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Message-ID: <CANO7a6zKj_=jj_SzHyDVJedPrbSb3YdZyVAbmOu+ze3+KNMm3Q@mail.gmail.com>
Date: Sun, 20 Jan 2013 15:26:44 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: new clang 3.2 warnings
On Sun, Jan 20, 2013 at 3:08 PM, Frank Dittrich
<frank_dittrich@...mail.com> wrote:
> On 01/20/2013 04:35 AM, Dhiru Kholia wrote:
>> I am getting tons of warnings which look like "clang: warning:
>> argument '-faddress-sanitizer' is deprecated, use '-fsanitize=address'
>> instead" when using clang 3.2.
>>
>> These warnings are harmless (but ugly) and are emitted only during
>> *-clang-debug target builds.
>>
>> Is adding something like "HAVE_CLANG_3_2" to Makefile the only
>> solution to fix this problem?
>
> I am getting warnings
>
> clang: warning: argument unused during compilation: '-faddress-sanitizer'
>
> when building with
>
> $ clang --version
> clang version 2.9 (tags/RELEASE_29/final)
> Target: i386-redhat-linux-gnu
> Thread model: posix
>
> I just assumed that my clang version was too old to know this switch.
> Since only the -clang-debug target was affected, I didn't care.
>
> I would prefer -clang-debug just using the option name that is required
> for the newest clang version(s), instead of having to adjust one more
> config variable.
> But when I change the option name in Makefile, I get
> clang: warning: argument unused during compilation: '-fsanitize=address'
> instead, for 2.9 and for 3.1.
>
> This is bad. May be HAVE_CLANG_3_2 is a good enough solution right now?
> How widespread is clang 3.2? Fedora 18 still uses 3.1.
I don't think clang 3.2 is very widespread. I have it since I run Arch
Linux which is a rolling release distribution.
So, we have *two* problems with clang-debug targets, clang being too
old or clang being too new.
--
Dhiru
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