The subject line says it all.
I just completed a build, test, and install of PostgreSQL 8.1.4 on an Intel Mac with OS 10.4.8. Every single step executed flawlessly, and all 98 tests passed, running the regression tests.
I've got a suggestion for the documentation (INSTALL file). I may be the only person in the world who does everything backwards, but my first attempt at regression tests failed because I had already started the postmaster. I know that's pretty stupid, but I had to scratch my head for a few minutes when it said initdb failed, and left me no clue as to why. You might add a note in with the instructions for regression testing to shutdown the server before running the tests. It does say, after all, that you can run them any time!
Douglas Toltzman
(910) 526-5938
p.s. I noticed I am a build behind, but I would think that 8.1.5 would give similar results.