zephyr_cc_option_ifdef(CONFIG_LTO -flto) zephyr_compile_options( -fno-freestanding -Wno-undef -Wno-implicit-function-declaration -m32 -MMD -MP ${ARCH_FLAG} -include ${ZEPHYR_BASE}/arch/posix/include/posix_cheats.h ) zephyr_compile_options_ifdef(CONFIG_COVERAGE -fprofile-arcs -ftest-coverage ) zephyr_link_libraries_ifdef(CONFIG_COVERAGE -lgcov ) zephyr_compile_definitions(_POSIX_C_SOURCE=200809) zephyr_ld_options( -ldl -pthread -m32 ) # About the -include directive: The reason to do it this way, is because in this # manner it is transparent to the application. Otherwise posix_cheats.h needs to # be included in all the applications' files which define main( ), and in any # app file which uses the pthreads like API provided by Zephyr # ( include/posix/pthread.h / kernel/pthread.c ) [And any future API added to # Zephyr which will clash with the native POSIX API] . It would also need to # be included in a few zephyr kernel files. add_subdirectory(soc) add_subdirectory(core)