[Rivet] Compiling an HZTool main program

[Leif Lönnblad]

Hannes Jung wrote:
> i have now checked in the missing get_var routine. The hwbgen rotuine  
> is coming from fortran herwig, so this has to be linked, if you call  
> hzhwavrg.F

It would be nice if routines, such as hzhwavrg.F, were collected in a
separate lib, so that it would be possible to run HZtool without linking
to fortran herwig (I'm sure this was possible before).

Cheers,
Leif