[driver] Emit an error when trying to use ARC on macosx earlier than 10.6
rdar://10459258
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151706 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 14c87d8..e125ab7 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1019,6 +1019,10 @@
return !isTargetIPhoneOS();
}
+bool Darwin::SupportsObjCARC() const {
+ return isTargetIPhoneOS() || !isMacosxVersionLT(10, 6);
+}
+
std::string
Darwin_Generic_GCC::ComputeEffectiveClangTriple(const ArgList &Args,
types::ID InputType) const {