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Re: ping #3: [RFA] Add --with-libz-prefix option in config/zlib.m4
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Joel Brobecker <brobecker at adacore dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Binutils <binutils at sourceware dot org>, GDB <gdb-patches at sourceware dot org>
- Date: Wed, 18 Feb 2015 08:58:16 -0800
- Subject: Re: ping #3: [RFA] Add --with-libz-prefix option in config/zlib.m4
- Authentication-results: sourceware.org; auth=none
- References: <20150107144548 dot GX5432 at adacore dot com> <20150218120841 dot GD23529 at adacore dot com> <CAMe9rOp9YQrhwwrmqRa+a-04BNvd+p9_MVgxkiVhgt+6TkDb7g at mail dot gmail dot com> <20150218165457 dot GU544 at vapier>
On Wed, Feb 18, 2015 at 8:54 AM, Mike Frysinger <email@example.com> wrote:
> On 18 Feb 2015 04:56, H.J. Lu wrote:
>> On Wed, Feb 18, 2015 at 4:08 AM, Joel Brobecker <firstname.lastname@example.org> 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 ?
Author: H.J. Lu <email@example.com>
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.