Tell people using the tutorial how to make it actually work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141103 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/tutorial/LangImpl6.html b/docs/tutorial/LangImpl6.html
index 39264cf..17ba301 100644
--- a/docs/tutorial/LangImpl6.html
+++ b/docs/tutorial/LangImpl6.html
@@ -815,6 +815,12 @@
</pre>
</div>
+<p>On some platforms, you will need to specify -rdynamic or -Wl,--export-dynamic
+when linking. This ensures that symbols defined in the main executable are
+exported to the dynamic linker and so are available for symbol resolution at
+run time. This is not needed if you compile your support code into a shared
+library, although doing that will cause problems on Windows.</p>
+
<p>Here is the code:</p>
<div class="doc_code">