CMakeLists change to make dolphin-emu working under Linux systems with system-wide SDL installed

gistfile1.diff

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a4dcf97..8878284 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -557,27 +557,10 @@ if(OPENAL_FOUND)
 endif()
 
 if(NOT ANDROID)
-	if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-		include(FindSDL2 OPTIONAL)
-	endif()
-	if(SDL2_FOUND)
-		message("Using shared SDL2")
-		include_directories(${SDL2_INCLUDE_DIR})
-	else(SDL2_FOUND)
-		# SDL2 not found, try SDL
-		if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-			include(FindSDL OPTIONAL)
-		endif()
-		if(SDL_FOUND)
-			message("Using shared SDL")
-			include_directories(${SDL_INCLUDE_DIR})
-		else(SDL_FOUND)
-			# TODO: Use the prebuilt one on Windows
-			message("Using static SDL from Externals")
-			include_directories(Externals/SDL/SDL Externals/SDL Externals/SDL/include)
-			add_subdirectory(Externals/SDL)
-		endif(SDL_FOUND)
-	endif(SDL2_FOUND)
+	# TODO: Use the prebuilt one on Windows
+	message("Using static SDL from Externals")
+	include_directories(Externals/SDL/SDL Externals/SDL Externals/SDL/include)
+	add_subdirectory(Externals/SDL)
 endif()
 
 include(FindLibUSB OPTIONAL)