[MacPorts] #62063: mesa @19.0.8_0+osmesa+python27 patch failure on 10.6

[MacPorts]

#62063: mesa @19.0.8_0+osmesa+python27 patch failure on 10.6
-----------------------+-------------------------------
  Reporter:  rmottola  |      Owner:  jeremyhu
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  patch snowleopard
      Port:  mesa      |
-----------------------+-------------------------------

Comment (by ballapete):

 There seems to be another bug, because `port echo dependentof:mesa`
 reports:
 {{{
 cairo
 freeglut
 gtk3
 libGLU
 }}}

 but `port -vd upgrade libspectre` leads to the build failure of `mesa`.

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Ticket URL: <https://trac.macports.org/ticket/62063#comment:10>
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