bug fix in ax_broken_libxml.m4
bug fix in ax_broken_libxml.m4

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