From 215a51e4412f6e0051ce2f3abced8d26125d99ca Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Tue, 25 Dec 2018 10:29:41 +0200
Subject: [PATCH] gnu: supertuxkart: Fix building with mesa@18.3.

* gnu/packages/games.scm (supertuxkart)[arguments]: Add custom phase to
add newer '#define' to source.
---
 gnu/packages/games.scm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 4ab0af2e77..7896c9c3f4 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -2053,6 +2053,13 @@ This game is based on the GPL version of the famous game TuxRacer.")
              "-DCMAKE_C_FLAGS=-fpermissive")
        #:phases
        (modify-phases %standard-phases
+         ;; see https://github.com/supertuxkart/stk-code/issues/3557
+         (add-after 'unpack 'patch-for-mesa-18.3
+           (lambda _
+             (substitute* "src/graphics/gl_headers.hpp"
+               (("#if !defined\\(USE_GLES2\\)")
+                "#if !defined(USE_GLES2)\n#   define __gl_glext_h_"))
+             #t))
          (add-after 'unpack 'unbundle
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "CMakeLists.txt"