[committed] libstdc++: Fix test FAIL for old std::string ABI

[Jonathan Wakely <jwakely@redhat.com>]

Tested powerpc64le-linux. Pushed to trunk.

-- >8 --

libstdc++-v3/ChangeLog:

	* testsuite/std/ranges/adaptors/join_with/1.cc: Remove unused
	<sstream header.
	(test04): Remove constexpr for old std::string ABI and test at
	runtime.
---
 .../testsuite/std/ranges/adaptors/join_with/1.cc     | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/join_with/1.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/join_with/1.cc
index efa350feb11..8b9c6c4fc9f 100644
--- a/libstdc++-v3/testsuite/std/ranges/adaptors/join_with/1.cc
+++ b/libstdc++-v3/testsuite/std/ranges/adaptors/join_with/1.cc
@@ -3,8 +3,7 @@
 
 #include <ranges>
 #include <algorithm>
-#include <sstream>
-#include <string_view>
+#include <string>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
@@ -73,7 +72,10 @@ test03()
   return true;
 }
 
-constexpr bool
+#if _GLIBCXX_USE_CXX11_ABI
+constexpr
+#endif
+bool
 test04()
 {
   std::string rs[] = {"a", "", "b", "", "c"};
@@ -93,5 +95,9 @@ main()
   static_assert(test01());
   static_assert(test02());
   static_assert(test03());
+#if _GLIBCXX_USE_CXX11_ABI
   static_assert(test04());
+#else
+  VERIFY(test04());
+#endif
 }
-- 
2.37.3