From 21bc326b9a20eca7ae5b14569a8e173957eb3cd9 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Mon, 15 Mar 2021 11:57:56 +0100
Subject: gnu: guile-opengl: Fix linking with libGL.so.

* gnu/packages/gl.scm (guile-opengl)[arguments]: Fix reference to libGL.so.
---
 gnu/packages/gl.scm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'gnu/packages/gl.scm')

diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
index 5b4f5ec0fa..dec2835ca6 100644
--- a/gnu/packages/gl.scm
+++ b/gnu/packages/gl.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2014, 2016 David Thompson <davet@gnu.org>
 ;;; Copyright © 2014, 2015, 2016, 2017 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2016 Nikita <nikita@n0.is>
-;;; Copyright © 2016, 2017, 2018, 2020 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2016, 2017, 2018, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016 David Thompson <davet@gnu.org>
 ;;; Copyright © 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
@@ -600,6 +600,11 @@ extension functionality is exposed in a single header file.")
                         "godir = $(moddir)\n"))))
                  (add-before 'build 'patch-dynamic-link
                    (lambda* (#:key inputs outputs #:allow-other-keys)
+                     (substitute* "gl/runtime.scm"
+                       (("\\(dynamic-link\\)")
+                        (string-append "(dynamic-link \""
+                                       (assoc-ref inputs "mesa")
+                                       "/lib/libGL.so" "\")")))
                      (define (dynamic-link-substitute file lib input)
                        (substitute* file
                          (("dynamic-link \"lib([a-zA-Z]+)\"" _ lib)
-- 
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