From 2ed626bf0d28df44328c1946cd69eb79a853c6e0 Mon Sep 17 00:00:00 2001
From: Marius Bakke <mbakke@fastmail.com>
Date: Thu, 31 Oct 2019 00:41:31 +0100
Subject: gnu: pingus: Adjust for GCC 7.

Fixes <https://bugs.gnu.org/37946>.

* gnu/packages/games.scm (pingus)[source](modules, snippet): New fields.
---
 gnu/packages/games.scm | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'gnu')

diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 04b06c88ee..a2917a5f23 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -1445,7 +1445,16 @@ (define-public pingus
         (base32
          "0wp06kcmknsnxz7bjnsndb8x062z7r23fb3yrnbfnj68qhz18y74"))
        (patches (search-patches "pingus-boost-headers.patch"
-                                "pingus-sdl-libs-config.patch"))))
+                                "pingus-sdl-libs-config.patch"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin
+           (substitute* "src/pingus/screens/demo_session.cpp"
+             (("#include <iostream>")
+              ;; std::function moved to <functional> with C++ 11.
+              ;; Remove this for versions newer than 0.7.6.
+              "#include <iostream>\n#include <functional>"))
+           #t))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)
                      ("scons-python2" ,scons-python2)))
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