kern/48484: Please, add sem_timedwait()

[diro%nixsyspaus.org@localhost]

>Number:         48484
>Category:       kern
>Synopsis:       Please, add sem_timedwait()
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Sun Dec 29 22:45:00 +0000 2013
>Originator:     diro%nixsyspaus.org@localhost
>Release:        NetBSD 6.1.2
>Organization:
>Environment:
System: NetBSD sammy 6.99.23 NetBSD 6.99.23 (GENERIC) #0: Thu Aug 15 00:59:23 
CEST 2013 
instsoft@yosemite:/tmp/netbsd-drmgem.usr/src/sys/arch/amd64/compile/GENERIC 
amd64

Architecture: amd64
Machine: amd64
>Description:
        How did we get all the semaphore declarations but not this one?
        
http://pubs.opengroup.org/onlinepubs/009695399/functions/sem_timedwait.html
>How-To-Repeat:
        Be packaging pypy and watch it not pass the first 10 seconds of the 
build.
>Fix:
        Add it!