cc -O2 -pipe -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations limits/POSIX_REC_MAX_XFER_SIZE.c -o limits/POSIX_REC_MAX_XFER_SIZE -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lstdthreads -lcrypt
limits/POSIX_REC_MAX_XFER_SIZE.c:5:2: error: "POSIX_REC_MAX_XFER_SIZE is not defined"
    5 | #error "POSIX_REC_MAX_XFER_SIZE is not defined"
      |  ^
1 error generated.