(tex-mode): Recognize \NeedsTeXFormat{LaTeX2e}.

diff --git a/lisp/textmodes/tex-mode.el b/lisp/textmodes/tex-mode.el
index e52cb73..953b3d2 100644 (file)
--- a/lisp/textmodes/tex-mode.el
+++ b/lisp/textmodes/tex-mode.el
@@ -263,7 +263,7 @@ says which mode to use."
                                    (beginning-of-line)
                                    (search-forward "%" search-end t))))))
       (if (and slash (not comment))
-         (setq mode (if (looking-at "documentstyle\\|documentclass\\|begin\\b")
+         (setq mode (if (looking-at "documentstyle\\|documentclass\\|begin\\b\\|NeedsTeXFormat{LaTeX")
                          (if (looking-at
                              "document\\(style\\|class\\)\\(\\[.*\\]\\)?{slides}")
                              'slitex-mode