linux-kernel - Re: [PATCH v6] scripts: use pkg-config to locate libcrypto

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Date:   Thu, 28 Jan 2021 15:37:54 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Rolf Eike Beer <eb@...ix.com>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>, keyrings@...r.kernel.org,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH v6] scripts: use pkg-config to locate libcrypto

On Wed, Jan 27, 2021 at 5:06 PM Rolf Eike Beer <eb@...ix.com> wrote:
>
> From f467f251e44cd406c9556ea7d68d131f56e0d832 Mon Sep 17 00:00:00 2001
> From: Rolf Eike Beer <eb@...ix.com>
> Date: Thu, 22 Nov 2018 16:40:49 +0100
> Subject: [PATCH] scripts: use pkg-config to locate libcrypto
>
> Otherwise build fails if the headers are not in the default location. While at
> it also ask pkg-config for the libs, with fallback to the existing value.
>
> Signed-off-by: Rolf Eike Beer <eb@...ix.com>
> Cc: stable@...r.kernel.org # 5.6.x
> ---
>  scripts/Makefile | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> Changes in v6:
>  - hardcode pkg-config
>
> diff --git a/scripts/Makefile b/scripts/Makefile
> index b5418ec587fb..9de3c03b94aa 100644
> --- a/scripts/Makefile
> +++ b/scripts/Makefile
> @@ -3,6 +3,9 @@
>  # scripts contains sources for various helper programs used throughout
>  # the kernel for the build process.
>
> +CRYPTO_LIBS = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto)
> +CRYPTO_CFLAGS = $(shell pkg-config --cflags libcrypto 2> /dev/null)
> +
>  hostprogs-always-$(CONFIG_BUILD_BIN2C)                 += bin2c
>  hostprogs-always-$(CONFIG_KALLSYMS)                    += kallsyms
>  hostprogs-always-$(BUILD_C_RECORDMCOUNT)               += recordmcount
> @@ -14,8 +17,9 @@ hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE)   += insert-sys-cert
>
>  HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include
>  HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
> -HOSTLDLIBS_sign-file = -lcrypto
> -HOSTLDLIBS_extract-cert = -lcrypto
> +HOSTLDLIBS_sign-file = $(CRYPTO_LIBS)
> +HOSTCFLAGS_extract-cert.o = $(CRYPTO_CFLAGS)
> +HOSTLDLIBS_extract-cert = $(CRYPTO_LIBS)
>
>  ifdef CONFIG_UNWINDER_ORC
>  ifeq ($(ARCH),x86_64)
> --
> 2.30.0
>
> --
> Rolf Eike Beer, emlix GmbH, http://www.emlix.com
> Fon +49 551 30664-0, Fax +49 551 30664-11
> Gothaer Platz 3, 37083 Göttingen, Germany
> Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
> Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055
>
> emlix - smart embedded open source
>
>
>

Applied to linux-kbuild. Thanks.

-- 
Best Regards
Masahiro Yamada