linux-kernel - [PATCH 19/19] kbuild: rpm-pkg: skip build dependency check on non-rpm systems

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Message-Id: <20230722044806.3867434-19-masahiroy@kernel.org>
Date:   Sat, 22 Jul 2023 13:48:06 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>
Subject: [PATCH 19/19] kbuild: rpm-pkg: skip build dependency check on non-rpm systems

Commit 8818039f959b ("kbuild: add ability to make source rpm buildable
using koji") added the BuildRequires: field.

Checking the build dependency is fine, but one annoyance is that
'make (bin)rpm-pkg' fails on non-rpm systems [1]. For example, Debian
provides rpmbuild via 'apt install rpm', but of course cannot meet the
requirement listed in the BuildRequires: field.

It is possible to pass RPMOPTS=--nodeps to work around it, but it is
reasonable to do it automatically.

If 'rpm -q rpm' fails, it is not an RPM-managed system. (The command
'rpm' is not installed at all, or was installed by other means.)

In that case, pass --nodeps to skip the build dependency check.

[1]: https://lore.kernel.org/linux-kbuild/Y6mkdYQYmjUz7bqV@li-4a3a4a4c-28e5-11b2-a85c-a8d192c6f089.ibm.com/

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 scripts/Makefile.package | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 0ace3973a0d1..85beab0363d7 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -92,7 +92,8 @@ rpm-pkg srcrpm-pkg binrpm-pkg: kernel.spec
 	+$(strip rpmbuild -b$(build-type) kernel.spec \
 	--define='_topdir $(abspath rpmbuild)' \
 	$(if $(filter a b, $(build-type)), \
-		--target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}') \
+		--target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}' \
+		$$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps)) \
 	$(if $(filter b, $(build-type)), \
 		--without devel) \
 	$(RPMOPTS))
-- 
2.39.2