But before I proceed, you should go back and read that article for reference on the C compilers, gcc, llvm, and all that jazz. In the article linked above, I explained that all you had to do was download and install Apple’s Xcode IDE, and everything would be as expected.
Recently, professor Ulf von Barth of Lund University in Sweden alerted me to the fact that the mechanism has changed yet again. This article, “ OS X Lion for UNIX Geeks: Installing the C Compilers,” provided all the background. Here’s how to do it with the latest Xcode and Lion.īack in August, right after OS X 10.7, Lion, shipped, I wrote about how a new installation does not have the C compilers in the expected place, /usr/bin. Plus, Apple has once again changed the way you install those compilers in /usr/bin.
Out of the box, OS X Lion doesn’t have the command line C compilers.
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