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Subject:	Re: Urgent gcc update to GCC 13.3
To:	cygwin AT cygwin DOT com
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From:	Mark Liam Brown via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Mark Liam Brown <brownmarkliam AT gmail DOT com>
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On Mon, Jul 15, 2024 at 9:35 PM Csaba Ráduly via Cygwin
<cygwin AT cygwin DOT com> wrote:
>
> On 09/07/2024 08:17, Cedric Blancher via Cygwin wrote:
> > I'd agree that newer gcc 13.x to compile Cygwin and as /usr/bin/gcc
> > would be a very good idea, not only for performance+STL fixes, but
> > also since by default the Cygwin distro lacks C++17 support,
>
> Huh? GCC supports C++17 since GCC 7
>
> https://en.cppreference.com/w/cpp/17

No, it does not. *Some* features work, but gcc 13.1 was the first
release where everything mandated by C++17 is working, or at least
compiling.
So far g++ in Cygwin 3.5.3 cannot compile anything in std::pmr:*, e.g.
std::pmr::monotonic_buffer_resource, std::pmr::polymorphic_allocator,
std::pmr::string, ruling out any realistic C++17 apps (of course,
HelloWorld will work).

Mark
-- 
IT Infrastructure Consultant
Windows, Linux

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