Hi,

Ludovic Courtès <ludo@gnu.org> skribis:

> Actually all the profile hooks refer to the native derivation.

I’ve looked at it and this problem is surprisingly tricky to address.

I’ve tried to address it in an API-compatible way, which meant setting
the ‘%current-system’ and ‘%current-target-system’ parameters around the
hook calls, but that is ugly, hard to get right (dynamic binding and
monadic code really don’t go together well :-/), and actually raises
another issue (‘mapm/accumulate-builds’ appears to ignore the initial
dynamic bindings for these two parameters).  Hacky patch attached to
illustrate.

So I’m very much tempted to instead require each hook to take ‘system’
and ‘#:target’ arguments and pass them to ‘gexp->derivation’.  It’ll
break the API, in case someone out there has custom profile hooks
(unlikely given that it’s not really documented), but I’d say that’s OK.

Thoughts?

Ludo’.