cmake DOPENSUBDIV_HAS_PTEX examples

PixarAnimationStudios/OpenSubdiv CMakeLists.txt :638 

add_definitions(
        -DOPENSUBDIV_HAS_PTEX
        -DPTEX_STATIC
    )

lighttransport/tinyusdz src/osd/CMakeLists.txt :613 

add_definitions(
        -DOPENSUBDIV_HAS_PTEX
        -DPTEX_STATIC
    )