gettext

3a812ce8 - build: Avoid failing a configure test due to CFLAGS="-Werror".

build: Avoid failing a configure test due to CFLAGS="-Werror". Reported by Florian Weimer <fweimer@redhat.com>. * gettext-runtime/m4/intdiv0.m4 (gt_INTDIV0): In the test program, include <unistd.h>, for the declaration of _exit().