m4_define(`hm_arg_timeval_in_rel_null', `struct timeval *$'`1')
m4_define(`hm_arg_must', `$'`1 $'`2')
m4_define(`hm_arg_socktype', `int $'`1')
m4_define(`hm_arg_timeval_in_rel_null', `struct timeval *$'`1')
m4_define(`hm_arg_must', `$'`1 $'`2')
m4_define(`hm_arg_socktype', `int $'`1')