From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Aidan Kehoe Newsgroups: gmane.emacs.bugs Subject: bug#7127: 23.2; M-x help throws an error Date: Wed, 29 Sep 2010 08:17:22 +0100 Message-ID: <19618.59394.954066.964412@parhasard.net> References: <19618.29737.497771.713881@parhasard.net> <4i7hi5a1po.fsf@fencepost.gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1285746212 6983 80.91.229.12 (29 Sep 2010 07:43:32 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 29 Sep 2010 07:43:32 +0000 (UTC) Cc: 7127@debbugs.gnu.org To: Glenn Morris Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 29 09:43:31 2010 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1P0rIi-00084p-Gj for geb-bug-gnu-emacs@m.gmane.org; Wed, 29 Sep 2010 09:43:30 +0200 Original-Received: from localhost ([127.0.0.1]:37269 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1P0rIX-00059d-AM for geb-bug-gnu-emacs@m.gmane.org; Wed, 29 Sep 2010 03:41:53 -0400 Original-Received: from [140.186.70.92] (port=49886 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1P0rIH-00058w-Nk for bug-gnu-emacs@gnu.org; Wed, 29 Sep 2010 03:41:48 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1P0rI2-0001il-71 for bug-gnu-emacs@gnu.org; Wed, 29 Sep 2010 03:41:27 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39843) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1P0rI2-0001if-4I for bug-gnu-emacs@gnu.org; Wed, 29 Sep 2010 03:41:22 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1P0qsZ-0001Rp-1d; Wed, 29 Sep 2010 03:15:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Aidan Kehoe Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 29 Sep 2010 07:15:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 7127 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo unreproducible Original-Received: via spool by 7127-submit@debbugs.gnu.org id=B7127.12857444735541 (code B ref 7127); Wed, 29 Sep 2010 07:15:03 +0000 Original-Received: (at 7127) by debbugs.gnu.org; 29 Sep 2010 07:14:33 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1P0qs4-0001RK-C4 for submit@debbugs.gnu.org; Wed, 29 Sep 2010 03:14:32 -0400 Original-Received: from daedalus.ipv4.asclepian.ie ([213.133.100.226] helo=daedalus.asclepian.ie) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1P0qs2-0001RF-Cd for 7127@debbugs.gnu.org; Wed, 29 Sep 2010 03:14:31 -0400 Original-Received: by daedalus.asclepian.ie (Postfix, from userid 1002) id 142FCB816; Wed, 29 Sep 2010 08:17:23 +0100 (IST) In-Reply-To: <4i7hi5a1po.fsf@fencepost.gnu.org> X-Mailer: VM 8.0.12 under 21.5 (beta29) "garbanzo" d0bc331e433f+ XEmacs Lucid (x86_64-unknown-freebsd7.2) X-Echelon-distraction: AFSPC enigma HAHO Cocaine MP5k walburn X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Wed, 29 Sep 2010 03:15:03 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:40534 Archived-At: Ar an t-ocht=C3=BA l=C3=A1 is fiche de m=C3=AD M=C3=A9an F=C3=B3mhair, s= cr=C3=ADobh Glenn Morris:=20 > Aidan Kehoe wrote: >=20 > > 1) emacs -Q > > 2) M-x help RET > > 3) Observe error giving following backtrace:=20 > > > > Debugger entered--Lisp error: (wrong-type-argument stringp nil) >=20 > I cannot reproduce this. >=20 > > The issue seems to be make-help-screen in help-macro.el, which assum= es > > that (documentation FNAME) gives non-nil, something not true for > > #'help. >=20 > (documentation #'help) >=20 > returns "Help command." for me in Emacs 23.2. Good for you. (symbol-function 'help-for-help-internal) (h-f-h-i being wh= at help eventually resolves to) gives me a compiled function with a nil documentation slot; help.elc has (defalias 'help-for-help-internal ...) w= ith a compiled function and what seems to be the correct lazy doc reference. = The DOC file seems correct, with an entry =1FFhelp-for-help-internal Help command.=1F But (documentation #'custom-declare-variable-early) and (documentation #'when) both give nil for me, and the same seems to be true for all the dumped compiled functions with docstrings. I don=E2=80=99t know why that = is, and I don=E2=80=99t especially care to debug it right now, but this binary is w= hat Cygwin installed, I=E2=80=99m certain I=E2=80=99m not the only one affected. > > In GNU Emacs 23.2.1 (i686-pc-cygwin, GTK+ Version 2.18.6) > > of 2010-05-08 on laptop --=20 =E2=80=9CApart from the nine-banded armadillo, man is the only natural ho= st of Mycobacterium leprae, although it can be grown in the footpads of mice.=E2= =80=9D -- Kumar & Clark, Clinical Medicine, summarising improbable leprosy res= earch