Glib.Message@gtkdoc glib glib-Message-Logging
val log_level : [< log_level | `CUSTOM of int ] -> intval set_log_handler :
?domain:string ->
levels:log_level list ->
(level:int -> string -> unit) ->
log_handlerval remove_log_handler : log_handler -> unitval set_always_fatal : log_level list -> unitval set_fatal_mask :
?domain:string ->
[ log_level | `CUSTOM of int ] list ->
unit