In std.compiler there is this code:
/// Which vendor produced this compiler.
version(StdDdoc) Vendor vendor;
else version(DigitalMars) Vendor vendor = Vendor.digitalMars;
else version(GNU) Vendor vendor = Vendor.gnu;
else version(LDC) Vendor vendor = Vendor.llvm;
else version(D_NET) Vendor vendor = Vendor.dotNET;
else version(SDC) Vendor vendor = Vendor.sdc;
else Vendor vendor = Vendor.unknown;What is the situation in which the identifier StdDoc is set?
