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Subject[PATCH 3.4 05/13] deb-pkg: Fix cross-building linux-headers package
Date
3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@decadent.org.uk>

commit f8ce239dfc7ba9add41d9ecdc5e7810738f839fa upstream.

builddeb generates a control file that says the linux-headers package
can only be built for the build system primary architecture. This
breaks cross-building configurations. We should use $debarch for this
instead.

Since $debarch is not yet set when generating the control file, set
Architecture: any and use control file variables to fill in the
description.

Fixes: cd8d60a20a45 ('kbuild: create linux-headers package in deb-pkg')
Reported-and-tested-by: "Niew, Sh." <shniew@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
scripts/package/builddeb | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -62,7 +62,7 @@ create_package() {
fi

# Create the package
- dpkg-gencontrol -isp $forcearch -p$pname -P"$pdir"
+ dpkg-gencontrol -isp $forcearch -Vkernel:debarch="${debarch:-$(dpkg --print-architecture)}" -p$pname -P"$pdir"
dpkg --build "$pdir" ..
}

@@ -252,15 +252,14 @@ mkdir -p "$destdir"
(cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
-arch=$(dpkg --print-architecture)

cat <<EOF >> debian/control

Package: $kernel_headers_packagename
Provides: linux-headers, linux-headers-2.6
-Architecture: $arch
-Description: Linux kernel headers for $KERNELRELEASE on $arch
- This package provides kernel header files for $KERNELRELEASE on $arch
+Architecture: any
+Description: Linux kernel headers for $KERNELRELEASE on \${kernel:debarch}
+ This package provides kernel header files for $KERNELRELEASE on \${kernel:debarch}
.
This is useful for people who need to build external modules
EOF



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