[MacPorts] #43805: zathura @0.2.7 buildt fails on SL

[MacPorts]

#43805: zathura @0.2.7 buildt fails on SL
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  Reporter:  starkhalo@…  |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.0
Resolution:               |   Keywords:  haspatch maintainer
      Port:  zathura      |
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Comment (by ryandesign@…):

 The version of Xcode is not tied to the version of the Xcode command line
 tools in all cases. Users can forget to update one or the other. On Snow
 Leopard, although they are tied together, Xcode 3.2.6, which is the latest
 free version and therefore the recommended version for Snow Leopard, uses
 gcc-4.2; Xcode 4.x for Snow Leopard is not free, and can only be obtained
 by paying Apple for a developer membership. compiler.blacklist is the
 correct solution for this issue.

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Ticket URL: <https://trac.macports.org/ticket/43805#comment:3>
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