cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations math/nearbyintf.c -o math/nearbyintf -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
math/nearbyintf.c:5:23: error: ‘nearbyintf’ undeclared here (not in a function)
    5 | float (*foo)(float) = nearbyintf;
      |                       ^~~~~~~~~~