https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86360
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- More than that, I don't think it's allowed to. See 6.7.4 p7 in the C11 standard. "An inline definition does not provide an external definition for the function, and does not forbid an external definition in another translation unit."
