bug#43513: json-c build failure (on armhf-linux) while trying to build u-boot

[Andreas Enge]

Hello Danny,

On Sat, Sep 26, 2020 at 12:53:20PM +0200, Danny Milosavljevic wrote:
> I'd like to test what happens if one builds json-c on an aarch64 host
> for i686.
> Could we enable qemu-binfmt for i686 on an aarch64 host for me to test it?
> One machine is enough--I'd just run
>   guix environment -s i686-linux gcc-toolchain -- gcc -o a00 
> -D_FILE_OFFSET_BITS=xxx a00.c
> and then later
>   guix build -s i686-linux json-c

you can give it a try on dover.guix.info, but you should be ready for
a wait: As other build machines, it does not use substitutes, so everything
will be built locally using qemu-binfmt. Maybe you could import what
is needed for the "guix environment" from an i686 machine?

I would suggest to do a "guix pull 
--commit=0939462e3f81bc98b38bdb7610e6a80ca1cbaa1b",
since this is the version already available on the machine.

Andreas