standards/99517: Missing SIGRTMIN and SIGRTMAX signals

Timur I. Bakeyev timur at
Tue Jun 27 02:20:28 UTC 2006

>Number:         99517
>Category:       standards
>Synopsis:       Missing SIGRTMIN and SIGRTMAX signals
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-standards
>State:          open
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jun 27 02:20:15 GMT 2006
>Originator:     Timur I. Bakeyev
>Release:        FreeBSD 6.1-STABLE i386

System: FreeBSD 6.1-STABLE #0: Tue Jun 20 02:38:12 CEST 2006
    root at


It was a great surprise to me to find out that signal.h (or, in fact, sys/signal.h) doesn't contain definition of such a basic POSIX signal related constants as SIGRTMIN and SIGRTMAX. 

They described for example here:

Moreover it's even mentioned in file itself:


Absence of this variables makes porting of POSIX-compliant applications harder as well as lowers general POSIX-compliance of FreeBSD.

Actually, signal.h looks quite scary with all that:
 * XXX missing SIG_HOLD.

 * XXX missing SIGEV_THREAD.


 less /usr/include/sys/signal.h


It'll be nice if that definitions were added to the signal.h ASAP. I don't see any strong reason not to have them.

With regards,
Timur Bakeyev.


More information about the freebsd-standards mailing list