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Message #38211
Re: mingw64 C++11 status?
>From https://bugs.launchpad.net/kicad/+bug/1800339/comments/9
It do indeed seem like updating the msys2 build environment is a good
idea. I created a new environment, but at the moment I am having a
little troble with make the new one work. Maybe there is some
environment varible that I have forgotten. I will change it over as
soon as possible for the future builds.
Nick
On Sun, 28 Oct 2018 at 01:12, Nick Østergaard <oe.nick@xxxxxxxxx> wrote:
>
> Hi Seth,
>
> Currently the gcc version is:
> mingw-w64-i686-binutils 2.28-2
> mingw-w64-i686-gcc 7.1.0-3
> mingw-w64-i686-gcc-ada 7.1.0-3
> mingw-w64-i686-gcc-fortran 7.1.0-3
> mingw-w64-i686-gcc-libgfortran 7.1.0-3
> mingw-w64-i686-gcc-libs 7.1.0-3
> mingw-w64-i686-gcc-objc 7.1.0-3
> mingw-w64-x86_64-binutils 2.28-2
> mingw-w64-x86_64-gcc 7.1.0-3
> mingw-w64-x86_64-gcc-ada 7.1.0-3
> mingw-w64-x86_64-gcc-fortran 7.1.0-3
> mingw-w64-x86_64-gcc-libgfortran 7.1.0-3
> mingw-w64-x86_64-gcc-libs 7.1.0-3
> mingw-w64-x86_64-gcc-objc 7.1.0-3
>
> I can try to upgrade in the weekend in another env such that we can
> retest if it makes a difference.
>
> Nick
> On Sat, 27 Oct 2018 at 03:34, Seth Hillbrand <seth@xxxxxxxxxxxxx> wrote:
> >
> > Hi Devs-
> >
> > Does anyone know what our mingw64 g++ version for the nightly builds'
> > support for C++11 is? There are a few bug reports of odd locking
> > behavior[1][2]. These seem to be when the user gets to the dynamic
> > ratsnest update.
> >
> > So, thinking that our use of atomic might be problematic, I've adjusted
> > this a few times, finally going to std::async with std::futures
> > promises. This seems to have cleared the issue for [1] but made [2]
> > worse.
> >
> > Both std::async and std::future have been supported on Linux gcc since
> > at least 4.7 but I've read in a few places [3][4] that it might not work
> > in mingw64. I can't seem to find a list of supported features anywhere.
> > Does anyone have a reference?
> >
> > -Seth
> >
> > [1] https://bugs.launchpad.net/kicad/+bug/1795951
> > [2] https://bugs.launchpad.net/kicad/+bug/1798460
> > [3]
> > https://stackoverflow.com/questions/10209871/c11-stdasync-doesnt-work-in-mingw
> > [4] https://github.com/meganz/mingw-std-threads/issues/17
> >
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