This is an Xcode 2.2.1 project file for the Perl Compatible Regular Expression (PCRE) library. It creates a universal framework if you should happen to need it. I know I did! As of present, this is only set up for PCRE 6.6.
Uncompress this into the pcre-6.6 source dir and then open the project using Xcode. Then build it! It is already set up to be a private (aka embedded) framework.
get pcre-6.6 sources (external)