diff --git a/gen/dibuilder.cpp b/gen/dibuilder.cpp
index 46c331de..48f327ae 100644
--- a/gen/dibuilder.cpp
+++ b/gen/dibuilder.cpp
@@ -290,7 +290,7 @@ llvm::DIType ldc::DIBuilder::CreateCompositeType(Type *type)
 
     // if we don't know the aggregate's size, we don't know enough about it
     // to provide debug info. probably a forward-declared struct?
-    if (sd->sizeok == 0)
+    if (sd->sizeok == SIZEOKnone)
 #if LDC_LLVM_VER >= 304
         return DBuilder.createUnspecifiedType(sd->toChars());
 #else
diff --git a/gen/module.cpp b/gen/module.cpp
index 16278dd1..ecf34baf 100644
--- a/gen/module.cpp
+++ b/gen/module.cpp
@@ -702,7 +702,7 @@ void Module::genmoduleinfo()
             Logger::println("skipping interface '%s' in moduleinfo", cd->toPrettyChars());
             continue;
         }
-        else if (cd->sizeok != 1)
+        else if (cd->sizeok != SIZEOKdone)
         {
             Logger::println("skipping opaque class declaration '%s' in moduleinfo", cd->toPrettyChars());
             continue;
diff --git a/gen/structs.cpp b/gen/structs.cpp
index 173f9747..0f82c84a 100644
--- a/gen/structs.cpp
+++ b/gen/structs.cpp
@@ -41,7 +41,7 @@ void DtoResolveStruct(StructDeclaration* sd)
     DtoType(sd->type);
 
     // if it's a forward declaration, all bets are off. The type should be enough
-    if (sd->sizeok != 1)
+    if (sd->sizeok != SIZEOKdone)
         return;
 
     // create the IrAggr
diff --git a/gen/typinf.cpp b/gen/typinf.cpp
index 60c6e895..cbe7e00d 100644
--- a/gen/typinf.cpp
+++ b/gen/typinf.cpp
@@ -598,7 +598,7 @@ void TypeInfoStructDeclaration::llvmDefine()
     StructDeclaration *sd = tc->sym;
 
     // can't emit typeinfo for forward declarations
-    if (sd->sizeok != 1)
+    if (sd->sizeok != SIZEOKdone)
     {
         sd->error("cannot emit TypeInfo for forward declaration");
         fatal();
diff --git a/ir/irtypestruct.cpp b/ir/irtypestruct.cpp
index d9fa3937..44b805fa 100644
--- a/ir/irtypestruct.cpp
+++ b/ir/irtypestruct.cpp
@@ -88,7 +88,7 @@ IrTypeStruct* IrTypeStruct::get(StructDeclaration* sd)
     LOG_SCOPE;
 
     // if it's a forward declaration, all bets are off, stick with the opaque
-    if (sd->sizeok != 1)
+    if (sd->sizeok != SIZEOKdone)
         return t;
 
     // TODO:: Somehow merge this with IrAggr::createInitializerConstant, or
diff --git a/runtime/druntime b/runtime/druntime
index d484e5bd..70ad6560 160000
--- a/runtime/druntime
+++ b/runtime/druntime
@@ -1 +1 @@
-Subproject commit d484e5bdf8acaa619d284c2348c4bcc6a472db4f
+Subproject commit 70ad65608ef0211beb64121f8e844735a92b18fb