xtensa-esp32s2-elf-gcc: error: unrecognized command line option '-Wdocumentation'

Hi!

I have the following CMakeLists.txt

cmake_minimum_required(VERSION 3.16.0)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(esp32s2-ulp-test)

and this platformio.ini

[env:default]
platform = https://github.com/platformio/platform-espressif32.git
board = esp32doit-devkit-v1
framework = espidf
board_build.mcu = esp32s2

Unfortunately pio run gives me:

Compiling .pio/build/default/mbedtls/mbedtls/library/aesni.o
xtensa-esp32s2-elf-gcc: error: unrecognized command line option '-Wdocumentation'

I tried to remove these errors by not compiling mbedtls, but this doesn’t seem possible (it’s just used too much…)

I was mix and matching cmake configurations with another project, that includes the arduino platform (which works for esp32s2), unfortunately I’m neither fluent nor good in the IDF to spot the error here.

I’ve also tried

cmake_minimum_required(VERSION 3.16.0)

set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_C_COMPILER_WORKS 1)
set(CMAKE_CXX_COMPILER_WORKS 1)

include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(esp32s2-ulp-test  C CXX)

SET(CMAKE_C_COMPILER "$ENV{HOME}/.platformio/packages/toolchain-xtensa32s2/bin/xtensa-esp32s2-elf-gcc")
SET(CMAKE_CXX_COMPILER "$ENV{HOME}/.platformio/packages/toolchain-xtensa32s2/bin/xtensa-esp32s2-elf-g++")
SET(CMAKE_CXX_FLAGS "-mlongcalls -std=gnu++11 -fexceptions -fno-rtti -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-sign-compare -ggdb -O2 -fstack-protector -MMD")
SET(CMAKE_C_FLAGS "-mlongcalls -std=gnu99 -Wno-old-style-declaration -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-sign-compare -ggdb -O2 -fstack-protector -MMD")

But it seems I cannot remove the “-Wdocumentation” to my knowledge.

[valeros]

Only the ESP-IDF integration is affected, all other frameworks can be used with CLion.

[markus-seidl]

Thanks for the prompt answer! I’ve came from the Arduino Expressif PlatfomIO platform, which didn’t have any problems (or maybe I was just lucky).