stepping over fflush

[lzace817]

The extension is freezing when I step over a fflush.

example:

#include <stdio.h>

int main(void)
{
    printf("hello\n");
    fflush(stdout); // works fine
    printf("world");
    fflush(stdout); // frezes
    return 0;
}

compile command:

gcc -Wall -Wextra -ggdb -o build/fflush-test fflush-test.c

It works fine on gdb alone.

Expected behaviour

It would step to the line return 0 and not freeze.