From 0210426f2d6488115362bcb5f681e5178cad969a Mon Sep 17 00:00:00 2001
From: Don Stewart <dons@galois.com>
Date: Sat, 6 Oct 2007 11:40:06 +0200
Subject: mention C headers

darcs-hash:20071006094006-cba2c-ffd484d0f3524a513421bf242a03bb443216dbb8
---
 README | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'README')

diff --git a/README b/README
index dff9617..733aed4 100644
--- a/README
+++ b/README
@@ -40,6 +40,12 @@ Building:
 
 Get the dependencies
 
+    Firstly, you'll need the C X11 library headers. On many platforms,
+    these come pre-installed. For others, such as Debian, you can get 
+    them from your package manager:
+
+        apt-get install libx11-dev
+
     It is likely that you already have some of these dependencies.  To check
     whether you've got a package run 'ghc-pkg list some_package_name'
 
-- 
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