lib/48614: pipe2(2) requires fcntl.h, which is not mentioned by manual

[sdaoden%gmail.com@localhost]

>Number:         48614
>Category:       lib
>Synopsis:       pipe2(2) requires fcntl.h, which is not mentioned by manual
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    lib-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 22 14:55:00 +0000 2014
>Originator:     steffen
>Release:        /jsonn
>Organization:
>Environment:
head as of january
>Description:

>How-To-Repeat:
cat <<__EOT > t.c
#include <unistd.h>
int main(void)
{
   int fds[2];
   pipe2(fds, O_CLOEXEC);
   return 0;
}
__EOT
cc -o zt t.c
>Fix:
--- pipe.2.orig 2014-02-22 15:48:55.000000000 +0100
+++ pipe.2      2014-02-22 15:49:23.000000000 +0100
@@ -41,6 +41,8 @@
 .In unistd.h
 .Ft int
 .Fn pipe "int fildes[2]"
+.In fcntl.h
+.In unistd.h
 .Ft int
 .Fn pipe2 "int fildes[2]" "int flags"
 .Sh DESCRIPTION