dos1 [1] filed a request to merge allegro5-git [2] into allegro-git [3]: Corresponding community package is called "allegro"
[1] https://aur.archlinux.org/account/dos1/ [2] https://aur.archlinux.org/pkgbase/allegro5-git/ [3] https://aur.archlinux.org/pkgbase/allegro-git/
