Ticket #4541: fix-theme-path-logic.diff

wp-includes/theme.php

@@ -98 +98 @@
        $themes = array();
        $wp_broken_themes = array();
        $theme_root = get_theme_root();
+       if (ABSPATH != '/') {
        $theme_loc = str_replace(ABSPATH, '', $theme_root);
+       }
+       else {
+               $theme_loc = $theme_root;
+       }
 
        // Files in wp-content/themes directory and one subdir down
        $themes_dir = @ dir($theme_root);