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From: Ren Wang <renwang101@gmail.com>
Date: Sun, 5 Jun 2022 06:13:50 -0400
Message-ID: <CA+JCqFYCePkAWFyUv5gp4rZbMUL8j71hBxY6=-4ju2DduhpCGA@mail.gmail.com>
Subject: undefined reference
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I am working on a project which calls _disable and _enable interrupt built
in functions in the Windows environment. I can build the code with /Oi with
Microsoft Visual Studio, but failed with gcc compiler with link errors:

undefined reference to _disable, _enable.

I have code included, very simple. I am not sure what the problem is,
please advise.

Regards,

Ren
---------------------------
#include <stdio.h>
#include <stdlib.h>
#include <intrin.h>
int main()
{
    _disable();
    printf("Hello world!\n");
    _enable();
    return 0;
}