[Libguestfs] [PATCH] Disable -Wunsafe-loop-optimizations

Jim Meyering jim at meyering.net
Thu Sep 17 14:29:28 UTC 2009


Richard W.M. Jones wrote:
> Subject: [PATCH 1/5] Disable -Wunsafe-loop-optimizations
>
> This warning indicates that GCC could not do a particular sort
> of loop optimization.  It pops up randomly in certain forms of
> looping code, and seems safe to ignore.
> ---
>  configure.ac |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/configure.ac b/configure.ac
> index b28f316..95ab51e 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -84,6 +84,8 @@ if test "$gl_gcc_warnings" = yes; then
>    nw="$nw -Winline"                 # daemon.h's asprintf_nowarn
>    nw="$nw -Wshadow"                 # numerous, plus we're not unanimous
>    # ?? -Wstrict-overflow
> +  nw="$nw -Wunsafe-loop-optimizations" # just a warning that an optimization
> +                                    # was not possible, safe to ignore

ACK.
Unfortunate that they chose such a misleading name.
I agree it is safe to disable it.




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