[MacPorts] #16666: Update apple-gcc42 to rev 5564 and include c++ suport

[MacPorts]

#16666: Update apple-gcc42 to rev 5564 and include c++ suport
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 Reporter:  illogical1@…                          |       Owner:  mww@…           
     Type:  defect                                |      Status:  new             
 Priority:  Normal                                |   Milestone:  Port Bugs       
Component:  ports                                 |     Version:  1.6.0           
 Keywords:  apple-gcc42 c++ inline-asm apple gcc  |        Port:  apple-gcc42     
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Comment(by ryandesign@…):

 Obviously we can't have a port installing a compiler to /usr so that will
 have to be fixed before this can be accepted. There seem to also be a
 number of other to-dos mentioned in the new portfile's comments.

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Ticket URL: <http://trac.macports.org/ticket/16666#comment:10>
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