Another ^nix -> Windows package system is the pacman port available in msys2: http://sourceforge.net/projects/msys2/

msys2 has an impressive package list [1] and is almost [2] an amazing solution for mixed-platform projects.

[1] https://github.com/Alexpux/MINGW-packages) [2] The one caveat is that it is still susceptible to the Cygwin BLODA problem whereby under certain conditions and software combinations, Windows becomes dangerously unstable after too many calls to fork.