how                60 libdb/compat.h #define	sigprocmask(how, set, oset)					\
how                62 libdb/compat.h 	(((how) == SIG_BLOCK) ?						\
how                64 libdb/compat.h 	(((how) == SIG_UNBLOCK) ?					\
how                66 libdb/compat.h 	((how) == SIG_SETMASK ?						\