tools: Increase the minimal supported CMake version to 3.16

This updates the minimal supported version of CMake to 3.16, which in turn enables us to use more CMake features and have a cleaner build system. This is the version that provides most new features and also the one we use in our latest docker image for CI.
Asc91 · Jun 1, 2022 · facab8c · facab8c
1 parent 8094d87
commit facab8c
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diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 project(esp-idf C CXX ASM)
 
 if(CMAKE_CURRENT_LIST_DIR STREQUAL CMAKE_SOURCE_DIR)

diff --git a/components/bootloader/subproject/CMakeLists.txt b/components/bootloader/subproject/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 if(NOT SDKCONFIG)
     message(FATAL_ERROR "Bootloader subproject expects the SDKCONFIG variable to be passed "

diff --git a/components/cxx/test_apps/exception/CMakeLists.txt b/components/cxx/test_apps/exception/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(COMPONENTS main)
 

diff --git a/components/cxx/test_apps/exception_no_except/CMakeLists.txt b/components/cxx/test_apps/exception_no_except/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(COMPONENTS main)
 

diff --git a/components/cxx/test_apps/general/CMakeLists.txt b/components/cxx/test_apps/general/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(COMPONENTS main)
 

diff --git a/components/cxx/test_apps/rtti/CMakeLists.txt b/components/cxx/test_apps/rtti/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(COMPONENTS main)
 

diff --git a/components/driver/test_apps/gpio/CMakeLists.txt b/components/driver/test_apps/gpio/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(gpio_test)

diff --git a/components/driver/test_apps/gptimer/CMakeLists.txt b/components/driver/test_apps/gptimer/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(gptimer_test)

diff --git a/components/driver/test_apps/legacy_pcnt_driver/CMakeLists.txt b/components/driver/test_apps/legacy_pcnt_driver/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(legacy_pcnt_driver_test)
diff --git a/components/driver/test_apps/legacy_rmt_driver/CMakeLists.txt b/components/driver/test_apps/legacy_rmt_driver/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(legacy_rmt_test)
diff --git a/components/driver/test_apps/legacy_rtc_temp_driver/CMakeLists.txt b/components/driver/test_apps/legacy_rtc_temp_driver/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(legacy_rtc_temp_driver_test)
diff --git a/components/driver/test_apps/legacy_timer_driver/CMakeLists.txt b/components/driver/test_apps/legacy_timer_driver/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(legacy_timer_driver_test)
diff --git a/components/driver/test_apps/pulse_cnt/CMakeLists.txt b/components/driver/test_apps/pulse_cnt/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(pcnt_test)

diff --git a/components/driver/test_apps/rmt/CMakeLists.txt b/components/driver/test_apps/rmt/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(rmt_test)

diff --git a/components/driver/test_apps/temperature_sensor/CMakeLists.txt b/components/driver/test_apps/temperature_sensor/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(test_temperature_sensor)
diff --git a/components/esp_eth/test_apps/CMakeLists.txt b/components/esp_eth/test_apps/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(esp_eth_test)

diff --git a/components/esp_event/host_test/esp_event_unit_test/CMakeLists.txt b/components/esp_event/host_test/esp_event_unit_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 set(COMPONENTS main)

diff --git a/components/esp_lcd/test_apps/i2c_lcd/CMakeLists.txt b/components/esp_lcd/test_apps/i2c_lcd/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(i2c_lcd_panel_test)
diff --git a/components/esp_lcd/test_apps/i80_lcd/CMakeLists.txt b/components/esp_lcd/test_apps/i80_lcd/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(i80_lcd_panel_test)
diff --git a/components/esp_lcd/test_apps/rgb_lcd/CMakeLists.txt b/components/esp_lcd/test_apps/rgb_lcd/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(rgb_lcd_panel_test)

diff --git a/components/esp_lcd/test_apps/spi_lcd/CMakeLists.txt b/components/esp_lcd/test_apps/spi_lcd/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(spi_lcd_panel_test)
diff --git a/components/esp_local_ctrl/proto/CMakeLists.txt b/components/esp_local_ctrl/proto/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(PROTO_COMPILER "protoc")
 set(PROTO_C_COMPILER "protoc-c")

diff --git a/components/esp_netif/test_apps/CMakeLists.txt b/components/esp_netif/test_apps/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(EXTRA_COMPONENT_DIRS "$ENV{IDF_PATH}/tools/unit-test-app/components")
 

diff --git a/components/esp_rom/host_test/rom_test/CMakeLists.txt b/components/esp_rom/host_test/rom_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 set(COMPONENTS main)

diff --git a/components/esp_system/test_apps/rtc_8md256/CMakeLists.txt b/components/esp_system/test_apps/rtc_8md256/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(rtc_8md256)
diff --git a/components/espcoredump/test_apps/CMakeLists.txt b/components/espcoredump/test_apps/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 # Here for reproducible builds, we use the CI compile options to make sure they're same.
 # Use -ffile-prefix-map to map the local path prefix to ci path prefix

diff --git a/components/esptool_py/run_serial_tool.cmake b/components/esptool_py/run_serial_tool.cmake
@@ -4,7 +4,7 @@
 #
 # It is recommended to NOT USE this CMake script if you have the option of
 # running the tool directly. This script exists only for use inside CMake builds.
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 if(NOT IDF_PATH)
     message(FATAL_ERROR "IDF_PATH not set.")

diff --git a/components/log/host_test/log_test/CMakeLists.txt b/components/log/host_test/log_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 set(COMPONENTS main)

diff --git a/components/lwip/test_afl_host/CMakeLists.txt b/components/lwip/test_afl_host/CMakeLists.txt
@@ -1,6 +1,6 @@
 # The following four lines of boilerplate have to be in your project's CMakeLists
 # in this exact order for cmake to work correctly
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 

diff --git a/components/mdns/host_test/CMakeLists.txt b/components/mdns/host_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 set(COMPONENTS main)

diff --git a/components/mdns/test_afl_fuzz_host/CMakeLists.txt b/components/mdns/test_afl_fuzz_host/CMakeLists.txt
@@ -1,6 +1,6 @@
 # The following four lines of boilerplate have to be in your project's CMakeLists
 # in this exact order for cmake to work correctly
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 

diff --git a/components/mqtt/host_test/CMakeLists.txt b/components/mqtt/host_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 set(COMPONENTS main)

diff --git a/components/newlib/test_apps/CMakeLists.txt b/components/newlib/test_apps/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(EXTRA_COMPONENT_DIRS "$ENV{IDF_PATH}/tools/unit-test-app/components")
 set(COMPONENTS main)

diff --git a/components/nvs_flash/host_test/nvs_page_test/CMakeLists.txt b/components/nvs_flash/host_test/nvs_page_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 

diff --git a/components/protocomm/proto/CMakeLists.txt b/components/protocomm/proto/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(PROTO_COMPILER "protoc")
 set(PROTO_C_COMPILER "protoc-c")

diff --git a/components/spi_flash/host_test/partition_api_test/CMakeLists.txt b/components/spi_flash/host_test/partition_api_test/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 set(COMPONENTS main)

diff --git a/components/ulp/cmake/CMakeLists.txt b/components/ulp/cmake/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 include(${IDF_PATH}/tools/cmake/utilities.cmake)
 project(${ULP_APP_NAME} ASM C)

diff --git a/components/wear_levelling/test_apps/CMakeLists.txt b/components/wear_levelling/test_apps/CMakeLists.txt
@@ -1,5 +1,5 @@
 # This is the project CMakeLists.txt file for the test subproject
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 # "Trim" the build. Include the minimal set of components, main, and anything it depends on.
 set(COMPONENTS main)

diff --git a/components/wifi_provisioning/proto/CMakeLists.txt b/components/wifi_provisioning/proto/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.16)
 
 set(PROTO_COMPILER "protoc")
 set(PROTO_C_COMPILER "protoc-c")

diff --git a/docs/en/api-guides/build-system.rst b/docs/en/api-guides/build-system.rst
@@ -200,7 +200,7 @@ Minimal Example CMakeLists
 
 Minimal project::
 
-      cmake_minimum_required(VERSION 3.5)
+      cmake_minimum_required(VERSION 3.16)
       include($ENV{IDF_PATH}/tools/cmake/project.cmake)
       project(myProject)
 
@@ -211,7 +211,7 @@ Mandatory Parts
 
 The inclusion of these three lines, in the order shown above, is necessary for every project:
 
-- ``cmake_minimum_required(VERSION 3.5)`` tells CMake the minimum version that is required to build the project. ESP-IDF is designed to work with CMake 3.5 or newer. This line must be the first line in the CMakeLists.txt file.
+- ``cmake_minimum_required(VERSION 3.16)`` tells CMake the minimum version that is required to build the project. ESP-IDF is designed to work with CMake 3.16 or newer. This line must be the first line in the CMakeLists.txt file.
 - ``include($ENV{IDF_PATH}/tools/cmake/project.cmake)`` pulls in the rest of the CMake functionality to configure the project, discover all the components, etc.
 - ``project(myProject)`` creates the project itself, and specifies the project name. The project name is used for the final binary output files of the app - ie ``myProject.elf``, ``myProject.bin``. Only one project can be defined per CMakeLists file.
 
@@ -255,7 +255,7 @@ For example, one of the default build specifications set is the compile option `
 it should be done after ``project()``::
 
 
-    cmake_minimum_required(VERSION 3.5)
+    cmake_minimum_required(VERSION 3.16)
     include($ENV{IDF_PATH}/tools/cmake/project.cmake)
     project(myProject)
 
@@ -664,7 +664,7 @@ Special components which contain no source files, only ``Kconfig.projbuild`` and
 Debugging CMake
 ===============
 
-For full details about CMake_ and CMake commands, see the `CMake v3.5 documentation`_.
+For full details about CMake_ and CMake commands, see the `CMake v3.16 documentation`_.
 
 Some tips for debugging the ESP-IDF CMake-based build system:
 
@@ -1066,7 +1066,7 @@ It is possible to do so by using the :ref:`build system APIs provided<cmake_buil
 
 .. code-block:: cmake
 
-  cmake_minimum_required(VERSION 3.5)
+  cmake_minimum_required(VERSION 3.16)
   project(my_custom_app C)
 
   # Include CMake file that provides ESP-IDF CMake build system APIs.
@@ -1483,23 +1483,23 @@ Flashing from make
 .. _cmake: https://cmake.org
 .. _ninja: https://ninja-build.org
 .. _esptool.py: https://github.com/espressif/esptool/#readme
-.. _CMake v3.5 documentation: https://cmake.org/cmake/help/v3.5/index.html
-.. _cmake command line documentation: https://cmake.org/cmake/help/v3.5/manual/cmake.1.html#options
-.. _cmake add_library: https://cmake.org/cmake/help/v3.5/command/add_library.html
-.. _cmake if: https://cmake.org/cmake/help/v3.5/command/if.html
-.. _cmake list: https://cmake.org/cmake/help/v3.5/command/list.html
-.. _cmake project: https://cmake.org/cmake/help/v3.5/command/project.html
-.. _cmake set: https://cmake.org/cmake/help/v3.5/command/set.html
-.. _cmake string: https://cmake.org/cmake/help/v3.5/command/string.html
+.. _CMake v3.16 documentation: https://cmake.org/cmake/help/v3.16/index.html
+.. _cmake command line documentation: https://cmake.org/cmake/help/v3.16/manual/cmake.1.html#options
+.. _cmake add_library: https://cmake.org/cmake/help/v3.16/command/add_library.html
+.. _cmake if: https://cmake.org/cmake/help/v3.16/command/if.html
+.. _cmake list: https://cmake.org/cmake/help/v3.16/command/list.html
+.. _cmake project: https://cmake.org/cmake/help/v3.16/command/project.html
+.. _cmake set: https://cmake.org/cmake/help/v3.16/command/set.html
+.. _cmake string: https://cmake.org/cmake/help/v3.16/command/string.html
 .. _cmake faq generated files: https://gitlab.kitware.com/cmake/community/-/wikis/FAQ#how-can-i-generate-a-source-file-during-the-build
-.. _ADDITIONAL_MAKE_CLEAN_FILES: https://cmake.org/cmake/help/v3.5/prop_dir/ADDITIONAL_MAKE_CLEAN_FILES.html
-.. _ExternalProject: https://cmake.org/cmake/help/v3.5/module/ExternalProject.html
-.. _cmake language variables: https://cmake.org/cmake/help/v3.5/manual/cmake-variables.7.html#variables-for-languages
-.. _set_source_files_properties: https://cmake.org/cmake/help/v3.5/command/set_source_files_properties.html
-.. _target_compile_options: https://cmake.org/cmake/help/v3.5/command/target_compile_options.html
-.. _target_link_libraries: https://cmake.org/cmake/help/v3.5/command/target_link_libraries.html#command:target_link_libraries
-.. _cmake_toolchain_file: https://cmake.org/cmake/help/v3.5/variable/CMAKE_TOOLCHAIN_FILE.html
-.. _LINK_INTERFACE_MULTIPLICITY: https://cmake.org/cmake/help/v3.5/prop_tgt/LINK_INTERFACE_MULTIPLICITY.html
+.. _ADDITIONAL_MAKE_CLEAN_FILES: https://cmake.org/cmake/help/v3.16/prop_dir/ADDITIONAL_MAKE_CLEAN_FILES.html
+.. _ExternalProject: https://cmake.org/cmake/help/v3.16/module/ExternalProject.html
+.. _cmake language variables: https://cmake.org/cmake/help/v3.16/manual/cmake-variables.7.html#variables-for-languages
+.. _set_source_files_properties: https://cmake.org/cmake/help/v3.16/command/set_source_files_properties.html
+.. _target_compile_options: https://cmake.org/cmake/help/v3.16/command/target_compile_options.html
+.. _target_link_libraries: https://cmake.org/cmake/help/v3.16/command/target_link_libraries.html#command:target_link_libraries
+.. _cmake_toolchain_file: https://cmake.org/cmake/help/v3.16/variable/CMAKE_TOOLCHAIN_FILE.html
+.. _LINK_INTERFACE_MULTIPLICITY: https://cmake.org/cmake/help/v3.16/prop_tgt/LINK_INTERFACE_MULTIPLICITY.html
 .. _quirc: https://github.com/dlbeer/quirc
 .. _pyenv: https://github.com/pyenv/pyenv#readme
 .. _virtualenv: https://virtualenv.pypa.io/en/stable/
diff --git a/docs/en/get-started/linux-macos-setup.rst b/docs/en/get-started/linux-macos-setup.rst
@@ -47,7 +47,7 @@ CentOS 7 is still supported but CentOS version 8 is recommended for a better use
     sudo pacman -S --needed gcc git make flex bison gperf python cmake ninja ccache dfu-util libusb
 
 .. note::
-    - CMake version 3.5 or newer is required for use with ESP-IDF. Older Linux distributions may require updating, enabling of a "backports" repository, or installing of a "cmake3" package rather than "cmake".
+    - CMake version 3.16 or newer is required for use with ESP-IDF. Run "tools/idf_tools.py install cmake" to install a suitable version if your OS versions doesn't have one.
     - If you do not see your Linux distribution in the above list then please check its documentation to find out which command to use for package installation.
 
 For macOS Users

diff --git a/docs/en/migration-guides/build-system.rst b/docs/en/migration-guides/build-system.rst
@@ -70,3 +70,10 @@ For example::
 instead of::
 
     target_link_libraries(${project_elf} "-Wl,--wrap=esp_panic_handler")
+
+Update CMake version
+--------------------
+
+In ESP-IDF v5.0 minimal cmake version was increased to 3.16 and versions lower than 3.16 are not supported anymore.  Run "tools/idf_tools.py install cmake" to install a suitable version if your OS versions doesn't have one.
+
+This affects ESP-IDF users who use system-provided CMake and custom CMake project users.