Can't compile

[eberkund]

Hi, I am back.

When I try to call the following code,

        static INIT: Once = ONCE_INIT;
        INIT.call_once(|| unsafe {
            ffi::bcm_host_init();
            ffi::vcos_init();
            ffi::mmal_vc_init();
        });

I get this error,

  = note: /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_queue_destroy'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_log_category'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_queue_get'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_status_to_string'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_port_alloc'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_buffer_header_driver_data'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_event_format_changed_get'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_component_action_trigger'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_format_extradata_alloc'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_queue_put'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_buffer_header_replicate'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_port_free'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_ports_alloc'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_component_supplier_register'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_buffer_header_release'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_format_copy'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_event_error_send'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_component_action_register'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_port_event_get'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_4cc_to_string'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_port_event_send'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_port_buffer_header_callback'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_ports_free'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_queue_create'
          /opt/vc/lib/libmmal_vc_client.so: undefined reference to `mmal_queue_length'
          collect2: error: ld returned 1 exit status

If I can still compile the code which includes the mmal-sys library and even reference other functions and constants but this initialization code fails for some reason.