drd-manual.xml: Fix link to libstdc++ manual GLIBCXX_FORCE_NEW reference.

diff --git a/drd/docs/drd-manual.xml b/drd/docs/drd-manual.xml
index 8fe1903e6c0d57927872cd27987a90837a94edde..59fbb11e4035a8ef1b84a3cc65f449cf982ed896 100644 (file)
--- a/drd/docs/drd-manual.xml
+++ b/drd/docs/drd-manual.xml
@@ -1529,7 +1529,7 @@ to use standard memory allocation functions instead of memory pools by
 setting the environment variable
 <literal>GLIBCXX_FORCE_NEW</literal>. For more information, see also
 the <ulink
-url="http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt04ch11.html">libstdc++
+url="https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug.html">libstdc++
 manual</ulink>.
 </para>