cmake: add find modules
Add Find{DRM,UDev,XCB}.cmake. Require 2.8.11 for FOUND_VAR support in
find_package_handle_standard_args().
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f2b5483..35ecafd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,10 +1,12 @@
# The name of our project is "XGL". CMakeLists files in this project can
# refer to the root source directory of the project as ${XGL_SOURCE_DIR} and
# to the root binary directory of the project as ${XGL_BINARY_DIR}.
-cmake_minimum_required (VERSION 2.6)
+cmake_minimum_required(VERSION 2.8.11)
project (XGL)
# set (CMAKE_VERBOSE_MAKEFILE 1)
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")
+
# Header file for CMake settings
include_directories("${PROJECT_SOURCE_DIR}/include")