From f3e8cbf41dfffefd6d90a2b64ce559c6b19e7fb9 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Mon, 28 Nov 2011 16:45:29 -0600
Subject: [PATCH] Requires ghostscript too

---
 lib/gollum/tex.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/gollum/tex.rb b/lib/gollum/tex.rb
index f84f02e7..01318823 100644
--- a/lib/gollum/tex.rb
+++ b/lib/gollum/tex.rb
@@ -40,6 +40,10 @@ module Gollum
       if `which convert` == ""
         raise Error, "`convert` command not found"
       end
+
+      if `which gs` == ""
+        raise Error, "`gs` command not found"
+      end
     end
 
     def self.render_formula(formula)