bug#25955: [PATCH] guix: Only attempt to build json builder if json is available.

[John Darrington]

* guix/import/stackage.scm: avoid loading the json module.
---
 guix/import/stackage.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/import/stackage.scm b/guix/import/stackage.scm
index 5b25adc..c8f195a 100644
--- a/guix/import/stackage.scm
+++ b/guix/import/stackage.scm
@@ -23,7 +23,6 @@
   #:use-module (srfi srfi-26)
   #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-35)
-  #:use-module (guix import json)
   #:use-module (guix import hackage)
   #:use-module (guix memoization)
   #:use-module (guix packages)
@@ -31,6 +30,8 @@
   #:export (stackage->guix-package
             %stackage-updater))
 
+(module-autoload! (current-module) '(guix import json) '(json))
+
 
 ;;;
 ;;; Stackage info fetcher and access functions
-- 
2.1.4