|  | # Copyright (c) 2025 IAR Systems AB | 
|  | # | 
|  | # SPDX-License-Identifier: Apache-2.0 | 
|  |  | 
|  | if(NOT CMAKE_DTS_PREPROCESSOR) | 
|  | find_program(CMAKE_DTS_PREPROCESSOR arm-zephyr-eabi-gcc PATHS ${ZEPHYR_SDK_INSTALL_DIR}/arm-zephyr-eabi/bin NO_DEFAULT_PATH) | 
|  | endif() | 
|  |  | 
|  | if(NOT CMAKE_DTS_PREPROCESSOR) | 
|  | message(FATAL_ERROR "Zephyr was unable to find \`arm-zephyr-eabi-gcc\` for DTS preprocessing") | 
|  | endif() | 
|  |  | 
|  | if(CMAKE_C_COMPILER STREQUAL CMAKE_C_COMPILER-NOTFOUND) | 
|  | message(FATAL_ERROR "Zephyr was unable to find the IAR toolchain. Was the environment misconfigured?") | 
|  | endif() |