I note that "uname -m" gives x8664 on Debian, Fedora, and OSX, but arch give x8664 on Debian and Fedora, but i386 on OSX. This is annoying. I have the 64-bit DMD, druntime, and Phobos. Why is OSX arch delivering i386 on a perfectly good 64-bit system, witness the "uname -m" result.