There is a repository which contains compiled packages directly created by qMp project or related with.
It can be found here:
Where XXXX is the name of the target architecture, some examples are:
- ar71xx for Ubnt Airmax such as NanoStation M5 or Rocket M5. Also most of TpLink and many other devices
- atheros for fonera o Picostation2
- x86 for Alix boards (any)
It can be used for "opkg" by adding the next line to the file /etc/opkg.conf
src/gz qmp http://repo.qmp.cat/arch/ar71xx/packages/
Then "opkg update && opkg install qmp-small-node" should be enough to install the whole system.