Update mainui. Add --enable-bsp2 switch into wscript

engine/wscript

@@ -8,8 +8,9 @@ import os
 top = '.'
 
 def options(opt):
-	# stub
-	return
+	opt.add_option(
+	    '--enable-bsp2', action = 'store_true', dest = 'SUPPORT_BSP2_FORMAT', default = False,
+		help = 'build engine with BSP2 map support(recommended for Quake, breaks compability!)')
 
 def configure(conf):
 	# check for dedicated server build
@@ -31,6 +32,9 @@ def configure(conf):
 			conf.fatal('SDL2 not availiable! If you want to build dedicated server, specify --dedicated')
 		conf.env.append_unique('DEFINES', 'XASH_SDL')
 
+	if(conf.options.SUPPORT_BSP2_FORMAT):
+		conf.env.append_unique('DEFINES', 'SUPPORT_BSP2_FORMAT')
+
 	if conf.env.DEST_OS == 'win32':
 		conf.check( lib='USER32' )
 		conf.check( lib='SHELL32' )