Marc, It's handy to learn that there is an atexit bug. Thanks. My debian mirror hasn't got version 2.2.4 yet. I'll have to look for it elsewhere I guess. debian:~# apt-get install libc6/unstable Reading Package Lists... Done Building Dependency Tree... Done Selected version 2.2.3-10 (Debian:unstable) for libc6 Sorry, libc6 is already the newest version. 0 packages upgraded, 0 newly installed, 0 to remove and 6 not upgraded. Nick