Cmake picks wrong compiler

[LubomirBogdanov]

Hello everyone,
I've been following this guide:

https://www.bluerange.io/docs/fruitymesh/Quick-Start.html

and I cannot get through the following problem. When I try to build a project I execute the following commands:

cmake "../../" -DBUILD_FEATURESETS=ON -DGCC_PATH="/home/user/fruity_mesh/gcc-arm-none-eabi-4_9-2015q3" -G "Unix Makefiles"

cmake --build . --target github_dev_nrf52

However the build fails with -Werror. So I edit the CMakeLists by commenting out:

# target_compile_options(${FEATURE_SET} PRIVATE $<$<COMPILE_LANGUAGE:CXX>:-Werror>)

but then I get the following error:

[ 0%] Linking CXX executable github_dev_nrf52.out
/home/user/fruitymesh/sdk/sdk14/components/libraries/hardfault/nrf52/handler/hardfault_handler_gcc.c:45:13: warning: type of 'HardFault_c_handler' does not match original declaration [-Wlto-type-mismatch]
45 | extern void HardFault_c_handler(uint32_t );
| ^
/home/user/fruitymesh/src/hal/nrf/FruityHalNrf.cpp:2123:32: note: 'HardFault_c_handler' was previously declared here
2123 | attribute((used)) void HardFault_c_handler(stacked_regs_t stack)
| ^
/home/user/fruitymesh/src/hal/nrf/FruityHalNrf.cpp:2123:32: note: code may be misoptimized unless '-fno-strict-aliasing' is used
/home/user/programs/gcc-arm-none-eabi-10.3-2021.07/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld:/home/user/fruitymesh/linker/nrf5x_common.ld:156 invalid assignment to location counter
collect2: error: ld returned 1 exit status
make[3]: *** [CMakeFiles/github_dev_nrf52.dir/build.make:1096: github_dev_nrf52.out] Error 1
make[2]: *** [CMakeFiles/Makefile2:718: CMakeFiles/github_dev_nrf52.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:725: CMakeFiles/github_dev_nrf52.dir/rule] Error 2
make: *** [Makefile:197: github_dev_nrf52] Error

Notice how Cmake uses the wrong toolchain that I have installed in a separate directory.

Does anyone know how to fix this?

Regards,
L. B.