From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludo@gnu.org (Ludovic =?iso-8859-1?Q?Court=E8s?=) Newsgroups: gmane.lisp.guile.devel Subject: Failures of =?iso-8859-1?q?=60AC=A0CHECK=5FSIZEOF=27?= Date: Wed, 19 Mar 2008 09:24:00 +0100 Message-ID: <877ifz2kbj.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1205915075 13317 80.91.229.12 (19 Mar 2008 08:24:35 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 19 Mar 2008 08:24:35 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Wed Mar 19 09:25:04 2008 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Jbtbb-0004d6-VO for guile-devel@m.gmane.org; Wed, 19 Mar 2008 09:25:04 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Jbtb1-0005VY-QP for guile-devel@m.gmane.org; Wed, 19 Mar 2008 04:24:27 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Jbtat-0005UV-VI for guile-devel@gnu.org; Wed, 19 Mar 2008 04:24:20 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Jbtan-0005RN-VV for guile-devel@gnu.org; Wed, 19 Mar 2008 04:24:18 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Jbtan-0005RE-S8 for guile-devel@gnu.org; Wed, 19 Mar 2008 04:24:13 -0400 Original-Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Jbtan-0003aB-PX for guile-devel@gnu.org; Wed, 19 Mar 2008 04:24:14 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Jbtah-0000d7-0e for guile-devel@gnu.org; Wed, 19 Mar 2008 08:24:07 +0000 Original-Received: from 193.50.110.109 ([193.50.110.109]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 19 Mar 2008 08:24:07 +0000 Original-Received: from ludo by 193.50.110.109 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 19 Mar 2008 08:24:07 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 22 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 193.50.110.109 X-Revolutionary-Date: 30 =?iso-8859-1?Q?Vent=F4se?= an 216 de la =?iso-8859-1?Q?R=E9volution?= X-PGP-Key-ID: 0xEB1F5364 X-PGP-Key: http://www.laas.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 821D 815D 902A 7EAB 5CEE D120 7FBA 3D4F EB1F 5364 X-OS: i686-pc-linux-gnu User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux) Cancel-Lock: sha1:QMPci0VDA5ERT6hU2R3N3aY/KIg= X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:7084 Archived-At: Hi, We've seen failures of the type "cannot compute sizeof (char)", resulting from the fact that the executable produced by `AC_CHECK_SIZEOF' cannot be run because it's linked against a library that's not in the dynamic linker's search path (`LD_LIBRARY_PATH' or similar). For the record, I discussed it with the Autoconf people: http://thread.gmane.org/gmane.comp.sysutils.autoconf.general/10250 The solution suggested by Ralf Wildenhues involves using M4 macros as found in Gnulib to make sure that executables (including those produced by `configure') get the right `RPATH' so that they can actually be run. A simpler solution would be to move all `AC_CHECK_SIZEOF' tests earlier than any `AC_CHECK_LIB' call in `configure.in'. Unfortunately, we have a number of `AC_TRY_RUN' tests that would fail later on anyway. Thanks, Ludovic.