[Omake] filter-proper-targets

[Alain Frisch]

Hello,

What is the semantics of filter-proper-targets?  The manual says:

filter-proper-targets: the result is the list of files that can be built 
in the current project.

 From my experiments, I found out that attaching a dependency to a file 
forces omake to consider it as a proper target, even if no build rule is 
provided. (I use this technique to attach tags to files, and according 
to the description of filter-proper-targets, it wouldn't work to attach 
the dependency to another dummy file instead.)

Maybe the behavior of filter-proper-target should be fixed. Or is there 
another way to discover whether a target has an associated build rule or 
not?


   Alain