added cppused argument for BuildPlugin

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@4038 212acab6-be3b-0410-9dea-997c60f758d6

SConstruct

@@ -215,9 +215,12 @@ defenv.Alias('install-compiler', ins)
 def BuildPlugin(target, source, libs, examples = None, docs = None,
                 entry = 'DllMain', res = None, res_target = None,
                 resources = None, defines = None, flags = None, 
-                nodeflib = 1):
+                nodeflib = 1, cppused = 0):
 	env = plugin_env.Copy()
 
+	if cppused and env['CPP_REQUIRES_STDLIB']:
+		nodeflib = 0
+
 	if defines:
 		env.Append(CPPDEFINES = defines)
 	if flags: