Ricardo Wurmus <rekado@elephly.net> skribis:

> So, a problem with a linker script that cannot be found and a missing
> avr-objcopy.  I found them in the binutils-cross-avr output in the
> store, but since there’s no separate package for this I installed it
> like this:
>
>     guix package -i /gnu/store/5f7pp8r9wpwzsf61cf406xb1hkad2cdi-binutils-cross-avr-2.25.1

If needed, you could add one such package to ‘cross-base.scm’.
Currently there are only full-blown cross-GCCs there, but if adding a
cross-binutils is useful, go for it.

> Microscheme 0.9.2, (C) Ryan Suchocki
>>> Treeshaker: After 4 rounds: 87 globals purged! 22 bytes will be reserved.
>>> 18 lines compiled OK
>>> Assembling...
> avr-ld: cannot find crtm328p.o: No such file or directory
> avr-ld: cannot find -lm
> avr-ld: cannot find -lc

In GCC we modify the spec file so that the right -L/libc/dir/name is
passed to ld; see (gnu packages gcc), ‘GNU_USER_TARGET_LIB_SPEC’.

However, ‘gcc-cross-sans-libc-avr’ is a bare-bones compiler, so it
doesn’t get the -L flag in question since there’s no libc to link to.

To get a full-blow compiler that uses avr-libc, you could start from
this: