Twin directories of libs:

[DIR]  ftp://ftp.gnome.org/mirror/debian-misc/debian-kfreebsd/pool-armel/main/libs/
[DIR]  ftp://ftp.heitec.net/repo/src/contrib/groff/src/libs/
[DIR]  ftp://ftp.nectec.or.th/.b/5/ubuntu-official/archive/pool/universe/libs/
[DIR]  ftp://ftp.il.kernel.org/pub/linux/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.ucr.ac.cr/pub/Unix/linux/distribuciones/ubuntu/pool/universe/libs/
[DIR]  ftp://208.209.50.19/pub/linux/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.isr.ist.utl.pt/.disk3/finkmirrors.net/finkinfo/10.4/unstable/main/finkinfo/libs/
[DIR]  ftp://ftp.udc.es/mirror/NetBSD/NetBSD-release-2-0/src/gnu/dist/groff/src/libs/
[DIR]  ftp://ftp.informatik.hu-berlin.de/pub2/Mirrors/ftp.de.debian.org/debian/pool/main/libs/
[DIR]  ftp://ftp.il.kernel.org/pub/linux/debian/pool/main/libs/
[DIR]  ftp://ftp.uni-giessen.de/pub/linux/debian/pool/main/libs/
[DIR]  ftp://ftp.kaist.ac.kr/debian/pool/main/libs/
[DIR]  ftp://ftp.lami.univ-evry.fr/debian/pool/main/libs/
[DIR]  ftp://ftp.uevora.pt/debian/pool/main/libs/
[DIR]  ftp://ftp.ula.ve/linux/distribuciones/debian/pool/main/libs/
[DIR]  ftp://ftp.pl.debian.org/pub/debian/pool/main/libs/
[DIR]  ftp://ftp.linux.pt/pub/mirrors/debian/pool/main/libs/
[DIR]  ftp://ftp.sun.ac.za/pub/mirrors/debian2/pool/main/libs/
[DIR]  ftp://ftp.gnome.org/mirror/debian-misc/debian-kfreebsd/pool-kfreebsd-amd64/main/libs/
[DIR]  ftp://ftp.gnome.org/mirror/debian-misc/debian-kfreebsd/pool-kfreebsd-i386/main/libs/
[DIR]  ftp://ftp.isr.ist.utl.pt/.disk3/finkmirrors.net/finkinfo/10.3/stable/main/finkinfo/libs/
[DIR]  ftp://ftp.isr.ist.utl.pt/.disk3/finkmirrors.net/finkinfo/10.3/unstable/main/finkinfo/libs/
[DIR]  ftp://ftp.isr.ist.utl.pt/.disk3/finkmirrors.net/finkinfo/10.4/stable/main/finkinfo/libs/
[DIR]  ftp://ftp.dei.uc.pt/pub/linux/ubuntu/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.rz.tu-bs.de/pub/mirror/.mounts/sdc1/archive.ubuntu.com/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.lv.kernel.org/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.tuke.sk/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.sci.usq.edu.au/pub/debian/debian/pool/main/libs/
[DIR]  ftp://ftp.cesnet.cz/.vol/archive.ubuntu.com/mirror/ubuntu/pool/universe/libs/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-5.9/testing/libs/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-5.9/testing/libs/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-5.9/source/testing/libs/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-5.9/source/testing/libs/
[DIR]  ftp://208.209.50.19/pub/.vol02/NetBSD/NetBSD-release-3-1/src/gnu/usr.bin/groff/src/libs/
[DIR]  ftp://ftp.estpak.ee/pub/NetBSD/NetBSD-release-3-1/src/gnu/usr.bin/groff/src/libs/
[DIR]  ftp://ftp5.freebsd.org/pub/NetBSD/NetBSD-release-3-1/src/gnu/usr.bin/groff/src/libs/
[DIR]  ftp://ftp.mtu.ru/.4/NetBSD/NetBSD-release-3-1/src/gnu/dist/groff/src/libs/
[DIR]  ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/gnu/dist/groff/src/libs/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-1/src/gnu/dist/groff/src/libs/
[DIR]  ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-0/src/gnu/dist/groff/src/libs/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-0/src/gnu/dist/groff/src/libs/
[DIR]  ftp://ftp.cesnet.cz/.vol/releases.ubuntulinux.org/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.cesnet.cz/.vol/releases.ubuntulinux.org/ubuntu/pool/multiverse/libs/
[DIR]  ftp://ftp.cesnet.cz/.vol/releases.ubuntulinux.org/ubuntu/pool/main/libs/
[DIR]  ftp://ftp.udc.es/mirror/ubuntu/pool/universe/libs/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-current/packages/libs/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-current/packages/libs/
[DIR]  ftp://ftp.linux.it/ubuntu/pool/universe/libs/
[DIR]  ftp://ftp.linux.it/ubuntu/pool/multiverse/libs/
[DIR]  ftp://ftp.linux.it/ubuntu/pool/main/libs/