[OE-core] [PATCH v2] json-c: Disable icecc to avoid implicit-fallthrough warning as error

[Burton, Ross]

FWIW, this just landed in json-c master:

https://github.com/json-c/json-c/commit/07ea04e65193c3e5c902c5b79421d5fa48ff67c7

"build: add option --disable-werror to configure"

Ross

On Fri, 7 Jun 2019 at 12:20, Burton, Ross <ross.burton at intel.com> wrote:
>
> FWIW I still believe that just patching out -Werror is the correct fix
> here.  To be honest I'm really close to writing a QA check that
> -Werror and friends isn't being used at all...
>
> Filed https://github.com/json-c/json-c/issues/489 in the hope that
> upstream will handle it.
>
> Ross
>
> On Fri, 7 Jun 2019 at 02:22, Douglas Royds via Openembedded-core
> <openembedded-core at lists.openembedded.org> wrote:
> >
> > icecc preprocesses source files locally before shipping them off to be compiled
> > on remote hosts. This preprocessing removes comments, including /* fallthrough */
> > comments in switch statements that normally prevent the implicit-fallthrough
> > warning.
> >
> > Rather than turning off -Werror by patching configure.ac, it is simpler to
> > disable icecc completely for json-c. There are very few source files to compile,
> > so the compilation is quick even without icecc.
> >
> > See https://github.com/icecc/icecream/issues/419
> >
> > Signed-off-by: Douglas Royds <douglas.royds at taitradio.com>
> > ---
> >  meta/classes/icecc.bbclass | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/meta/classes/icecc.bbclass b/meta/classes/icecc.bbclass
> > index edb0e10434..c0f21bdbfd 100644
> > --- a/meta/classes/icecc.bbclass
> > +++ b/meta/classes/icecc.bbclass
> > @@ -76,6 +76,7 @@ ICECC_ENV_DEBUG ??= ""
> >  # target-sdk-provides-dummy - ${HOST_PREFIX} is empty which triggers the "NULL
> >  #                             prefix" error.
> >  ICECC_SYSTEM_PACKAGE_BL += "\
> > +    json-c \
> >      libgcc-initial \
> >      target-sdk-provides-dummy \
> >      "
> > --
> > 2.17.1
> >
> > --
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