phablet@ubuntu-phablet:~$ apt-cache policy libudev-dev:armhf
libudev-dev:
  Installed: (none)
  Candidate: 219-7ubuntu6
  Version table:
     219-7ubuntu6 0
        500 http://ports.ubuntu.com/ubuntu-ports/ vivid-updates/main armhf Packages
     219-7ubuntu3 0
        500 http://ports.ubuntu.com/ubuntu-ports/ vivid/main armhf Packages
phablet@ubuntu-phablet:~$ sudo apt-get -s install libudev-dev:armhf
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  libudev-dev
0 upgraded, 1 newly installed, 0 to remove and 38 not upgraded.
Inst libudev-dev (219-7ubuntu6 Ubuntu:15.04/vivid-updates [armhf])
Conf libudev-dev (219-7ubuntu6 Ubuntu:15.04/vivid-updates [armhf])