wscript: fix SDL2 include path

engine/wscript

@@ -32,13 +32,16 @@ def configure(conf):
 			if(conf.options.SDL2_PATH):
 				conf.start_msg('Configuring SDL2 by provided path')
 				conf.env.HAVE_SDL2 = 1
-				conf.env.INCLUDES_SDL2 = [os.path.abspath(os.path.join(conf.options.SDL2_PATH, 'include'))]
+				conf.env.INCLUDES_SDL2 = [
+					os.path.abspath(os.path.join(conf.options.SDL2_PATH, 'include')),
+					os.path.abspath(os.path.join(conf.options.SDL2_PATH, 'include/SDL'))
+				]
 				libpath = 'lib'
 				if(conf.env.COMPILER_CC == 'msvc'):
 					libpath = 'lib/x86'
 				conf.env.LIBPATH_SDL2 = [os.path.abspath(os.path.join(conf.options.SDL2_PATH, libpath))]
 				conf.env.LIB_SDL2 = ['SDL2']
-				conf.end_msg('ok')
+				conf.end_msg('yes: {0}, {1}, {2}'.format(conf.env.LIB_SDL2, conf.env.LIBPATH_SDL2, conf.env.INCLUDES_SDL2))
 			else:
 				conf.fatal('SDL2 not availiable! If you want to build dedicated server, specify --dedicated')
 		conf.env.append_unique('DEFINES', 'XASH_SDL')