[ovs-dev] autoconf test OVS_ENABLE_OPTION fails to detect options unsupported by clang

Ben Pfaff blp at nicira.com
Mon Jun 24 19:27:11 UTC 2013


On Fri, Jun 21, 2013 at 01:12:24PM -0400, Ed Maste wrote:
> On 21 June 2013 12:05, Ben Pfaff <blp at nicira.com> wrote:
> > By default, clang warns about but does not fail on unknown -W options.
> > This made configure add the option to WARNING_FLAGS, which caused the
> > warning about not-understood warnings to be emitted for every file
> > compiled.
> >
> > In combination with -Werror, clang does fail on unknown -W options.  This
> > commit adds -Werror during configure's warning tests, which should cause
> > the not-understood warnings to be detected that way.
> >
> > Reported-by: Ed Maste <emaste at freebsd.org>
> > Signed-off-by: Ben Pfaff <blp at nicira.com>
> 
> Thanks Ben, looks good and it works for me.

Applied to master, thanks.  Let me know if you want this backported to
older branches.



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