Are you having the problems with the current builds?
That is if you update using the steps:
echo "src mraa-upm http://iotdk.intel.com/repos/1.1/intelgalactic" > /etc/opkg/mraa-upm.conf
opkg update
opkg install libmraa0
Do you have the same issue... Note: if you build using cross compiler with eclipse you should update the headers and libs there as well
Kurt