From 2479ea685bb8279fc269659d7d88998a76892934 Mon Sep 17 00:00:00 2001
From: rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 18 Nov 2015 14:31:10 +0000
Subject: [PATCH] PR 68406: Avoid problem with older host compilers

Older compilers require the Key typedef to be expanded for the traversal
function templates.  This patch uses the same approach as we did for
hash_map.

Tested on x86_64-linux-gnu.

gcc/
	PR bootstrap/68406
	* hash-set.h (hash_set::traverse): Expand Key typedef.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230549 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog  | 5 +++++
 gcc/hash-set.h | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e3c11fe..620a310 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-11-18  Richard Sandiford  <richard.sandiford@arm.com>
+
+	PR bootstrap/68406
+	* hash-set.h (hash_set::traverse): Expand Key typedef.
+
 2015-11-18  Martin Liska  <mliska@suse.cz>
 
 	* config/arm/arm.c (arm_valid_target_attribute_p): Finalize
diff --git a/gcc/hash-set.h b/gcc/hash-set.h
index 679d2b6..8a7c9a0 100644
--- a/gcc/hash-set.h
+++ b/gcc/hash-set.h
@@ -68,7 +68,7 @@ public:
   /* Call the call back on each pair of key and value with the passed in
      arg.  */
 
-  template<typename Arg, bool (*f)(const Key &, Arg)>
+  template<typename Arg, bool (*f)(const typename Traits::value_type &, Arg)>
   void traverse (Arg a) const
     {
       for (typename hash_table<Traits>::iterator iter = m_table.begin ();
-- 
2.7.4