Project Explorer does not retains "unkown" type toolchain informations for "unkown" architecture

Hello,

I am trying to create a kit for Espressif ESP8266.

I have downloaded the toolchain (here, and added a new GCC/C compiler.

As you can see, the ABI is wrong. So I set it manually:

Then click on apply and OK.

If I go back to the compiler settings, I see that my settings have not been applied:

This result in build issues since invalid parameters are given in arguments like -m64

/home/thomas/Qt/Tools/QtCreator/share/qtcreator/qbs/share/qbs/modules/cpp/gcc.js:1300: warning: Error: Process '/home/thomas/xtensa-esp32-elf/bin/xtensa-lx106-elf-gcc' finished with exit code 1. The standard error output was:
xtensa-lx106-elf-gcc: error: unrecognized command line option '-m64'

I was wondering if that could be fixed in next version.

Also, do you think it could be possible and not so much time consumming for me to create an Espressif plugin (like QNX or Android) for QtCreator ?

Thank you by advance.