Index: lib/libc/sys/wait.2 =================================================================== --- lib/libc/sys/wait.2 +++ lib/libc/sys/wait.2 @@ -28,7 +28,7 @@ .\" @(#)wait.2 8.2 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" -.Dd December 3, 2013 +.Dd May 12, 2016 .Dt WAIT 2 .Os .Sh NAME @@ -596,6 +596,14 @@ fields of .Fa infop must be checked against zero to determine if a process reported status. +.Pp +.Fn wait +called with -1 to wait for any child process will ignore a child that is +referenced by a process descriptor (see +.Xr pdfork 2 ) . +Specific processes can still be waited on by specifying the process ID +or descriptor (see +.Xr pdwait 4 ) . .Sh ERRORS The .Fn wait