On 01/14/2017 09:10 AM, Basile B. wrote: > Forget this, I've realized a bit late that it's already reported: > https://issues.dlang.org/show_bug.cgi?id=17072 The cause is that we build druntime on Windows with -dip25. https://issues.dlang.org/show_bug.cgi?id=17072#c1