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-rw-r--r--Source/kwsys/hash_map.hxx.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/kwsys/hash_map.hxx.in b/Source/kwsys/hash_map.hxx.in
index 3f9174f3b..8c9b81e1b 100644
--- a/Source/kwsys/hash_map.hxx.in
+++ b/Source/kwsys/hash_map.hxx.in
@@ -49,7 +49,7 @@ namespace @KWSYS_NAMESPACE@ {
// select1st is an extension: it is not part of the standard.
template <class T1, class T2>
-struct hash_select1st : public std::unary_function<std::pair<T1, T2>, T1>
+struct hash_select1st
{
const T1& operator()(const std::pair<T1, T2>& __x) const
{