i know exactly what you mean, but guide is correct for ubuntu 14.10
https://github.com/LIMX-SUPPORT/LimecoinX/blob/master/doc/build-masternode.md
...if you look at this step, so you get the right libdb4.8 packages over the bitcoin repository.
$ sudo apt-get install libboost1.54-all-dev
$ sudo add-apt-repository ppa:bitcoin/bitcoin
$ sudo apt-get install libdb4.8-dev libdb4.8++-dev
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how is it possible to solo mine without paying masternodes? we never released the new source without masternode payments & limx is open source...dont wanna do here any speculation....and this miner seems to pay now, problem fixed.