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Date:      Wed, 29 Aug 2012 12:41:02 +0400
From:      Eir Nym <eirnym@gmail.com>
To:        Dimitry Andric <dim@freebsd.org>
Cc:        FreeBSD Mail Lists <freebsd-current@freebsd.org>
Subject:   Re: Can't build FreeBSD-head with CLANG
Message-ID:  <CAO8GK0oRynpqUL%2Bef9zjYS4%2BbYE9072yJWNJ5_tmJoho7D_rmQ@mail.gmail.com>
In-Reply-To: <503D35DA.9060704@FreeBSD.org>
References:  <CAO8GK0pQCqAJ--NkfXm%2Bc7%2Bs-_REGA3b4%2BJgao4pmE9gCo_qzA@mail.gmail.com> <503D12CB.4000208@FreeBSD.org> <CAO8GK0qHZPnpCa0zBiXYtghObAmsoe%2Bzkd0tDMQ=2VWdX_8JMg@mail.gmail.com> <503D29F4.1030804@FreeBSD.org> <CAO8GK0qpK=S1qhq3mPP6AXpgg15Wop=ghPRpD=e7MudvPBsx1w@mail.gmail.com> <503D35DA.9060704@FreeBSD.org>

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-- Eir Nym


On 29 August 2012 01:19, Dimitry Andric <dim@freebsd.org> wrote:
> On 2012-08-28 23:05, Eir Nym wrote:
> ...
>
>> This one for example:
>> cc -c -O2 -pipe -fno-strict-aliasing  -std=3Dc99  -Wall
>> -Wredundant-decls -Wnested-externs -Wstrict-prototypes
>> -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef
>> -Wno-pointer-sign -fformat-extensions  -Wmissing-include-dirs
>> -fdiagnostics-show-option  -Wno-error-tautological-compare
>> -Wno-error-empty-body  -Wno-error-parentheses-equality -nostdinc  -I.
>> -I/usr/head/src/sys -I/usr/head/src/sys/contrib/altq -D_KERNEL
>> -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
>> -fno-omit-frame-pointer -mno-aes -mno-avx -mcmodel=3Dkernel
>> -mno-red-zone -mno-mmx -mno-sse -msoft-float
>> -fno-asynchronous-unwind-tables -ffreestanding -fstack-protector
>> -Werror  /usr/head/src/sys/gnu/fs/xfs/xfs_alloc.c
>> -I/usr/head/src/sys/gnu/fs/xfs/FreeBSD
>> -I/usr/head/src/sys/gnu/fs/xfs/FreeBSD/support
>> -I/usr/head/src/sys/gnu/fs/xfs
>> /usr/head/src/sys/gnu/fs/xfs/xfs_alloc.c:1449:11: error: variable
>> 'fbno' is used uninitialized whenever 'if' condition is false
>> [-Werror,-Wsometimes-uninitialized]
>>          else if (args->minlen =3D=3D 1 && args->alignment =3D=3D 1 && !=
args->isfl
>> &&
>>
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
> Weird, how are you building the xfs module?  It has WERROR=3D in its
> Makefile, so the '-Werror' option above should not be there.  This is
> because the XFS code was imported more than 6 years ago, and is very
> unlikely to ever be fixed. :)

head SVN revision 239793,
http://eroese.org/_/_/pub/bsd/GENERIC_PF.amd64 =E2=80=94 kernel config



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