[cmake-developers] CustomCommand and collapsible paths.

[David Cole]

This topic itself looks simple enough, and it fixes the problem you've 
observed. I guess my question is, are there still other instances of 
this problem, and why wouldn't we want to do this for inputs *not* 
specified by full path? Shouldn't we infer the correct full path at 
add_custom_command time if it's not specified by full path? And 
shouldn't that too be normalized?

D