How to use guix-for-channels together with -L without errors?

[Tomas Volf <~@wolfsden.cz>]

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Hi,

I decided to start using guix-for-channels and run into weird issue.
Reproduction is easy:

1. Make a new directory.

2. Make an empty file with .scm extension, for example:

    $ touch foo.scm

3. Try to build guix-for-channels in that directory with `-L .':

    $ guix build -L . -e '((@ (gnu packages package-management) guix-for-channels) (@ (guix channels) %default-channels))'

4. Observe an error in the output:

    Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
    no code for module (foo)

Now, what I do not understand is why this error:

    no code for module (foo)

is there.  I am building guix from %default-channels, why is it even loading
files in the local directory?  And how do I make it stop?  In this case, I could
just drop `-L .', but in real code I need the argument to load modules required
for the system.

Any comments and/or ideas?

Thanks and have a nice day,
Tomas Volf

--
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

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