Add explicit template instantiation to work around an s390x problem:
https://bugzilla.redhat.com/show_bug.cgi?id=1794127

--- a/src/util/lp/lp_primal_core_solver.cpp
+++ b/src/util/lp/lp_primal_core_solver.cpp
@@ -38,5 +38,6 @@ template void lp::lp_primal_core_solver<
 template bool lp::lp_primal_core_solver<lp::mpq, lp::mpq>::update_basis_and_x_tableau(int, int, lp::mpq const&);
 template bool lp::lp_primal_core_solver<double, double>::update_basis_and_x_tableau(int, int, double const&);
 template bool lp::lp_primal_core_solver<lp::mpq, lp::numeric_pair<lp::mpq> >::update_basis_and_x_tableau(int, int, lp::numeric_pair<lp::mpq> const&);
+template void lp::lp_primal_core_solver<rational, lp::numeric_pair<rational> >::update_inf_cost_for_column_tableau(unsigned);
 
 }