error: use of undeclared identifier 'close'

[yurivict]

--- src/CMakeFiles/zm.dir/zm_local_camera.cpp.o ---
/disk-samsung/freebsd-ports/multimedia/zoneminder/work/zoneminder-1.36.5/src/zm_local_camera.cpp:1190:3: error: use of undeclared identifier 'close'
  close(vid_fd);
  ^
/disk-samsung/freebsd-ports/multimedia/zoneminder/work/zoneminder-1.36.5/src/zm_local_camera.cpp:1290:3: error: use of undeclared identifier 'close'
  close(enum_fd);
  ^
/disk-samsung/freebsd-ports/multimedia/zoneminder/work/zoneminder-1.36.5/src/zm_local_camera.cpp:1569:17: warning: format specifies type 'unsigned long long' but the argument has type 'v4l2_std_id' (aka 'unsigned long') [-Wformat]
              , input.std );
                ^~~~~~~~~
/disk-samsung/freebsd-ports/multimedia/zoneminder/work/zoneminder-1.36.5/src/zm_local_camera.cpp:1574:30: warning: format specifies type 'unsigned long long' but the argument has type 'v4l2_std_id' (aka 'unsigned long') [-Wformat]
              , input.index, input.std);
                             ^~~~~~~~~
/disk-samsung/freebsd-ports/multimedia/zoneminder/work/zoneminder-1.36.5/src/zm_local_camera.cpp:1788:5: error: use of undeclared identifier 'close'
    close(vid_fd);
    ^
--- onvif/proxy/CMakeFiles/zmonvifproxy.dir/all ---

Version: 1.36.5
OS: FreeBSD 13

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[connortechnology]

@Carbenium do you think this would be solved by using std::close instead of close?
Or perhaps we just need to include #include <unistd.h>