Debugger entered--Lisp error: (void-variable LaTeX-amsmath-package-options)
  byte-code("\304\305!\210\010\306\031\211\032\203%\0\n@\211\021\013\235\203\032\0\013\210\202\036\0\011\013B\023\nA\211\022\204\f\0*\306\207" [LaTeX-amsmath-package-options elt --dolist-tail-- LaTeX-mathtools-package-options TeX-load-style "amsmath" nil] 3)
  load("/home/me/lisp/manual-installs/auctex/style/mathtools.elc" nil nil t)
  load-file("/home/me/lisp/manual-installs/auctex/style/mathtools.elc")
  TeX-load-style-file("/home/me/lisp/manual-installs/auctex/style/mathtools")
  TeX-load-style("mathtools")
  #f(compiled-function (style) #<bytecode 0x4a1f69>)("mathtools")
  mapcar(#f(compiled-function (style) #<bytecode 0x4a1f69>) ("latex2e" "article" "art10" "mathtools"))
  TeX-run-style-hooks("latex2e" "article" "art10" "mathtools")
  apply(TeX-run-style-hooks ("latex2e" "article" "art10" "mathtools"))
  TeX-auto-apply-entry((styles TeX-auto-file TeX-run-style-hooks))
  mapcar(TeX-auto-apply-entry ((styles TeX-auto-file TeX-run-style-hooks) ("symbol" TeX-auto-symbol TeX-add-symbols TeX-symbol-list TeX-symbol-changed) ("label" LaTeX-auto-label LaTeX-add-labels LaTeX-label-list LaTeX-label-changed) ("bibitem" LaTeX-auto-bibitem LaTeX-add-bibitems LaTeX-bibitem-list LaTeX-bibitem-changed) ("environment" LaTeX-auto-environment LaTeX-add-environments LaTeX-environment-list LaTeX-environment-changed) ("bibliography" LaTeX-auto-bibliography LaTeX-add-bibliographies LaTeX-bibliography-list LaTeX-bibliography-changed) ("index-entry" LaTeX-auto-index-entry LaTeX-add-index-entries LaTeX-index-entry-list LaTeX-index-entry-changed) ("pagestyle" LaTeX-auto-pagestyle LaTeX-add-pagestyles LaTeX-pagestyle-list LaTeX-pagestyle-changed) ("counter" LaTeX-auto-counter LaTeX-add-counters LaTeX-counter-list LaTeX-counter-changed) ("length" LaTeX-auto-length LaTeX-add-lengths LaTeX-length-list LaTeX-length-changed) ("savebox" LaTeX-auto-savebox LaTeX-add-saveboxes LaTeX-savebox-list LaTeX-savebox-changed)))
  TeX-auto-apply()
  TeX-update-style(t)
  #f(compiled-function () #<bytecode 0x4a4fe1>)()
  run-hooks(find-file-hook)
  after-find-file(nil t)
  find-file-noselect-1(#<buffer test.tex> "~/tmp/reftex-bug/test.tex" nil nil "~/tmp/reftex-bug/test.tex" (13502707 2305))
  find-file-noselect("~/tmp/reftex-bug/test.tex" nil nil t)
  find-file("~/tmp/reftex-bug/test.tex" t)
  funcall-interactively(find-file "~/tmp/reftex-bug/test.tex" t)
  call-interactively(find-file nil nil)
  command-execute(find-file)