[aur-general] PKGBUILD review: gcc10

I've pushed GCC 10 to the AUR: https://aur.archlinux.org/packages/gcc10 It's based on the older GCC 9 PKGBUILD [1] with some elements from the GCC 11 PKGBUILD [2]. It builds, installs, and seemingly runs OK, but it's something with potential for hidden gotchas so if someone could cast their eyes over it I'd appreciate it. :) (e.g., should it include any of the other backends like Ada?) J [1] https://aur.archlinux.org/packages/gcc9 [2] https://github.com/archlinux/svntogit-packages/tree/packages/gcc/repos/core-...