Properly extern this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18664 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/AliasAnalysis.cpp b/lib/Analysis/AliasAnalysis.cpp
index 0e3f159..a90d80a 100644
--- a/lib/Analysis/AliasAnalysis.cpp
+++ b/lib/Analysis/AliasAnalysis.cpp
@@ -188,5 +188,7 @@
 // the risk of AliasAnalysis being used, but the default implementation not
 // being linked into the tool that uses it.
 //
-extern void llvm::BasicAAStub();
+namespace llvm {
+  extern void BasicAAStub();
+}
 static IncludeFile INCLUDE_BASICAA_CPP((void*)&BasicAAStub);