[Bug c++/126577] [16/17 Regression][modules] Corrupt CMI with -fmodule-mapper, re-exported partition, chrono alias and unique_ptr

"ppalka at gcc dot gnu.org via Gcc-bugs" <[email protected]> Sun, 02 Aug 2026 13:57:01 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126577

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
                 CC|                            |ppalka at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2026-08-02

--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
16.1 preprocessed sources are ok when compiled with latest trunk / 16 release
branch, so it might be that a libstdc++ header change is exposing a latent
modules bug.