of 10.8.

The more relevant option is build your own, with reference to Apple open source for Developer Tools.

Sources for GCC, compatibility with 10.8

Apple Open Source for the most recently published Developer Tools 4.3 is without GCC. The source for GCC in the 4.1 area may be too old for use with 10.8.

GCC home page for the most recent release.

Build status for GCC 4.7 links to results for x86_64-apple-darwin10.8.0 …

briangonzalez

Apple provides an .mpkg installer for the Command Line Tools (CLT), but they don't normally expose the link. It includes GCC. You can install it without downloading/installing XCode.

Download Command Line Tools w/ GCC here.

Interestingly, I installed this, but see no resulting gcc version changes in /usr/bin. Just the LLVM versions. Wonder if they install to a separate location now?

Looks like you have to add @roger's link to the XCode directory to your path.

@JohnMetta does it make an Xcode directory even if you haven't installed Xcode?

You know, I'm uncertain about that b/c I had XCode installed already, which might be an issue. I had 1.9.x working fine and was using this to try to install 1.8.7 under rvm, but I just went with 'rvm use system' so am now in the "gave up" crowd.

Fair enough. Perhaps I'll try and report back.

stites

You can compile it yourself with this Makefile. If you want to save yourself 2-5 hours, I created a signed installer package with GCC 4.7.2 for Mac OSX Mountain Lion which you can download here.

nbs

You can download the installer(.pkg file) lattest version of GCC for Mountain Lion from this site. You simpy need to download and install it.

https://github.com/kennethreitz/osx-gcc-installer/downloads

DaveR

I'm using OS X 10.9 Mavericks. I only happened to type gcc -v. The system downloaded gcc immediately. Installation completed without Xcode being installed at all. Testing "Hello, world!" works.

How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

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