On Sat, 18 Jun 2011, Ben Laurie wrote:
Author: benl
Date: Sat Jun 18 13:56:33 2011
New Revision: 223262
URL: http://svn.freebsd.org/changeset/base/223262
Log:
Fix clang warnings.
Approved by: philip (mentor)
Most of these seem to be bugs in clang, so source code can only be broken
by avoiding the warnings there. In particular:
- casting to void is a large style bug in gnu code. Warnings in vendor
code shouldn't be fixed anyway.
- it is an old gcc bug to warn about use of the extremely unsurprising
precedence of AND operators over OR operators. This bug is not much
of a problem since it is controlled by -Wparentheses. -Wparentheses
is impiled by -Wall, which is enables at WARNS >= 2. But it is a new
clang bug to make this warning unconditional (it can be turned off or
configured off, but this is not supported in FreeBSD or documented in
clang.1). So it is now fatal at WARNS >=1, since WARNS >=1 turns
warnings into errors.
Bruce
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