Comment 15 for bug 1270838

Not sure if this is a red herring, but this happens during the build:

   dh_shlibdeps -O--parallel
        dpkg-shlibdeps -Tdebian/cordova-ubuntu-2.8.substvars debian/cordova-ubuntu-2.8/usr/bin/cordova-ubuntu-2.8 debian/cordova-ubuntu-2.8/usr/lib/co
rdova-ubuntu-2.8/libcoreplugins.so
dpkg-shlibdeps: warning: couldn't find library libcordovaubuntuplugin.so needed by debian/cordova-ubuntu-2.8/usr/lib/cordova-ubuntu-2.8/libcoreplugins
.so (ELF format: 'elf64-x86-64'; RPATH: '')
        dpkg-shlibdeps -Tdebian/qtdeclarative5-cordova-2.8-plugin.substvars debian/qtdeclarative5-cordova-2.8-plugin/usr/lib/x86_64-linux-gnu/qt5/qml/
CordovaUbuntu.2.8/libcordovaubuntuplugin.so

Available files during the build:
/obj-x86_64-linux-gnu/libcoreplugins.so
./obj-x86_64-linux-gnu/www/libcoreplugins.so
./debian/cordova-ubuntu-2.8/usr/lib/cordova-ubuntu-2.8/libcoreplugins.so
./debian/tmp/usr/lib/cordova-ubuntu-2.8/libcoreplugins.so

./obj-x86_64-linux-gnu/CordovaUbuntu.2.8/libcordovaubuntuplugin.so
./obj-x86_64-linux-gnu/libcordovaubuntuplugin.so
./debian/tmp/usr/lib/x86_64-linux-gnu/qt5/qml/CordovaUbuntu.2.8/libcordovaubuntuplugin.so
./debian/qtdeclarative5-cordova-2.8-plugin/usr/lib/x86_64-linux-gnu/qt5/qml/CordovaUbuntu.2.8/libcordovaubuntuplugin.so