.) On the automake branch, I still get the (system-level) segfaults with my hand-built compilers.
What are the errors?
Latest automake branch is running cleanly for me (in dbg, need to try the others). Anythign special you guys are feeding to $LIBMESH_RUN or $LIBMESH_OPTIONS?
Also, did you rename the libtool executable (e.g. when macports builds autotools, it installs libtool as glibtool), because there is a native libtool installed that's Apple's thing and I'm not sure if glibtool is using it or not.