[MacPorts] #37177: Fix mesa installed headers

[MacPorts]

#37177: Fix mesa installed headers
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  Reporter:  michaelld@…  |      Owner:  jeremyhu@…
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.1.2
Resolution:               |   Keywords:
      Port:  mesa         |
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Description changed by michaelld@…:

Old description:

> Mesa installs the header ${prefix}/include/VG/vgplatform.h, which
> internally #include's <>. This header is found in, but not installed by,
> Mesa, and required when checking to see if OpenVG works. I'm attaching a
> simple patch that changes the Mesa install to include this header.

New description:

 Mesa installs the header ${prefix}/include/VG/vgplatform.h, which
 internally #include's <KHR/khrplatform.h>. This header is found in, but
 not installed by, Mesa, and required when checking to see if OpenVG works.
 I'm attaching a simple patch that changes the Mesa install to include this
 header.

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Ticket URL: <https://trac.macports.org/ticket/37177#comment:2>
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