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From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: User-profile search paths should include system-profile
	directories
Date: Fri, 30 Sep 2016 22:16:21 +0200
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In-Reply-To: <7tbmza7vse.fsf@gmail.com> ("Carlos =?utf-8?Q?S=C3=A1nchez?= de
	La Lama"'s message of "Mon, 26 Sep 2016 13:19:45 +0200")
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To: Carlos =?utf-8?Q?S=C3=A1nchez?= de La Lama <csanchezdll@gmail.com>
Cc: guix-devel@gnu.org, Alex Kost <alezost@gmail.com>

Howdy,

csanchezdll@gmail.com (Carlos S=C3=A1nchez de La Lama) skribis:

>>> Making this work would need two things:
>>> 1) not stripping unexisting directories from search paths
>>> 2) constructing environment variables prepending every profile root to
>>>    the search paths of each profile.
>>>
>>> Now, my question is, why are unexisting search paths removed?
>>
>> I don=E2=80=99t think this is really the problem here.  The problem here=
 is that
>> if a profile contains only, say, guile-json, there is no way Guix can
>> know about GUILE_LOAD_PATH because that variable is associated with
>> Guile itself, not with guile-json.
>
> The idea is each profile environment unconditionally adds search paths
> for all the profiles in use (which are passed when evaluating
> <profile>/etc/profile in the GUIX_PROFILES variable). This was the
> proposal in my first message (looks *similar* to an earlier post in the
> bug discussion, but it is quite different).
>
> In the case you suggest, the profile cointaining guile will define
> GUILE_LOAD_PATH to point inside its own profile and *also* inside the
> profile containing guile-json.

The problem is that, as things currently are, the profile that contains
only Guile has no reason to define GUILE_LOAD_PATH.  So I=E2=80=99m unsure =
if
this can work as is.  We=E2=80=99ll see!

Thanks for looking into it,
Ludo=E2=80=99.