From 5c63939c0be2333520a374e607b2470c77ec0389 Mon Sep 17 00:00:00 2001
From: Ryan Neufeld <ryan@neufeldmail.com>
Date: Tue, 25 Oct 2011 13:17:52 -0700
Subject: [PATCH] check for existence of rvm-prompt before running it.

---
 themes/ryanneufeld.zsh-theme | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/themes/ryanneufeld.zsh-theme b/themes/ryanneufeld.zsh-theme
index 269782d79..81467534c 100644
--- a/themes/ryanneufeld.zsh-theme
+++ b/themes/ryanneufeld.zsh-theme
@@ -10,8 +10,10 @@ svn_prompt_status() {
 }
 
 rvm_prompt_status() {
-	if [ "" -ne "$(rvm-prompt i v g)" ]; then
-		 echo "<"$(rvm-prompt i v g)">"
+	if [ -f "$(which rvm-prompt)"]; then
+		if [ "" -ne "$(rvm-prompt i v g)" ]; then
+			 echo "<"$(rvm-prompt i v g)">"
+		fi
 	fi
 }