Use `org-outline-regexp' instead or `outline-regexp'. Also use the
new defconst `org-outline-regexp-bol' to match `org-outline-regexp'
at the beginning of line.
* org.el (org-outline-regexp-bol): New defconst.
(org-outline-level, org-set-font-lock-defaults, org-cycle)
(org-overview, org-content, org-flag-drawer)
(org-first-headline-recenter, org-insert-todo-heading)
(org-map-region, org-move-subtree-down, org-paste-subtree)
(org-kill-is-subtree-p, org-context-p, org-refile)
(org-refile-new-child, org-toggle-comment, org-todo)
(org-add-planning-info, org-add-log-setup, org-scan-tags)
(org-set-tags, org-insert-property-drawer)
(org-prepare-agenda-buffers, org-preview-latex-fragment)
(org-speed-command-default-hook, org-check-for-hidden)
(org-toggle-item, org-toggle-heading)
(org-indent-line-function, org-set-autofill-regexps)
(org-fill-paragraph, org-toggle-fixed-width-section)
(org-yank-generic, org-yank-folding-would-swallow-text)
(org-first-sibling-p, org-goto-sibling)
(org-goto-first-child, org-show-entry): Use
`org-outline-regexp' and `org-outline-regexp-bol'.
* org-remember.el (org-remember-handler): Use
`org-outline-regexp-bol'.
* org-mouse.el (org-mouse-match-todo-keyword, org-mode-hook)
(org-mouse-move-tree, org-mouse-transform-to-outline): Use
`org-outline-regexp' and `org-outline-regexp-bol'.
* org-macs.el (org-with-limited-levels)
(org-get-limited-outline-regexp): Use `org-outline-regexp'.
* org-indent.el (org-indent-outline-re)
(org-indent-refresh-section, org-indent-refresh-to): Use
`org-outline-regexp' and `org-outline-regexp-bol'.
* org-html.el (org-export-as-html): Use
`org-outline-regexp-bol'.
* org-footnote.el (org-footnote-at-definition-p)
(org-footnote-normalize): Use `org-outline-regexp' and
`org-outline-regexp-bol'.
* org-exp.el (org-export-preprocess-string): Don't redefine
`outline-regexp'.
* org-docbook.el (org-export-as-docbook): Use
`org-outline-regexp-bol'.
* org-colview.el (org-columns, org-columns-compute): Use
`org-outline-regexp' and `org-outline-regexp-bol'.
* org-colview-xemacs.el (org-columns, org-columns-compute):
Use `org-outline-regexp-bol'.
* org-clock.el (org-clock-insert-selection-line)
(org-clock-in, org-clock-out, org-dblock-write:clocktable):
Use `org-outline-regexp' and `org-outline-regexp-bol'.
* org-ascii.el (org-export-as-ascii)
(org-export-ascii-push-links): Use `org-outline-regexp' and
`org-outline-regexp-bol'.
* org-archive.el (org-archive-to-archive-sibling)
(org-archive-all-done): Use `org-outline-regexp' and
`org-outline-regexp-bol'.
* org-agenda.el (org-agenda, org-search-view)
(org-agenda-list-stuck-projects, org-agenda-get-timestamps)
(org-agenda-get-progress, org-agenda-get-blocks): Use
`org-outline-regexp' and `org-outline-regexp-bol'.