http://benji3up2kxewkqfcq7buxk2xd6zwy3zggnurkrm3l4cvwy2iipvyyad.onion/mirrors/gmpdoc/Copying.html
If it is modified by
someone else and passed on, we want their recipients to know that what they
have is not what we distributed, so that any problems introduced by others
will not reflect on our reputation. More precisely, the GNU MP library is dual licensed, under the conditions of
the GNU Lesser General Public License version 3 (see COPYING.LESSERv3 ), or the GNU General Public License version 2 (see COPYINGv2 ).