如何在Mac上使用英特尔的内存保护扩展(MPX)编译程序?

I am trying to test out Intel's Memory Protection Extensions (MPX) on my Macbook Pro by mirroring this tutorial for Linux. My processor is an Intel Core i5-6267U and it does have the ability to use MPX as verified by running sysctl machdep.cpu | grep MPX. However, when I try to compile the following test program:

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#define noinline __attribute__((noinline))

char dog[] = "dog";
char password[] = "secr3t";

noinline
char dog_letter(int nr)
{
        return dog[nr];
}

int main(int argc, char **argv)
{
        int max = sizeof(dog);
        int i;

        if (argc >= 2)
                max = atoi(argv[1]);

        for (i = 0; i < max; i++)
                printf("dog[%d]: '%c'\n", i, dog_letter(i));

        return 0;
}

使用以下命令:

/usr/local/bin/gcc-8 -o mpx_test -fcheck-pointer-bounds -mmpx mpx_test.c

我收到以下错误字符串:

/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:26:10: error: unexpected token in argument list
        bnd jle L2
                ^
/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:37:11: error: unexpected token in argument list
        bnd call        _atoi
                        ^
/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:41:10: error: unexpected token in argument list
        bnd jmp L3
                ^
/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:45:11: error: unexpected token in argument list
        bnd call        _dog_letter
                        ^
/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:57:9: error: unexpected token in argument list
        bnd jl  L4
                ^
/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:61:2: error: invalid instruction mnemonic 'bnd'
        bnd ret
        ^~~
/var/folders/v0/g_jfwt1j0kj1cp6vjn818jjh0000gn/T//cc5F0fho.s:88:2: error: invalid instruction mnemonic 'bnd'
        bnd ret
        ^~~

If I compile with the -S flag, I can see that the assembly GCC generates does have the MPX-specific instructions (bnd...). What else do I need to do to compile the program with MPX protections?