It can be -- that was part of my point. Good example is the GNU readline library -- this is GPL, not LGPL. So you can't call it without making your work a der

It can be -- that was part of my point. Good example is the GNU readline library -- this is GPL, not LGPL. So you can't call it without making your work a derivative. Or maybe you can in some cases. Again, it is not really clear by just reading the license (and the license can claim on thing, but the courts may not agree)