did you do the autogen.sh and the configure steps, and did they finnish without errors?

And!!!

Important: are you trying to compile 0.8.7.3 or 0.9.3.1?

The process I described is for 0.9.3.1

For 0.8.7.3 do this:

cd src make -f Makefile.unix

This will compile the daemon

I need to check for the GUI, but again the description how to do it should be either in README.md or in the /doc directory