libdrm is sitting at 2.4.109-1 and it's 32bit variant should be as well as seen here https://archlinux.org/packages/?q=lib32-libdrm but instead for Artix, it's for some reason sitting at 2.4.108-1, a version behind, making it impossible to compile lib32-mesa-git at the moment, as it wants the latest version of libdrm.
Fix is on the way to mirrors. Thanks