From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26083 invoked by alias); 18 Feb 2015 19:52:04 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 26048 invoked by uid 89); 18 Feb 2015 19:52:04 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=2.7 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,KAM_FROM_URIBL_PCCC,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=no version=3.3.2 X-Spam-User: qpsmtpd, 2 recipients X-HELO: mail-ob0-f170.google.com Received: from mail-ob0-f170.google.com (HELO mail-ob0-f170.google.com) (209.85.214.170) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Wed, 18 Feb 2015 19:52:03 +0000 Received: by mail-ob0-f170.google.com with SMTP id va2so6368157obc.1; Wed, 18 Feb 2015 11:52:01 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.182.158.195 with SMTP id ww3mr695253obb.22.1424289121346; Wed, 18 Feb 2015 11:52:01 -0800 (PST) Received: by 10.76.134.102 with HTTP; Wed, 18 Feb 2015 11:52:00 -0800 (PST) In-Reply-To: <20150218194443.GW544@vapier> References: <20150107144548.GX5432@adacore.com> <20150218120841.GD23529@adacore.com> <20150218165457.GU544@vapier> <20150218194443.GW544@vapier> Date: Wed, 18 Feb 2015 19:52:00 -0000 Message-ID: Subject: Re: ping #3: [RFA] Add --with-libz-prefix option in config/zlib.m4 From: "H.J. Lu" To: Joel Brobecker , GCC Patches , Binutils , GDB Content-Type: text/plain; charset=UTF-8 X-IsSubscribed: yes X-SW-Source: 2015-02/txt/msg00494.txt.bz2 On Wed, Feb 18, 2015 at 11:44 AM, Mike Frysinger wrote: > On 18 Feb 2015 08:58, H.J. Lu wrote: >> On Wed, Feb 18, 2015 at 8:54 AM, Mike Frysinger wrote: >> > On 18 Feb 2015 04:56, H.J. Lu wrote: >> >> On Wed, Feb 18, 2015 at 4:08 AM, Joel Brobecker wrote: >> >> > On Wed, Jan 07, 2015 at 06:45:48PM +0400, Joel Brobecker wrote: >> >> >> This patch enhances config/zlib.m4 to introduce an extra option >> >> >> --with-libz-prefix which allows us to provide the location of >> >> >> the zlib library we want to use during the build. >> >> >> >> >> >> config/ChangeLog: >> >> >> >> >> >> * zlib.m4 (AM_ZLIB): Add --with-libz-prefix option support. >> >> >> >> >> >> I didn't see any file in the GCC project that uses this macro, >> >> >> so for the GCC repository, the change to zlib.m4 is it. But >> >> >> I am also attaching to this email a copy of the patch that >> >> >> will be applied to the binutils-gdb.git repository, with all >> >> >> configury using this macro being re-generated - mostly for info, >> >> >> also as a heads-up to both binutils and GDB. >> >> >> >> >> >> This was tested by regenerating all autoconf/automake files in >> >> >> the binutils-gdb project, and rebuilding GDB, using the following >> >> >> combinations: >> >> >> >> >> >> --with-zlib (system zlib used) >> >> >> --with-libz-prefix=/zlib/prefix (specific zlib linked in) >> >> >> --with-zlib --with-libz-prefix=/zlib/prefix (specific zlib linked in) >> >> >> >> >> >> --without-zlib (zlib support turned off) >> >> >> --without-zlib --with-zlib-prefix (zlib support turned off) >> >> >> >> >> >> --with-zlib (no system zlib available, configure fails with expected error) >> >> >> --with-zlib --with-libz-prefix=/invalid/zlib/prefix >> >> >> (no system zlib, configure fails with same error) >> >> >> >> >> >> OK to commit? >> >> >> >> Why do you want to turn off zlib? On Linux/x86, zlib is required >> >> for assembler. At least, you should issue an error when --without-libz >> >> is used in binutils for Linux/x86 target. >> > >> > err, when did that happen ? why would zlib be possibly required for an >> > assembler ? >> >> commit 89e7505fcde4bd83948f559f429a0e1eb4262f05 >> Author: H.J. Lu >> Date: Sun Dec 14 06:41:03 2014 -0800 >> >> Compress debug sections for Linux/x86 by default >> >> * config/tc-i386.c (flag_compress_debug): Default to compress >> debug sections for Linux. > > i don't see how that justifies making it a hard requirement > -mike Can you elaborate? -- H.J.