require cmake 3.16

close #3572

Signed-off-by: Matthieu Gallien <matthieu.gallien@nextcloud.com>

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.16)
 set(CMAKE_CXX_STANDARD 14)
 cmake_policy(SET CMP0071 NEW) # Enable use of QtQuick compiler/generated code
 

admin/win/tools/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.2)
+cmake_minimum_required(VERSION 3.16)
 set(CMAKE_CXX_STANDARD 17)
 
 if(CMAKE_SIZEOF_VOID_P MATCHES 4)

shell_integration/dolphin/CMakeLists.txt

@@ -1,6 +1,6 @@
 project(dolphin-owncloud)
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.16)
 
 set(QT_MIN_VERSION "5.15.0")
 set(KF5_MIN_VERSION "5.16.0")