[MacPorts] #63553: dvisvgm @2.12_0: fail to build on macOS 10.11.6

[MacPorts]

#63553: dvisvgm @2.12_0: fail to build on macOS 10.11.6
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  Reporter:  nortcele  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.1
Resolution:            |   Keywords:
      Port:  dvisvgm   |
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Comment (by nortcele):

 I have no such problem on 11.6, 10.15.7 and 10.14.6.

 I will also test on 10.12 and 10.13.

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Ticket URL: <https://trac.macports.org/ticket/63553#comment:6>
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