From d81a0ac7eddd1c9a40e8124576259250a0accb1a Mon Sep 17 00:00:00 2001
From: Guillaume Pasero <guillaume.pasero@c-s.fr>
Date: Wed, 18 Mar 2015 14:20:56 +0100
Subject: [PATCH] ENH: unused variable

---
 SuperBuild/CMake/External_zlib.cmake | 2 --
 1 file changed, 2 deletions(-)

diff --git a/SuperBuild/CMake/External_zlib.cmake b/SuperBuild/CMake/External_zlib.cmake
index baf114b94f..d67f96b967 100644
--- a/SuperBuild/CMake/External_zlib.cmake
+++ b/SuperBuild/CMake/External_zlib.cmake
@@ -5,8 +5,6 @@ set(__EXTERNAL_${proj}__ 1)
 
 message(STATUS "Setup Zlib ...")
 
-ADD_SYSTEM_PREFIX(PROJECT ${proj} CMAKE_ALIAS ZLIB_ROOT)
-
 if(USE_SYSTEM_ZLIB)
   find_package(ZLIB)
   add_custom_target(${proj})
-- 
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