buildworld and compat libs

[Marco Righele]

On my box buildworld fails when compat libs are enabled in make.conf:

===> lib/compat/compat22
uudecode -p /usr/src/lib/compat/compat22/libalias.so.2.4.gz.uu | gunzip 
> libalias.so.2.4
uudecode -p /usr/src/lib/compat/compat22/libc.so.3.1.bz2.uu | bzip2 -d > 
libc.so.3.1
bzip2: not found
*** Error code 127

Looks like bzip2 is not part of the build tools. Is that a bug in the 
build process or am I missing some switch/option ?
Anyway, are the compat libs needed in DragonflyBSD ? Which tool may need 
them ?

Marco