more fixes

pysharp/pysharp.cc

@@ -263,7 +263,7 @@ py::array py_upsample_to_cc(const py::array &in, size_t nrings_out, bool has_np,
   auto out2 = to_mav<double,2>(out,true);
     MR_assert(out2.writable(),"x1");
   upsample_to_cc(in2, has_np, has_sp, out2);
-  return out;
+  return move(out);
   }
 
 } // unnamed namespace

src/mr_util/sharp/sharp.h

@@ -67,7 +67,7 @@ class sharp_geom_info
 class sharp_alm_info
   {
   public:
-    ~sharp_alm_info() {}
+    virtual ~sharp_alm_info() {}
     virtual size_t lmax() const = 0;
     virtual size_t mmax() const = 0;
     virtual size_t nm() const = 0;