Added a conditional move on return if CXX 11 for polymorphic unique_pointers

src/sfizz/Macros.h

@@ -20,6 +20,9 @@
 
 #if __cplusplus > 201103L
 #define CXX14_CONSTEXPR constexpr
+#define CXX11_MOVE(x) x
 #else
 #define CXX14_CONSTEXPR
+#define CXX11_MOVE(x) std::move(x)
 #endif
+

src/sfizz/effects/Apan.cpp

@@ -21,6 +21,7 @@
 */
 
 #include "Apan.h"
+#include "Macros.h"
 #include "CommonLFO.h"
 #include "Opcode.h"
 #include <limits>
@@ -108,7 +109,7 @@ namespace fx {
             }
         }
 
-        return fx;
+        return CXX11_MOVE(fx);
     }
 
     void Apan::computeLfos(float* left, float* right, unsigned nframes)

src/sfizz/effects/Lofi.cpp

@@ -92,7 +92,7 @@ namespace fx {
             }
         }
 
-        return std::move(fx);
+        return CXX11_MOVE(fx);
     }
 
     ///