From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4828 invoked by alias); 25 Aug 2015 13:40:02 -0000 Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org Received: (qmail 4727 invoked by uid 89); 25 Aug 2015 13:40:01 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.0 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,RP_MATCHES_RCVD,SPF_HELO_PASS autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Tue, 25 Aug 2015 13:40:00 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 183638E4E4; Tue, 25 Aug 2015 13:39:59 +0000 (UTC) Received: from [127.0.0.1] (ovpn01.gateway.prod.ext.ams2.redhat.com [10.39.146.11]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t7PDdvi1004031; Tue, 25 Aug 2015 09:39:58 -0400 Message-ID: <55DC702C.7030704@redhat.com> Date: Tue, 25 Aug 2015 13:40:00 -0000 From: Pedro Alves User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Paul_Koning@dell.com CC: gdb@sourceware.org, bug-gnulib Subject: Re: Cross-build issues in gdb/gnulib References: <55DC3BC4.1000707@redhat.com> <1CC14532-8BF3-4C4A-9773-D61B13393DB9@dell.com> In-Reply-To: <1CC14532-8BF3-4C4A-9773-D61B13393DB9@dell.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SW-Source: 2015-08/txt/msg00044.txt.bz2 Adding gnulib@ Original thread here: https://sourceware.org/ml/gdb/2015-08/msg00037.html Thanks, Pedro Alves On 08/25/2015 02:12 PM, Paul_Koning@dell.com wrote: > >> On Aug 25, 2015, at 5:56 AM, Pedro Alves wrote: >> >> On 08/24/2015 10:20 PM, Paul_Koning@Dell.com wrote: >>> I'm running into strange problems cross-building with V7.7.1; it looks like the same configure machinery is present in later versions as well. >>> >>> The problem is that the configure script in gdb/gnulib tries to run a number of tests, by building and then executing "conftest". It does so unconditionally, there are no checks for whether this is a cross-build, specifically build = x86_64-linux, host = target = netbsd. >> >> I have no idea why configure is trying to run the test in your case, but I just yesterday >> updated master's gnulib copy to current upstream gnulib master. Previously we had >> a 2012 copy. I don't see any AC_TRY_RUN in current master, for instance, >> though I didn't check older versions. In any case, try seeing if current master makes >> a difference. > > I tracked down the spot in the configure sources where the problem originates. There is no AC_TRY_RUN involved. Instead, the issue is this bit of code in gnulib/import/m4/locale-ja.m4: > > # Test for the AIX locale name. > if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then > gt_cv_locale_ja=ja_JP > > The comment refers to AIX, but it is in fact executed in the "*" case of a case statement, i.e., for everything other than Windows. The same code pattern also appears in the two other locale-*.m4 files. > > So it looks like that code needs some sort of guard checking for cross-build, and some sort of default action if so. I'm not particularly fluent in configure unfortunately. > > A quick look at the latest master shows that these files are unchanged by yesterday's update (other than copyright year). > > paul >