mesa-19.2.2

   CC           libXNVCtrlAttributes/NvCtrlAttributes.c
In file included from /usr/include/GL/gl.h:2055,
                 from /usr/include/GL/glx.h:32,
                 from glxinfo.h:23,
                 from glxinfo.c:28:
/usr/include/GL/glext.h:56:10: fatal error: KHR/khrplatform.h: No such file or directory
   56 | #include <KHR/khrplatform.h>
      |          ^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/GL/gl.h:2055,
                 from /usr/include/GL/glx.h:32,
                 from glxinfo.h:23,
                 from command-line.c:32:
/usr/include/GL/glext.h:56:10: fatal error: KHR/khrplatform.h: No such file or directory
   56 | #include <KHR/khrplatform.h>
      |          ^~~~~~~~~~~~~~~~~~~
compilation terminated.