Commitc730dc7479("libcamera: geometry: Add operator<< for classes in geometry") added usage of std::ostream in geometry.h but forget to include the corresponding header. Fix it to avoid future compilation breakages if indirect inclusions are changed. Fixes:c730dc7479("libcamera: geometry: Add operator<< for classes in geometry") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>