CScript opret; uint8_t evalcode = EVAL_MUSIG; opret << OP_RETURN << E_MARSHAL(ss << evalcode << funcid << combined_pk);

src/cc/cclib.cpp

@@ -525,7 +525,7 @@ cJSON *cclib_reparse(int32_t *nump,cJSON *origparams) // assumes origparams will
                 newstr[j++] = '"';
                 i += 2;
             }
-            else if ( jsonstr[i] == ''' )
+            else if ( jsonstr[i] == '\'' )
                 newstr[j++] = '"';
             else newstr[j++] = jsonstr[i];
         }

src/cc/musig.cpp

@@ -22,6 +22,7 @@
 
 uint256 musig_msghash(uint256 prevhash,int32_t prevn,CTxOut vout,secp256k1_pubkey combined_pk)
 {
+    CScript data;
     std::vector<uint8_t> data; uint256 hash; int32_t len = 0;
     data << E_MARSHAL(ss << prevhash << prevn << vout << combined_pk);
 fprintf(stderr,"data size %d\n",(int32_t)data.size());