From 2b742c7daf107413d6dd7b43e5feb1ec1a2495a6 Mon Sep 17 00:00:00 2001
From: Etienne Trimaille <gustrimaille@yahoo.fr>
Date: Tue, 10 Oct 2017 17:14:59 +0200
Subject: [PATCH] bump to Qt 5.9 for the 3D

---
 CMakeLists.txt | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 257a3331858..d7d812933d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -261,9 +261,10 @@ IF(WITH_CORE)
   #############################################################
   # search for Qt5
   IF (WITH_3D)
-    # for 3D support we strictly require Qt >= 5.8
+    # for 3D support we strictly require Qt >= 5.9
     # (Qt 3D was introduced in 5.7 but it is not stable enough in that branch)
-    SET(QT_MIN_VERSION 5.8.0)
+    # Qt 5.8 is missing some classes, https://github.com/qgis/QGIS/pull/5203#discussion_r142319862
+    SET(QT_MIN_VERSION 5.9.0)
   ELSE ()
     SET(QT_MIN_VERSION 5.2.0)
   ENDIF()