Bunch of warnings

Bunch of warnings and the possible patch for it.
Stole it from a drupal 6 calendar issue.

Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 53 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 54 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 55 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 56 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 57 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 58 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 59 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 60 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_page->options() (line 61 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_page.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 56 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 57 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 58 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 59 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 60 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 61 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 62 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 63 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).
Warning: Attempt to modify property of non-object in calendar_plugin_display_block->options() (line 64 of C:\xampp\htdocs\drupal2\sites\all\modules\calendar\includes\calendar_plugin_display_block.inc).