GPS time data

Hi,
I want to use GPS time data for synchronization of two USRP boards. I
already have the USRP daughterboard for GPS.
I came accross with gps-sdr but it seems does not work with the latest
GNU
Radio. I get some compiling errors.
I do not know if it has already been done, or is there any project going
on.
Any help would be appreciated.
Thanks in advance