On 17 Oct 2013, at 13:02, Joseph Rushton Wakeling wrote: > undefined reference to > `_D3std8typecons86__T10RefCountedTS3std4file15DirIteratorImplVE3std8typecons24RefCountedAutoInitialize0Z10RefCounted10__postblitMFZv' This looks a lot like https://github.com/ldc-developers/ldc/issues/454. Which LDC version did you use? Cheers, David