[MacPorts] #19067: Ensure correct compiler is used in swi-prolog

[MacPorts]

#19067: Ensure correct compiler is used in swi-prolog
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 Reporter:  mcalhoun@…             |       Owner:  J.Wielemaker@…     
     Type:  enhancement            |      Status:  new                
 Priority:  Normal                 |   Milestone:  Port Enhancements  
Component:  ports                  |     Version:  1.7.0              
 Keywords:                         |        Port:  swi-prolog         
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 Since swi-prolog runs configure scripts during the build phase,
 setting[[BR]]
 the CC environmental variable is required for them to get the correct
 compiler.

 Attached is a proposed solution.

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Ticket URL: <http://trac.macports.org/ticket/19067>
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