linux-kernel - [PATCH 4.4 05/30] scripts: use pkg-config to locate libcrypto

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Date:   Fri,  5 Mar 2021 13:22:34 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rolf Eike Beer <eb@...ix.com>,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: [PATCH 4.4 05/30] scripts: use pkg-config to locate libcrypto

From: Rolf Eike Beer <eb@...ix.com>

commit 2cea4a7a1885bd0c765089afc14f7ff0eb77864e upstream.

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>
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 scripts/Makefile |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -11,6 +11,9 @@
 
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include
 
+CRYPTO_LIBS = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto)
+CRYPTO_CFLAGS = $(shell pkg-config --cflags libcrypto 2> /dev/null)
+
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
 hostprogs-$(CONFIG_LOGO)         += pnmtologo
 hostprogs-$(CONFIG_VT)           += conmakehash
@@ -22,8 +25,9 @@ hostprogs-$(CONFIG_SYSTEM_TRUSTED_KEYRIN
 
 HOSTCFLAGS_sortextable.o = -I$(srctree)/tools/include
 HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
-HOSTLOADLIBES_sign-file = -lcrypto
-HOSTLOADLIBES_extract-cert = -lcrypto
+HOSTLOADLIBES_sign-file = $(CRYPTO_LIBS)
+HOSTCFLAGS_extract-cert.o = $(CRYPTO_CFLAGS)
+HOSTLOADLIBES_extract-cert = $(CRYPTO_LIBS)
 
 always		:= $(hostprogs-y) $(hostprogs-m)