PrestaShop/PrestaShop — pull request #975 by ldecoker (2013-11-13 17:13:22+00:00)
Title: [-][FO] _PS_THEME_MOBILE_OVERRIDE_DIR_ not defined

When there is no mobile theme provided with the current theme, the variable _PS_THEME_MOBILE_OVERRIDE_DIR_ is not defined. We so get the following error in apache logs:

"PHP Notice: Use of undefined constant _PS_THEME_MOBILE_OVERRIDE_DIR_ - assumed '_PS_THEME_MOBILE_OVERRIDE_DIR_' in FrontController.php"