Merge /u/geoffmc/flightgear/ branch msvc-build3 into next

https://sourceforge.net/p/flightgear/flightgear/merge-requests/182/

src/EmbeddedResources/CMakeLists.txt

@@ -1,6 +1,17 @@
 add_executable(fgrcc fgrcc.cxx fgrcc.hxx)
 target_link_libraries(fgrcc SimGearCore ${PLATFORM_LIBS})
 
+# On Windows, make sure fgrcc can be run (it needs third-party libraries) in add_custom_target
+if(MSVC)
+  set_target_properties(fgrcc PROPERTIES DEBUG_POSTFIX d)
+  if(MSVC_3RDPARTY_ROOT AND MSVC_3RDPARTY_DIR)
+    set(CMAKE_MSVCIDE_RUN_PATH ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/bin)
+  else()
+    message(FATAL_ERROR
+      "Either MSVC_3RDPARTY_ROOT or MSVC_3RDPARTY_DIR is empty or unset")
+  endif()
+endif()
+
 add_custom_target(
     embeddedresources
     COMMAND