[arch-general] How to suppress --noconfirm when building with makechrootpkg

Hi all, When trying to build libreoffice-extension-writer2latex [1] using makechrootpkg I noticed that when several alternatives are provided for a specific package, say libreoffice-common, pacman always chooses the first one. This is due to the option --noconfirm that is passed in the chain makepkg -> pacman. This sounds reasonable, but how do I test a package against another alternative (e.g. libreoffice-still-common instead of libreoffice-fresh)? I know I can install packages using -I, but that's rather cumbersome when trying to build against several alternatives. Regards, Marcel [1]https://aur.archlinux.org/packages/libreoffice-extension-writer2latex/