Selon Christos Zoulas <christos@zoulas.com>:

> You could and then set LD_DEBUG.

Done. I found the bug. The shell script responsible for setting up the 
environnement of opera setenv's a variable called LD_PRELOAD to nil. It 
breaks ld.elf_so. Commenting out the thing fixes the bug. It seems to 
be a workaround for some Java Runtime distribution.

Go figure.

More fright than evil, as we say here.

Thanks for your input and help

Vincent

PS : by the way, the LD_DEBUG variable seems to have no effect. I have 
the debug output with or without it.