> But it was in an inline function in that header, so if some binary
> package was built on a machine with ancient libc6-dev, that could be a
> half-explanation. Where do you get your binary packages from?
ftp.de.debian.org
But the system has been updated on Debian Unstable since Debian Woody
(and moved from PC to PC, from harddisk to harddisk, without reinstall).