[MacPorts] #23531: build warning: bin.v2/libs...tr1/pch.hpp.gch: not used because '__OPTIMIZE__' not defined

[MacPorts]

#23531: build warning: bin.v2/libs...tr1/pch.hpp.gch:  not used because
'__OPTIMIZE__' not defined
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 Reporter:  fleason@…       |       Owner:  macports-tickets@…                   
     Type:  defect          |      Status:  new                                  
 Priority:  Normal          |   Milestone:                                       
Component:  ports           |     Version:  1.8.2                                
 Keywords:                  |        Port:  boost                                
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Comment(by raphael@…):

 I had the same problem. After that a {{{sudo port clean boost && sudo port
 upgrade boost build.jobs=1}}} worked fine.

 So, {{{use_parallel_build no}}} should be added to the boost portfile.

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Ticket URL: <http://trac.macports.org/ticket/23531#comment:3>
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