app-office/magicpoint has multiple build failures https://bugs.gentoo.org/911911 https://bugs.gentoo.org/729526 https://bugs.gentoo.org/913157 https://bugs.gentoo.org/945069 It's written in K&R C and has multiple build failures even with -std=gnu99 And it also uses Imake as build system, that caused some build failures and needed workaround on it's own. Reproducible: Always
fwiw it mostly compiles and works; the elisp files require a lex binding cookie for modern versions of emacs, and there were warnings, but it does work. it should not be excluded. maintainer-wanted, otoh, was reasonable.
The linked bugs show it not building in all configurations.