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<p>I'm building PV 5.3-RC2 on a Mac OSX 10.12 and the build is getting hosed. (the build fails while building ParaView, can't find a missing <png.h> include file). When PVSB configures Paraview, it is setting the cmake flag VTK_USE_SYSTEM_PNG=ON and it
should be OFF. In the top level cmake, the value is set to OFF.</p>
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<div>292 mac> grep PNG CMakeCache.txt<br>
VTK_USE_SYSTEM_PNG:UNINITIALIZED=OFF</div>
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If I re-run cmake in the paraview build directory and turn off VTK_USE_SYSTEM_PNG, I get a clean build.</div>
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