Increase required CMake version

Qt5 require CMake 2.8.11 or later http://doc.qt.io/qt-5/cmake-manual.html

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59ff4bc04463bcc8b28f2b6168ce9357e6e08952..b5acf71509bd2458fd65ec78af7956e632a7d070 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 2.6.4)
+cmake_minimum_required (VERSION 2.8.11)
 
 include (CheckFunctionExists)
 include (CheckCSourceCompiles)