Hi!

On Mon, 2022-08-29 22:11:35 +0200, Jan-Benedict Glaw <jbg...@lug-owl.de> wrote:
> On Sun, 2022-08-28 15:32:53 -0600, Jeff Law via Gcc-patches 
> <gcc-patches@gcc.gnu.org> wrote:
> > On 8/28/2022 1:50 AM, Jan-Benedict Glaw wrote:
> > > On Tue, 2021-09-21 16:25:19 +0200, Richard Biener via Gcc-patches 
> > > <gcc-patches@gcc.gnu.org> wrote:
> > > > This makes defaults.h choose DWARF2_DEBUG if PREFERRED_DEBUGGING_TYPE
> > > > is not specified by the target and errors out if DWARF DWARF is not 
> > > > supported.
> > > While I think the pdp11 bits arreved, the rest did not (yet). Just
> > > checked my auto-builder logs. When building current HEAD as
> > > 
> > >   ../gcc/configure --prefix=... --enable-werror-always \
> > >           --enable-languages=all --disable-gcov \
> > >           --disable-shared --disable-threads --without-headers \
> > >           --target=...
> > >   make V=1 all-gcc
> > > 
> > > ALL of these targets won't build right now:
> [...]
> > Umm, most of those -elf targets do build.  See:
> > 
> > http://law-sandy.freeddns.org:8080
> 
> Another builder. :)  Randomly picking xtensa-elf, you're configuring
> as
> 
> + ../../gcc/configure --disable-analyzer --with-system-libunwind
> --with-newlib --without-headers --disable-threads --disable-shared
> --enable-languages=c,c++
> --prefix=/home/jlaw/jenkins/workspace/xtensa-elf/xtensa-elf-obj/gcc/../../xtensa-elf-installed
> --target=xtensa-elf
> 
> I guess the main difference that lets my builds fail might be
> --enable-languages=all (vs. c,c++ in your case.)
> 
> Maybe you'd give that a try? (...and I'll trigger a build with just
> c,c++ on my builder.)

So ... just building for --enable-languages=c,c++ usually works for
the *-elf targets, but I'm interested in building as much code as
possible. Is it expected that with --enable-languages=all, all those
targets will break? Can we have a sane default here, or need the
maintainers decide for any given debug format?

Thanks,
  Jan-Benedict

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