Fix cmake warnings

src/api-server/model/AccessTokenClaims.h

@@ -71,6 +71,7 @@ typedef struct audience_s {
         // TODO:
       }
     }
+    return *this;
     // TODO:
   }
 

src/api-server/model/SubscriptionData.h

@@ -86,6 +86,7 @@ typedef struct subscription_condition_api_s {
 
   subscription_condition_api_s& operator=(subscription_condition_api_s& s) {
     // TODO:
+    return *this;
   }
 
   friend void to_json(

src/common/3gpp_29.510.h

@@ -191,6 +191,7 @@ typedef struct subscription_condition_s {
         // TODO:
       }
     }
+    return *this;
     // TODO:
   }
 
@@ -258,6 +259,7 @@ typedef struct nf_service_version_s {
   nf_service_version_s& operator=(const nf_service_version_s& s) {
     api_version_in_uri = s.api_version_in_uri;
     api_full_version   = s.api_full_version;
+    return *this;
   }
 
   std::string to_string() const {

src/nrf_app/nrf_jwt.cpp

@@ -54,6 +54,7 @@ bool nrf_jwt::generate_signature(
 
   // Get the encoded string/assertion
   signature = obj.signature();
+  return true;
 }
 
 //------------------------------------------------------------------------------
@@ -75,6 +76,7 @@ bool nrf_jwt::generate_signature(
 
   // Get the encoded string/assertion
   signature = obj.signature();
+  return true;
 }
 
 //------------------------------------------------------------------------------
@@ -83,6 +85,7 @@ bool nrf_jwt::get_secret_key(
     const std::string& target_nf_type, std::string& key) const {
   // TODO:
   key = "secret";
+  return true;
 }
 
 //------------------------------------------------------------------------------
@@ -91,6 +94,7 @@ bool nrf_jwt::get_secret_key(
     std::string& key) const {
   // TODO:
   key = "secret";
+  return true;
 }
 
 //------------------------------------------------------------------------------