[Asterisk-bsd] OpenBSD and Zaptel

[Klemen Vičič]

Hello

I have an sistem with OpenBSD 4.1 on whitch have to compile Zaptel.
I try from source but with Zaptel get:
...
gmake[3]: Leaving directory `/usr/src/zaptel-1.4.5.1/menuselect'
gmake[2]: Leaving directory `/usr/src/zaptel-1.4.5.1/menuselect'
You do not appear to have the sources for the 4.1 kernel installed.
gmake[1]: *** [modules] Error 1
gmake[1]: Leaving directory `/usr/src/zaptel-1.4.5.1'
gmake: *** [all] Error 2

I can't find any information hot wo install kernel source on openbsd. I 
put kernel source in /usr/src/sys but doesn't help.

So have anyone any expiriences with Zaptel  installation under Openbsd ?

Thanks