Re: GCC 9 enabled for x86 and arm platforms.

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Sun, Sep 13, 2020 at 07:28:16AM +0000, Thomas Mueller wrote:
> > i've switched x86 and arm to GCC 9.  several others are liking
> > to switch soon, and they will all likely need clean builds to
> > be stable.
> 
> > please send email here or to me or send-pr for problems.
>         
> > thanks! 
>         
> 
> > .mrg.   
> 
> Would -r flag in build.sh command be sufficient to ensure a clean build?
> 
> Something like
> ===> build.sh command:    ./build.sh -m amd64 -B nb899-20190723 -M ../obj -T ../tooldir -r -U distribution kernel=SANDY7
> 
> Or would it be necessary to explicitly clean obj and tooldir directories, like
> rm -R ../obj/*
> rm -R ../tooldir/*
> ?
> 
> At this stage I wouldn't want to keep any remnants from old builds.

Making sure there isn't MKUPDATE=yes nor -u in build.sh call was enough
for me. The explicit clean would probably be better. (-r doesn't touch
OBJDIR)

Cheers,

Patrick