I tried removing some of the compiler flags to see if I could identify what
might be triggering this, and removing "-fno-delete-null-pointer-checks"
seems to make this error vanish.
Not sure if that helps or not, but hopefully, I can get this beast building
without it.
Thanks,
Tom
On Mon, Mar 11, 2019 at 1:31 PM Jakub Jelinek <ja...@redhat.com> wrote:
> On Mon, Mar 11, 2019 at 01:16:07PM -0400, Tom Callaway wrote:
> > I spent some time this weekend trying to get Chromium 72 building on
> > Fedora, but I kept running into a C++ issue that I was not able to
> resolve.
> > This happened with gcc-9.0.1-0.8.fc30.x86_64 and gcc-8.3.1-2.fc29.x86_64.
>
> Can you please provide preprocessed source + g++ command line options,
> from the snippets it is hard to see what's going on.
> From the description it seems maybe like:
> template <int N>
> struct S {
> static constexpr int a[2] = { 1, 2 };
> };
> static_assert (&S<0>::a[1] != nullptr);
>
> which g++ accepts for -std=c++{11,14} but rejects for -std=c++{17,2a} when
> S<0>::a is an inline variable. I think we have a similar
> http://gcc.gnu.org/PR89074 . The middle-end punts here and doesn't
> optimize
> the != NULL to true because it is address of a comdat variable and thus it
> in the end could come up from any other TU. Though perhaps in these cases
> the standard gives us some guarantees.
>
> Jakub
>
_______________________________________________
devel mailing list -- devel@lists.fedoraproject.org
To unsubscribe send an email to devel-le...@lists.fedoraproject.org
Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
