libstdc++: Make atomic<T*>::wait() const [PR102994]

[Thomas Rodgers <trodgers@redhat.com>]

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From 360c094a0725bb0cc444115c0377db10e5e9ae1f Mon Sep 17 00:00:00 2001
From: Thomas Rodgers <rodgert@twrodgers.com>
Date: Fri, 5 Nov 2021 14:30:24 -0700
Subject: [PATCH] libstdc++: Make atomic<T*>::wait() const [PR102994]

This was an oversight in the original commit adding wait/notify
to atomic<T>.

libstdc++-v3/ChangeLog:

	PR libstdc++/102994
	* include/bits/atomic_base.h (__atomic_base<_PTp*>::wait())
	add const qualifier.
---
 libstdc++-v3/include/bits/atomic_base.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/include/bits/atomic_base.h b/libstdc++-v3/include/bits/atomic_base.h
index 9e18aadadaf..a104adc1a10 100644
--- a/libstdc++-v3/include/bits/atomic_base.h
+++ b/libstdc++-v3/include/bits/atomic_base.h
@@ -893,7 +893,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #if __cpp_lib_atomic_wait
       _GLIBCXX_ALWAYS_INLINE void
       wait(__pointer_type __old,
-	   memory_order __m = memory_order_seq_cst) noexcept
+	   memory_order __m = memory_order_seq_cst) const noexcept
       {
 	std::__atomic_wait_address_v(&_M_p, __old,
 				     [__m, this]
-- 
2.31.1