From cd345eb3a8b1928890c8ffd1c8e5ceb14b44ca21 Mon Sep 17 00:00:00 2001
From: Vladimir Prus <ghost@cs.msu.su>
Date: Sun, 24 Sep 2006 09:40:40 +0000
Subject: [PATCH] Add comment

[SVN r35303]
---
 v2/tools/pch.jam | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/v2/tools/pch.jam b/v2/tools/pch.jam
index 28ef70b2f..370ba67a4 100644
--- a/v2/tools/pch.jam
+++ b/v2/tools/pch.jam
@@ -50,6 +50,9 @@ class pch-generator : generator
 
     rule run ( project name ? : property-set : sources * )
     {
+        # The two sources are cpp file and PCHEADER, but they
+        # can be passed in any order. Figure out which source
+        # is what.
         local cpp = $(sources[2]) ;
         local h   = $(sources[1]) ;
         if [ $(sources[2]).type ] = PCHEADER