Support for SunOS 4.x was removed in Emacs 23 but some cruft was left behind. * lib-src/pop.c [sun]: Remove no-longer-needed include. * lwlib/xlwmenu.c (SUNSO41): Remove.
This directory contains the source code for the architecture-dependent
files that go in ${archlibdir}. At present, these are mostly utility
programs used by GNU Emacs.