generate_ech.cc: include needed headers

Adam Langley · Boringssl LUCI CQ · commit 0768d42c283d · 2021-08-02T17:25:27.000Z
Change-Id: I04c8bb68801aeb0938e5b038b98811ca4ffe50f0 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/48685 Commit-Queue: Adam Langley <agl@google.com> Commit-Queue: David Benjamin <davidben@google.com> Reviewed-by: David Benjamin <davidben@google.com>
diff --git a/tool/generate_ech.cc b/tool/generate_ech.cc
@@ -14,6 +14,7 @@
 
 #include <stdio.h>
 
+#include <limits>
 #include <vector>
 
 #include <openssl/bytestring.h>
