--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmake_modules/FindSDL1or2.cmake	Mon Oct 28 16:53:20 2013 +0100
@@ -0,0 +1,24 @@
+find_package(SDL QUIET)
+
+if(NOT SDL_FOUND)
+    find_package(SDL2 REQUIRED)
+    set(SDL_INCLUDE_DIR ${SDL2_INCLUDE_DIR})
+    set(SDL_LIBRARY ${SDL2_LIBRARY})
+endif()
+
+if(NOT SDL_VERSION)
+    #find which version of SDL we have
+    find_file(sdlversion_h SDL_version.h ${SDL_INCLUDE_DIR})
+    if(sdlversion_h)
+        file(STRINGS ${sdlversion_h} sdl_majorversion_tmp REGEX "SDL_MAJOR_VERSION[\t' ']+[0-9]+")
+        file(STRINGS ${sdlversion_h} sdl_minorversion_tmp REGEX "SDL_MINOR_VERSION[\t' ']+[0-9]+")
+        file(STRINGS ${sdlversion_h} sdl_patchversion_tmp REGEX "SDL_PATCHLEVEL[\t' ']+[0-9]+")
+        string(REGEX MATCH "([0-9]+)" sdl_majorversion "${sdl_majorversion_tmp}")
+        string(REGEX MATCH "([0-9]+)" sdl_minorversion "${sdl_minorversion_tmp}")
+        string(REGEX MATCH "([0-9]+)" sdl_patchversion "${sdl_patchversion_tmp}")
+        set(SDL_VERSION "${sdl_majorversion}.${sdl_minorversion}.${sdl_patchversion}")
+    endif()
+endif()
+
+mark_as_advanced(sdlversion_h sdl_majorversion sdl_minorversion sdl_patchversion)
+