[MacPorts] #57688: radare2 @3.1.0_0: fails to build if older version active

[MacPorts]

#57688: radare2 @3.1.0_0: fails to build if older version active
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  Reporter:  mopihopi  |      Owner:  g5pw
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  radare2   |
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Comment (by stevecheckoway):

 I just noticed that poppler refuses to build if one is currently active. I
 think
 {{{
 conflicts_build ${name}
 }}}
 is what causes MacPorts to print the error message. I don't have time
 right now to test this, but this may be a reasonable work around until
 upstream fixes their bug.

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Ticket URL: <https://trac.macports.org/ticket/57688#comment:7>
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