6.28.10 Migrating from Gforth 0.7

In this version, you can use \c, c-function and add-lib only inside c-library...end-c-library. add-lib now always starts from a clean slate inside a c-library, so you don’t need to use clear-libs in most cases.

If you have a program that uses these words outside c-library...end-c-library, just wrap them in c-library...end-c-library. You may have to add some instances of add-lib, however.