Prevent compilation issues with boost-1.60.0. Reported upstream at https://github.com/csound/csound/issues/570 --- Csound6.05/Opcodes/chua/ChuaOscillator.cpp 2015-04-25 14:06:22.995646234 -0500 +++ Csound6.05/Opcodes/chua/ChuaOscillator.cpp 2015-12-21 10:31:58.182362640 -0600 @@ -117,11 +117,12 @@ // d = sys_variables(12); // gnor = a*(x.^3) + b*(x.^2) + c*x + d; -#include <OpcodeBase.hpp> #include <boost/numeric/ublas/vector.hpp> using namespace boost::numeric; #include <cmath> +#include <OpcodeBase.hpp> + #undef CS_KSMPS #define CS_KSMPS (opds.insdshead->ksmps)