https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117215
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|UNCONFIRMED |RESOLVED
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
...............
nagisa/include/nagisa/stl_freestanding/utility/./detail/./environment.h
................
nagisa/include/nagisa/stl_freestanding/utility/./detail/../environment.h
This is not exactly a bug but the issue is you have some files with `#pragma
once` which are exactly the same contents which GCC decides is the same (from a
definition of the once it is correct). So you should stop using `#pragma once`
if you have files which are the same contents.
In this case environment.h is:
```
#pragma once
#include "../environment.h"
```
But that is a few different environment.h files too.
*** This bug has been marked as a duplicate of bug 52566 ***
