On Mon, Sep 12, 2016 at 3:12 PM, Nux! <nux at li.nux.ro> wrote: > Hi, > Name : gmp > Epoch : 1 > Version : 5.1.1 > Release : 5.el7 > Architecture: x86_64 That seems to be the culprit. On 7.2.1511 I have gmp 6.0.0 and nettle seems to be compiled with it. You should try opening a ticket on centos bugzilla, something is wrong with your release. regards, Nikos