Lopsub is available as a Debian package these days, so remove the
lopsub download and installation instructions.
-Besides a working C compiler, gnu m4, gnu make and the
-[lopsub](http://people.tuebingen.mpg.de/maan/lopsub/) library must be
-installed to to build and install this package. Download and install
-lopsub with
-
- git clone git://git.tuebingen.mpg.de/lopsub
- cd lopsub && make && sudo make install
+Besides a working C compiler, gnu m4, gnu make and the lopsub library
+must be installed to to build and install this package.
If everything mentioned above is available on your system, type