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 39264cf830fbe778870118d6cf07a857dbefebb2..17ba301d4ab2c6883decb1df46cf1c9aa717b091 100644 (file)
--- a/docs/tutorial/LangImpl6.html
+++ b/docs/tutorial/LangImpl6.html
@@ -815,6 +815,12 @@ if/then/else and for expressions..  To build this example, use:
 </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">