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From:   Nick Desaulniers <ndesaulniers@google.com>
Date:   Tue, 9 Jun 2020 10:28:10 -0700
Message-ID: <CAKwvOd=jjFS7XOWyYMZgLTYJtZ7uc=4dP-S4VhuyjNmT=2EcPw@mail.gmail.com>
Subject: Re: gcc-5: error: -gz is not supported in this configuration
To:     kernel test robot <lkp@intel.com>,
        Masahiro Yamada <masahiroy@kernel.org>
Cc:     kbuild-all@lists.01.org, LKML <linux-kernel@vger.kernel.org>,
        Fangrui Song <maskray@google.com>
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On Tue, Jun 9, 2020 at 6:12 AM kernel test robot <lkp@intel.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   abfbb29297c27e3f101f348dc9e467b0fe70f919
> commit: 10e68b02c861ccf2b3adb59d3f0c10dc6b5e3ace Makefile: support compressed debug info
> date:   12 days ago
> config: x86_64-randconfig-r032-20200609 (attached as .config)
> compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010
> reproduce (this is a W=1 build):
>         git checkout 10e68b02c861ccf2b3adb59d3f0c10dc6b5e3ace
>         # save the attached .config to linux build tree
>         make W=1 ARCH=x86_64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
> >> gcc-5: error: -gz is not supported in this configuration

Hmm...I wonder if the feature detection is incomplete?  I suspect it's
possible to not depend on zlib.

> make[2]: *** [scripts/Makefile.build:277: scripts/mod/empty.o] Error 1
> make[2]: Target '__build' not remade because of errors.
> make[1]: *** [Makefile:1169: prepare0] Error 2
> make[1]: Target 'prepare' not remade because of errors.
> make: *** [Makefile:185: __sub-make] Error 2
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org


-- 
Thanks,
~Nick Desaulniers