[MacPorts] #16368: frotz: enable parallel build

[MacPorts]

#16368: frotz: enable parallel build
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 Reporter:  ryandesign at macports.org  |       Owner:  pack-darwinports at rattus.net
     Type:  enhancement              |      Status:  new                        
 Priority:  Normal                   |   Milestone:  Port Enhancements          
Component:  ports                    |     Version:  1.7.0                      
 Keywords:                           |  
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 I recommend adding "`use_parallel_build yes`" to the port. It makes it
 build faster on multi-processor systems. If you have no objection I will
 be happy to commit this change.

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Ticket URL: <http://trac.macports.org/ticket/16368>
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