From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
Subject: Re: [PATCH 2/5] gnu: Add avr-gcc.
Date: Wed, 10 Aug 2016 09:52:11 +0200
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To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: guix-devel <guix-devel@gnu.org>


Danny Milosavljevic <dannym@scratchpost.org> writes:

>> Did you install the =E2=80=9Cavr-toolchain=E2=80=9D package or just th=
e =E2=80=9Cavr-gcc=E2=80=9D?=20
>
> I have installed the package "avr-toolchain". The program "avr-gcc" is =
in my profile but I think it was not from the package avr-gcc.
>
> $ ls -l /home/dannym/.guix-profile/bin/avr-gcc
> lrwxrwxrwx 143 root guixbuild 69  1. Jan 1970  /home/dannym/.guix-profi=
le/bin/avr-gcc -> /gnu/store/lhy6jlpwf92yknmfai3675lmr8bhc4jf-avr-gcc-5.3=
.0/bin/avr-gcc
> $ guix package -r avr-gcc
> nothing to be done
> $ ls -l /home/dannym/.guix-profile/bin/avr-gcc
> lrwxrwxrwx 143 root guixbuild 69  1. Jan 1970  /home/dannym/.guix-profi=
le/bin/avr-gcc -> /gnu/store/lhy6jlpwf92yknmfai3675lmr8bhc4jf-avr-gcc-5.3=
.0/bin/avr-gcc
>
> I've read through the mailing list but even the "-D__x86_64__" hack doe=
sn't work anymore. Hmm...
>
>> Should application setup for individual applications also be added to =
the manual?
>
> In general yes - but I think avr-gcc is special in that it really doesn=
't need host system stuff at all. There should be no configuration necess=
ary. (It is necessary, but it shouldn't be)
>
> Also, I manually added avr/include and avr/lib as a workaround. This mo=
stly works. However, when linking I get:

I=E2=80=99m pretty sure I didn=E2=80=99t have to do this.  Instead it was=
 sufficient to
set a couple of environment variables.  The effect is the same, though.

> ...
> avr-ld: cannot find crtatmega32u4.o: No such file or directory
> avr-ld: cannot find -latmega32u4
>
> And indeed this crt doesn't exist at all.

I encountered the same issue last time I used avr-gcc.  This hasn=E2=80=99=
t
always been like this.  If I recall correctly the names of the crt files
changed after we enabled multilib support.

Maybe Dave knows more about this?

~~ Ricardo