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Re: [PATCH 1/8] Add --with-system-zlib in bfd
- From: Pedro Alves <palves at redhat dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>, Binutils <binutils at sourceware dot org>, GDB <gdb-patches at sourceware dot org>
- Date: Tue, 31 Mar 2015 11:37:08 +0100
- Subject: Re: [PATCH 1/8] Add --with-system-zlib in bfd
- Authentication-results: sourceware.org; auth=none
- References: <20150326155711 dot GA10088 at gmail dot com> <20150331061337 dot GA30996 at vapier> <CAMe9rOpRauO-5fxuV5bZkUC0tMbbi0tCTCmGQ0GEe1NXEa1dYw at mail dot gmail dot com>
On 03/31/2015 11:10 AM, H.J. Lu wrote:
> On Mon, Mar 30, 2015 at 11:13 PM, Mike Frysinger <vapier@gentoo.org> wrote:
>> On 26 Mar 2015 08:57, H.J. Lu wrote:
>>> --- a/bfd/configure.ac
>>> +++ b/bfd/configure.ac
>>>
>>> -# Link in zlib if we can. This allows us to read compressed debug sections.
>>> -# This is used only by compress.c.
>>> -AM_ZLIB
>>> +# Use the system's zlib library.
>>> +zlibdir=-L../zlib
>>> +zlibinc="-I\$(srcdir)/../zlib"
>>> +AC_ARG_WITH(system-zlib,
>>> +[AS_HELP_STRING([--with-system-zlib], [use installed libz])],
>>> +zlibdir=
>>> +zlibinc=
>>> +)
>>
>> this is wrong. the 3rd arg is whether the option was specified, not that the
>> option was disabled. you need to check $withval is equal to "no" (or not equal
>> to "yes").
>> -mike
>
> That is what gcc/configure.ac has and it works for me.
>
>
Why are we patching every tool's configury instead of tweaking
config/zlib.m4 (where AM_ZLIB is from)? We go from a single
place to edit, to the same configure bits spread around the
tree. Seems like a step backwards.
--
Pedro Alves