* tools/dev/unix-build/Makefile.svn: Add gettext support to my custom
   build script, which is also used on the bb-openbsd bot. My own svn
   development builds now support i18n so I can test related code paths.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1577117 13f79535-47bb-0310-9956-ffa450edef68