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From: Warner Losh <imp@bsdimp.com>
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To: Alexander Best <arundel@FreeBSD.ORG>
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Cc: freebsd-hackers@FreeBSD.ORG, freebsd-toolchain@FreeBSD.ORG
Subject: Re: [rfc] a few kern.mk and bsd.sys.mk related changes
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These look generally good.  Just one thing I had a question on:

 #
+# Enable FreeBSD kernel-specific printf format specifiers. Also =
instruct gcc to
+# enable some diagnostics, which make it easier to pinpoint tinderbox =
failures.
+CFLAGS+=3D	-fformat-extensions -fdiagnostics-show-option
+

Does this put sand in the gears of clang support?

Warner


On May 27, 2011, at 5:51 AM, Alexander Best wrote:

> hi there,
>=20
> i would like to hear people's opinion regarding the following patch. =
it
> features the following semantic changes:
>=20
> 1) -W is now called -Wextra
> 2) move -fformat-extensions and -fdiagnostics-show-option out of =
CWARNFLAGS,
>   since they aren't really warnings. this will now let anybody use =
custom
>   CWARNFLAGS without having to remember to add -fformat-extensions in =
order
>   not to break buildworld.
> 3) rearrange "\" characters, as to avoid double spaces
> 4) when building kernel modules, -fstack-protector was added to CFLAGS =
twice.
>   this should now be solved.
>=20
> cheers.
> alex
>=20
> --=20
> a13x
> =
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