From 80e07a95f2012521e1649799a781836ff39f3b51 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Kami=C5=84ski?= <tomaszkam@gmail.com>
Date: Mon, 3 Nov 2025 21:31:47 +0100
Subject: [PATCH 1/2] New issue to address US 65-116: Forward declarations of
 entities need also in entries

---
 xml/issue4440.xml | 50 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 xml/issue4440.xml

diff --git a/xml/issue4440.xml b/xml/issue4440.xml
new file mode 100644
index 0000000000..d5c00c4f0f
--- /dev/null
+++ b/xml/issue4440.xml
@@ -0,0 +1,50 @@
+<?xml version='1.0' encoding='utf-8' standalone='no'?>
+<!DOCTYPE issue SYSTEM "lwg-issue.dtd">
+
+<issue num="4440" status="New">
+<title>Forward declarations of entities need also in entries</title>
+<section>
+<sref ref="[version.syn]"/>
+</section>
+<submitter>Tomasz Kamiński</submitter>
+<date>03 Nov 2025</date>
+<priority>99</priority>
+
+<discussion>
+<b>US 65-116</b>
+<p>
+There are forward declarations of entities from <tt>&lt;spanstream&gt;</tt> and
+<tt>&lt;syncstream&gt;</tt> in <tt>&lt;iosfwd&gt;</tt> so their feature macros
+should be added to that header too. Proposed change: Add <tt>&lt;iosfwd&gt;</tt>
+to the "also in" entries for `__cpp_lib_char8_t`, `__cpp_lib_spanstream`, and
+`__cpp_lib_syncbuf`.
+</p>
+</discussion>
+
+<resolution>
+<p>
+This wording is relative to <paper num="N5014"/>.
+</p>
+
+<ol>
+
+<li><p>Modify <sref ref="[version.syn]"/> as indicated:</p>
+
+<blockquote>
+<pre>
+#define __cpp_lib_char8_t                           201907L
+  // freestanding, also in &lt;atomic&gt;, &lt;filesystem&gt;, <ins>&lt;iosfwd&gt;,</ins> &lt;istream&gt;, &lt;limits&gt;, &lt;locale&gt;, &lt;ostream&gt;, &lt;string&gt;,
+  // &lt;string_view&gt;
+[&hellip;]
+#define __cpp_lib_spanstream                        202106L // also in <ins>&lt;iosfwd&gt;,</ins> &lt;spanstream&gt;
+[&hellip;]
+#define __cpp_lib_syncbuf                           201803L // also in <ins>&lt;iosfwd&gt;,</ins> &lt;syncstream&gt;
+</pre>
+</blockquote>
+</li>
+
+</ol>
+
+</resolution>
+
+</issue>

From 6f45f94a4dc5edaa36cc6db21f8276e35f37a74a Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <github@kayari.org>
Date: Mon, 3 Nov 2025 20:55:35 +0000
Subject: [PATCH 2/2] Update xml/issue4440.xml

---
 xml/issue4440.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xml/issue4440.xml b/xml/issue4440.xml
index d5c00c4f0f..882f21a029 100644
--- a/xml/issue4440.xml
+++ b/xml/issue4440.xml
@@ -11,7 +11,7 @@
 <priority>99</priority>
 
 <discussion>
-<b>US 65-116</b>
+<b>Addresses US 65-116</b>
 <p>
 There are forward declarations of entities from <tt>&lt;spanstream&gt;</tt> and
 <tt>&lt;syncstream&gt;</tt> in <tt>&lt;iosfwd&gt;</tt> so their feature macros