Merge branch 'master' into jgrpp

# Conflicts:
#	src/depot_type.h
#	src/lang/german.txt
#	src/order_gui.cpp
#	src/pathfinder/yapf/yapf_rail.cpp
#	src/script/api/script_window.hpp.in
#	src/settings_table.cpp
#	src/train_cmd.cpp

cmake/scripts/GenerateWidget.cmake

@@ -13,6 +13,7 @@ cmake_minimum_required(VERSION 3.5)
 # The parameter "enumname" specifies the enumeration to extract. This can also be a regular expression.
 # The parameter "filename" specifies the relative path to the file, where the enumeration is extracted from. This can also be a glob expression.
 #
+# All files where enumerations are extracted from are automatically added via #include
 #
 
 if(NOT GENERATE_SOURCE_FILE)
@@ -41,6 +42,7 @@ foreach(ENUM IN LISTS ENUM_LINES)
 
         string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" FILE ${FILE})
         string(APPEND ${PLACE_HOLDER} "\n${ADD_INDENT}/* automatically generated from ${FILE} */")
+        list(APPEND INCLUDES "#include \"${FILE}\"")
 
         foreach(LINE IN LISTS SOURCE_LINES)
             string(REPLACE "${RM_INDENT}" "" LINE "${LINE}")
@@ -116,4 +118,7 @@ foreach(ENUM IN LISTS ENUM_LINES)
     endforeach()
  endforeach()
 
+ list(REMOVE_DUPLICATES INCLUDES)
+ string(REPLACE ";" "\n" INCLUDES "${INCLUDES}")
+
 configure_file(${GENERATE_SOURCE_FILE} ${GENERATE_BINARY_FILE})