[MacPorts] #26301: openjdk6-b16-1 Build fail on Core Solo CPU

[MacPorts]

#26301: openjdk6-b16-1 Build fail on Core Solo CPU
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 Reporter:  daniel.hjort@…                       |       Owner:  macports-tickets@…                   
     Type:  defect                               |      Status:  new                                  
 Priority:  Normal                               |   Milestone:                                       
Component:  ports                                |     Version:  1.9.1                                
 Keywords:  haspatch                             |        Port:  openjdk6                             
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 The build failed on a Core Solo Mac Mini.

 Log:
 cd bsd_i486_compiler2/product && /usr/bin/make
 make: the `-j' option requires a positive integral argument

 This line in the Portfile is wrong:
 HOTSPOT_BUILD_JOBS=[expr [exec sysctl -n hw.ncpu] - 1]

 Expression evaluates to 0 on single core machines. In patch changed to +1
 which is common for build optimization.

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Ticket URL: <http://trac.macports.org/ticket/26301>
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