osx man page for sigstack

SIGSTACK(2)						      BSD System Calls Manual						       SIGSTACK(2)

NAME
     sigstack -- set and/or get signal stack context

DESCRIPTION
     The sigstack() function has been deprecated in favor of the interface described in sigaltstack(2).

SEE ALSO
     sigaltstack(2)

HISTORY
     The sigstack function call appeared in 4.2BSD.

4.2 Berkeley Distribution					   June 4, 1993 					 4.2 Berkeley Distribution