Merge pull request #1818 from borglab/frank/cmake

Update cmake

Author: dellaert

CMakeLists.txt

@@ -1,4 +1,8 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.5)
+cmake_policy(SET CMP0082 NEW) # install from sub-directories immediately
+cmake_policy(SET CMP0102 NEW) # set policy on advanced variables and cmake cache
+cmake_policy(SET CMP0156 NEW) # new linker strategies
+cmake_policy(SET CMP0167 OLD) # Don't complain about boost
 
 # Set the version number for the library
 set (GTSAM_VERSION_MAJOR 4)

cmake/HandleBoost.cmake

@@ -25,7 +25,7 @@ endif()
 set(BOOST_FIND_MINIMUM_VERSION 1.65)
 set(BOOST_FIND_MINIMUM_COMPONENTS serialization system filesystem thread program_options date_time timer chrono regex)
 
-find_package(Boost ${BOOST_FIND_MINIMUM_VERSION} COMPONENTS ${BOOST_FIND_MINIMUM_COMPONENTS})
+find_package(Boost ${BOOST_FIND_MINIMUM_VERSION} COMPONENTS ${BOOST_FIND_MINIMUM_COMPONENTS} REQUIRED)
 
 # Required components
 if(NOT Boost_SERIALIZATION_LIBRARY OR NOT Boost_SYSTEM_LIBRARY OR NOT Boost_FILESYSTEM_LIBRARY OR

cmake/example_cmake_find_gtsam/CMakeLists.txt

@@ -1,7 +1,7 @@
 # This file shows how to build and link a user project against GTSAM using CMake
 ###################################################################################
 # To create your own project, replace "example" with the actual name of your project
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.5)
 project(example CXX)
 
 # Find GTSAM, either from a local build, or from a Debian/Ubuntu package.