cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations math/llrintl.c -o math/llrintl -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
math/llrintl.c:5:33: error: ‘llrintl’ undeclared here (not in a function); did you mean ‘llrintf’?
    5 | long long (*foo)(long double) = llrintl;
      |                                 ^~~~~~~
      |                                 llrintf