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-rw-r--r--utils/hash.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/utils/hash.h b/utils/hash.h
index e56fca06..e1426ffb 100644
--- a/utils/hash.h
+++ b/utils/hash.h
@@ -20,7 +20,7 @@
# define HASH_MAP_RESERVED(h,empty,deleted) do { (h).set_empty_key(empty); (h).set_deleted_key(deleted); } while(0)
# define HASH_MAP_EMPTY(h,empty) do { (h).set_empty_key(empty); } while(0)
#else
-#ifdef HAVE_CXX11
+#ifndef HAVE_OLD_CPP
# include <unordered_map>
# include <unordered_set>
#else