[MacPorts] #31531: sane-backends: USB support requested but required libraries not found

[MacPorts]

#31531: sane-backends: USB support requested but required libraries not found
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 Reporter:  sjd4@…            |       Owner:  aguynamedryan+sane@…        
     Type:  defect            |      Status:  new                         
 Priority:  Normal            |   Milestone:                              
Component:  ports             |     Version:  2.0.3                       
 Keywords:                    |        Port:  sane-backends               
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Comment(by aguynamedryan+macports@…):

 sjd4, I see you're using Lion (Mac OS X 10.7).  I have yet to upgrade so
 I'm (successfully) configuring under Snow Leopard (Mac OS X 10.6).

 I have three guesses:
  1. Does Lion include its own libusb?  If so, maybe it's missing
 usb_interrupt_read?  Seems unlikely, but it's my best first guess.
  2. Maybe configure's test usb_interrupt_read isn't happy working under
 llvm-gcc?
  3. Some of your libraries have been built with +universal and maybe
 there's a problem there?

 I'm attaching my main.log if you want to diff the two...

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Ticket URL: <https://trac.macports.org/ticket/31531#comment:2>
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