Installing ruby 1.9.3 on Mac OSX 10.8.2

Question

I am trying to install Ruby on my new Mac, but I'm having some issues, and was wondering if anyone can help?

The main error is:

Right now Ruby requires gcc to compile, but Xcode 4.2 and later no longer ship with gcc.
Instead they ship with llvm-gcc (to which gcc is a symlink) and clang, neither of which are
supported for building Ruby. Xcode 4.1 was the last version to ship gcc, which was
/usr/bin/gcc-4.2.

I tried to solve the error using the advice in this post "Cannot install ruby-1.9.2 in Mac OSX 10.8.1 due to symlink error", but even after installing gcc via homebrew, I still get the aforementioned error.

When I type gcc - v, I get the following message:

Using built-in specs.
Target: i686-apple-darwin11
Configured with: /private/var/tmp/llvmgcc42/llvmgcc42-2336.11~67/src/configure --disable-checking --enable-werror --prefix=/Applications/Xcode.app/Contents/Developer/usr/llvm-gcc-4.2 --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-prefix=llvm- --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin11 --enable-llvm=/private/var/tmp/llvmgcc42/llvmgcc42-2336.11~67/dst-llvmCore/Developer/usr/local --program-prefix=i686-apple-darwin11- --host=x86_64-apple-darwin11 --target=i686-apple-darwin11 --with-gxx-include-dir=/usr/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)

Lastly, I checked my /usr/bin folder, and I see a gcc-4.2 unix executable file that is about 104KB. Is this what I should have?

See: http://stackoverflow.com/questions/12604119/install-ruby-with-mountain-lion-xcode-4-5-and-rvm — Diego Basch, Dec 27 '12 at 04:08
Thank you! I followed their instruction, and installed gcc (i think), but it still doesn't work — Dan Tang, Dec 27 '12 at 04:11
Are you installing ruby via homebrew, or making it on your own? I've installed ruby-1.9.3 with homebrew with no issues. — ceyko, Dec 27 '12 at 04:12
I'm using RVM, and everytime I try rvm -install 1.9.3, they can't find gcc — Dan Tang, Dec 27 '12 at 04:33

Telemachus · Accepted Answer · 2013-09-07T12:07:07.807

Try this to let rvm know which gcc to use:

CC=/usr/bin/gcc-4.2 rvm install 1.9.3

Or, if you want to use the Homebrew-installed gcc:

CC=/usr/local/bin/gcc-4.2 rvm install 1.9.3

It depends on where the gcc-4.2 interpreter is.

Two alternatives:

rvm install 1.9.3 --with-gcc=clang

Or use ruby-build.

EDIT September 7, 2013: Another alternative that I'm liking quite a lot for installing Rubies is ruby-install. It's in the spirit of the same author's chruby. Simple and gets the job done well.

score 1 · Answer 2 · answered Sep 06 '13 at 13:28

1

I do not have the reputation yet to make a comment but i just wanted to note that based on Telemachus comment this worked for me rvm install 1.9.3 --with-gcc=clang

im running os x 10.8.4

answered Sep 06 '13 at 13:28

todd

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score 0 · Answer 3 · edited Dec 27 '12 at 15:14

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you should install xcode command line tool first, you can find in xcode preferences' download tab.

enter image description here

then install homebrew, it's a package manager like yum in centos, you can use that to install git etc.

then install rvm, then use rvm install ruby.

edited Dec 27 '12 at 15:14

Xiujun Ma

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answered Dec 27 '12 at 08:51

megayu

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He was able to install `gcc` with Homebrew. I'm pretty sure he has the Command Line Tools - otherwise, that wouldn't have been possible. – Telemachus Dec 27 '12 at 22:49

Installing ruby 1.9.3 on Mac OSX 10.8.2

3 Answers3