Re: pkg-config disappeared

[Ludovic Courtès]

Andreas Enge <address@hidden> skribis:

> The package pkg-config does not exist any more:
>
> $ guix package -i pkg-config
> guix package: error: pkg-config: package not found
>
> This has probably to do with the cross-compilation changes.
>
> In pkg-config.scm, there is a
>    (define-syntax pkg-config
> I can use pkg-config in my package definitions, but it does not seem to be 
> exported to "guix package".

It’s actually exported (see the ‘define-module’ form) but since it’s not
a ‘package’ object, the ‘fold-packages’ procedure (used by “guix
package” et al.) skips it.

I just committed this to solve the problem:

diff --git a/gnu/packages/pkg-config.scm b/gnu/packages/pkg-config.scm
index 9f10440..eb5f748 100644
--- a/gnu/packages/pkg-config.scm
+++ b/gnu/packages/pkg-config.scm
@@ -24,7 +24,10 @@
   #:use-module (guix build-system trivial)
   #:export (pkg-config))
 
-(define %pkg-config
+;; This is the "primitive" pkg-config package.  People should use `pkg-config'
+;; (see below) rather than `%pkg-config', but we export `%pkg-config' so that
+;; `fold-packages' finds it.
+(define-public %pkg-config
   (package
    (name "pkg-config")
    (version "0.27.1")

Thanks,
Ludo’.