[Bug target/125451] [16/17 Regression] wcwidth broken with gcc 16 on cygwin

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125451

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |16.2
            Summary|wcwidth broken with gcc 16  |[16/17 Regression] wcwidth
                   |on cygwin                   |broken with gcc 16 on
                   |                            |cygwin
             Target|cygwin                      |x86_64-cygwin

--- Comment #11 from Drea Pinski <pinskia at gcc dot gnu.org> ---

So if we look at the wcwidth declaration:
typedef short unsigned int wchar_t;
int wcwidth (const wchar_t);


So the ABI for x86_64 is the upper bits here are unspecified. So the question
is wcwidth actually expected unsigned int or unsigned short?