Since commit 491b146d4c13 ("kbuild: builddeb: Eliminate debian/arch
use"), direct execution of debian/rules results in the following error:
dpkg-architecture: error: unknown option 'DEB_HOST_MULTIARCH'
The current code:
dpkg-architecture -a$DEB_HOST_ARCH -qDEB_HOST_MULTIARCH
... does not look sensible because:
- For this code to work correctly, DEB_HOST_ARCH must be pre-defined,
which is true when the packages are built via dpkg-buildpackage.
In this case, DEB_HOST_MULTIARCH is also likely defined, hence there
is no need to query DEB_HOST_MULTIARCH in the first place.
- If DEB_HOST_MULTIARCH is undefined, DEB_HOST_ARCH is likely undefined
too. So, you cannot query DEB_HOST_MULTIARCH in this way. This is
mostly the case where debian/rules is directly executed.
When debian/rules is directly executed, querying DEB_HOST_MUCHARCH is
not enough because we need to know DEB_{BUILD,HOST}_GNU_TYPE as well.
All DEB_* variables are defined when the package build is initiated by
dpkg-buildpackage, but otherwise, let's call dpkg-architecture to set
all DEB_* environment variables.
This implementation relies on dpkg commit 7c54fa2b232e
("dpkg-architecture: Add a --print-format option").
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
scripts/package/builddeb | 5 ++---
scripts/package/debian/rules | 12 +++++++++++-
2 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 2fe51e6919da..2eb4910f0ef3 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -171,9 +171,8 @@ install_libc_headers () {
# move asm headers to /usr/include/<libc-machine>/asm to match the structure
# used by Debian-based distros (to support multi-arch)
- host_arch=$(dpkg-architecture -a$DEB_HOST_ARCH -qDEB_HOST_MULTIARCH)
- mkdir $pdir/usr/include/$host_arch
- mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/
+ mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
+ mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
}
rm -f debian/files
diff --git a/scripts/package/debian/rules b/scripts/package/debian/rules
index 529b71b55efa..8f24a8e84bf2 100755
--- a/scripts/package/debian/rules
+++ b/scripts/package/debian/rules
@@ -30,5 +30,15 @@ build-arch:
.PHONY: clean
clean:
- rm -rf debian/files debian/linux-*
+ rm -rf debian/files debian/linux-* debian/deb-env.vars
$(MAKE) -f $(srctree)/Makefile ARCH=$(ARCH) clean
+
+# If DEB_HOST_ARCH is empty, it is likely that debian/rules was executed
+# directly. Run 'dpkg-architecture --print-set --print-format=make' to
+# generate a makefile construct that exports all DEB_* variables.
+ifndef DEB_HOST_ARCH
+-include debian/deb-env.vars
+
+debian/deb-env.vars:
+ dpkg-architecture -a$$(cat debian/arch) --print-set --print-format=make > $@
+endif
--
2.40.1
