rndtonl

[Laeeth Isharc via Digitalmars-d-learn]

what am I doing wrong here?

import std.math;
import std.stdio;


void main()
{
        real fac;
        fac=1.2;
        fac=rndtonl(fac);
}

[root@fedorabox util]# dmd bug.d
bug.o: In function `_Dmain':
bug.d:(.text._Dmain+0x3b): undefined reference to `rndtonl'
collect2: error: ld returned 1 exit status
--- errorlevel 1