cc -O2 -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations langinfo/ALTMON_12.c -o langinfo/ALTMON_12 -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lintl -lcrypt
langinfo/ALTMON_12.c:2:17: error: 'ALTMON_12' undeclared here (not in a function); did you mean 'ABMON_12'?
    2 | int const foo = ALTMON_12;
      |                 ^~~~~~~~~
      |                 ABMON_12