Add documentation for the installation.

1 files changed, 8 insertions, 1 deletions

diff --git a/INSTALL b/INSTALL
index 83ec56b1..bcfaea76 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,6 +1,8 @@
-    Copyright 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2009
+    Copyright 1997,1999,2000,2001,2002,2003,2004,2006,2009,2013
       Free Software Foundation, Inc.
 
+    Last Update: 15 Apr 2013
+
     Copying and distribution of this file, with or without modification,
     are permitted in any medium without royalty provided the copyright
     notice and this notice are preserved.
@@ -94,6 +96,11 @@ usual malloc, it is good idea to include it in LIBS.  For example,
 using the malloc that comes with GNU Emacs version 20 can give a
 worthwhile (and sometimes spectacular) performance improvement.
 
+Many programs within the `groff' system are written in the Perl
+language.  So you need a `perl' program with the least version of
+`v5.6.1'.
+
+
 If you want A4 or letter paper format and the configure script produces
 an incorrect guess, say