Re: [PATCH] gnu: Add OCaml. licenses: Add QPL.

[Ludovic Courtès]

Andreas Enge <address@hidden> skribis:

> Am Montag, 21. Januar 2013 schrieb Ludovic Courtès:
>> Alternately, you could move the ‘check’ phase after the install phase,
>> like this (untested):
>
> But then, if the check fails, the /nix/store would contain an "invalid" 
> package, no?

No: if ‘check’ fails (or ‘install’, or ‘patch-shebangs’), then the whole
process fails, and the store path is marked as invalid.

That is, /nix/store/*-ocaml* exists and may even be populated, but
‘valid-path?’ returns #f for that directory.  Thus, the daemon considers
that it has to rebuild it, as if it did not exist at all.

Thanks,
Ludo’.