libgwyddion2-0 : Depends: libgtkglext1 but it is not going to be installed
                  Depends: libpango-1.0-0 (>= 1.14.0) but it is not going to be installed
                  Depends: libpangocairo-1.0-0 (>= 1.14.0) but it is not going to be installed
                  Depends: libpangoft2-1.0-0 (>= 1.14.0) but it is not going to be installed