I also noticed that behaviour in debian 8.0. The psxy keeps on closing polygons even when the -L option is not given. Also, when I recompiled the gmt-4.5.12 supplied by debian (apt-get source) without applying the patches everything worked. This bug renders the package unusable.
I also noticed that behaviour in debian 8.0. The psxy keeps on closing polygons even when the -L option is not given. Also, when I recompiled the gmt-4.5.12 supplied by debian (apt-get source) without applying the patches everything worked. This bug renders the package unusable.