我正在做一些网络开发，翻译引擎需要 gettext。我应该强制链接它吗？
$ django-admin.py makemessages -l es
CommandError: Can't find xgettext. Make sure you have GNU gettext tools 0.15 or newer installed.
$ brew install gettext
Warning: gettext-0.18.3.2 already installed
$ brew link gettext
Warning: gettext is keg-only and must be linked with --force
Note that doing so can interfere with building software.