[PATCH v2 2/2] libstdc++: Use using instead of typedef in opts-common.h

[Jonathan Wakely]

On Thu, 11 Jan 2024 at 10:12, Ken Matsui <kmatsui@cs.washington.edu> wrote:
>
> On Thu, 11 Jan 2024 at 09:55, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
> >    On Thu, 11 Jan 2024, 09:43 Ken Matsui, <[1]kmatsui@gcc.gnu.org> wrote:
> >
> >    > libstdc++-v3/ChangeLog:
> >
> >    >         * src/filesystem/ops-common.h (stat_type): Use using.
> >
> >    > Signed-off-by: Ken Matsui <[2]kmatsui@gcc.gnu.org>
> >    > ---
> >    >  libstdc++-v3/src/filesystem/ops-common.h | 4 ++--
> >    >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> >    > diff --git a/libstdc++-v3/src/filesystem/ops-common.h
> >    > b/libstdc++-v3/src/filesystem/ops-common.h
> >    > index d78a54754c2..e302d8caae6 100644
> >    > --- a/libstdc++-v3/src/filesystem/ops-common.h
> >    > +++ b/libstdc++-v3/src/filesystem/ops-common.h
> >    > @@ -118,7 +118,7 @@ namespace __gnu_posix
> >    >    inline int close(int fd)
> >    >    { return ::_close(fd); }
> >
> >    > -  typedef struct ::__stat64 stat_type;
> >    > +  using stat_type = struct ::_stat64;
> >
> >    You've removed an underscore, is that intentional? Has this been compiled
> >    + tested with mingw?
> This is totally unintentional.  I'll fix it.  I've tested it with Linux
> and do not have a mingw environment to test it with.  Would you have any
> suggestions on how to test it?

If your linux distro has prebuilt packages for mingw-w64-g++ then it's
pretty easy to build a new compiler from trunk. I can give you a
simple recipe for doing it on Fedora.

In the meanwhile, I can test your updated patch for you.