This was not here when I was editing my PR. Anywho...

I just created the pull request for the last file you mention. I will update it so that it includes the other hardcoded paths.

See #29796

Thanks @delasteve

We're aware of this, of course. The most helpful thing that people can do at this point is just have a little patience while myself and the other maintainers decide what to do. Thanks.

/cc #20564, from last June

Is there any immediate fix for this? After switching to Yosemite this afternoon, my brew was broken:

 ->  brew
/usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory
/usr/local/bin/brew: line 23: /usr/local/Library/brew.rb: Undefined error: 0

The most helpful thing that people can do at this point is just have a little patience while myself and the other maintainers decide what to do. Thanks.

So Apple dropped this little gift in /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin13/rbconfig.rb:

  CONFIG["includedir"] = (ENV['SDKROOT'] || (File.exists?(File.join(CONFIG['prefix'],'include')) ? '' : %x(xcode-select --print-path >/dev/null 2>&1 && xcrun --sdk macosx --show-sdk-path 2>/dev/null).chomp)) + "$(prefix)/include"

This causes a fork bomb under superenv on Xcode-only systems, because (1) this invokes the first xcrun in PATH, (2) our wrapper is first in PATH, (3) our wrapper is written in Ruby, (4) ruby > 1.8 loads rubygems by default, (5) rubygems loads rbconfig.

I need to rewrite the xcrun wrapper in shell or otherwise work around this issue before we can flip the switch on this. In the meantime here is a patch that would do it: https://github.com/jacknagel/homebrew/compare/rb2

(Note that we strongly advise against upgrading to the 10.10 preview at this time unless you are developing for that platform.)

(Edited bug title)

Thanks @jacknagel. I'm back in business after applying and installing the command line tools from the ADC: http://adcdownload.apple.com/Developer_Tools/command_line_tools_os_x_10.10_for_xcode__june_2014/command_line_tools_for_osx_10_10_june_2014.dmg

This is related: #29809.

@jacknagel Thank you for your quick fixes in the rb2 branch. I just applied them to my system and it's happily brewing again.

@lukeman Installing the command line tools did the trick for me. Thanks!

I solved temporarily by copying the ruby 1.8 Version inside Ruby.framework from a Mavericks backup. But this only returned it to functional state; doesn't fix the problem. I also experienced the fork bomb problem when trying to coerce it to run under Ruby 2.0.

@jacknagel thanks a lot! Your fork/branch makes it work on 10.10.

Here's a little gist with the modified launcher/installation script that points to that branch to install it on 10.10 easily. https://gist.github.com/jpincheira/bd3698fee46735fac252

Wow that was fast.

@jacknagel Doesn't your commit still need the xcrun changes form your fork to work on Yosemite?

👍 works like a charm!

Anyone able to install ruby 1.9.2-p290 with this. I am able to install ruby 2.1 with RVM. Needs help.

@bhushangahire That issue is not related to this; please file a new issue with details on your problem.

If you're having problems with RVM, though, you'll have to speak to the RVM develoeprs.

Sure thanks I thought if anyone able to solve it. This is the only active thread I found on 10.10

https://gorails.com/setup/osx/10.10-yosemite Helped me :)

@radius314 Please don't provide instructions for users to mess around with system files like that. It will likely break Homebrew and other software in future. Thanks!

@j-mcnally Please don't instruct people on our issue tracker to do things that will cause them to file more issues on our issue tracker.