From 1a0512b0611e0fc61886352b3f7bc92e5b791635 Mon Sep 17 00:00:00 2001
From: Philip Lowman <philip@yhbt.com>
Date: Fri, 20 Mar 2009 23:52:32 -0400
Subject: BUG: LIST(REMOVE_ITEM...) was being called on a variable that could
 be empty.

---
 Modules/FindBoost.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index f4ccf09..ce6eb5b 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -304,7 +304,7 @@ IF(Boost_INCLUDE_DIR)
 
   # On versions < 1.35, remove the System library from the considered list
   # since it wasn't added until 1.35.
-  if(Boost_VERSION)
+  if(Boost_VERSION AND Boost_FIND_COMPONENTS)
      math(EXPR _boost_maj "${Boost_VERSION} / 100000")
      math(EXPR _boost_min "${Boost_VERSION} / 100 % 1000")
      if(${_boost_maj}.${_boost_min} VERSION_LESS 1.35)
-- 
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