[llvm-dev] Buildbot for minimum supported GCC version? (seeing local build failures)

James Henderson via llvm-dev llvm-dev at lists.llvm.org
Tue Jan 22 02:01:52 PST 2019

Based on other discussions re. C++14 support etc, I think we will be
dropping support for this version of GCC at some point in the future, but
not yet! As a point of principle though, I think whatever becomes our
minimum supported version should have a buildbot for it (same goes for
clang and MSVC, although I know we have an MSVC one already).


On Mon, 21 Jan 2019 at 18:26, Pavel Labath <labath at google.com> wrote:

> Hello James,
> I believe r351756 should fix the build error in OptionalTest that you
> are seeing.
> As for the buildbots, I agree we should have a buildbot building with
> the minimum supported compiler version. If noone cares about that
> configuration enough to put one up, maybe we should consider dropping
> support for that version?
> pavel
> On Mon, 21 Jan 2019 at 03:51, James Henderson
> <jh7370.2008 at my.bristol.ac.uk> wrote:
> >
> > Hi,
> >
> > Do we have any build bots for the currently minimum required version of
> GCC? I'm currently seeing a build failure locally using v4.8.4, due to a
> compiler bug fixed in 4.9 (see GCC bug id 57824), coming from
> OptionalTest.cpp, relating to raw string literals in macros not being able
> to encompass multiple lines. The change in question (r351548) was
> introduced 3 days ago, and as far as I can see hasn't flagged up a build
> bot failure.
> >
> > I'm also seeing a build failure coming from llvm-xray, although in this
> case it looks like it is actually a change in a header somewhere that is
> causing it. I haven't yet tracked down the revision in question for this
> (it's possible it's r351701 (and not fixed by r351728) but also possible
> that something on my machine has got messed up), but removing the contents
> of xray-converter.cpp means I can at least build successfully.
> >
> > Regards,
> >
> > James
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