Ludovic Courtès writes:

>> * gnu/packages/patches/gcc-4-cfns-fix-mismatch-in-gnu_inline-attributes.patch:
>> New file.
>
> Could you use a shorter file name, so we don't hit tar’s limit on file
> name length?

I chose: gcc-4-compile-with-gcc-5.patch.  New patch attached.

>> * gnu/local.mk (dist_patch_DATA): Add it.
>> * gnu/packages/gcc.scm (gcc-4.7): Use it.
>
> I think this can actually go to master, though please double-check that
> the world isn’t getting rebuilt.  :-)

Here is what I did

    18:25:50 janneke@dundal:~/src/guix-master [env]
    $ ./pre-inst-env guix refresh -l gcc@4.7.4
    No dependents other than itself: gcc@4.7.4
    18:25:55 janneke@dundal:~/src/guix-master [env]
    $ ./pre-inst-env guix build hello
    /gnu/store/lr8c1yswvrgckkaa6nzdi7q0d618bazs-hello-2.10
    18:26:01 janneke@dundal:~/src/guix-master [env]

so indeed, it looks fine; and it makes sense.  I was working on the
$ORIGIN stuff inside (a copy of) the gcc-4.7.4 builder -- that code is
of course (re)used by all other gcc packages.

Greetings,
janneke