From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Famulari <leo@famulari.name>
Subject: Re: Go 1.4.3 failing on core-updates
Date: Sat, 22 Oct 2016 02:28:17 -0400
Message-ID: <20161022062817.GC2312@jasmine>
References: <20161015201228.GA12403@jasmine>
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To: Andy Wingo <wingo@igalia.com>
Cc: guix-devel@gnu.org, Matthew Jordan <matthewjordandevops@yandex.com>

On Mon, Oct 17, 2016 at 10:23:08AM +0200, Andy Wingo wrote:
> On Sat 15 Oct 2016 22:12, Leo Famulari <leo@famulari.name> writes:
> 
> > # net
> > cannot load DWARF output from $WORK/net/_obj//_cgo_.o: decoding dwarf section info at offset 0x4: unsupported version 0
> > # os/user
> > cannot load DWARF output from $WORK/os/user/_obj//_cgo_.o: decoding dwarf section info at offset 0x4: unsupported version 0
> 
> Probably this is due to a version change in GCC or the toolchain -- this
> part of go is designed to interoperate with GCC in some way.  Try fixing
> the version of the toolchain to something older, perhaps?

It turns out that Go 1.4.3's cgo (the Go interface to C code) doesn't
work with Binutils > 2.27:

https://github.com/golang/go/issues/16906

We are still able to use Go 1.4.3 to bootstrap later versions of Go if
we disable cgo, as I did in 04a95a4fd66.