Do not return from usererr
Do not return from usererr

The standard says that the compilation process must stop after
an #error directive.

k0gaMSX/scc,k0gaMSX/kcc,k0gaMSX/kcc,k0gaMSX/scc,k0gaMSX/scc,8l/scc,8l/scc,8l/scc