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-rw-r--r--ice40/pack.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/ice40/pack.cc b/ice40/pack.cc
index 2484aa53..d1be4a29 100644
--- a/ice40/pack.cc
+++ b/ice40/pack.cc
@@ -20,6 +20,7 @@
#include "pack.h"
#include <algorithm>
+#include <iterator>
#include <unordered_set>
#include "cells.h"
#include "design_utils.h"