cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations math/frexpl.c -o math/frexpl -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
math/frexpl.c:5:42: error: ‘frexpl’ undeclared here (not in a function); did you mean ‘frexpf’?
    5 | long double (*foo)(long double, int *) = frexpl;
      |                                          ^~~~~~
      |                                          frexpf