Typo noticed by Duncan.

llvm-svn: 99918
diff --git a/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp b/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
index 8add3f5..3ba783b 100644
--- a/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
+++ b/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
@@ -265,7 +265,7 @@
   if (RF == RawFunctions->end()) {
     RawFn = (RawFunc)(intptr_t)
       sys::DynamicLibrary::SearchForAddressOfSymbol(F->getName());
-    if (!RawnFn)
+    if (!RawFn)
 	RawFn = (RawFunc)(intptr_t)getPointerToGlobalIfAvailable(F);
     if (RawFn != 0)
       RawFunctions->insert(std::make_pair(F, RawFn));  // Cache for later