Add JohnTheRipper, a fast password cracker
docker: add xz to PATH, make importing from archives work
suitable clang stdenv
wip libc++
livcxx build
X11 build purity
build ghc with older binary where possible
mark nixUnstable as broken on darwin
stick darwin-specifics in a conditional
libunwindNative for darwin only
missing an argument
libcxxabi needs coreutils for `cp -d`
fix boost build with clang
fix some packages on darwin
get rid of nasty CC stuff
build nix head successfully
fix even more clang builds
stop copying everything into the store
get rid of nasty CC stuff
remove gccApple from extra packages