3     # Infer an IDF_PATH relative to the tools/cmake directory
8     set(idf_path $ENV{IDF_PATH})  variable
10     # Environment IDF_PATH should match the inferred IDF_PATH. If not, warn the user.
13     if(idf_path)
14         get_filename_component(idf_path "${idf_path}" REALPATH)
15         file(TO_CMAKE_PATH "${idf_path}" idf_path)
17         if(NOT idf_path STREQUAL _idf_path)
18             message(WARNING "IDF_PATH environment variable is different from inferred IDF_PATH.
20                             CMake files. Environment IDF_PATH will be used for the build:
21                             ${idf_path}")
24         # Zephyr: remove IDF_PATH build warning
25 …  # message(WARNING "IDF_PATH environment variable not found. Setting IDF_PATH to '${_idf_path}'.")
26         set(idf_path ${_idf_path})  variable
27         set(ENV{IDF_PATH} ${_idf_path})
32         "${idf_path}/tools/cmake"
33         "${idf_path}/tools/cmake/third_party"
37     set(IDF_PATH ${idf_path})  variable
51     __build_init("${idf_path}")