Explain the relationship to POSIX.

This commit is contained in:
wollman 2003-06-20 22:41:00 +00:00
parent 32040dcc61
commit b3881d77f4

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@ -75,6 +75,20 @@ set to
.Xr sigprocmask 2 ,
.Xr sigsuspend 2 ,
.Xr sigvec 2
.Sh STANDARDS
The
.Fn sigpause
function is implemented for compatibility with historic
.Bx 4.3
applications.
An incompatible interface by the same name, which used a single signal number
rather than a mask, was present in
.At V ,
and was copied from there into the
.Sy X/Open System Interfaces
.Pq Tn XSI
option of
.St -p1003.1-2001 .
.Sh HISTORY
The
.Fn sigpause