Date: Fri, 30 Dec 2011 13:28:51 +0000 From: David Chisnall <theraven@theravensnest.org> To: Dimitry Andric <dim@freebsd.org> Cc: Alexander Best <arundel@freebsd.org>, freebsd-toolchain@freebsd.org, current@freebsd.org, freebsd-arch@freebsd.org Subject: Re: [rfc] removing/conditionalising WERROR= in Makefiles Message-ID: <DE9D56F1-6D30-42E1-AA07-535BFAB2509D@theravensnest.org> In-Reply-To: <4EFDB76C.1030901@FreeBSD.org> References: <20111226101040.GA6361@freebsd.org> <4EFDB76C.1030901@FreeBSD.org>
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On 30 Dec 2011, at 13:06, Dimitry Andric wrote: > sys/gnu/fs/xfs/xfs_dir2_block.c:1149:17: warning: array index of '1' = indexes past the end of an array (that contains 1 element) = [-Warray-bounds] I recall some discussion of this warning on the clang list a few months = ago, and I believe that it should now only appear if you are compiling = in a C99 or C11 dialect mode (the rationale is that any variable-length = structures in C99 should be using a zero-sized array as the final = element, while C89 lacked any ability to do this). =20 I suspect a lot of similar warnings are caused by the difference in = default dialects between clang and gcc. Adding an explicit -std=3Dc89 = to the cflags any modules that are using an archaic dialect of C may = silence a lot of these... David=
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