Bradley, Something still is as astray with your build configuration. Look at my last set of results.
http://gcc.gnu.org/ml/gcc-testresults/2006-08/msg01333.html I only have 28 unexpected failures for g++ at -m64 and you have 1350. Likewise for libstdc++ at -m64, I only have 6 unexpected failure whereas you have 1668. Try building some of the g++ testcases manually and see what the errors are. Assuming you really have the ld64 from Xcode 2.3 installed I am guessing you have some bogus copies of libstdc++ laying around in your path. Jack