https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91046
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- There can't be any debug info issues specific to empty translation units, given that _Static_assert (1, ""); is valid as a translation unit in ISO C, and doesn't declare anything that would get debug info. As an extension the support for empty translation units should be documented, but it would be entirely inappropriate to warn about them by default (it's perfectly natural to have an empty translation unit if e.g. it has preprocessor conditionals and is only empty under some conditions).
