kLIBC version 0.6.4 and GCC
3.3.5 CSD4 have been released (10/3/2011). GCC is an open source
compiler; features of the OS/2 port include fork() support, symlinks,
chroot support, and many new functions. The kLIBC runtime is used by
many OS/2 ports of Unix applications, as well as the Mozilla browsers.
Source: OS/2 Warp News and Rumors