From 193702b0fbac827994df0b960475ce3ad9323c83 Mon Sep 17 00:00:00 2001
From: nanbor <nanbor@ae88bc3d-4319-0410-8dbf-d08b4c9d3795>
Date: Mon, 7 Jun 1999 19:13:10 +0000
Subject: Added a general section.

---
 ACE-INSTALL.html | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/ACE-INSTALL.html b/ACE-INSTALL.html
index 63515630fb2..91a0688b7de 100644
--- a/ACE-INSTALL.html
+++ b/ACE-INSTALL.html
@@ -155,7 +155,7 @@ try to help you fix the problems.
 	  patches for the compiler show up we will be able to make
 	  that our compiler of choice on Solaris.
 	</p>
-	
+
   <LI><B> Sun OS 4.1.x using Centerline C++ 2.x, Sun CC 3.x, and Lucid
       Energize 3.2. </B> <P>
 
@@ -705,6 +705,17 @@ If you use the GNU GCC g++ compiler please note the following:
 The following explains how to build the ACE on <A
 HREF="#unix">UNIX</A> and <A HREF="#win32">Win32</A>.
 
+<h4>General Rules</h4>
+<UL>
+  <li><p>Many features in ACE can be modified by defining some macros in
+      <code>$ACE_ROOT/ace/config.h</code>.  These macros should
+      <em><b>always</b></em> appear <em><b>before</b></em> including
+      your platform specific config file.</p>
+  <li><p>However, if you want to undefine/redefine macros defined in the
+      platform specific config file, these <code>#undef</code> should
+      come <em><b>after</b></em> the config file.</p>
+</UL>
+
 <H4><A NAME="unix">Building and Installing ACE on UNIX</A></H4>
 
 Building and installing ACE on UNIX is relatively simple (the <A
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