/usr/bin/ld: main.c:(.text+0x1f1a): undefined reference to `ibv_get_device_name'
/usr/bin/ld: main.c:(.text+0x20de): undefined reference to `pp_get_port_info'
/usr/bin/ld: main.c:(.text+0x217c): undefined reference to `ibv_query_gid'
/usr/bin/ld: main.c:(.text+0x2491): undefined reference to `ibv_get_cq_event'
/usr/bin/ld: main.c:(.text+0x267c): undefined reference to `ibv_wc_status_str'
/usr/bin/ld: main.c:(.text+0x2ac9): undefined reference to `ibv_ack_cq_events'
/usr/bin/ld: main.c:(.text+0x2af2): undefined reference to `ibv_free_device_list'