https://issues.dlang.org/show_bug.cgi?id=17666
--- Comment #8 from Sebastiaan Koppe <m...@skoppe.eu> --- Finally had some time to take a look. Pretty awesome. Thanks. But why in core.sys.linux.netinet.in_ is some stuff behind static if(__USE_MISC)? As far as I can tell that conditional evaluates to false, and there is a structure in there - ip_mreq - that I need. Also, the static if(__USE_MISC) at https://github.com/dlang/druntime/blob/master/src/core/sys/linux/netinet/in_.d#L168 is already inside a static if (__USE_MISC) conditional block. --