CVT_PTR_NOCHECK  1439 extra_lib/include/png/pngconf.h #  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
CVT_PTR_NOCHECK  1447 extra_lib/include/png/pngconf.h #  define CVT_PTR_NOCHECK(ptr) (ptr)