Sample project with RTL module library not working

Here are the source files I am using. I am trying to model the basic rtl library tutorial the best I can (which compiles fine in my environment). I'm sure its some easy syntax error that none of the compilers or packagers is catching.

I cannot upload the .cpp and .h files because this site rejects them. Here is the source

expHBU.h

#include <stdint.h>
#include "HLS/math.h"
uint8_t expHBU(uint8_t input);

expHBU.cpp

#include "expHBU.h"

uint8_t expHBU(uint8_t input){
    return (uint8_t)exp(input);
}

component_testbench.cpp

#include "HLS/hls.h"
#include "HLS/stdio.h"
#include "HLS/math.h"
#include "expHBU.h"


component uint8_t executeexp(uint8_t exponent)
{
    return expHBU(exponent);
}
component uint8_t executeexp_basic(uint8_t exponent)
{
    return exp(exponent);
}

int main()
{   
    uint8_t exponent = 3;
    uint8_t result = executeexp(exponent);
    printf("result %d \n", result);
    return 0;
}

Reminder: the x86 simulation works, but the FPGA compile does NOT

Thanks,

messn036