Message 69823 - Python tracker

Yet another version: configure-patch-3381-2.txt is a slight enhancement 
of the first version.

This version also moves the calculation of MACOSX_DEPLOYMENT_TARGET a 
lot 
earlier in configure.in, to ensure that the right value is active 
whenever
the compiler is used.

This turns out to be necessary to build using the 10.4 SDK on OSX 10.5.

BTW. Feel free to commit if the patch works for you, I'm rather swamped 
at work and won't be able to test on 10.4 anytime soon.