diff -up ./absl/synchronization/internal/graphcycles.cc.gcc11 ./absl/synchronization/internal/graphcycles.cc

--- ./absl/synchronization/internal/graphcycles.cc.gcc11	2020-12-19 11:39:31.244272590 -0500

+++ ./absl/synchronization/internal/graphcycles.cc	2020-12-19 11:39:53.069335816 -0500

@@ -37,6 +37,7 @@

 #include <algorithm>

 #include <array>

+#include <limits>

 #include "absl/base/internal/hide_ptr.h"

 #include "absl/base/internal/raw_logging.h"

 #include "absl/base/internal/spinlock.h"