llvm.lib.Linker.LinkModules.cpp.patch

--- lib/Linker/LinkModules.cpp	(revision 152147)
+++ lib/Linker/LinkModules.cpp	(working copy)
@@ -759,9 +759,14 @@
       // symbol...
       if (DF->isDeclaration() || DF->isWeakForLinker()) {
         // But only if aliasee is function too...
-        if (!isa<Function>(DAliasee))
+        GlobalValue *DAliaseeResolved = DAliasee;
+        if (GlobalAlias *DA = dyn_cast<GlobalAlias>(DAliasee)) {
+          DAliaseeResolved = const_cast<GlobalValue*>(DA->resolveAliasedGlobal(false));
+        }
+        if (!isa<Function>(DAliaseeResolved)) {
           return Error(Err, "Function-Alias Collision on '" + SGA->getName() +
                        "': aliasee is not function");
+        }
 
         NewGA = new GlobalAlias(SGA->getType(), SGA->getLinkage(),
                                 SGA->getName(), DAliaseeConst, Dest);