gcc -pthread   -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations complex/CMPLXF.c -o complex/CMPLXF -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lxnet  -lsocket -latomic
complex/CMPLXF.c:3:2: error: #error "CMPLXF is not defined"
    3 | #error "CMPLXF is not defined"
      |  ^~~~~