1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/yosys.h b/kernel/yosys.h
index 119e7e8a..d9db57c5 100644
--- a/kernel/yosys.h
+++ b/kernel/yosys.h
@@ -61,8 +61,15 @@
 
 YOSYS_NAMESPACE_BEGIN
 
+namespace RTLIL {
+	struct SigSpec;
+	struct Wire;
+	struct Cell;
+}
+
 std::string stringf(const char *fmt, ...);
-#define SIZE(__obj) int(__obj.size())
+template<typename T> int SIZE(const T &obj) { return obj.size(); }
+int SIZE(RTLIL::Wire *wire);
 
 YOSYS_NAMESPACE_END