Button: A fast, correct, and elegantly simple build system.

[Dicebot via Digitalmars-d-announce]

Can it be built from just plain dmd/phobos install available? One of
major concernc behind discussion that resulted in Atila reggae effort is
that propagating additional third-party dependencies is very damaging
for build systems. Right now Button seems to fail rather hard on this
front (i.e. Lua for build description + uncertain amount of build
dependencies for Button itself).