From patchwork Tue Apr 24 17:58:29 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Jackson X-Patchwork-Id: 10360717 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F331260225 for ; Tue, 24 Apr 2018 18:15:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E3E8328710 for ; Tue, 24 Apr 2018 18:15:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D7DDB28AC8; Tue, 24 Apr 2018 18:15:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D687328710 for ; Tue, 24 Apr 2018 18:15:29 +0000 (UTC) Received: from localhost ([::1]:60165 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fB2TR-0003fe-4R for patchwork-qemu-devel@patchwork.kernel.org; Tue, 24 Apr 2018 14:15:29 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36656) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fB2DO-0007NT-97 for qemu-devel@nongnu.org; Tue, 24 Apr 2018 13:58:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fB2DN-00075s-CT for qemu-devel@nongnu.org; Tue, 24 Apr 2018 13:58:54 -0400 Received: from smtp03.citrix.com ([162.221.156.55]:9785) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fB2DN-00071c-2s for qemu-devel@nongnu.org; Tue, 24 Apr 2018 13:58:53 -0400 X-IronPort-AV: E=Sophos;i="5.49,324,1520899200"; d="scan'208";a="52610269" From: Ian Jackson To: Date: Tue, 24 Apr 2018 18:58:29 +0100 Message-ID: <1524592709-6553-17-git-send-email-ian.jackson@eu.citrix.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1524592709-6553-1-git-send-email-ian.jackson@eu.citrix.com> References: <1524592709-6553-1-git-send-email-ian.jackson@eu.citrix.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 162.221.156.55 Subject: [Qemu-devel] [PATCH 16/16] configure: do_compiler: Dump some extra info under bash X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Janosch Frank , Thomas Huth , Stefano Stabellini , Peter Maydell , "Kent R. Spillner" , Ian Jackson , Ross Lagerwall , Paolo Bonzini , Anthony PERARD , xen-devel@lists.xenproject.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This makes it much easier to find a particular thing in config.log. We have to use the ${BASH_LINENO[*]} syntax which is a syntax error in other shells, so test what shell we are running and use eval. The extra output is only printed if configure is run with bash. On systems where /bin/sh is not bash, it is necessary to say bash ./configure to get the extra debug info in the log. Suggested-by: Eric Blake Signed-off-by: Ian Jackson CC: Kent R. Spillner CC: Janosch Frank CC: Thomas Huth CC: Peter Maydell CC: Paolo Bonzini Tested-by: Thomas Huth --- v8: Fix so that it actually works as intended with bash. v6: Fix commit message wording. v4: No longer tag this patch RFC. --- configure | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/configure b/configure index aa35aef..f9ba9ea 100755 --- a/configure +++ b/configure @@ -60,6 +60,11 @@ do_compiler() { # is compiler binary to execute. local compiler="$1" shift + if test -n "$BASH_VERSION"; then eval ' + echo >>config.log " +funcs: ${FUNCNAME[*]} +lines: ${BASH_LINENO[*]}" + '; fi echo $compiler "$@" >> config.log $compiler "$@" >> config.log 2>&1 || return $? # Test passed. If this is an --enable-werror build, rerun