Compilation error on xen-unstable.hg

[Gihan Munasinghe <GMunasinghe@flexiant.com>]

Guys

I just did a hg pull from
http://xenbits.xensource.com/xen-unstable.hg

also tried from

http://xenbits.xensource.com/staging/xen-unstable.hg

when I try to build the tools directory I am getting the following error

/xenunstable/xen-unstable.hg/tools/ioemu-dir/vl.c: In function ‘main’:
/xenunstable/xen-unstable.hg/tools/ioemu-dir/vl.c:5812: warning: 
implicit declaration of function ‘dma_helper_init’
/xenunstable/xen-unstable.hg/tools/ioemu-dir/vl.c:5814: error: too few 
arguments to function ‘xc_interface_open’
make[3]: *** [vl.o] Error 1
make[3]: Leaving directory 
`/root/xenunstable/xen-unstable.hg/tools/ioemu-remote/i386-dm'
make[2]: *** [subdir-i386-dm] Error 2
make[2]: Leaving directory 
`/root/xenunstable/xen-unstable.hg/tools/ioemu-remote


Problematic code segment is
dma_helper_init();
xc_handle = xc_interface_open();

I have no idea on "dma_helper_init()" warning but, the according to 
xenctrl.h the prototype for "xc_interface_open()" is defined as

xc_interface *xc_interface_open(xentoollog_logger *logger,
xentoollog_logger *dombuild_logger,
unsigned open_flags);


Is this due to some partially updated code been in the repository or am 
I doing something wrong..

Thanks
Gihan