When trying to run the 4.0.13 server binary on a 64 bit machine with a Debian 6 (current stable) system, I get: $ ./server ok . server: relocation error: /lib32/libresolv.so.2: symbol strlen, version GLIBC_2.0 not defined in file libc.so.6 with link time reference Package ia32-libs is installed. Two more details: * Running it in a Debian 5 chroot (oldstable) is fine. * Running the 4.0.7 server binary on Debian 6 is also fine. Unfortunately, 4.0.13 doesn't come with the socketserver binary anymore. So now I have the workaround options to either run it in an old chroot with a self-compiled socketserver or being stuck with an old version. I opted for the first. I saw bug #509, but this applies to the current release branch (4.0) and I don't understand get the "solution" in comment #13. (license.txt file? what? Compile from trunk? Uh..)