FredBezies [1] filed a orphan request for windows-xp-themes-git [2]: Maintainer doesn't ask to a simple modification which helps building package.
And by the way, you cannot build it :( If you orphan it, I'll adopt it with pleasure. [1] https://aur.archlinux.org/account/FredBezies/ [2] https://aur.archlinux.org/pkgbase/windows-xp-themes-git/
