Re: bootstrapping netbsd 9 using gcc 10?

[Andrew Cagney <andrew.cagney%gmail.com@localhost>]

On Sun, 11 Oct 2020 at 17:16, Joerg Sonnenberger <joerg%bec.de@localhost> wrote:
>
> On Sun, Oct 11, 2020 at 04:44:13PM -0400, Andrew Cagney wrote:
> > On Sun, 11 Oct 2020 at 15:59, Joerg Sonnenberger <joerg%bec.de@localhost> wrote:
> > >
> > > On Sat, Oct 10, 2020 at 10:21:25AM -0400, Andrew Cagney wrote:
> > > > I'm guessing no one has tried to bootstrap using gcc 10?
> > >
> > > Someone decided that -fcommon is bad and everything needs to be broken.
> > > I've stated working on the changes for the LLVM update, but it is quite
> > > likely that some places have regressed since then.
> >
> > Yea, I figured initially just the build tools would need "fixing"
> > which should be easy.  Right.
> > But then I encountered "config" - <<TAIQ_HEAD(,structure) variable>>
> > is not extern friendly.  Fortunately all is not lost.  Using:
> >
> >   export HOST_CC='cc -fcommon'
> >   export HOST_CXX='c++ -fcommon'
>
> Set HOST_CFLAGS / HOST_CXXFLAGS instead

These aren't mentioned in BUILDING?