Lower cmake requirement to 2.8.11

Was set to 3.0 by #108 altough target_include_directories existed earlier:
https://cmake.org/cmake/help/v2.8.11/cmake.html

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 636a4611263f0dfefd5269c84ff5dfd4a652c28e..53b2bf60c4ae20b77ba1fa316bd6775c1f6b4053 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@
 # Benoit Scherrer, 2010 CRL, Harvard Medical School
 # Copyright (c) 2008-2009 Children's Hospital Boston
 #==============================================================================
-cmake_minimum_required (VERSION 3.0)
+cmake_minimum_required (VERSION 2.8.11)
 
 if (NOT DEFINED CMAKE_BUILD_TYPE)
   set (CMAKE_BUILD_TYPE Release CACHE STRING "Build type")