[arch-general] Xulrunner as makedepend while eclipse is installed

Because of [ 0 ] now eclipse and xulrunner packages conflict. I maintain two AUR packages [ 1 ] that need xulrunner at build time and I also have installed eclipse. I know building that packages in a clean chroot can be a solution but I'm afraid that is not what I can assume they will do about all users of the mentioned packages. Any idea of what could be done? [ 0 ] https://bugs.archlinux.org/task/28724 [ 1 ] https://aur.archlinux.org/packages.php?O=0&K=firetray-svn&do_Search=Go