README: Mention prerequisites and customizable parts

diff --git a/README b/README
index c2ed2a14adff4cb938560cf114e860e67dbeae03..c2e400a40a3ef75259cf188549e317d75b2dc032 100644 (file)
--- a/README
+++ b/README
@@ -2,7 +2,7 @@
 
                            Arexx Data Logger Daemon
 
-                      (c) 2011 Martin Mares <mj@ucw.cz>
+                   (c) 2011--2012 Martin Mares <mj@ucw.cz>
 
        You can use and distribute this program under the terms of GPLv2.
 
@@ -28,3 +28,9 @@ source to process the data in any way you like.
 This program is not supported or endorsed by AREXX in any way. Also, there is
 no warranty on what it does or does not. However, if you have any bug reports
 or suggestions, I will be glad to hear them.
+
+To build the program, you need development packages for libusb-1.0 and librrd
+(they are probably called <something>-dev in your system). You might want
+to tweak init-arexxd script, which expects that an account called "arexxd"
+exists in /etc/passwd. Also, you can customize the correct_point() function
+in arexxd.c.