ax_votca_tools.m4: make it work for not shared libs
ax_votca_tools.m4: make it work for not shared libs

MrTheodor/csg,votca/csg,votca/csg,MrTheodor/csg,junghans/csg,junghans/csg,junghans/csg,votca/csg,MrTheodor/csg,MrTheodor/csg,MrTheodor/csg,junghans/csg,junghans/csg,junghans/csg,votca/csg