install gnus mknbi libgdome2-0 libfilehandle-unget-perl libxkbsel-dev
Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
The following NEW packages will be installed:
  emacs21{a} [21.4a-1]  emacs21-bin-common{a} [21.4a-1]  
  emacs21-common{a} [21.4a-1]  emacsen-common{a} [1.4.16]  
  gnus [5.10.6-0.CVS.20050317-1]  libfilehandle-unget-perl [0.1621-1]  
  libgdome2-0 [0.8.1-1]  libxkbsel-dev [0.13-13]  make{a} [3.80-9]  
  mknbi [1.4.3-2]  xaw3dg{a} [1.5+E-8]  
0 packages upgraded, 11 newly installed, 0 to remove and 0 not upgraded.
Need to get 15.9 MB of archives. After unpacking 54.9 MB will be used.
WARNING: untrusted versions of the following packages will be installed!

Untrusted packages could compromise your system's security.
You should only proceed with the installation if you are certain that
this is what you want to do.

  emacs21-common libfilehandle-unget-perl libxkbsel-dev emacsen-common 
  mknbi emacs21-bin-common libgdome2-0 emacs21 gnus xaw3dg make 

Do you want to ignore this warning and proceed anyway?
To continue, enter "Yes"; to abort, enter "No": Abort.