Created attachment 534578 [details] emerge --info but regardless your hardware/software xephem will fail without libXp before libXp was removed from overlay, you could unmask it, merge it, and then xephem will bulid correctly libXp is not in listed in xephem's ebuild dependencies, but you will still always get /usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lXp collect2: error: ld returned 1 exit status make: *** [Makefile:189: xephem] Error 1 like portage wasn't made aware that libXp was a dependency of it. steps to reproduce are simple - just emerge xephem -- without libXp installed a month or two ago the workaround was simple, just unmasking x11-libs/libXp and manually emerging, but now i think x11-libs/libXp has finally been removed
*** This bug has been marked as a duplicate of bug 650404 ***