question about ports that need manual downloads

[Mark Linimon]

Right now several of these ports show up as creating bento build
errors.  At one time I thought that I had seen some ports that were
set up to go ahead and try to build on bento if the distfile had
already been loaded onto it, but I can't find any right now.  Can
someone point me to an example?  Or is this just a case where
the meaning of the IGNORE Makevar is overloaded to mean
"don't build unless distfile exists" as well as "don't build at all"?

mcl