[systemd-devel] Cross-building systemd?

[Warpme]

Hi,
I want to build sytemd in cross-build environment.
One from many needed dependencies is libcap which is really old and 
isn't cross-build friendly.
It looks like libcap-ng is kind of successor and I can build this lib in 
my cross-build environment.
Is there any way to build systemd with libcap-ng ?
Or maybe there is possibility to build systemd without libcap?
Thx in advance!