cc -O2 -pipe -pthread -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations float/FLT_TRUE_MIN.c -o float/FLT_TRUE_MIN -D_POSIX_C_SOURCE=202405L -lm -lpthread float/FLT_TRUE_MIN.c:3:2: error: "FLT_TRUE_MIN is not defined" #error "FLT_TRUE_MIN is not defined" ^ 1 error generated.