WKGR='10.4.11_i386_xnu'
TARS='
http://www.opensource.apple.com/tarballs/IOKitUser/IOKitUser-297.13.tar.gz
http://www.opensource.apple.com/tarballs/Libstreams/Libstreams-24.1.tar.gz
http://www.opensource.apple.com/tarballs/bootstrap_cmds/bootstrap_cmds-49.tar.gz
http://www.opensource.apple.com/tarballs/cctools/cctools-622.5.tar.gz
http://www.opensource.apple.com/tarballs/cxxfilt/cxxfilt-3.tar.gz
http://www.opensource.apple.com/tarballs/kext_tools/kext_tools-65.76.tar.gz
http://www.opensource.apple.com/tarballs/xnu/xnu-792.25.20.tar.gz
'
[ -d "$WKGR" ] || mkdir "$WKGR"	;
(cd "$WKGR"	&&
for f in $TARS; do
  curl -RO -C - "$f"
done
)