From 4ca3d0d94370002430b5131520a11c06b23bdcaa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Mon, 10 Apr 2017 06:52:44 +0200
Subject: [PATCH] [platforms/drm] Explicitly request event context version 2

Summary:
Libdrm 2.4.78 introduces a version 2 and if KWin gets built against it
our code would break. Given that this change is for Plasma/5.8 branch.

Closes T5839

Reviewers: #kwin, #plasma

Subscribers: plasma-devel, kwin

Tags: #kwin

Maniphest Tasks: T5839

Differential Revision: https://phabricator.kde.org/D5380
---
 plugins/platforms/drm/drm_backend.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugins/platforms/drm/drm_backend.cpp b/plugins/platforms/drm/drm_backend.cpp
index dc2b796965..9e9cb60e16 100644
--- a/plugins/platforms/drm/drm_backend.cpp
+++ b/plugins/platforms/drm/drm_backend.cpp
@@ -61,6 +61,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DRM_CAP_CURSOR_HEIGHT 0x9
 #endif
 
+#define KWIN_DRM_EVENT_CONTEXT_VERSION 2
+
 namespace KWin
 {
 
@@ -240,7 +242,7 @@ void DrmBackend::openDrm()
             }
             drmEventContext e;
             memset(&e, 0, sizeof e);
-            e.version = DRM_EVENT_CONTEXT_VERSION;
+            e.version = KWIN_DRM_EVENT_CONTEXT_VERSION;
             e.page_flip_handler = pageFlipHandler;
             drmHandleEvent(m_fd, &e);
         }