game_launch: convert to include targets usage

game_launch/wscript

@@ -21,21 +21,16 @@ def configure(conf):
 	conf.define_cond('XASH_DISABLE_MENU_CHANGEGAME', conf.options.DISABLE_MENU_CHANGEGAME)
 
 def build(bld):
-	source = ['game.cpp']
-	includes = '. ../common ../public'
-	libs = []
-
+	libs = ['sdk_includes']
 	if bld.env.DEST_OS != 'win32':
 		libs += [ 'DL' ]
 	else:
 		libs += ['USER32', 'SHELL32']
 		source += ['game.rc']
 
-	bld(
-		source   = source,
+	bld(source = 'game.cpp',
 		target   = 'xash3d', # hl.exe
 		features = 'c cxx cxxprogram',
-		includes = includes,
 		use      = libs,
 		rpath    = '$ORIGIN',
 		install_path = bld.env.BINDIR,