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-rw-r--r--kernel/yosys.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/yosys.h b/kernel/yosys.h
index bfadb5ff..87c99d1f 100644
--- a/kernel/yosys.h
+++ b/kernel/yosys.h
@@ -47,6 +47,7 @@
#include <sstream>
#include <fstream>
+#include <istream>
#include <ostream>
#include <iostream>