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-rw-r--r--ext/ffi_c/Function.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/ffi_c/Function.h b/ext/ffi_c/Function.h
index 406b4d8..89b22ec 100644
--- a/ext/ffi_c/Function.h
+++ b/ext/ffi_c/Function.h
@@ -68,6 +68,7 @@ struct FunctionType_ {
bool hasStruct;
};
+extern const rb_data_type_t rbffi_fntype_data_type;
extern VALUE rbffi_FunctionTypeClass, rbffi_FunctionClass;
void rbffi_Function_Init(VALUE moduleFFI);