Add Python error handling to video_images_getHEADmaster

If for any reason the data stream from the camera is no longer
available, without these checks the entire python interpreter crashes
with a nice segmentation fault.

These checks allow to handle the error from within Python with something
like:

    try:
        o3000.video_images_get()
    except RuntimeError:
        ... restart o3000 driver

Also, there is a change in the compilation flags to show more (useful)
warnings, i.e. -Wall and hide the "unused variable" warning.

0 files changed, 0 insertions, 0 deletions