These are Mac OS X frameworks and Unix software for much of the UNIX stuff in my [old] build instructions. While they are aimed at MapServer, GRASS, QGIS and other GIS software, they are intended to be reusable for other software.
Mac OS X 10.4.10 is the minimum requirement. Current packages are for Tiger & Leopard (they do not run on Panther) and include both 32bit and 64bit binaries (64bit only runs on Leopard and above, with an appropriate 64bit Mac). All packages are Universal for PPC/Intel Macs.
I can help with problems and questions about installation problems and use of my builds of this software. For general use questions, see their respective sites' support resources.
Some notes for developers to make use of the frameworks, and libraries in the other software.