build qemu also with python from virtualenv

Author: f0rki

qemu/install

@@ -1,11 +1,10 @@
 #!/bin/bash
+set -e -o pipefail
 
 curl http://wiki.qemu-project.org/download/qemu-2.6.1.tar.bz2 | tar xvj
 cd qemu-2.6.1
-if [[ "$(python --version 2>&1)" =~ Python\ 3 ]]; then
-    ./configure "--prefix=$(dirname $PWD)" "--python=$(which python2)"
-else
-    ./configure "--prefix=$(dirname $PWD)"
-fi
+
+source ctf-tools-venv-activate
+./configure "--prefix=$(dirname $PWD)" "--python=$(which python)"
 make -j $(nproc)
 make install