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From: Po-Hsu Lin <po-hsu.lin@canonical.com>
To: Eric Biggers <ebiggers@kernel.org>
Cc: linux-fscrypt@vger.kernel.org
Subject: Re: [PATCH] Makefile: improve the cc-option compatibility
Date: Mon, 3 Aug 2020 11:09:54 +0800
Message-ID: <CAMy_GT-3j6S-DpOmbrckpE0dFi_Ja3Wz+kZFZLPdEfs_WRv__w@mail.gmail.com> (raw)
In-Reply-To: <20200801181200.GB14666@sol.localdomain>

OK no problem,
I will send another one to add this subject format suggestion to the
Contributing section in README.md.

Thank you.
PHLin

On Sun, Aug 2, 2020 at 2:12 AM Eric Biggers <ebiggers@kernel.org> wrote:
>
> On Thu, Jul 30, 2020 at 09:21:38PM +0800, Po-Hsu Lin wrote:
> > BTW this is for fsverity-utils.
> >
> > I should put a [fsverity-utils] in the title, sorry about this.
> > I can resubmit one if you need.
> >
> > Thank you
> > PHLin
> >
> > On Thu, Jul 30, 2020 at 5:35 PM Po-Hsu Lin <po-hsu.lin@canonical.com> wrote:
> > >
> > > The build on Ubuntu Xenial with GCC 5.4.0 will fail with:
> > >     cc: error: unrecognized command line option ‘-Wimplicit-fallthrough’
> > >
> > > This unsupported flag is not skipped as expected.
> > >
> > > It is because of the /bin/sh shell on Ubuntu, DASH, which does not
> > > support this &> redirection. Use 2>&1 to solve this problem.
> > >
> > > Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
> > > ---
> > >  Makefile | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/Makefile b/Makefile
> > > index 7d7247c..a4ce55a 100644
> > > --- a/Makefile
> > > +++ b/Makefile
> > > @@ -27,7 +27,7 @@
> > >  #
> > >  ##############################################################################
> > >
> > > -cc-option = $(shell if $(CC) $(1) -c -x c /dev/null -o /dev/null &>/dev/null; \
> > > +cc-option = $(shell if $(CC) $(1) -c -x c /dev/null -o /dev/null > /dev/null 2>&1; \
> > >               then echo $(1); fi)
> > >
> > >  CFLAGS ?= -O2 -Wall -Wundef                                    \
> > > --
>
> Looks good, thanks!  I'll also want to add a test for building with dash to
> scripts/run-tests.sh, but I can do that.
>
> Note that we've just changed the license of fsverity-utils to the MIT license.
> Can you rebase onto the latest master branch (commit ab794fd56511) and resend to
> indicate that you agree?  And yes, I suggest "[fsverity-utils PATCH]", as this
> mailing list is mostly used for kernel patches.  Thanks!
>
> - Eric

      reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-30  9:35 Po-Hsu Lin
2020-07-30 13:21 ` Po-Hsu Lin
2020-08-01 18:12   ` Eric Biggers
2020-08-03  3:09     ` Po-Hsu Lin [this message]

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