openstack - libvirt-python stopped installation of devstack using stack.sh under Ubuntu 12.04

I'm trying to install devstack under Ubuntu 12.04 using stack.sh, but I've got stuck at this error. Current python version is 2.7.3

Followed standard method of devstack installation procedure (all-in-one single machine) starting from sudo apt-get update. Let me know if further information is needed.

Reading state information... Done
libvirt-bin is already the newest version.
libvirt-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 213 not upgraded.
+ real_install_package libvirt-bin libvirt-dev
+ is_ubuntu
+ [[ -z deb ]]
+ '[' deb = deb ']'
+ apt_get install libvirt-bin libvirt-dev
++ set +o
++ grep xtrace
+ local 'xtrace=set -o xtrace'
+ set +o xtrace
+ sudo DEBIAN_FRONTEND=noninteractive http_proxy= https_proxy= no_proxy= apt-get --option Dpkg::Options::=--force-confold --assume-yes install libvirt-bin libvirt-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libvirt-bin is already the newest version.
libvirt-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 213 not upgraded.
+ pip_install_gr libvirt-python
+ local name=libvirt-python
++ get_from_global_requirements libvirt-python
++ local package=libvirt-python
+++ grep -i -h '^libvirt-python' /opt/stack/requirements/global-requirements.txt
+++ cut -d# -f1
++ local 'required_pkg=libvirt-python>=1.2.5                   '
++ [[ libvirt-python>=1.2.5                    == '' ]]
++ echo 'libvirt-python>=1.2.5'
+ local 'clean_name=libvirt-python>=1.2.5'
+ pip_install 'libvirt-python>=1.2.5'
++ set +o
++ grep xtrace
+ local 'xtrace=set -o xtrace'
+ set +o xtrace
+ sudo -H http_proxy= https_proxy= no_proxy= PIP_FIND_LINKS=file:///opt/stack/.wheelhouse /usr/local/bin/pip install 'libvirt-python>=1.2.5'
Collecting libvirt-python>=1.2.5
  Using cached libvirt-python-1.2.16.tar.gz
Building wheels for collected packages: libvirt-python
  Running setup.py bdist_wheel for libvirt-python
  Complete output from command /usr/bin/python -c "import setuptools;__file__='/tmp/pip-build-XwqhSl/libvirt-python/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmp2i3WSspip-wheel-:
  running bdist_wheel
  running build
  /usr/bin/pkg-config --print-errors --atleast-version=0.9.11 libvirt
  error: command '/usr/bin/pkg-config' failed with exit status 1
  ----------------------------------------
  Failed building wheel for libvirt-python
Failed to build libvirt-python
Installing collected packages: libvirt-python
  Running setup.py install for libvirt-python
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-XwqhSl/libvirt-python/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-_Rbsrk-record/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    /usr/bin/pkg-config --print-errors --atleast-version=0.9.11 libvirt
    error: command '/usr/bin/pkg-config' failed with exit status 1
    ----------------------------------------
Command "/usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-XwqhSl/libvirt-python/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-_Rbsrk-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-XwqhSl/libvirt-python
+ exit_trap
+ local r=1
++ jobs -p
+ jobs=
+ [[ -n '' ]]
+ kill_spinner
+ '[' '!' -z '' ']'
+ [[ 1 -ne 0 ]]
+ echo 'Error on exit'
Error on exit
+ [[ -z /opt/stack/logs ]]
+ /home/test/devstack/tools/worlddump.py -d /opt/stack/logs
World dumping... see /opt/stack/logs/worlddump-2015-06-11-125626.txt for details
+ exit 1