diff --git a/wxPython/docs/BUILD.html b/wxPython/docs/BUILD.html
index 7158c4ebe8..26f00f4817 100644
--- a/wxPython/docs/BUILD.html
+++ b/wxPython/docs/BUILD.html
@@ -340,10 +340,14 @@ selection of command-line flags as described above.  Repeat this
 same command from the following directories in order to build the
 contrib libraries:</p>
 <pre class="literal-block">
-%WXDIR%\contrib\build\gizmos
-%WXDIR%\contrib\build\xrc
-%WXDIR%\contrib\build\stc
-%WXDIR%\contrib\build\ogl
+    %WXDIR%\contrib\build\gizmos
+    %WXDIR%\contrib\build\xrc
+    %WXDIR%\contrib\build\stc
+    %WXDIR%\contrib\build\ogl
+
+Note, that the ogl lib build will need an additional flag::
+
+    CPPFLAGS=&quot;-DwxUSE_DEPRECATED=0&quot;
 </pre>
 </li>
 <li><p class="first">When that is all done it will have built the main wxWidgets DLLs
diff --git a/wxPython/docs/BUILD.txt b/wxPython/docs/BUILD.txt
index 9cd5fdce91..7d9700ba8c 100644
--- a/wxPython/docs/BUILD.txt
+++ b/wxPython/docs/BUILD.txt
@@ -362,6 +362,9 @@ accordingly if you are using the bash shell.
 	%WXDIR%\contrib\build\stc
 	%WXDIR%\contrib\build\ogl
 
+    Note, that the ogl lib build will need an additional flag::
+
+	CPPFLAGS="-DwxUSE_DEPRECATED=0"
 
 7.  When that is all done it will have built the main wxWidgets DLLs
     and also some of the contribs DLLs.  There should be a ton of DLLs