Can you provide a bit more of the error output. In particular, which port is currently being built and the command that was being
executed. Are you installing the gimp port or gimp2? The gimp port is a meta port which installs nothing itself, it just
has dependencies which get built. gimp2 to the main application itself but without all the bells and whistles that port gimp
adds.
Please run (assuming it is the gimp that you are installing not gimp2)
sudo port -d install gimp
and report that back?
It should pickup where you left off and just show the final error.
Don't forget to use wiki formating, as I just did, so it can be easily read.
Have you succeeded in building on Tiger or are there outstanding problems there as well?
Thanks