Hello!
Thanks for your suggestion. I tried it puting the libfontconfig.so 2.8 (from a Debien Sqeeze) in the lib directory of Cool V. but it's the same . Looks like the viewer still uses the system one.
For info I just tried that too with the last liden viewer SecondLife-i686-3.3.1.254524 and it's the same !
I had applied the patch of Jonnie in the Jira (see upper) and used your cmake-sl2.sh script ( --retry )... - lot of swet

- ... and with that patch Cool Viewer works perfectly .
Linden engeeners should awake as now that JIRA and its solution are days old.

Thanks again for your Viewer (Cool should be renamed Cool&Great )