[Bug d/87865] gdc doesn't build unless assert is marked noreturn

[ro at CeBiTec dot Uni-Bielefeld.DE]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87865

--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> --- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
> This is part of the dmd frontend which as no interaction with gcc.  So
> gcc_unreachable() can't be used here.

I see.  However, if upstream dmc were built with similar warning options
than gcc, the problem would exist there as well.

> Sounds like some independent compatibility layer is required here instead.

That's certainly an option.  Among others, what to do here depends on
how prevalent the problem is: if Solaris 10 is the only OS affected and
the other pre-Solaris 11.4 issues (especially PR d/87865) cannot be
resolved for the GCC 9 release, one might as well close the bug as
WONTFIX given Solaris 10 is obsoleted in GCC 9.