BIND 10 #323: configure try harder to find boost headers

[BIND 10 Development]

#323: configure try harder to find boost headers
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  Reporter:  jreed         |            Owner:  jreed
      Type:  defect        |           Status:  new  
  Priority:  major         |        Milestone:       
 Component:  build system  |         Keywords:       
 Sensitive:  0             |   Estimatedhours:  0    
     Hours:  0             |         Billable:  1    
Totalhours:  0             |         Internal:  0    
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 Have ./configure try to find boost includes. Include some common paths to
 look in:

 /usr/pkg/include
 /usr/local/include
 /opt/include
 /opt/local/include

 Goal is to have less need for command line switch used with ./configure

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Ticket URL: <https://bind10.isc.org/ticket/323>
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