cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations dirent/DT_SHM.c -o dirent/DT_SHM -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
dirent/DT_SHM.c:3:2: error: #error "DT_SHM is not defined"
    3 | #error "DT_SHM is not defined"
      |  ^~~~~