Fix errors :

Fix errors :
prefs_dlg.c:1395:69: error: unused parameter ‘parent_w’ [-Werror=unused-parameter]
prefs_dlg.c:1414:19: error: initialization discards ‘const’ qualifier from pointer target type [-Werror]
prefs_dlg.c:1415:19: error: initialization discards ‘const’ qualifier from pointer target type [-Werror]
prefs_dlg.c:1417:19: error: initialization discards ‘const’ qualifier from pointer target type [-Werror]
prefs_dlg.c:1418:19: error: initialization discards ‘const’ qualifier from pointer target type [-Werror]
prefs_dlg.c:1419:19: error: initialization discards ‘const’ qualifier from pointer target type [-Werror]
prefs_dlg.c:1427:7: error: format not a string literal and no format arguments [-Werror=format-security]
prefs_dlg.c:1432:7: error: format not a string literal and no format arguments [-Werror=format-security]

svn path=/trunk/; revision=50724