Fix Compiler warnings of previous merged PRs

src/Gui/SoDatumLabel.cpp

@@ -460,6 +460,8 @@ SbVec3f SoDatumLabel::getLabelTextCenter()
     else if (datumtype.getValue() == SoDatumLabel::ANGLE) {
         return getLabelTextCenterAngle(p1);
     }
+
+    return p1;
 }
 
 SbVec3f SoDatumLabel::getLabelTextCenterDistance(const SbVec3f& p1, const SbVec3f& p2)

src/Mod/Sketcher/Gui/CommandConstraints.cpp

@@ -2520,6 +2520,8 @@ protected:
 
             return !arcInfo.isRadiusDoF();
         }
+
+        return false;
     }
 
     void restartCommand(const char* cstrName) {