cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations langinfo/ABALTMON_3.c -o langinfo/ABALTMON_3 -D_POSIX_C_SOURCE=202405L  -lm -lpthread  -liconv
langinfo/ABALTMON_3.c:2:17: error: use of undeclared identifier 'ABALTMON_3'
    2 | int const foo = ABALTMON_3;
      |                 ^
1 error generated.