[PATCH 03/19] kbuild: rpm-pkg: do not hard-code $MAKE in spec file

From: Masahiro Yamada
Date: Sat Jul 22 2023 - 00:48:32 EST


Currently, $MAKE will expand to the GNU Make program that created the
source RPM. This is problematic if you carry it to a different build
host to run 'rpmbuild' there.

Consider this command:

$ /path/to/my/custom/make srcrpm-pkg

The spec file in the SRPM will record '/path/to/my/custom/make', which
exists only on that build environment.

To create a portable SRPM, the spec file should avoid hard-coding $MAKE.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---

scripts/Makefile.package | 5 +++--
scripts/package/mkspec | 12 +++++++-----
2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 92dbc889bd7c..e9217e997c68 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -72,7 +72,7 @@ PHONY += rpm-pkg
rpm-pkg: srpm = $(shell rpmspec --srpm --query --queryformat='%{name}-%{VERSION}-%{RELEASE}.src.rpm' kernel.spec)
rpm-pkg: srcrpm-pkg
+rpmbuild $(RPMOPTS) --target $(UTS_MACHINE)-linux -rb $(srpm) \
- --define='_smp_mflags %{nil}'
+ --define='_smp_mflags %{nil}' --define='make $(MAKE)'

# srcrpm-pkg
# ---------------------------------------------------------------------------
@@ -89,7 +89,8 @@ binrpm-pkg:
$(MAKE) -f $(srctree)/Makefile
$(CONFIG_SHELL) $(MKSPEC) prebuilt > $(objtree)/binkernel.spec
+rpmbuild $(RPMOPTS) --define "_builddir $(objtree)" --target \
- $(UTS_MACHINE)-linux -bb $(objtree)/binkernel.spec
+ $(UTS_MACHINE)-linux -bb $(objtree)/binkernel.spec \
+ --define='make $(MAKE)'

# deb-pkg srcdeb-pkg bindeb-pkg
# ---------------------------------------------------------------------------
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index a83b17b4a0d9..9b2b4386019d 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -38,6 +38,8 @@ EXCLUDES="$RCS_TAR_IGNORE --exclude=*vmlinux* --exclude=*.mod \
# $S: this line is enabled only when building source package
# $M: this line is enabled only when CONFIG_MODULES is enabled
sed -e '/^DEL/d' -e 's/^\t*//' <<EOF
+%{!?make: %define make make}
+
Name: kernel
Summary: The Linux Kernel
Version: $__KERNELRELEASE
@@ -89,19 +91,19 @@ $S cp %{SOURCE1} .config
$S patch -p1 < %{SOURCE2}
$S
$S %build
-$S $MAKE %{?_smp_mflags} KERNELRELEASE=$KERNELRELEASE KBUILD_BUILD_VERSION=%{release}
+$S %{make} %{?_smp_mflags} KERNELRELEASE=$KERNELRELEASE KBUILD_BUILD_VERSION=%{release}
$S
%install
mkdir -p %{buildroot}/boot
%ifarch ia64
mkdir -p %{buildroot}/boot/efi
- cp \$($MAKE -s image_name) %{buildroot}/boot/efi/vmlinuz-$KERNELRELEASE
+ cp \$(%{make} -s image_name) %{buildroot}/boot/efi/vmlinuz-$KERNELRELEASE
ln -s efi/vmlinuz-$KERNELRELEASE %{buildroot}/boot/
%else
- cp \$($MAKE -s image_name) %{buildroot}/boot/vmlinuz-$KERNELRELEASE
+ cp \$(%{make} -s image_name) %{buildroot}/boot/vmlinuz-$KERNELRELEASE
%endif
-$M $MAKE %{?_smp_mflags} INSTALL_MOD_PATH=%{buildroot} modules_install
- $MAKE %{?_smp_mflags} INSTALL_HDR_PATH=%{buildroot}/usr headers_install
+$M %{make} %{?_smp_mflags} INSTALL_MOD_PATH=%{buildroot} modules_install
+ %{make} %{?_smp_mflags} INSTALL_HDR_PATH=%{buildroot}/usr headers_install
cp System.map %{buildroot}/boot/System.map-$KERNELRELEASE
cp .config %{buildroot}/boot/config-$KERNELRELEASE
$S$M rm -f %{buildroot}/lib/modules/$KERNELRELEASE/build
--
2.39.2