Bug#1097185: libfile-mmagic-xs-perl: ftbfs with GCC-15

[Adrian Bunk]

On Tue, Sep 16, 2025 at 06:11:13PM +0000, Victor Seva wrote:
> Some improvement, after https://salsa.debian.org/perl-team/modules/packages/libfile-mmagic-xs-perl/-/commit/99b2c07833b7425e7ef552998503d7c54e1fe39b
> I see less errors but sadly I don't know how to fix this one:
> 
> > src/MMagicST.c: In function ‘st_foreach’:
>...
> > src/MMagicST.c:500:23: error: too many arguments to function ‘func’; expected 0, have 4
> >   500 |             retval = (*func)(ptr->key, ptr->record, arg, 0);
> >       |                      ~^~~~~~ ~~~~~~~~
> > src/MMagicST.c:511:31: error: too many arguments to function ‘func’; expected 0, have 4
> >   511 |                     retval = (*func)(0, 0, arg, 1);
> >       |                              ~^~~~~~ ~
> > make[1]: *** [Makefile:354: src/MMagicST.o] Error 1

Remove the function, since it is unused?

But to be honest, this is the kind of package where I would not do any 
fixing at all and just add
  export DEB_CFLAGS_MAINT_APPEND = -std=gnu17
in debian/rules.

This will make it work as good (or bad) as in trixie,
while avoiding the risk of introducing regressions.

cu
Adrian