gpsd and as-needed patches

Hello! Hopefully this is right place to send patches since I don't have access to tracker. I'm sending two patches against latest git version. First one is updating gpsd support since new gpsd have few functions changed: I've #ifdefed each offending function, so you can check each function in configure process or just wrap everything inside same #ifdef, depending on your wish. I have #defined timeout, but it can be done as variable if you think 2000 miliseconds is not good for everybody. Other patch is just quick hack to support --as-needed linker flag, so osmocombb can compile fine on distros which enforce such flag. In order, to read more about flag, read here: http://www.gentoo.org/proj/en/qa/asneeded.xml (In short, order of flags do matter) Hope it helps, -- Vlatko Kosturjak - KoSt