Stronger warning.

git-svn-id: https://svn.dealii.org/trunk@2626 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/doc/readme.html b/deal.II/doc/readme.html
index d107ae5ed1cea9ce4fc19ce34bb4727926498385..5c72f9f7302f81d9d2cfece2586b28f6222fcbbd 100644 (file)
--- a/deal.II/doc/readme.html
+++ b/deal.II/doc/readme.html
@@ -319,7 +319,9 @@
       deal.II library are fully thread-safe (though most are and
       multi-threaded programs are working well and routinely) and that
       gcc's runtime library is not thread-safe unless you configure gcc
-      with <code>--enable-threads</code> and recompile it.
+      with <code>--enable-threads</code> and recompile it. Using a gcc
+      that was not configured with this option may lead to errors in
+      your threaded programs that are extremely hard to find.
       </p>
 
     <li>