Did you run `make includes' after you changed /sys/netinet/tcp_var.h so it
gets installed as /usr/include/netinet/tcp_var.h?

On Mon, Apr 01, 2002 at 10:13:18AM -0500, susan steven wrote:
> 
>  Hello. I worked on NetBSD 1.5.1(i386).I want to add a new sysctl variable 
> net.inet.tcp.myvariable to control whether to invoke my function. I added 
> entries for the new variables in tcp_var.h.
>  (#define TCPCTL_NAMES {
>                          ...
>                          {"myvriable",CTL_TYPE_INT}
>                           ...
>                          }
>   #define TCPCTL_VARIABLE {
>                            ...
>                            {1,0,&tcp_mynewvariable}
>                             ...
>                            }
> 
>   #define TCPCTL_MYNEWVARABLE 25
>   #define TCPCTL_MAXID        26 /*old value 25*/
>   extern int tcp_mynewvariavle;
> 
> I defined the new variable tcp_mynewvariable in tcp_subr.c. Then I 
> recompiled the
> kernel. After that I check out the /usr/basrsrc/sbin/sysctl using cvs and 
> recompile the sysctl.c in that directory. After I rebooted the machine, I 
> did not see any change. It seems that the new variable isn't existent.
>  when I repeat the steps above to change old sysctl variable' name, I can 
> still use the old variable with the new kernel. it seems that the change 
> does not take effect?
>  Could anyone to tell me what else I need to do to make the new variable 
> work? Do I need to recompile the whole library(c library)? How to do that?
> 
>  Thank you very much in advance.
> 
> Mary
> 
> 
> 
> 
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-- 
Juergen Hannken-Illjes - hannken@eis.cs.tu-bs.de - TU Braunschweig (Germany)