backport 0.18:
    - update to 0.18.1.1 release (#591044)
    - gettext-0.17-autopoint-CVS-441481.patch,
        gettext-0.17-long-long-int-m4.patch gettext-0.17-open-args.patch, and
        gettext-xgettext-python-unicode-surrogate-473946.patch are upstream
    - use chrpath to avoid multilib rpath hell instead of complicated libtool
        hacks