From 4b65af355930e2a6e5cdaea729a11a7cc8cbd0c9 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@master>
Date: Wed, 8 Jul 2015 02:21:46 +0000
Subject: ignore system boost if BOOST_ROOT is set

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ebebf17..19e3cfd4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,9 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 # core packages
 find_package(LibDL REQUIRED)
-set(Boost_NO_SYSTEM_PATHS ON)
+if(DEFINED ENV{BOOST_ROOT})
+  set(Boost_NO_SYSTEM_PATHS ON)
+endif()
 set(Boost_REALPATH ON)
 find_package(Boost COMPONENTS regex filesystem serialization program_options unit_test_framework system thread REQUIRED)
 include_directories(${Boost_INCLUDE_DIR})
-- 
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