[gcc r15-11133] libstdc++: Fix mainpage.html link to Doxygen docs [PR109965]

[Jonathan Wakely]

https://gcc.gnu.org/g:6d8bd4968da00255b6f643055db078b04f784772

commit r15-11133-g6d8bd4968da00255b6f643055db078b04f784772
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue May 5 10:16:36 2026 +0100

    libstdc++: Fix mainpage.html link to Doxygen docs [PR109965]
    
    Doxygen renamed the "Modules" documentation to "Topics" a few years ago
    to avoid confusion with C++20 Modules:
    https://github.com/doxygen/doxygen/issues/8772
    
    This updates our internal link to 'modules.html' so that it refers to
    'topics.html' instead.
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/109965
            * doc/doxygen/mainpage.html: Link to topics.html instead of
            modules.html
    
    (cherry picked from commit f95c05fe96af1de24929575b5ee8a05438fcfbcc)

Diff:
---
 libstdc++-v3/doc/doxygen/mainpage.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/doc/doxygen/mainpage.html b/libstdc++-v3/doc/doxygen/mainpage.html
index b54482a74e99..03a3adfaf65f 100644
--- a/libstdc++-v3/doc/doxygen/mainpage.html
+++ b/libstdc++-v3/doc/doxygen/mainpage.html
@@ -38,7 +38,7 @@
 
 <p>Here are entry points to all the pages generated by Doxygen:
    <ul>
-    <li><a href="modules.html">Modules</a></li>
+    <li><a href="topics.html">Topics</a></li>
 
     <li>Namespaces
     <ul>