[llvm] r219976 - Initial version of Go bindings.

[Peter Collingbourne]

On Mon, Oct 20, 2014 at 04:38:07PM -0700, David Blaikie wrote:
> On Mon, Oct 20, 2014 at 4:37 PM, David Blaikie <dblaikie at gmail.com> wrote:
> 
> >
> >
> > On Mon, Oct 20, 2014 at 4:14 PM, Peter Collingbourne <peter at pcc.me.uk>
> > wrote:
> >
> >> How are you invoking the compiler in your build (i.e. what are the values
> >> of config.host_cc and config.host_cxx in $builddir/test/lit.site.cfg)?
> >>
> >
> > config.host_cc = "/usr/local/google/home/blaikie/install/bin/clang "
> > config.host_cxx = "/usr/local/google/home/blaikie/install/bin/clang++ "
> >
> 
> Oh, and those are symlinks:
> 
> lrwxrwxrwx 1 blaikie eng 9 Sep 18 20:07
> /usr/local/google/home/blaikie/install/bin/clang -> clang-3.4*
> lrwxrwxrwx 1 blaikie eng 5 Oct 10 11:06
> /usr/local/google/home/blaikie/install/bin/clang++ -> clang*

I debugged this off-list with David and we found the source of his problem: the
presence of the -gsplit-dwarf flag in the output of "llvm-config --cppflags"
causes one part of the Go toolchain ("cgo") to blow up, as it does not
understand split DWARF.

Regardless of whether cgo supports split DWARF, that flag should not appear
in llvm-config's output. I'll see what I can do about removing it.

Thanks,
-- 
Peter