From 3ad8dcfd55a4d107b2ffabe4d09bf081a32c025c Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Tue, 17 Nov 2009 22:02:21 +0000
Subject: [PATCH] More cases for weak_import objective-c2 classes. (still radar
 6815425).

llvm-svn: 89152
---
 clang/lib/CodeGen/CGObjCMac.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clang/lib/CodeGen/CGObjCMac.cpp b/clang/lib/CodeGen/CGObjCMac.cpp
index a1dd540de84b..2a89620ce9b5 100644
--- a/clang/lib/CodeGen/CGObjCMac.cpp
+++ b/clang/lib/CodeGen/CGObjCMac.cpp
@@ -4551,6 +4551,9 @@ void CGObjCNonFragileABIMac::GenerateCategory(const ObjCCategoryImplDecl *OCD) {
   Values[0] = GetClassName(OCD->getIdentifier());
   // meta-class entry symbol
   llvm::GlobalVariable *ClassGV = GetClassGlobal(ExtClassName);
+  if (Interface->hasAttr<WeakImportAttr>())
+    ClassGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage);
+  
   Values[1] = ClassGV;
   std::vector<llvm::Constant*> Methods;
   std::string MethodListName(Prefix);