wxGUI/psmap: define path for standalone app

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49466 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/psmap/frame.py

@@ -35,6 +35,8 @@ except ImportError:
 
 import grass.script as grass
 
+if __name__ == "__main__":
+    sys.path.append(os.path.join(os.getenv('GISBASE'), 'etc', 'gui', 'wxpython'))
 from core             import globalvar
 from gui_core.menu    import Menu
 from gui_core.goutput import CmdThread, EVT_CMD_DONE