[committed] libstdc++: Document addition of libstdc++exp.a

[Jonathan Wakely]

Pushed to trunk. I'll backport to gcc-13 too.

-- >8 --

The API Evolution section of the manual should mention when the
libstdc++exp.a library was added.

libstdc++-v3/ChangeLog:

        * doc/xml/manual/evolution.xml: Document addition of
        libstdc++exp.a.
        * doc/html/*: Regenerate.
---
 libstdc++-v3/doc/html/index.html                   |  6 +++---
 libstdc++-v3/doc/html/manual/api.html              |  4 +++-
 libstdc++-v3/doc/html/manual/appendix.html         |  2 +-
 libstdc++-v3/doc/html/manual/appendix_porting.html |  2 +-
 libstdc++-v3/doc/html/manual/index.html            |  2 +-
 libstdc++-v3/doc/xml/manual/evolution.xml          | 10 ++++++++++
 6 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/libstdc++-v3/doc/xml/manual/evolution.xml 
b/libstdc++-v3/doc/xml/manual/evolution.xml
index db70f24f2f9..63666b7b24c 100644
--- a/libstdc++-v3/doc/xml/manual/evolution.xml
+++ b/libstdc++-v3/doc/xml/manual/evolution.xml
@@ -1100,6 +1100,16 @@ Tunables <variable>glibcxx.eh_pool.obj_count</variable> 
and
 <variable>glibcxx.eh_pool.obj_size</variable> were added.
 </para>
 
+<para>Static library <filename>libstdc++exp.a</filename> was added
+to provide the symbols for the experimental C++ Contracts support.</para>
+
+</section>
+
+<section 
xml:id="api.rel_133"><info><title><constant>13.3</constant></title></info>
+
+<para>Symols for the Filesystem TS and C++23 
<filename>&lt;stacktrace&gt;</filename>
+header were added to the static library 
<filename>libstdc++exp.a</filename>.</para>
+
 </section>
 
 <section 
xml:id="api.rel_141"><info><title><constant>14</constant></title></info>
-- 
2.43.0