cmake_minimum_required(VERSION 2.4.3) set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true) #this line has to appear before 'PROJECT' in order to be able to disable incremental linking SET(MSVC_INCREMENTAL_DEFAULT ON) PROJECT(BULLET_PHYSICS) SET(BULLET_VERSION 2.81) IF(COMMAND cmake_policy) cmake_policy(SET CMP0003 NEW) ENDIF(COMMAND cmake_policy) IF (NOT CMAKE_BUILD_TYPE) # SET(CMAKE_BUILD_TYPE "Debug") SET(CMAKE_BUILD_TYPE "Release") ENDIF (NOT CMAKE_BUILD_TYPE) SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_DEBUG") #MESSAGE("CMAKE_CXX_FLAGS_DEBUG="+${CMAKE_CXX_FLAGS_DEBUG}) OPTION(USE_DOUBLE_PRECISION "Use double precision" OFF) OPTION(USE_GRAPHICAL_BENCHMARK "Use Graphical Benchmark" ON) OPTION(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC Runtime Library DLL (/MD or /MDd)" OFF) OPTION(USE_MSVC_INCREMENTAL_LINKING "Use MSVC Incremental Linking" OFF) OPTION(USE_CUSTOM_VECTOR_MATH "Use custom vectormath library" OFF) IF (USE_CUSTOM_VECTOR_MATH) ADD_DEFINITIONS(-DUSE_SYSTEM_VECTORMATH) IF(WIN32) SET (VECTOR_MATH_INCLUDE ${BULLET_PHYSICS_SOURCE_DIR}/src/vectormath/sse CACHE PATH "Vector Math library include path.") ELSE(WIN32) SET (VECTOR_MATH_INCLUDE ${BULLET_PHYSICS_SOURCE_DIR}/src/vectormath/scalar CACHE PATH "Vector Math library include path.") ENDIF(WIN32) ENDIF(USE_CUSTOM_VECTOR_MATH) IF (APPLE OR MSVC) OPTION(BUILD_MULTITHREADING "Use BulletMultiThreading" ON) ELSE() OPTION(BUILD_MULTITHREADING "Use BulletMultiThreading" OFF) ENDIF() IF (BUILD_MULTITHREADING) OPTION(USE_MULTITHREADED_BENCHMARK "Use Multithreaded Benchmark" OFF) IF (USE_MULTITHREADED_BENCHMARK) ADD_DEFINITIONS(-DUSE_PARALLEL_SOLVER_BENCHMARK -DUSE_PARALLEL_DISPATCHER_BENCHMARK) ENDIF(USE_MULTITHREADED_BENCHMARK) IF (MSVC OR APPLE) OPTION(BUILD_MINICL_OPENCL_DEMOS "Build OpenCL demos for MiniCL (Generic CPU)" ON) ELSE() OPTION(BUILD_MINICL_OPENCL_DEMOS "Build OpenCL demos for MiniCL (Generic CPU)" OFF) ENDIF(MSVC OR APPLE) IF(MSVC) FIND_PATH(DIRECTX_SDK_BASE_DIR Include/D3D11.h PATH $ENV{DXSDK_DIR} ) IF(DIRECTX_SDK_BASE_DIR) OPTION(USE_DX11 "Use DirectX 11" ON) ELSE() OPTION(USE_DX11 "Use DirectX 11" OFF) ENDIF() FIND_PATH(AMD_OPENCL_BASE_DIR include/CL/cl.h PATH $ENV{ATISTREAMSDKROOT} $ENV{AMDAPPSDKROOT} ) IF(AMD_OPENCL_BASE_DIR) #AMD adds an extras slash at the end of the ATISTREAMSDKROOT variable SET(AMD_OPENCL_INCLUDES ${AMD_OPENCL_BASE_DIR}/include ) MESSAGE("AMD OPENCL SDK FOUND") IF (CMAKE_CL_64) SET(CMAKE_ATISTREAMSDK_LIBPATH ${AMD_OPENCL_BASE_DIR}/lib/x86_64 ) ELSE(CMAKE_CL_64) SET(CMAKE_ATISTREAMSDK_LIBPATH ${AMD_OPENCL_BASE_DIR}/lib/x86 ) ENDIF(CMAKE_CL_64) SET(CMAKE_ATISTREAMSDK_LIBRARY ${CMAKE_ATISTREAMSDK_LIBPATH}/OpenCL.lib ) OPTION(BUILD_AMD_OPENCL_DEMOS "Build OpenCL demos for AMD (GPU or CPU)" ON) IF (CMAKE_CL_64) SET(CMAK_GLEW_LIBRARY ${BULLET_PHYSICS_SOURCE_DIR}/Glut/glew64s.lib ) ELSE(CMAKE_CL_64) SET(CMAK_GLEW_LIBRARY ${BULLET_PHYSICS_SOURCE_DIR}/Glut/glew32s.lib ) ENDIF(CMAKE_CL_64) ELSE() OPTION(BUILD_AMD_OPENCL_DEMOS "Build OpenCL demos for AMD (GPU or CPU)" OFF) ENDIF() FIND_PATH(INTEL_OPENCL_BASE_DIR include/CL/cl.h PATH $ENV{INTELOCLSDKROOT} ) IF(INTEL_OPENCL_BASE_DIR) SET(INTEL_OPENCL_INCLUDES ${INTEL_OPENCL_BASE_DIR}/include ) MESSAGE("INTEL OPENCL SDK FOUND") MESSAGE(${INTEL_OPENCL_INCLUDES}) IF (CMAKE_CL_64) SET(CMAKE_INTELOCLSDK_LIBPATH ${INTEL_OPENCL_BASE_DIR}/lib/x64 ) ELSE(CMAKE_CL_64) SET(CMAKE_INTELOCLSDK_LIBPATH ${INTEL_OPENCL_BASE_DIR}/lib/x86 ) ENDIF(CMAKE_CL_64) SET(INTEL_OPENCL_LIBRARIES ${CMAKE_INTELOCLSDK_LIBPATH}/OpenCL.lib) OPTION(BUILD_INTEL_OPENCL_DEMOS "Build OpenCL demos for Intel (CPU)" ON) ELSE() OPTION(BUILD_INTEL_OPENCL_DEMOS "Build OpenCL demos for Intel (CPU)" OFF) ENDIF() FIND_PATH(NVIDIA_OPENCL_BASE_DIR include/CL/cl.h PATH $ENV{CUDA_PATH} ) IF(NVIDIA_OPENCL_BASE_DIR) SET(NVIDIA_OPENCL_INCLUDES ${NVIDIA_OPENCL_BASE_DIR}/include ) MESSAGE("NVIDIA OPENCL SDK FOUND") MESSAGE(${NVIDIA_OPENCL_INCLUDES}) IF (CMAKE_CL_64) SET(CMAKE_NVSDKCOMPUTE_LIBPATH ${NVIDIA_OPENCL_BASE_DIR}/lib/x64 ) ELSE(CMAKE_CL_64) SET(CMAKE_NVSDKCOMPUTE_LIBPATH ${NVIDIA_OPENCL_BASE_DIR}/lib/Win32 ) ENDIF(CMAKE_CL_64) SET(NVIDIA_OPENCL_LIBRARIES ${CMAKE_NVSDKCOMPUTE_LIBPATH}/OpenCL.lib) OPTION(BUILD_NVIDIA_OPENCL_DEMOS "Build OpenCL demos for NVidia (GPU)" ON) ELSE() OPTION(BUILD_NVIDIA_OPENCL_DEMOS "Build OpenCL demos for NVidia (GPU)" OFF) ENDIF() ELSE(MSVC) FIND_PATH(AMD_OPENCL_BASE_DIR include/CL/cl.h PATH $ENV{ATISTREAMSDKROOT} $ENV{AMDAPPSDKROOT} ) IF(AMD_OPENCL_BASE_DIR) #AMD adds an extras slash at the end of the ATISTREAMSDKROOT variable SET(AMD_OPENCL_INCLUDES ${AMD_OPENCL_BASE_DIR}/include ) MESSAGE("AMD OPENCL SDK FOUND") MESSAGE(${AMD_OPENCL_INCLUDES}) IF (CMAKE_CL_64) SET(CMAKE_ATISTREAMSDK_LIBPATH ${AMD_OPENCL_BASE_DIR}/lib/x86_64 ) ELSE(CMAKE_CL_64) SET(CMAKE_ATISTREAMSDK_LIBPATH ${AMD_OPENCL_BASE_DIR}/lib/x86 ) ENDIF(CMAKE_CL_64) OPTION(BUILD_AMD_OPENCL_DEMOS "Build OpenCL demos for AMD (GPU or CPU)" ON) SET(CMAKE_ATISTREAMSDK_LIBRARY OpenCL ) ELSE() OPTION(BUILD_AMD_OPENCL_DEMOS "Build OpenCL demos for AMD (GPU or CPU)" OFF) ENDIF(AMD_OPENCL_BASE_DIR) FIND_PATH(INTEL_OPENCL_INCLUDES CL/cl.h) FIND_PATH(INTEL_OPENCL_ICD_CFG intelocl64.icd /etc/OpenCL/vendors) FIND_LIBRARY(INTEL_OPENCL_LIBRARIES OpenCL PATH /usr/lib64) IF (INTEL_OPENCL_INCLUDES AND INTEL_OPENCL_LIBRARIES AND INTEL_OPENCL_ICD_CFG) MESSAGE("INTEL OPENCL SDK FOUND") MESSAGE(${INTEL_OPENCL_LIBRARIES}) OPTION(BUILD_INTEL_OPENCL_DEMOS "Build OpenCL demos for Intel (CPU)" ON) ELSE () MESSAGE("INTEL OPENCL NOT FOUND") OPTION(BUILD_INTEL_OPENCL_DEMOS "Build OpenCL demos for Intel (CPU)" OFF) ENDIF () FIND_PATH(NVIDIA_OPENCL_INCLUDES CL/cl.h) FIND_PATH(NVIDIA_OPENCL_ICD_CFG nvidia.icd /etc/OpenCL/vendors) FIND_LIBRARY(NVIDIA_OPENCL_LIBRARIES OpenCL PATH /usr/lib64 /usr/local/lib) IF (NVIDIA_OPENCL_INCLUDES AND NVIDIA_OPENCL_LIBRARIES AND NVIDIA_OPENCL_ICD_CFG) MESSAGE("NVidia OPENCL FOUND") MESSAGE(${NVIDIA_OPENCL_LIBRARIES}) OPTION(BUILD_NVIDIA_OPENCL_DEMOS "Build OpenCL demos for NVidia (GPU)" ON) ELSE () MESSAGE("NVidia OPENCL NOT FOUND") OPTION(BUILD_NVIDIA_OPENCL_DEMOS "Build OpenCL demos for NVidia (GPU)" OFF) ENDIF () ENDIF(MSVC) ELSE(BUILD_MULTITHREADING) # SET(BUILD_NVIDIA_OPENCL_DEMOS OFF CACHE BOOL "Build OpenCL demos for NVidia" FORCE) # SET(BUILD_AMD_OPENCL_DEMOS OFF CACHE BOOL "Build OpenCL demos for AMD" FORCE) # SET(BUILD_INTEL_OPENCL_DEMOS OFF CACHE BOOL "Build OpenCL demos for Intel (CPU)" FORCE) # SET(BUILD_MINICL_OPENCL_DEMOS OFF CACHE BOOL "Build OpenCL demos for MiniCL (Generic CPU)" FORCE) # SET(USE_DX11 OFF CACHE BOOL "Use DirectX 11" FORCE) # SET(USE_MULTITHREADED_BENCHMARK OFF CACHE BOOL "Use Multithreaded Benchmark" FORCE) ENDIF(BUILD_MULTITHREADING) #SET(CMAKE_EXE_LINKER_FLAGS_INIT "/STACK:10000000 /INCREMENTAL:NO") #SET(CMAKE_EXE_LINKER_FLAGS "/STACK:10000000 /INCREMENTAL:NO") #MESSAGE("MSVC_INCREMENTAL_YES_FLAG"+${MSVC_INCREMENTAL_YES_FLAG}) IF(MSVC) IF (NOT USE_MSVC_INCREMENTAL_LINKING) #MESSAGE("MSVC_INCREMENTAL_DEFAULT"+${MSVC_INCREMENTAL_DEFAULT}) SET( MSVC_INCREMENTAL_YES_FLAG "/INCREMENTAL:NO") STRING(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replacementFlags ${CMAKE_EXE_LINKER_FLAGS_DEBUG}) SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "/INCREMENTAL:NO ${replacementFlags}" ) MESSAGE("CMAKE_EXE_LINKER_FLAGS_DEBUG=${CMAKE_EXE_LINKER_FLAGS_DEBUG}") # STRING(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replacementFlags2 ${CMAKE_EXE_LINKER_FLAGS}) # SET(CMAKE_EXE_LINKER_FLAGS ${replacementFlag2}) # STRING(REPLACE "INCREMENTAL:YES" "" replacementFlags3 ${CMAKE_EXTRA_LINK_FLAGS}) # SET(CMAKE_EXTRA_LINK_FLAGS ${replacementFlag3}) STRING(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replacementFlags3 ${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}) SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO ${replacementFlags3}) SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/INCREMENTAL:NO ${replacementFlags3}" ) ENDIF (NOT USE_MSVC_INCREMENTAL_LINKING) IF (NOT USE_MSVC_RUNTIME_LIBRARY_DLL) #We statically link to reduce dependancies FOREACH(flag_var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO) IF(${flag_var} MATCHES "/MD") STRING(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}") ENDIF(${flag_var} MATCHES "/MD") IF(${flag_var} MATCHES "/MDd") STRING(REGEX REPLACE "/MDd" "/MTd" ${flag_var} "${${flag_var}}") ENDIF(${flag_var} MATCHES "/MDd") ENDFOREACH(flag_var) ENDIF (NOT USE_MSVC_RUNTIME_LIBRARY_DLL) OPTION(USE_MSVC_SSE "Use MSVC /arch:sse option" ON) IF (USE_MSVC_SSE) ADD_DEFINITIONS(/arch:SSE) ENDIF() OPTION(USE_MSVC_FAST_FLOATINGPOINT "Use MSVC /fp:fast option" ON) IF (USE_MSVC_FAST_FLOATINGPOINT) ADD_DEFINITIONS(/fp:fast) ENDIF() ENDIF(MSVC) IF (WIN32) OPTION(INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES "Create MSVC projectfiles that can be distributed" OFF) IF (INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES) SET (LIBRARY_OUTPUT_PATH ${BULLET_PHYSICS_SOURCE_DIR}/lib CACHE PATH "Single output directory for building all libraries.") SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${BULLET_PHYSICS_SOURCE_DIR}) SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${BULLET_PHYSICS_SOURCE_DIR}) SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${BULLET_PHYSICS_SOURCE_DIR}) SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY_MINSIZEREL ${BULLET_PHYSICS_SOURCE_DIR}) SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO ${BULLET_PHYSICS_SOURCE_DIR}) ELSE() SET (LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib CACHE PATH "Single output directory for building all libraries.") ENDIF() OPTION(INTERNAL_CREATE_MSVC_RELATIVE_PATH_PROJECTFILES "Create MSVC projectfiles with relative paths" OFF) OPTION(INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES "Add MSVC postfix for executable names (_Debug)" OFF) SET(CMAKE_DEBUG_POSTFIX "_Debug" CACHE STRING "Adds a postfix for debug-built libraries.") SET(CMAKE_MINSIZEREL_POSTFIX "_MinsizeRel" CACHE STRING "Adds a postfix for MinsizeRelease-built libraries.") SET(CMAKE_RELWITHDEBINFO_POSTFIX "_RelWithDebugInfo" CACHE STRING "Adds a postfix for ReleaseWithDebug-built libraries.") IF (INTERNAL_CREATE_MSVC_RELATIVE_PATH_PROJECTFILES) SET(CMAKE_SUPPRESS_REGENERATION 1) SET(CMAKE_USE_RELATIVE_PATHS 1) ENDIF(INTERNAL_CREATE_MSVC_RELATIVE_PATH_PROJECTFILES) ENDIF (WIN32) OPTION(BUILD_CPU_DEMOS "Build original Bullet CPU demos" ON) OPTION(INTERNAL_UPDATE_SERIALIZATION_STRUCTURES "Internal update serialization structures" OFF) IF (INTERNAL_UPDATE_SERIALIZATION_STRUCTURES) ADD_DEFINITIONS( -DBT_INTERNAL_UPDATE_SERIALIZATION_STRUCTURES) ENDIF (INTERNAL_UPDATE_SERIALIZATION_STRUCTURES) IF (USE_DOUBLE_PRECISION) ADD_DEFINITIONS( -DBT_USE_DOUBLE_PRECISION) SET( BULLET_DOUBLE_DEF "-DBT_USE_DOUBLE_PRECISION") ENDIF (USE_DOUBLE_PRECISION) IF(USE_GRAPHICAL_BENCHMARK) ADD_DEFINITIONS( -DUSE_GRAPHICAL_BENCHMARK) ENDIF (USE_GRAPHICAL_BENCHMARK) IF (WIN32) OPTION(USE_GLUT "Use Glut" ON) ADD_DEFINITIONS( -D_IRR_STATIC_LIB_ ) ADD_DEFINITIONS( -D_CRT_SECURE_NO_WARNINGS ) ADD_DEFINITIONS( -D_CRT_SECURE_NO_DEPRECATE ) ADD_DEFINITIONS( -D_SCL_SECURE_NO_WARNINGS ) IF (USE_GLUT AND MSVC) string (REPLACE "/D_WINDOWS" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) remove_definitions(-D_WINDOWS ) ENDIF() ELSE(WIN32) OPTION(USE_GLUT "Use Glut" ON) ENDIF(WIN32) IF(COMMAND cmake_policy) cmake_policy(SET CMP0003 NEW) ENDIF(COMMAND cmake_policy) # This is the shortcut to finding GLU, GLUT and OpenGL if they are properly installed on your system # This should be the case. FIND_PACKAGE(OpenGL) IF (OPENGL_FOUND) MESSAGE("OPENGL FOUND") MESSAGE(${OPENGL_LIBRARIES}) ELSE (OPENGL_FOUND) MESSAGE("OPENGL NOT FOUND") SET(OPENGL_gl_LIBRARY opengl32) SET(OPENGL_glu_LIBRARY glu32) ENDIF (OPENGL_FOUND) # ADD_DEFINITIONS(-DBT_USE_FREEGLUT) FIND_PACKAGE(GLU) IF (USE_GLUT) FIND_PACKAGE(GLUT) IF (GLUT_FOUND) MESSAGE("GLUT FOUND") MESSAGE(${GLUT_glut_LIBRARY}) ELSE (GLUT_FOUND) IF (MINGW) MESSAGE ("GLUT NOT FOUND not found, trying to use MINGW glut32") SET(GLUT_glut_LIBRARY glut32) #TODO add better GLUT detection for MinGW SET(GLUT_FOUND TRUE) ENDIF (MINGW) IF (MSVC) SET(GLUT_FOUND TRUE) IF (CMAKE_CL_64) message("Win64 using Glut/glut64.lib") SET(GLUT_glut_LIBRARY ${BULLET_PHYSICS_SOURCE_DIR}/Glut/glut64.lib) ELSE(CMAKE_CL_64) message("Win32 using Glut/glut32.lib") SET(GLUT_glut_LIBRARY ${BULLET_PHYSICS_SOURCE_DIR}/Glut/glut32.lib) ENDIF (CMAKE_CL_64) INCLUDE_DIRECTORIES(${BULLET_PHYSICS_SOURCE_DIR}/Glut) ELSE() MESSAGE("GLUT NOT FOUND") ENDIF (MSVC) ENDIF (GLUT_FOUND) IF(NOT WIN32) # This is added for linux. 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INCLUDE_DIRECTORIES(/usr/include /usr/local/include) ENDIF() ENDIF(USE_GLUT) OPTION(BUILD_DEMOS "Set when you want to build the demos" ON) IF(BUILD_DEMOS) IF(EXISTS ${BULLET_PHYSICS_SOURCE_DIR}/Demos AND IS_DIRECTORY ${BULLET_PHYSICS_SOURCE_DIR}/Demos) SUBDIRS(Demos) ENDIF() ENDIF(BUILD_DEMOS) # "Demos_ps3") IF (MSVC) IF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES) IF(EXISTS ${BULLET_PHYSICS_SOURCE_DIR}/Demos_ps3 AND IS_DIRECTORY ${BULLET_PHYSICS_SOURCE_DIR}/Demos_ps3) MESSAGE("Demos_ps3 found") SUBDIRS(Demos_ps3) ENDIF() ENDIF() ENDIF(MSVC) OPTION(BUILD_EXTRAS "Set when you want to build the extras" ON) IF(BUILD_EXTRAS) SUBDIRS(Extras) ENDIF(BUILD_EXTRAS) #Maya Dynamica plugin is moved to http://dynamica.googlecode.com SUBDIRS(src) IF("${CMAKE_GENERATOR}" MATCHES "Unix Makefiles") OPTION(INSTALL_LIBS "Set when you want to install libraries" ON) ELSE() IF(APPLE AND FRAMEWORK) OPTION(INSTALL_LIBS "Set when you want to install libraries" ON) ELSE() #by default, don't enable the 'INSTALL' option for Xcode and MSVC projectfiles OPTION(INSTALL_LIBS "Set when you want to install libraries" OFF) ENDIF() ENDIF() IF(INSTALL_LIBS) SET (LIB_SUFFIX "" CACHE STRING "Define suffix of directory name (32/64)" ) SET (LIB_DESTINATION "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}" CACHE STRING "Library directory name") ## the following are directories where stuff will be installed to SET(INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include/bullet/" CACHE PATH "The subdirectory to the header prefix") SET(PKGCONFIG_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/pkgconfig/" CACHE STRING "Base directory for pkgconfig files") IF(NOT WIN32) CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/bullet.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/bullet.pc @ONLY) INSTALL( FILES ${CMAKE_CURRENT_BINARY_DIR}/bullet.pc DESTINATION ${PKGCONFIG_INSTALL_PREFIX}) ENDIF(NOT WIN32) ENDIF(INSTALL_LIBS) #INSTALL of other files requires CMake 2.6 IF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5) OPTION(INSTALL_EXTRA_LIBS "Set when you want extra libraries installed" OFF) ENDIF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5) OPTION(BUILD_UNIT_TESTS "Build Unit Tests" OFF) IF (BUILD_UNIT_TESTS) SUBDIRS(UnitTests) ENDIF()