Twin directories of posix:

[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/debian/linux-headers-2.6.28-libre-fsf2/usr/src/linux-headers-2.6.28-l/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/ext3/fs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/tmpfs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/reiserfs/fs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/jfs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/fs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/ext4/fs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/ext2/fs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/gnu/tmp/linux-libre-fsf2_2.6.28/linux-2.6.28/include/config/xfs/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/gnu/lib/libregex/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/contrib/awk/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/src/contrib/gcclibs/libgomp/config/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.cs.kuleuven.be/pub/Ada-Belgium/ase/ase02_02/bindings/posix/
[DIR]  ftp://ftp.cs.kuleuven.be/pub/Ada-Belgium/mirrors/pal/bindings/posix/
[DIR]  ftp://ftp.wu-wien.ac.at/pub/src/lang/sather/Sather/System/Common/ActiveThreads/tests/posix/
[DIR]  ftp://ftp.cs.york.ac.uk/.snapshot/weekly.2/pub/leo/york-msc-2007/information/posix/
[DIR]  ftp://ftp.cs.york.ac.uk/.snapshot/weekly.0/pub/leo/york-msc-2007/information/posix/
[DIR]  ftp://ftp.cs.york.ac.uk/.snapshot/weekly.3/pub/leo/york-msc-2007/information/posix/
[DIR]  ftp://ftp.cs.york.ac.uk/pub/leo/york-msc-2007/information/posix/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/gnu/lib/libregex/posix/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/contrib/gcclibs/libgomp/config/posix/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/contrib/awk/posix/
[DIR]  ftp://ftp.andr.ru/pub/os/qnx/6/svn/repos/coreos_pub/trunk/utils/g/gawk/posix/
[DIR]  ftp://ftp.andr.ru/pub/os/qnx/6/svn/repos/coreos_pub/trunk/utils/d/diff/lib/posix/
[DIR]  ftp://debella.aszi.sztaki.hu/pub/mirrors/ftp.fsmlabs.com/pub/rtlinux/v2/older_and_not_recommended/beta15/rtl/include/posix/
[DIR]  ftp://debella.aszi.sztaki.hu/pub/mirrors/ftp.fsmlabs.com/pub/rtlinux/v2/rtlinux-2.0/rtl/include/posix/
[DIR]  ftp://ftp.lf.net/pub/unix/programming/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-4-0/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-4-0/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-1/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-1/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-0/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-0/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-current/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-current/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/gnu/lib/libregex/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/contrib/awk/posix/
[DIR]  ftp://ftp.sk.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/contrib/gcclibs/libgomp/config/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-4-0/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-4-0/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-3-1/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-3-1/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-3-0/src/gnu/dist/grep/lib/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-3-0/src/gnu/dist/diffutils/lib/posix/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-current/src/gnu/dist/grep/lib/posix/