diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index 5d55e10713..6a7e468688 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -11,7 +11,7 @@ set(JSBSIM_PYX ${CMAKE_CURRENT_BINARY_DIR}/_jsbsim.pyx)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/jsbsim.pyx.in ${JSBSIM_PYX})
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/jsbsim.pxd ${CMAKE_CURRENT_BINARY_DIR}/_jsbsim.pxd COPYONLY)
 set_source_files_properties(${JSBSIM_PYX} PROPERTIES CYTHON_IS_CXX TRUE
-                                                     INCLUDE_DIRECTORIES ${PROJECT_SOURCE_DIR}/src)
+                                          INCLUDE_DIRECTORIES ${PROJECT_SOURCE_DIR}/src)
 
 # Autogenerate the Python module doc strings from Doxygen docs
 if(DOXYGEN_FOUND AND BUILD_DOCS)
@@ -79,11 +79,12 @@ foreach(OBJECT ${libJSBSim_SOURCE_FILES})
   if(${OBJECT} MATCHES "TARGET_OBJECTS:([^ >]+)")
     get_target_property(TARGET_SOURCE_FILES ${CMAKE_MATCH_1} SOURCES)
     get_target_property(TARGET_SOURCE_DIRECTORY ${CMAKE_MATCH_1} TARGET_DIRECTORY)
-    file(RELATIVE_PATH TARGET_PATH ${PROJECT_SOURCE_DIR} ${TARGET_SOURCE_DIRECTORY})
+    file(RELATIVE_PATH TARGET_RELATIVE_PATH ${PROJECT_SOURCE_DIR} ${TARGET_SOURCE_DIRECTORY})
+    set(TARGET_PATH ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_RELATIVE_PATH})
     file(MAKE_DIRECTORY ${TARGET_PATH})
     foreach(_FILE ${TARGET_SOURCE_FILES})
       configure_file(${TARGET_SOURCE_DIRECTORY}/${_FILE} ${TARGET_PATH}/${_FILE} COPYONLY)
-      list(APPEND SOURCE_FILES ${TARGET_PATH}/${_FILE})
+      list(APPEND SOURCE_FILES ${TARGET_RELATIVE_PATH}/${_FILE})
     endforeach()
   else()
     configure_file(${libJSBSim_DIRECTORY}/${OBJECT} ${libJSBSim_PATH}/${OBJECT} COPYONLY)
@@ -109,24 +110,26 @@ target_include_directories(_jsbsim PRIVATE ${PROJECT_SOURCE_DIR}/src)
 target_link_libraries(_jsbsim PRIVATE libJSBSim)
 set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${JSBSIM_TEST_PACKAGE_DIR})
 
-# Output directories for MSVC
-set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_DEBUG ${JSBSIM_TEST_PACKAGE_DIR})
-set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_RELEASE ${JSBSIM_TEST_PACKAGE_DIR})
-set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_MINSIZEREL ${JSBSIM_TEST_PACKAGE_DIR})
-set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_RELWITHDEBINFO ${JSBSIM_TEST_PACKAGE_DIR})
+if(WIN32)
+  # Output directories for MSVC
+  set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_DEBUG ${JSBSIM_TEST_PACKAGE_DIR})
+  set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_RELEASE ${JSBSIM_TEST_PACKAGE_DIR})
+  set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_MINSIZEREL ${JSBSIM_TEST_PACKAGE_DIR})
+  set_target_properties(_jsbsim PROPERTIES LIBRARY_OUTPUT_DIRECTORY_RELWITHDEBINFO ${JSBSIM_TEST_PACKAGE_DIR})
+
+  # Windows needs the DLL to be copied locally for unit tests to run.
+  if(BUILD_SHARED_LIBS)
+    add_custom_command(OUTPUT ${JSBSIM_TEST_PACKAGE_DIR}/JSBSim.dll
+                        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                        $<TARGET_FILE:libJSBSim>
+                        ${JSBSIM_TEST_PACKAGE_DIR})
+    add_custom_target(CopyJSBSimDLL ALL DEPENDS ${JSBSIM_TEST_PACKAGE_DIR}/JSBSim.dll)
+    add_dependencies(CopyJSBSimDLL libJSBSim)
+  endif(BUILD_SHARED_LIBS)
+endif(WIN32)
 
 add_subdirectory(fpectl)
 
-# Windows needs the DLL to be copied locally for unit tests to run.
-if(WIN32 AND BUILD_SHARED_LIBS)
-  add_custom_command(OUTPUT ${JSBSIM_TEST_PACKAGE_DIR}/JSBSim.dll
-                      COMMAND ${CMAKE_COMMAND} -E copy_if_different
-                      $<TARGET_FILE:libJSBSim>
-                      ${JSBSIM_TEST_PACKAGE_DIR})
-  add_custom_target(CopyJSBSimDLL ALL DEPENDS ${JSBSIM_TEST_PACKAGE_DIR}/JSBSim.dll)
-  add_dependencies(CopyJSBSimDLL libJSBSim)
-endif(WIN32 AND BUILD_SHARED_LIBS)
-
 # Install the JSBSim Python module
 if (INSTALL_JSBSIM_PYTHON_MODULE)
   execute_process(COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/findInstallDir.py OUTPUT_VARIABLE PYTHON_INSTALL_DIR)
diff --git a/src/input_output/FGOutputType.cpp b/src/input_output/FGOutputType.cpp
index 40e3aa997e..652137a793 100644
--- a/src/input_output/FGOutputType.cpp
+++ b/src/input_output/FGOutputType.cpp
@@ -184,9 +184,9 @@ bool FGOutputType::InitModel(void)
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-bool FGOutputType::Run(void)
+bool FGOutputType::Run(bool Holding)
 {
-  if (FGModel::Run(false)) return true;
+  if (FGModel::Run(Holding)) return true;
   if (!enabled) return true;
 
   RunPreFunctions();
diff --git a/src/input_output/FGOutputType.h b/src/input_output/FGOutputType.h
index 850150ebbb..a1a042527a 100644
--- a/src/input_output/FGOutputType.h
+++ b/src/input_output/FGOutputType.h
@@ -142,12 +142,14 @@ class FGOutputType : public FGModel
   bool InitModel(void) override;
 
   /** Executes the output directives (implement the FGModel interface).
-      This method checks that the current time step matches the output
-      rate and calls the registered "pre" functions, the output
-      generation and finally the "post" functions.
+      This method checks that the current time step matches the output rate and
+      calls the registered "pre" functions, the output generation and finally
+      the "post" functions.
+      @param Holding if true, the executive has been directed to hold the sim
+                     from advancing time.
       @result false if no error.
    */
-  bool Run(void);
+  bool Run(bool Holding) override;
 
   /** Generate the output. This is a pure method so it must be implemented by
       the classes that inherits from FGOutputType. The Print name may not be
diff --git a/src/math/FGTemplateFunc.h b/src/math/FGTemplateFunc.h
index 766d364d09..a98c0e8352 100644
--- a/src/math/FGTemplateFunc.h
+++ b/src/math/FGTemplateFunc.h
@@ -65,8 +65,11 @@ class FGTemplateFunc : public FGFunction
   }
 
 private:
-  /** FGTemplateFunc must not be bound to the property manager. The bind method
-      is therefore made private and overloaded as a no-op */
+  /* Direct calls to FGFunction::GetValue are meaningless from the public interface.
+     The method is therefore made private. */
+  using FGFunction::GetValue;
+  /* FGTemplateFunc must not be bound to the property manager. The bind method
+     is therefore made private and overloaded as a no-op */
   void bind(Element*, const std::string&) override {}
   FGPropertyValue_ptr var;
 };
diff --git a/src/models/FGOutput.cpp b/src/models/FGOutput.cpp
index f98abb5a68..c310aa5be5 100644
--- a/src/models/FGOutput.cpp
+++ b/src/models/FGOutput.cpp
@@ -99,7 +99,7 @@ bool FGOutput::Run(bool Holding)
   if (!enabled) return true;
 
   for (auto output: OutputTypes)
-    output->Run();
+    output->Run(Holding);
 
   return false;
 }
diff --git a/src/simgear/props/props.cxx b/src/simgear/props/props.cxx
index 04b872a5cf..254ea3f8ad 100644
--- a/src/simgear/props/props.cxx
+++ b/src/simgear/props/props.cxx
@@ -540,7 +540,7 @@ find_node (SGPropertyNode * current,
   using namespace boost;
   typedef split_iterator<typename range_result_iterator<Range>::type>
     PathSplitIterator;
-  
+
   PathSplitIterator itr
     = make_split_iterator(path, first_finder("/", is_equal()));
   if (*path.begin() == '/')
@@ -878,7 +878,7 @@ SGPropertyNode::SGPropertyNode (const SGPropertyNode &node)
   }
   switch (_type) {
   case props::BOOL:
-    set_bool(node.get_bool());    
+    set_bool(node.get_bool());
     break;
   case props::INT:
     set_int(node.get_int());
@@ -1305,7 +1305,7 @@ SGPropertyNode::getType () const
 }
 
 
-bool 
+bool
 SGPropertyNode::getBoolValue () const
 {
 				// Shortcut for common case
@@ -1338,7 +1338,7 @@ SGPropertyNode::getBoolValue () const
   }
 }
 
-int 
+int
 SGPropertyNode::getIntValue () const
 {
 				// Shortcut for common case
@@ -1371,7 +1371,7 @@ SGPropertyNode::getIntValue () const
   }
 }
 
-long 
+long
 SGPropertyNode::getLongValue () const
 {
 				// Shortcut for common case
@@ -1404,7 +1404,7 @@ SGPropertyNode::getLongValue () const
   }
 }
 
-float 
+float
 SGPropertyNode::getFloatValue () const
 {
 				// Shortcut for common case
@@ -1437,7 +1437,7 @@ SGPropertyNode::getFloatValue () const
   }
 }
 
-double 
+double
 SGPropertyNode::getDoubleValue () const
 {
 				// Shortcut for common case
@@ -1570,7 +1570,7 @@ SGPropertyNode::setIntValue (int value)
   case props::STRING:
   case props::UNSPECIFIED: {
     char buf[128];
-    sprintf(buf, "%d", value);
+    snprintf(buf, 128, "%d", value);
     result = set_string(buf);
     break;
   }
@@ -1621,7 +1621,7 @@ SGPropertyNode::setLongValue (long value)
   case props::STRING:
   case props::UNSPECIFIED: {
     char buf[128];
-    sprintf(buf, "%ld", value);
+    snprintf(buf, 128, "%ld", value);
     result = set_string(buf);
     break;
   }
@@ -1672,7 +1672,7 @@ SGPropertyNode::setFloatValue (float value)
   case props::STRING:
   case props::UNSPECIFIED: {
     char buf[128];
-    sprintf(buf, "%f", value);
+    snprintf(buf, 128, "%f", value);
     result = set_string(buf);
     break;
   }
@@ -1723,7 +1723,7 @@ SGPropertyNode::setDoubleValue (double value)
   case props::STRING:
   case props::UNSPECIFIED: {
     char buf[128];
-    sprintf(buf, "%f", value);
+    snprintf(buf, 128, "%f", value);
     result = set_string(buf);
     break;
   }
@@ -2558,7 +2558,7 @@ template<>
 std::ostream& SGRawBase<SGVec4d>::printOn(std::ostream& stream) const
 {
     const SGVec4d vec
-        = static_cast<const SGRawValue<SGVec4d>*>(this)->getValue();    
+        = static_cast<const SGRawValue<SGVec4d>*>(this)->getValue();
     for (int i = 0; i < 4; ++i) {
         stream << vec[i];
         if (i < 3)
diff --git a/utils/aeromatic++/Systems/Controls.h b/utils/aeromatic++/Systems/Controls.h
index a2945d3e12..fd5d16bb69 100644
--- a/utils/aeromatic++/Systems/Controls.h
+++ b/utils/aeromatic++/Systems/Controls.h
@@ -72,7 +72,7 @@ class YawDamper : public System
     void set(const float cg_loc[3]) override {
         _control->set(cg_loc);
     }
-    std::string system();
+    std::string system() override;
 
     std::string lift() override {
         return _control->lift();
@@ -111,7 +111,7 @@ class FlyByWire : public System
     void set(const float cg_loc[3]) override {
         _control->set(cg_loc);
     }
-    std::string system();
+    std::string system() override;
 
     std::string lift() override {
         return _control->lift();
@@ -146,7 +146,7 @@ class Controls : public System
     void set(const float cg_loc[3]) override {
         _control[_ctype]->set(cg_loc);
     }
-    std::string comment();
+    std::string comment() override;
     std::string fdm() override {
         return _control[_ctype]->fdm();
     }
@@ -205,4 +205,3 @@ class Controls : public System
 } /* namespace Aeromatic */
 
 #endif /* __CONTROLS_H */
-
diff --git a/utils/aeromatic++/Systems/Propulsion.h b/utils/aeromatic++/Systems/Propulsion.h
index ae6ae9eb4e..f9371a97cb 100644
--- a/utils/aeromatic++/Systems/Propulsion.h
+++ b/utils/aeromatic++/Systems/Propulsion.h
@@ -212,8 +212,8 @@ class Propulsion : public Engine
          return _propulsion[_ptype]->_thruster->thruster();
     }
 
-    void param_reset();
-    Param* param_next();
+    void param_reset() override;
+    Param* param_next() override;
 
     char _engine_name[PARAM_MAX_STRING+1] = "";
 public:
@@ -242,4 +242,3 @@ class Propulsion : public Engine
 } // namespace Aeromatic
 
 #endif /* __ENGINE_H */
-