From f571658aa4112d1885e337cdf003fa2a9439b7dd Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Sat, 14 Dec 2013 18:07:55 -0500
Subject: [PATCH] Commentary

---
 bin/verilator | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bin/verilator b/bin/verilator
index 2a607c01e..b255ac723 100755
--- a/bin/verilator
+++ b/bin/verilator
@@ -754,7 +754,9 @@ to gcc -MP option.
 =item --Mdir I<directory>
 
 Specifies the name of the Make object directory.  All generated files will
-be placed in this directory.  If not specified, "obj_dir" is used.
+be placed in this directory.  If not specified, "obj_dir" is used.  The
+directory is created if it does not exist and the parent directories exist;
+otherwise manually create the Mdir before calling Verilator.
 
 =item --mod-prefix I<topname>