[Bug preprocessor/118725] libcpp build failure with NLS enabled

[judge.packham at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118725

--- Comment #5 from Chris Packham <judge.packham at gmail dot com> ---
I'll add that it seems to only happen with gettext-0.23.1. If I pin the config
to use gettext-0.22.5 the build succeeds.