git subrepo clone --branch=20.41.6 git@github.com:ETLCPP/etl.git components/etl

subrepo:
  subdir:   "components/etl"
  merged:   "be5537ec"
upstream:
  origin:   "git@github.com:ETLCPP/etl.git"
  branch:   "20.41.6"
  commit:   "be5537ec"
git-subrepo:
  version:  "0.4.9"
  origin:   "???"
  commit:   "???"

components/etl/zephyr/CMakeLists.txt

@@ -0,0 +1,8 @@
+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()

components/etl/zephyr/Kconfig

@@ -0,0 +1,19 @@
+config ETL
+  bool "ETL (Embedded Template Library)"
+  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

components/etl/zephyr/module.yml

@@ -0,0 +1,4 @@
+name: etl
+build:
+  cmake: zephyr
+  kconfig: zephyr/Kconfig