further attempt to debug undefined Windows behaviour
further attempt to debug undefined Windows behaviour

MichaelClerx/libcellml,libcellml/buildbot-testing,nickerso/libcellml,hsorby/libcellml,libcellml/buildbot-testing,nickerso/libcellml,nickerso/libcellml,MichaelClerx/libcellml,nickerso/libcellml,MichaelClerx/libcellml,cellml/libcellml,cellml/libcellml,hsorby/libcellml,hsorby/libcellml,cellml/libcellml,cellml/libcellml,hsorby/libcellml