cc -pthread -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations math/fmaf.c -o math/fmaf -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv math/fmaf.c:5:37: error: ‘fmaf’ undeclared here (not in a function); did you mean ‘fmaxf’? 5 | float (*foo)(float, float, float) = fmaf; | ^~~~ | fmaxf