Hi, as you might already have noticed, I fixed a few things on the build system and added an autodetection for the GCC path. It is still commented out as it uses the Command rule I hacked into Jam 2.4. and thus won't work with other Jam versions. The hack can be found here (sources as well as executables for x86 BeOS and Linux, and SPARC Solaris): http://cs.tu-berlin.de/~bonefish/download/jam-2.4-2002.06.30.zip Give it a try and tell me, if you like it. Oh, right, the Command rule: It passes each list element supplied to it to a shell, gathers the commands' output and returns it as a list split at line bounds. CU, Ingo PS: Ryan, didn't you want to send me your changes to Jam?