refer here http://code.google.com/p/google-gadgets-for-linux/wiki/HowToBuild
I manage to make it work on CentOS 5.2
first time compile it complete smoothly .. but.
first time run it said cannot load ..
then do
yum install xulrunner-devel xulrunner-devel-unstable
re-compile..
and again try run
ggl-gtk
did’nt work.. then try.
ggl-gtk –help
then try
ggl-gtk -ns
then take a peek at /usr/local/share/google-gadgets
ggl-gtk analog-clock
… and it ask for permission to allow this to access network and bla..bla.. click yes..
and yes.. it popup nicely.. at the sidebar..
another screenshot..
