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