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From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	Valdis Kletnieks <valdis.kletnieks@vt.edu>,
	LKML <linux-kernel@vger.kernel.org>, bpf <bpf@vger.kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Andrii Nakryiko <andriin@fb.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@chromium.org>, Martin KaFai Lau <kafai@fb.com>,
	Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
	Network Development <netdev@vger.kernel.org>
Subject: Re: [PATCH] bpfilter: check if $(CC) can static link in Kconfig
Date: Sat, 9 May 2020 18:04:32 -0700	[thread overview]
Message-ID: <CAADnVQJvJWwziwDj0ZgPc02iHNNk8EJetDqNZ6SoWq045C-gXQ@mail.gmail.com> (raw)
In-Reply-To: <20200509073915.860588-1-masahiroy@kernel.org>

On Sat, May 9, 2020 at 12:40 AM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
> On Fedora, linking static libraries requires the glibc-static RPM
> package, which is not part of the glibc-devel package.
>
> CONFIG_CC_CAN_LINK does not check the capability of static linking,
> so you can enable CONFIG_BPFILTER_UMH, then fail to build.
>
>   HOSTLD  net/bpfilter/bpfilter_umh
> /usr/bin/ld: cannot find -lc
> collect2: error: ld returned 1 exit status
>
> Add CONFIG_CC_CAN_LINK_STATIC, and make CONFIG_BPFILTER_UMH depend
> on it.
>
> Reported-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Thanks!
Acked-by: Alexei Starovoitov <ast@kernel.org>

  reply	other threads:[~2020-05-10  1:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-09  7:39 [PATCH] bpfilter: check if $(CC) can static link in Kconfig Masahiro Yamada
2020-05-10  1:04 ` Alexei Starovoitov [this message]
2020-05-12  4:32   ` Masahiro Yamada

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