Just wanted to share some notes on compiling and getting Pymol 1.3.x running on OS X Snow Leopard. Before proceeding, you'll of course need the XCode SDK which comes supplied with the OS X cd's or downloaded through apple's developer site.
For some reason, the included freetype2 library is insufficient even though the compilation flags correctly point to the library's path (ext/include/freetype2). The compilation fails with the following message (truncated):
In file included from layer1/TypeFace.c:25:
/usr/X11R6/include/ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or directory
The fix is to prepend the build step with the following CFLAGS environment variable like so which points to the system default X11 library:
CFLAGS="-I/usr/X11R6/include/freetype2" python setup.py build
You can then proceed with the installation, followed by the secondary setup2.py commend as noted at the end of the build step.
(2) Additional library:
A required library, Pmw, isn't included with the SVN trunk, so you'll need to download it from the following site:
Unpack; dive into the src folder and issue
python setup.py build
python setup.py install
All should work.