[Dune] -L/path/to/library should go into library_LIBS

[Christian Engwer]

Hi,

> I opened a Flyspry bug
> (http://www.dune-project.org/flyspray/index.php?do=details&task_id=566) about
> the use of the linker search path flag -L in *_LDFLAGS variables.  I believe I
> have the correct thing to do figured out but would like your comments.

recently I discussed exactly this point with Oliver and we came to the
same conclusion. Best is to just use variable.

I'd say ``go ahead!''

Christian