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CMakeLists backwards compatibility #2607

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Feb 28, 2020
Merged

CMakeLists backwards compatibility #2607

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10 changes: 8 additions & 2 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,13 +1,19 @@
cmake_minimum_required (VERSION 3.4)

if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.12")
if (CMAKE_VERSION VERSION_GREATER 3.12 OR CMAKE_VERSION VERSION_EQUAL 3.12)
#find_package uses <PACKAGENAME>_ROOT variables
cmake_policy(SET CMP0074 NEW)
endif()
if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.13")
if (CMAKE_VERSION VERSION_GREATER 3.13 OR CMAKE_VERSION VERSION_EQUAL 3.13)
#option honors normal variables
cmake_policy(SET CMP0077 NEW)
endif()

if (CMAKE_VERSION VERSION_LESS 3.11)
# compatibility for boost import targets use bundled 3.11 FindBoost.cmake
list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/legacyModules")
endif ()

# compatibility for osx sierra and on
# needs to be set before project
set (CMAKE_OSX_DEPLOYMENT_TARGET 10.12 CACHE STRING "")
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