Zenity 3.8 list output bug on Sabayon

Zenity 3.8.0 on Sabayon 13.12 has a bug that doubles the output of list with seperating pipe, as explained here:

https://bugs.launchpad.net/ubuntu/+source/zenity/+bug/1247137

 My workaround was to download latest source from:

https://git.gnome.org/browse/zenity

Download the package:

ZENITY_3_10_0.tar.gz

Ensure the following are installed:

automake
gcc
gnome-common (small)
yelp-tools

Extract, make and install:

cd ZENITY_3_10_0
autogen.sh
make
sudo make install