Blog.ubrious » gems http://blog.ubrio.us An Ordinary Web Developer's Blog Thu, 19 Jan 2012 00:44:59 +0000 http://wordpress.org/?v=2.8.1 en hourly 1 OSX, RubyGems and cross-thread violations in rb_gc http://blog.ubrio.us/nix/osx-rubygems-and-cross-thread-violations-in-rb_gc/ http://blog.ubrio.us/nix/osx-rubygems-and-cross-thread-violations-in-rb_gc/#comments Thu, 20 Nov 2008 15:37:40 +0000 Rob Hurring http://blog.ubrio.us/?p=104 I recently decided to migrate away from OSX’s default ruby install yesterday and noticed a few quirky hangups. Firstly, for some reason, and I’m not sure if it is just me or not, OSX’s default $PATH variable is putting /usr/local/bin AFTER /bin making your local installs not enabled by default. (Editing the /etc/paths didn’t do the trick so I manually added it to PATH).

The installation went easily for both ruby gems and ruby, but I decided to take a ’short cut’ and copy all my gems from /Library/Ruby/Gems into my /usr/local/lib directory which started raising all kinds of errors — this one, in particular was obnoxious.

[BUG] cross-thread violation on rb_gc()

Luckily, all that means is that I copied over gems which were compiled against the standard OSX ruby version and not the new one. This was a little script I wrote which will show you which gems need to be re-compiled. Just cd over to your /usr/local/lib/ruby/gems/1.8/gems directory and run:

gems $>ls -1 **/**/*.bundle|ruby -pe '$_.gsub! /\-.*/, ""'|uniq

to get a list, or pipe that into $> sudo gem install and that should clear up those gc issues.

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