I have libgmp 2.6.0.0. I tried reinstalling all the packages, but get the same error. Timothy On Sat, 2018-06-02 at 11:59 +0200, Koos Pol wrote: > Op 02-06-18 om 11:21 schreef timothy: > > /usr/include/gmpxx.h:1429: undefined reference to `__gmpz_clear' > > I'd say you have an incompatible gmp library (older perhaps?) > > Koos > >