Package jam-2.5-2

Jam is a software build tool that makes building simple things simple and building complicated things manageable. Jam is a very good solution in the following situations: * Conventional C/C++ compile-and-link builds. * Building from the same sources, according to the same dependencies, on a variety of platforms. * Distributing self-contained build steps onto multiple processors. The version of jam included with Mac OS X has been heavily modified for use with Project Builder. This is the standard UNIX distribution.