How do you want to receive patches? I was not able to open a new ticket (whether Features or Bugs).
I will attach it here for now. This patch fixes up the unix makefiles somewhat. Makes it possible to crossbuild.
Here is another patch which just fixes up the name (uppercase M) and permissions (not executable) of the makefiles.
This patch deletes the build files for as6809 and aslink (which are gone).
Small improvement of the makewav usage message.