diff --git a/llvm/tools/llvm-ld/Linker.cpp b/llvm/tools/llvm-ld/Linker.cpp
index 4af152b..9d19995 100644
--- a/llvm/tools/llvm-ld/Linker.cpp
+++ b/llvm/tools/llvm-ld/Linker.cpp
@@ -86,6 +86,7 @@
   std::set<std::string> DefinedSymbols;
   UndefinedSymbols.clear();   // Start out empty
   
+  // Add in all the external functions
   for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
     if (I->hasName()) {
       if (I->isExternal())
@@ -93,6 +94,8 @@
       else if (!I->hasInternalLinkage())
         DefinedSymbols.insert(I->getName());
     }
+
+  // Add in all the external globals
   for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
     if (I->hasName()) {
       if (I->isExternal())