(Try) Building 2.8.0 for MacOSX

[Bengt Nilsson]

My platform is Mac OSX 10.4.8, dual G5.
I just downloaded wxWidgets 2.8.0 and tried to build src/ 
wxWindows.xcodeproj, and as always, it did not build.
I got the error:

/Users/bnilsson/Documents/Programming/Active/OpenSource/ 
wxWidgets-2.8.0/src/build/wxWindows.build/Development/static.build/ 
Script-4086C743063AB2FF00D4CD53.sh: line 2: /Users/bnilsson/Documents/ 
Programming/Active/OpenSource/wxWidgets-2.8.0/src/../distrib/mac/ 
pbsetup-sh: No such file or directory

Why is the xcodeproj included if it is not supported?