diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index a661dd4..74a3c86 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -362,12 +362,13 @@
       // External variable reference, try to use dlsym to get a pointer to it in
       // the LLI image.
 #if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
+      // RTLD_SELF is already defined and it's not zero
+#else
+      // Linux/x86 wants to use a 0, other systems may differ
+#define RTLD_SELF 0
+#endif
       if (void *SymAddr = dlsym(RTLD_SELF, I->getName().c_str()))
         GlobalAddress[I] = SymAddr;
-#else
-      if (void *SymAddr = dlsym(0, I->getName().c_str()))
-        GlobalAddress[I] = SymAddr;      
-#endif
       else {
         std::cerr << "Could not resolve external global address: "
                   << I->getName() << "\n";