Fix compilation

src/scheme/RusanovEulerianCompositeSolverTools.hpp

@@ -17,8 +17,8 @@ double EvaluateMaxEigenValueTimesNormalLengthInGivenDirection(   // const double
   const double& c_mean,
   const Rd& normal);
 
-std::pair<double, double> toolsCompositeSolver::EvaluateMinMaxEigenValueTimesNormalLengthInGivenDirection(
-  const Rd& U_mean,
+template <class Rd>
+std::pair<double, double> EvaluateMinMaxEigenValueTimesNormalLengthInGivenDirection(const Rd& U_mean,
                                                                                     const double& c_mean,
                                                                                     const Rd& normal);