wxGUI: fix compilation

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@42106 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/globalvar.py

@@ -22,6 +22,7 @@ import locale
 import gettext
 gettext.install('grasswxpy', os.path.join(os.getenv("GISBASE"), 'locale'), unicode=True)
 
+sys.path.append(os.path.join(ETCDIR, "python"))
 import grass.script as grass
 
 # wxversion.select() called once at the beginning