GNU LIBC 6
The Debian group is busy building Debian 2.0, its first distribution
based on GNU LIBC 6 for all platforms, including the i386. LIBC 6
re-unites the Linux C library with the GNU C library used on other
platforms, and improves compatibility of Linux with POSIX standards.
The Debian 2.0 developmental snapshot is at
Debian 2.0 will continue to support the LIBC 5 applications that currently run under Debian 1.3 and other Linux distributions.