From c809ec94d11f1c7e23cccb988dfb1412aff72636 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Sat, 13 Dec 2014 00:06:32 +0100
Subject: utils: Change 'patch-makefile-SHELL' to support ":=" assignments.

Reported by Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>.

* guix/build/utils.scm (patch-makefile-SHELL): Update regexp to match
  ":=" assignments.
---
 guix/build/utils.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 01ac8961d8..be91fb467b 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -638,7 +638,7 @@ (define (find-shell name)
 
   (let ((st (stat file)))
    (substitute* file
-     (("^ *SHELL[[:blank:]]*=[[:blank:]]*([[:graph:]]*/)([[:graph:]]+)(.*)$"
+     (("^ *SHELL[[:blank:]]*:?=[[:blank:]]*([[:graph:]]*/)([[:graph:]]+)(.*)$"
        _ dir shell args)
       (let* ((old (string-append dir shell))
              (new (or (find-shell shell) old)))
-- 
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