Fix the build on my old and busted version of OS X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29266 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/ExecutionEngine/JIT/JIT.cpp b/lib/ExecutionEngine/JIT/JIT.cpp
index 5abeb5662ab5d319196f503eda4f43f1a900f567..f241240af945220061dde8357a2abdabb35ab45a 100644 (file)
--- a/lib/ExecutionEngine/JIT/JIT.cpp
+++ b/lib/ExecutionEngine/JIT/JIT.cpp
@@ -30,10 +30,13 @@
 #include <iostream>
 using namespace llvm;
 
-#ifdef __APPLE__
+#ifdef __APPLE__ 
+#include <AvailabilityMacros.h>
+#if MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_4
 // __dso_handle is resolved by Mac OS X dynamic linker.
 extern void *__dso_handle __attribute__ ((__visibility__ ("hidden")));
 #endif
+#endif
 
 static struct RegisterJIT {
   RegisterJIT() { JIT::Register(); }
@@ -295,9 +298,11 @@ void *JIT::getOrEmitGlobalVariable(const GlobalVariable *GV) {
   // If the global is external, just remember the address.
   if (GV->isExternal()) {
 #ifdef __APPLE__
+#if MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_4
     // __dso_handle is resolved by the Mac OS X dynamic linker.
     if (GV->getName() == "__dso_handle")
       return (void*)&__dso_handle;
+#endif
 #endif
     Ptr = sys::DynamicLibrary::SearchForAddressOfSymbol(GV->getName().c_str());
     if (Ptr == 0) {