This is a followup to #4407: When we build R on OSX we per default build extensions that depend on OSX specific frameworks, namely aqua dependent code. That FrameWork? ends up pulling in Apple's libpng.dylib which is incompatible with the one we build. Consequently the build of R fails. The spkg at
http://sage.math.washington.edu/home/mabshoff/release-cycles-3.1.2/alpha3/r-2.6.1.p18.spkg
disables aqua support for R just like the 64 bit OSX build. The spkg builds fine on OSX 10.4 and 10.5 and passes doctests.
Cheers,
Michael
Cheers,
Michael