http://code.dlang.org/packages/iupd http://code.dlang.org/packages/nukleard
iupd removes all deprecated items in IUP, current version is IUP 3.18. nukleard may have some bugs in name mangling. Does a struct's field name like `null`, i changed it to null_, may be issue? Can pragma(mangle, "name") help in this context?
