Building latest bluez with pbuilder

Wanted to learn how to use pbuilder to create bluez (which I am calling 5.37) from the latest code.

First I have Mint Debian Betsy (http://www.linuxmint.com/download_lmde.php) running under vmware fusion.

To get pbuilder installed I followed this blog (https://jodal.no/2015/03/08/building-arm-debs-with-pbuilder/). So first you create .pbuilderrc and put it in the home directory. One challenge I found is that sudo would require that .pbuilderrc in /root as well. So put it in both or I read to just put it in /etc/pbuilderrc. I simplified the file since I only care about arm:

#!/bin/sh

set -e

if [ "$OS" == "debian" ]; then
MIRRORSITE="http://ftp.debian.org/debian/"
COMPONENTS="main contrib non-free"
DEBOOTSTRAPOPTS=("${DEBOOTSTRAPOPTS[@]}"
"--keyring=/usr/share/keyrings/debian-archive-keyring.gpg")
: ${DIST:="jessie"}
: ${ARCH:="armhf"}
else
echo "Unknown OS: $OS"
exit 1
fi

if [ "$DIST" == "" ]; then
echo "DIST is not set"
exit 1
fi

if [ "$ARCH" == "" ]; then
echo "ARCH is not set"
exit 1
fi

NAME="$OS-$DIST-$ARCH"

if [ "$ARCH" == "armel" ] && [ "$(dpkg --print-architecture)" != "armel" ]; then
DEBOOTSTRAP="qemu-debootstrap"
fi
if [ "$ARCH" == "armhf" ] && [ "$(dpkg --print-architecture)" != "armhf" ]; then
DEBOOTSTRAP="qemu-debootstrap"
fi

DEBOOTSTRAPOPTS=("${DEBOOTSTRAPOPTS[@]}" "--arch=$ARCH")
BASETGZ="/var/cache/pbuilder/$NAME-base.tgz"
DISTRIBUTION="$DIST"
BUILDRESULT="/var/cache/pbuilder/$NAME/result/"
APTCACHE="/var/cache/pbuilder/$NAME/aptcache/"
BUILDPLACE="/var/cache/pbuilder/build"
#HOOKDIR="/var/cache/pbuilder/hook.d/"

With that in place, install the required debian packages:

apt-get install pbuilder qemu-user-static

And I only need the debian keyring:

apt-get install debian-archive-keyring

Which is installed here:

/usr/share/keyrings/

I also ran the following to get the bluez dependencies:

apt-get build-dep bluez

Now create the virtual image:

OS=debian DIST=jessie ARCH=armhf pbuilder --create

The image is created here:

/var/cache/pbuilder

With pbuilder ready I can now prepare bluez by first grabbing the latest git (will create a bluez folder in the current directory):

git clone git://git.kernel.org/pub/scm/bluetooth/bluez.git

We want to get the 5.37 release so we checkout as follows:

git checkout tags/5.37

Now some debian package pieces are needed and can be retrieved from http://http.debian.net/debian/pool/main/b/bluez/:

wget http://http.debian.net/debian/pool/main/b/bluez/bluez_5.36.orig.tar.xz

wget http://http.debian.net/debian/pool/main/b/bluez/bluez_5.36-1.dsc

wget http://http.debian.net/debian/pool/main/b/bluez/bluez_5.36-1.debian.tar.xz

now uncompress the debian folder and place in the bluez folder

tar xJvf bluez_5.36-1.debian.tar.xz -C ./bluez

Now we want to create a new number for our purposes, which we be 5.37. To get pbuilder to work, change the version of the downloaded files from 5.36 to 5.37:

cp bluez_5.36.orig.tar.xz bluez_5.37.orig.tar.xz
cp bluez_5.36-1.dsc bluez_5.37-1.dsc

Now use an editor (like vim) to modify the changelog in bluez/debian to a new version.

vim ./debian/changelog

It is important that the change match the previous entries and there is no leading spaces. Something like this will suffice:

bluez (5.37-1) unstable; urgency=medium

  * Update to 5.37. 

-- Name email Sat, 07 Jan 2016 11:47:02 +0900

The changes made in the latest bluez have to be made into a patch, quilt is the tool to do this properly. However, for a quick and dirty method just run the build (want to be in the bluez folder when running this command):

cd bluez
OS=debian DIST=jessie ARCH=armhf pdebuild --debbuildopts "-j4 -b -uc -us"

Which results in an error similar to the following:

dpkg-source: error: aborting due to unexpected upstream changes, see /tmp/bluez_5.37-1.diff.XW1beT
dpkg-source: info: you can integrate the local changes with dpkg-source --commit
dpkg-buildpackage: error: dpkg-source -b bluez gave error exit status 2

So copy the differences into a patch and add it to patch series file as follows:

cp /tmp/bluez_5.37-1.diff.XW1beT debian/patches/latestmods.patch
echo latestmods.patch >> debian/patches/series

Now run the command again and wait:

OS=debian DIST=jessie ARCH=armhf pdebuild --debbuildopts "-j4 -b -uc -us"

The end result will be the creation of a bunch of debian bluez packages in /var/cache/pbuilder/debian-jessie-armhf/result:

bluetooth_5.37-1_all.deb
bluez-cups_5.37-1_armhf.deb
bluez-dbg_5.37-1_armhf.deb
bluez-hcidump_5.37-1_armhf.deb
bluez-obexd_5.37-1_armhf.deb
bluez-test-scripts_5.37-1_all.deb
bluez_5.37-1_armhf.deb
libbluetooth-dev_5.37-1_armhf.deb
libbluetooth3-dbg_5.37-1_armhf.deb
libbluetooth3_5.37-1_armhf.deb