> This had been long resisted on the grounds that this feature could be used to link emacs with non-free code. The way to ensure that modules are GPL compatibl

> This had been long resisted on the grounds that this feature could be used to link emacs with non-free code. The way to ensure that modules are GPL compatible is that they have to say that they are by exporting a symbol called "plugin_is_GPL_compatible"... and this is legally binding! Like Lawrence Lessig said, "code is law".