[Buildroot] [autobuild.buildroot.net] Your build results for 2017-01-13
Yann E. MORIN
yann.morin.1998 at free.fr
Sun Jan 15 17:22:07 UTC 2017
Jörg, All,
On 2017-01-14 16:34 +0100, Jörg Krause spake thusly:
> Hi,
>
> On Sat, 2017-01-14 at 08:29 +0100, Thomas Petazzoni wrote:
> > Hello,
> >
> > This is the list of Buildroot build failures that occured on
> > 2017-01-13, and for which you are a registered architecture developer
> > or package developer. Please help us improving the quality of
> > Buildroot by investigating those build failures and sending patches
> > to
> > fix them. Thanks!
> >
> > Build failures related to your packages:
> >
> > arm | mpd-0.20 | http://autobuild.buil
> > droot.net/results/da259e57f96cf0dd6fbac9fe44826e93f986d9e9
> > sparc | mpd-0.20 | http://autobuild.buil
> > droot.net/results/242b4cff0257f353ce6b2df744c51488dbc0d2c5
> > sparc | mpd-0.20 | http://autobuild.buil
> > droot.net/results/8d50a025ffcc5b3408fa27f59f0cd896616dc2c6
> > i686 | mpd-0.20 | http://autobuild.buil
> > droot.net/results/362233e40960f8f0410bf24404fa05ce38cbfb56
> > nios2 | mpd-0.20 | http://autobuild.buil
> > droot.net/results/a5506440bd02726d6e3b0240ece876c73b92b546
> > sparc | mpd-0.20 | http://autobuild.buil
> > droot.net/results/e964b1f0ac39ec9c14f5e3b368132d8dc671c249
> >
>
> The error message is:
>
> error: 'exception_ptr' in namespace 'std' does not name a type
>
> The problem is related to this bug report [1]. Both std::future and
> std::exception_prt are only enabled in libstdc++ if
> 'ATOMIC_INT_LOCK_FREE > 1'. std::exception_prt is only supported for
> targets with always-lock-free atomics for int. This is a long-standing
> issue in the libstdc++ and was finally fixed in GCC trunk r244051
> [2][3] and will be available in GCC 7.0.
>
> Any suggestions how to handle this build error?
>
> 1) Disable for the targets concerned and wait for GCC 7.0?
> 2) Backport the patch?
The patch is not small... :-(
So I'd say we disable it on archs that do not have the lock-free int.
Regards,
Yann E. MORIN.
> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64735
> [2] https://gcc.gnu.org/viewcvs/gcc/trunk/libstdc%2B%2B-v3/include/std/
> future?view=log&pathrev=244051
> [3] https://github.com/gcc-mirror/gcc/commit/c45be7f1aef92f2ea7363cbc46
> 27f943b83ca902
>
> Best regards,
> Jörg Krause
> _______________________________________________
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> buildroot at busybox.net
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