http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47756
Olaf van der Spek <olafvdspek at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|INVALID |--- --- Comment #4 from Olaf van der Spek <olafvdspek at gmail dot com> --- Comment 2 contains a clear definition. If "" is used but you don't find the file after looking relative to the current file (but before looking in the include path) a warning should be issued.