Kruskal alg. (src/hugo/kruskal.h, src/test/kruskal_test.cc) is (almost) done.
- Some input adaptor is still missing.
- The class and function names should be revised.
- Docs still needs some improvement.

 #! /bin/sh

 aclocal-1.7 \

 && automake-1.7 --gnu --add-missing \

 && autoconf