As of Xcode 4.2 Apple have stopped bundling GCC with it, shipping only the (mostly) compatible llvm-gcc binary instead. The suggested fix is to install GCC using the osx-gcc-installer project. However, I wanted to build and install it from source, which apple provides at http://opensource.apple.com/.

I've had a dream for a while. A simple webapp that takes the last tweet in a conversation and outputs that conversation in chronological order on a page you can link to forevermore. Occasionally I'll google to see if anything new's turned up, but they all seem to do far more, require the start and end tweets or are covered ...

Imagine you've got a blogging app and it's currently generating URL paths like posts/10 for individual posts. You decide the path should contain the post title (in some form) to make your URLs friendlier when someone reads them. I know I certainly prefer to read http://caiustheory.com/abusing-ruby-19-and-json-for-fun vs http://caiustheory.com/?id=70. (That's a fun blog post if you're into (ab)using ruby occasionally!)

If you've not heard of it, MacRuby is an implementation of Ruby 1.9 directly on top of Mac OS X core technologies such as the Objective-C runtime and garbage collector, the LLVM compiler infrastructure and the Foundation and ICU frameworks. Basically means you write in Ruby using Objective-C frameworks, and vice versa. It's pretty damn cool to be honest!

Ran into a problem today where I have a class with a few attributes on it, but I only want a certain three of those attributes to appear in the YAML dump of a class instance.