I've just succesffully built 7.4 on OpenBSD 3.4 GENERIC#0 macppc.
test needed adjusting kernel variables as usual.
*but*
shmmaxpgs and semmap doesn't seem to exist on my OpenBSD 3.4 GENERIC#0
macppc.
*and*
13 out of 93 tests failed.
Are you interested in more details ?
Anyway, thanks you for your great work.
Ph.L.