Date: Tue, 28 Aug 2012 23:19:22 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Eir Nym <eirnym@gmail.com> Cc: FreeBSD Mail Lists <freebsd-current@freebsd.org> Subject: Re: Can't build FreeBSD-head with CLANG Message-ID: <503D35DA.9060704@FreeBSD.org> In-Reply-To: <CAO8GK0qpK=S1qhq3mPP6AXpgg15Wop=ghPRpD=e7MudvPBsx1w@mail.gmail.com> 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>
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On 2012-08-28 23:05, Eir Nym wrote: ... > This one for example: > cc -c -O2 -pipe -fno-strict-aliasing -std=c99 -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=kernel > -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 == 1 && args->alignment == 1 && !args->isfl && > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Weird, how are you building the xfs module? It has WERROR= 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. :)
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