[asterisk-users] Dahdi 2.3.0.1 fails to compile in Xen DomU

[Chris Bagnall]

Greetings list,

I've compiled and installed dahdi countless times on standalone machines, 
but recently I've been trying to compile Dahdi in a Xen DomU without much 
success. The errors I'm seeing are as follows:

/var/tmp/portage/net-misc/dahdi-2.3.0.1/work/dahdi-linux-2.3.0.1/drivers/dahdi/zaphfc/base.c:1689: 
error: 'modes' undeclared (first use in this function)
/var/tmp/portage/net-misc/dahdi-2.3.0.1/work/dahdi-linux-2.3.0.1/drivers/dahdi/zaphfc/base.c:1689: 
error: (Each undeclared identifier is reported only once
/var/tmp/portage/net-misc/dahdi-2.3.0.1/work/dahdi-linux-2.3.0.1/drivers/dahdi/zaphfc/base.c:1689: 
error: for each function it appears in.)
/var/tmp/portage/net-misc/dahdi-2.3.0.1/work/dahdi-linux-2.3.0.1/drivers/dahdi/zaphfc/base.c:1689: 
error: 'modes' undeclared here (not in a function)

etc.

The DomU in question is running Gentoo Linux with a 2.6.34 Xenified kernel. 
I've tried stepping back to 2.6.32 and 2.6.31 kernels, as well as dropping 
dahdi back to 2.3.0 and 2.2.0, all without success.

I wouldn't be in the slightest bit surprised if I'm missing a kernel option 
somewhere, but I'm not sure where to start (or how best to diagnose such 
things). Is there a list of "required kernel options" for dahdi published 
anywhere I could consult, or has anyone else come across similar errors 
before?

Any suggestions gratefully appreciated.

Thanks in advance.

Regards,

Chris