Fix West support and add ETL configuration options to Kconfig

zephyr/CMakeLists.txt

@@ -1,2 +1,8 @@
-add_subdirectory_ifdef(CONFIG_ETL ${CMAKE_CURRENT_LIST_DIR}/.. etl)
-zephyr_link_interface_ifdef(CONFIG_ETL etl)
+if(CONFIG_ETL)
+  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/.. etl)
+  zephyr_link_interface(etl)
+
+  zephyr_compile_definitions_ifdef(CONFIG_ETL_DEBUG ETL_DEBUG)
+  zephyr_compile_definitions_ifdef(CONFIG_ETL_CHECK_PUSH_POP ETL_CHECK_PUSH_POP)
+  zephyr_compile_definitions_ifdef(CONFIG_ETL_LOG_ERRORS ETL_LOG_ERRORS)
+endif()

zephyr/Kconfig

@@ -3,3 +3,17 @@ config ETL
   depends on CPP
   help
     This option enables the 'ETL' library.
+
+if ETL
+
+config ETL_DEBUG
+  bool "Build ETL with debugging checks"
+  default y if DEBUG
+
+config ETL_CHECK_PUSH_POP
+  bool "Enable push/pop checks in ETL"
+
+config ETL_LOG_ERRORS
+  bool "Call ETL error handler instead of assert"
+
+endif # ETL

zephyr/module.yml

@@ -1,6 +1,4 @@
 name: etl
 build:
-  cmake-ext: true
-  kconfig-ext: true
   cmake: zephyr
   kconfig: zephyr/Kconfig