Make googletest optional

CMakeLists.txt

@@ -167,64 +167,65 @@ else()
  target_link_libraries(inmemorybenchmarksnappy FastPFOR ${snappy_LIBRARIES})
 endif()
 
-# Download and unpack googletest at configure time
-configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
-execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
- RESULT_VARIABLE result
- WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
-if(result)
- message(FATAL_ERROR "CMake step for googletest failed: ${result}")
-endif()
-execute_process(COMMAND ${CMAKE_COMMAND} --build .
- RESULT_VARIABLE result
- WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
-if(result)
- message(FATAL_ERROR "Build step for googletest failed: ${result}")
-endif()
-
-# Prevent GoogleTest from overriding our compiler/linker options
-# when building with Visual Studio
-set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
-
-# Add googletest directly to our build. This adds
-# the following targets: gtest, gtest_main, gmock
-# and gmock_main
-add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
- ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
- EXCLUDE_FROM_ALL)
-
-# The gtest/gmock targets carry header search path
-# dependencies automatically when using CMake 2.8.11 or
-# later. Otherwise we have to add them here ourselves.
-if(CMAKE_VERSION VERSION_LESS 2.8.11)
- include_directories("${gtest_SOURCE_DIR}/include"
- "${gmock_SOURCE_DIR}/include")
-endif()
-
-add_executable(codecs src/codecs.cpp)
-target_link_libraries(codecs FastPFOR)
-
-add_executable(example example.cpp)
-target_link_libraries(example FastPFOR)
-
-add_executable(inmemorybenchmark src/inmemorybenchmark.cpp)
-target_link_libraries(inmemorybenchmark FastPFOR)
-
-add_executable(unit src/unit.cpp)
-target_link_libraries(unit FastPFOR)
-add_custom_target(check unit DEPENDS unit)
-
-
-add_executable(FastPFOR_unittest
+option(WITH_TEST "Build with Google Test" ON)
+
+if(WITH_TEST)
+ # Download and unpack googletest at configure time
+ configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
+ execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+ RESULT_VARIABLE result
+ WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
+ if(result)
+ message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+ endif()
+ execute_process(COMMAND ${CMAKE_COMMAND} --build .
+ RESULT_VARIABLE result
+ WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
+ if(result)
+ message(FATAL_ERROR "Build step for googletest failed: ${result}")
+ endif()
+
+ # Prevent GoogleTest from overriding our compiler/linker options
+ # when building with Visual Studio
+ set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+ # Add googletest directly to our build. This adds
+ # the following targets: gtest, gtest_main, gmock
+ # and gmock_main
+ add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
+ ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
+ EXCLUDE_FROM_ALL)
+
+ # The gtest/gmock targets carry header search path
+ # dependencies automatically when using CMake 2.8.11 or
+ # later. Otherwise we have to add them here ourselves.
+ if(CMAKE_VERSION VERSION_LESS 2.8.11)
+ include_directories("${gtest_SOURCE_DIR}/include"
+ "${gmock_SOURCE_DIR}/include")
+ endif()
+
+ add_executable(codecs src/codecs.cpp)
+ target_link_libraries(codecs FastPFOR)
+
+ add_executable(example example.cpp)
+ target_link_libraries(example FastPFOR)
+
+ add_executable(inmemorybenchmark src/inmemorybenchmark.cpp)
+ target_link_libraries(inmemorybenchmark FastPFOR)
+
+ add_executable(unit src/unit.cpp)
+ target_link_libraries(unit FastPFOR)
+ add_custom_target(check unit DEPENDS unit)
+
+ add_executable(FastPFOR_unittest
  unittest/test_composite.cpp
  unittest/test_driver.cpp
  unittest/test_fastpfor.cpp
  unittest/test_variablebyte.cpp)
-target_link_libraries(FastPFOR_unittest gtest FastPFOR)
-enable_testing()
-add_test("unit" unit)
-add_test("FastPFOR_unittest" FastPFOR_unittest)
-
+ target_link_libraries(FastPFOR_unittest gtest FastPFOR)
+ enable_testing()
+ add_test("FastPFOR_unittest" FastPFOR_unittest)
+endif()
 
 include(GNUInstallDirs)
 install(TARGETS FastPFOR
@@ -255,4 +256,4 @@ if(NOT CMAKE_VERSION VERSION_LESS 3.0.0)
 endif()
 configure_file("fastpfor.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/fastpfor.pc" @ONLY)
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/fastpfor.pc"
- DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+ DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")