Compilation of Xen 4.2 Utils breaks on NetBSD 6

[Lukas Laukamp <lukas%laukamp.me@localhost>]

Hey all,

I trying to compile Xen 4.2 on NetBSD 6. The hypervisor it self compiled 
fine but the compilation of the utils breaks with this error:

In file included from xl_cmdimpl.c:40:0:
libxl_json.h:18:27: fatal error: yajl/yajl_gen.h: No such file or directory
compilation terminated.
gmake[3]: *** [xl_cmdimpl.o] Error 1
gmake[3]: Leaving directory `/root/xen-4.2.0/tools/libxl'
gmake[2]: *** [subdir-install-libxl] Error 2
gmake[2]: Leaving directory `/root/xen-4.2.0/tools'
gmake[1]: *** [subdirs-install] Error 2
gmake[1]: Leaving directory `/root/xen-4.2.0/tools'
gmake: *** [install-tools] Error 2
testdom0#

I passed the needed options to the configure script so that it searches 
in /usr/pkg/include/ and /usr/pkg/lib and so on. The file which is 
declaired to don't exist, exists in /usr/pkg/include/yajl/ so I don't 
understand why the file could not be found.

Hope that someone could help me.

Best Regards