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-rw-r--r--lib/Frontend/RewriteObjC.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Frontend/RewriteObjC.cpp b/lib/Frontend/RewriteObjC.cpp
index a9bf3c04fc..a744ff3742 100644
--- a/lib/Frontend/RewriteObjC.cpp
+++ b/lib/Frontend/RewriteObjC.cpp
@@ -555,7 +555,7 @@ void RewriteObjC::Initialize(ASTContext &context) {
Preamble += " void *FuncPtr;\n";
Preamble += "};\n";
Preamble += "// Runtime copy/destroy helper functions (from Block_private.h)\n";
- Preamble += "#ifdef CF_EXPORT_CONSTANT_STRING\n";
+ Preamble += "#ifdef __OBJC_EXPORT_BLOCKS\n";
Preamble += "extern \"C\" __declspec(dllexport) void _Block_object_assign(void *, const void *, const int);\n";
Preamble += "extern \"C\" __declspec(dllexport) void _Block_object_dispose(const void *, const int);\n";
Preamble += "extern \"C\" __declspec(dllexport) void *_NSConcreteGlobalBlock[32];\n";