[MacPorts] #42571: libpng headers are invalid with older versions of clang

[MacPorts]

#42571: libpng headers are invalid with older versions of clang
-------------------------+--------------------------
  Reporter:  jeremyhu@…  |      Owner:  ryandesign@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.2.1
Resolution:              |   Keywords:
      Port:  libpng      |
-------------------------+--------------------------
Changes (by devans@…):

 * cc: devans@… (added)


Comment:

 Confirming that this problem effects all versions of gimp2 (gimp2,
 gimp2-devel, gimp3-devel), gegl (gegl gegl-devel) and probably any
 dependent that includes <png.h>.

 Upstream patch in response to issue 220 can be found here:
 http://sourceforge.net/p/libpng/code/ci/dd6679dce8e03e8874ca758440b51c50d11d9890/

-- 
Ticket URL: <https://trac.macports.org/ticket/42571#comment:2>
MacPorts <http://www.macports.org/>
Ports system for OS X