diff --git a/CMakeLists.txt b/CMakeLists.txt
index 029cee4f..f436adca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.4 FATAL_ERROR)
 cmake_policy(VERSION 2.8)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")
 
@@ -75,7 +75,7 @@ ELSEIF(LINUX)
 		endif ()
 		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVK_USE_PLATFORM_WAYLAND_KHR")
 		include_directories(${WAYLAND_INCLUDE_DIR})
-		execute_process(COMMAND ${PKG_CONFIG} --variable=pkgdatadir wayland-protocols OUTPUT_VARIABLE protocol_dir OUTPUT_STRIP_TRAILING_WHITESPACE)
+		pkg_get_variable(protocol_dir wayland-protocols pkgdatadir)
 		execute_process(COMMAND ${WAYLAND_SCANNER} client-header ${protocol_dir}/stable/xdg-shell/xdg-shell.xml ${CMAKE_BINARY_DIR}/xdg-shell-client-protocol.h
 				COMMAND ${WAYLAND_SCANNER} private-code ${protocol_dir}/stable/xdg-shell/xdg-shell.xml ${CMAKE_BINARY_DIR}/xdg-shell-protocol.c)
 		include_directories(${CMAKE_BINARY_DIR})
diff --git a/base/vulkanexamplebase.cpp b/base/vulkanexamplebase.cpp
index 622a1667..507666ee 100644
--- a/base/vulkanexamplebase.cpp
+++ b/base/vulkanexamplebase.cpp
@@ -842,7 +842,8 @@ VulkanExampleBase::~VulkanExampleBase()
 		wl_keyboard_destroy(keyboard);
 	if (pointer)
 		wl_pointer_destroy(pointer);
-	wl_seat_destroy(seat);
+	if (seat)
+		wl_seat_destroy(seat);
 	xdg_wm_base_destroy(shell);
 	wl_compositor_destroy(compositor);
 	wl_registry_destroy(registry);
@@ -2128,12 +2129,17 @@ void VulkanExampleBase::initWaylandConnection()
 	wl_registry_add_listener(registry, &registry_listener, this);
 	wl_display_dispatch(display);
 	wl_display_roundtrip(display);
-	if (!compositor || !shell || !seat)
+	if (!compositor || !shell)
 	{
 		std::cout << "Could not bind Wayland protocols!\n";
 		fflush(stdout);
 		exit(1);
 	}
+	if (!seat)
+	{
+		std::cout << "WARNING: Input handling not available!\n";
+		fflush(stdout);
+	}
 }
 
 void VulkanExampleBase::setSize(int width, int height)