fix makeSKIRT for building on Cosma - again
fix makeSKIRT for building on Cosma - again

raesjo/SKIRTcorona,raesjo/SKIRT,SKIRT/SKIRT,SKIRT/SKIRT,raesjo/SKIRT,raesjo/SKIRTcorona,SKIRT/SKIRT,raesjo/SKIRT,raesjo/SKIRTcorona