trying to build opencv 4.5.5 with opengl 4.6 (and libgtkglext1/libgtkglext1-dev) causes an error in Cmake
Cmake Error in modules/highgui/CMakeLists.txt
imported target "ocv.3rdparty.gtkglext"includes non-existent path
/usr/lib/aarch64-linux-gnu exists, but the gtkglext-1.0 dir does not
libgtkglext1 include files are in /usr/include/gtkglext-1.0
how do i make CMake look in the right spot for these include files?