Twin directories of gnatstub:

[DIR]  ftp://ftp.dit.upm.es/mirrors/cs.nyu.edu/pub/gnat/3.12p/gnatstub/
[DIR]  ftp://ftp.dit.upm.es/mirrors/cs.nyu.edu/pub/gnat/gnatstub/
[DIR]  ftp://ftp.cs.kuleuven.be/pub/Ada-Belgium/mirrors/gnu-ada/OLD/3.12p/gnatstub/
[DIR]  ftp://ftp.cs.kuleuven.be/pub/Ada-Belgium/ase/ase02_02/lang/ada/gnat/3.12p/gnatstub/
pkg://asis-3.15p_1.tbz:4464201/asis-3.15p-src/tools/  downloads[DIR]3  asis-3.15p_1.tbz/asis-3.15p-src/tools/gnatstub/
pkg://asis-doc_2005-3_all.deb:537502/asis-3.4.4/tools/  info  downloads[DIR]3  asis-doc_2005-3_all.deb/asis-3.4.4/tools/gnatstub/
pkg://asis-gcc-4.1.2.tar.bz2:2617806/asis-4.1.1/tools/  downloads[DIR]3  asis-gcc-4.1.2.tar.bz2/asis-4.1.1/tools/gnatstub/
pkg://asis-gcc-4.2.2.tar.bz2:2474467/asis-4.1.2/tools/  downloads[DIR]3  asis-gcc-4.2.2.tar.bz2/asis-4.1.2/tools/gnatstub/
pkg://asis-gcc-4.3.0_pre132166.tar.bz2:2552217/asis-4.2.2/tools/  downloads[DIR]3  asis-gcc-4.3.0_pre132166.tar.bz2/asis-4.2.2/tools/gnatstub/
pkg://asis-gpl-2006.tar.bz2:1546623/asis-4.3.0_pre132166/tools/  downloads[DIR]3  asis-gpl-2006.tar.bz2/asis-4.3.0_pre132166/tools/gnatstub/
pkg://asis-gpl-2007-src.tgz:2268673/asis-2006/tools/  downloads[DIR]3  asis-gpl-2007-src.tgz/asis-2006/tools/gnatstub/
pkg://asis-gpl-2008-src.tgz:2324780/asis-2007-src/tools/  downloads[DIR]3  asis-gpl-2008-src.tgz/asis-2007-src/tools/gnatstub/
pkg://asis-programs_2005-5_alpha.deb:697302/asis-2008-src/tools/  info  downloads[DIR]3  asis-programs_2005-5_alpha.deb/asis-2008-src/tools/gnatstub/
pkg://asis_2007.orig.tar.gz:1136478/asis-2005.orig/tools/  downloads[DIR]3  asis_2007.orig.tar.gz/asis-2005.orig/tools/gnatstub/
pkg://asis_3.14p.orig.tar.gz:1399392/asis-2007.orig/tools/  downloads[DIR]3  asis_3.14p.orig.tar.gz/asis-2007.orig/tools/gnatstub/
pkg://asis_3.15p.orig.tar.gz:1400961/asis-3.14p-src/tools/  downloads[DIR]3  asis_3.15p.orig.tar.gz/asis-3.14p-src/tools/gnatstub/
pkg://asiya24-1.0-7p.noarch.rpm:1072134/asis-3.15p.orig/tools/  info  downloads[DIR]3  asiya24-1.0-7p.noarch.rpm/asis-3.15p.orig/tools/gnatstub/
[DIR]  ftp://ftp.tux.org/sites/tsx-11.mit.edu/packages/Ada/gnatstub/
[DIR]  ftp://ftp.xemacs.org/sites/tsx-11.mit.edu/packages/Ada/gnatstub/
[DIR]  ftp://ftp.gwdg.de/pub/linux/tsx-11/packages/Ada/gnatstub/