On Fri, Jun 5, 2009 at 11:47 AM, Andrew Haley<aph@xxxxxxxxxx> wrote:
> It'll call out to a library function if there isn't a builtin instruction.
> If you want to do a configure check, try running or linking the program.
If I compile with -march=i386, and do ./a.out, it runs without errors.
Here's my .cpp file:
int main()
{
int x;
__sync_add_and_fetch(&x, 1);
return 0;
}
Since I have a main, if __sync_add_and_fetch were undefined, wouldn't
it already be trying to link and give an error?
