Re: [PATCH] gnu: tcl: Avoid a circular dependency.

[ludo@gnu.org (Ludovic Courtès)]

Nikita Karetnikov <nikita@karetnikov.org> skribis:

> You'll get the following error if you run 'git pull && make clean &&
> make'.  Feel free to push if the patch is OK.

Arrgh, good catch.

This is getting annoying.  I will instead push something along these
lines shortly:

--8<---------------cut here---------------start------------->8---
diff --git a/guix/packages.scm b/guix/packages.scm
index 4f8d87e..bb46131 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -147,7 +147,7 @@ corresponds to the arguments expected by `set-path-environment-variable'."
   (inputs package-inputs                  ; input packages or derivations
           (default '()) (thunked))
   (propagated-inputs package-propagated-inputs    ; same, but propagated
-                     (default '()))
+                     (default '()) (thunked))
   (native-inputs package-native-inputs    ; native input packages/derivations
                  (default '()) (thunked))
   (self-native-input? package-self-native-input?  ; whether to use itself as
--8<---------------cut here---------------end--------------->8---

That will allow us to have circular dependencies among modules.

This is because Guile supports this:

  (define-module (a) #:use-module (b) #:export (foo))
  (define (foo) (bar))

and

  (define-module (b) #:use-module (a) #:export (bar))
  (define (bar) (foo))

... but not if ‘foo’ or ‘bar’ were directly referring to each other at
the top level, as in (define foo bar).

Thanks,
Ludo’.