Hi Guix,

This patch series addressed some warnings generated by the linter defined
in #47676.  There will (presumably) be more patches along these lines
later.

These patches do *not* cause any rebuilds (except when cross-compiling),
as (string-append "CC=" (cc-for-target)) evaluates to "CC=gcc" when not
cross-compiling (this is evaluated from within Guix, not from in the build
container, so this doesn't cause a derivation change).

An exception is xssproxy, which needs to be rebuilt, due to nested usage of
quasiquote / unquote.  It can probably be worked-around but I don't think
it's worth it for a single package.

./pre-inst-env guix build guix still succeeds, and the derivation for guix
isn't even changed:

$./pre-inst-env guix weather guix
> computing 1 package derivations for x86_64-linux...
> looking for 1 store items on https://ci.guix.gnu.org...
> https://ci.guix.gnu.org
>   100.0% substitutes available (1 out of 1)
> [...]

Now running "./pre-inst-env guix pull --url=$PWD --profile=tmp-prof --disable-authentication --allow-downgrades --banch=BRANCH";
I'll let you know if this fails.

Greetings,
Maxime