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 recently came across the at(1) command, and wondered why it wasn't executing jobs I gave it on my machine. Had a poke around the man pages, and discovered in atrun(8) that by default launchd(8) has the atrun entry disabled.

On a couple of occasions now I've wanted to read from STDIN into an Objective-C command line tool, and both times I've had to hunt quite a bit to find the answer because nothing shows up in google for the search terms I used. "Objective-c read from stdin" and "objc read stdin" both turn up results ranging from using NSInputStream ...

Recently I ran into an issue where I was working on a project which had files I wanted git to ignore, but I didn't want to commit a .gitignore file into the project. In case you don't know, any files matching a pattern in .gitignore in a git repository are ignored by git. (Unless the file(s) have already been committed, ...

Backstory: Got myself a first generation iPhone second hand and unlocked it to work on my existing T-Mobile (Official iPhone network in the UK is O2.) Noticed after a week or so of owning it that when you change the volume on the phone, the bezel that comes up says "ringer" across the top. But when you have headphones plugged ...