skeinsum is an implementation of version 1.3 of the Skein cryptographic hash
function. It is licensed under version 3 of the GNU General Public License
-or, at your option, any later version. See COPYING for details. See
-the INSTALL file for installation information.
+or, at your option, any later version. See COPYING for details.
+
+First run autoreconf --install; then see the INSTALL file for
+installation information.
Once the software is installed, invoke skein256sum, skein512sum, or
skein1024sum with the --help option to see usage information.