这是一个不寻常的案例;大多数项目指定安装规则。
CMake的ExternalProject_Add
模块也许是这份工作的最佳工具。这允许您从项目中下载,配置和构建gtest,然后链接到gtest库。
我已经测试了以下的CMakeLists.txt在Windows上使用Visual Studio 10和11,以及锵3.2 Ubuntu的使用GCC 4.8和 - 它可能需要调整其他平台/编译器:
cmake_minimum_required(VERSION 2.8.7 FATAL_ERROR)
project(Test)
# Create main.cpp which uses gtest
file(WRITE src/main.cpp "#include \"gtest/gtest.h\"\n\n")
file(APPEND src/main.cpp "TEST(A, B) { SUCCEED(); }\n")
file(APPEND src/main.cpp "int main(int argc, char **argv) {\n")
file(APPEND src/main.cpp " testing::InitGoogleTest(&argc, argv);\n")
file(APPEND src/main.cpp " return RUN_ALL_TESTS();\n")
file(APPEND src/main.cpp "}\n")
# Create patch file for gtest with MSVC 2012
if(MSVC_VERSION EQUAL 1700)
file(WRITE gtest.patch "Index: cmake/internal_utils.cmake\n")
file(APPEND gtest.patch "===================================================================\n")
file(APPEND gtest.patch "--- cmake/internal_utils.cmake (revision 660)\n")
file(APPEND gtest.patch "+++ cmake/internal_utils.cmake (working copy)\n")
file(APPEND gtest.patch "@@ -66,6 +66,9 @@\n")
file(APPEND gtest.patch " # Resolved overload was found by argument-dependent lookup.\n")
file(APPEND gtest.patch " set(cxx_base_flags \"\${cxx_base_flags} -wd4675\")\n")
file(APPEND gtest.patch " endif()\n")
file(APPEND gtest.patch "+ if (MSVC_VERSION EQUAL 1700)\n")
file(APPEND gtest.patch "+ set(cxx_base_flags \"\${cxx_base_flags} -D_VARIADIC_MAX=10\")\n")
file(APPEND gtest.patch "+ endif()\n")
file(APPEND gtest.patch " set(cxx_base_flags \"\${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32\")\n")
file(APPEND gtest.patch " set(cxx_base_flags \"\${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN\")\n")
file(APPEND gtest.patch " set(cxx_exception_flags \"-EHsc -D_HAS_EXCEPTIONS=1\")\n")
else()
file(WRITE gtest.patch "")
endif()
# Enable ExternalProject CMake module
include(ExternalProject)
# Set the build type if it isn't already
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif()
# Set default ExternalProject root directory
set_directory_properties(PROPERTIES EP_PREFIX ${CMAKE_BINARY_DIR}/ThirdParty)
# Add gtest
ExternalProject_Add(
googletest
SVN_REPOSITORY http://googletest.googlecode.com/svn/trunk/
SVN_REVISION -r 660
TIMEOUT 10
PATCH_COMMAND svn patch ${CMAKE_SOURCE_DIR}/gtest.patch ${CMAKE_BINARY_DIR}/ThirdParty/src/googletest
# Force separate output paths for debug and release builds to allow easy
# identification of correct lib in subsequent TARGET_LINK_LIBRARIES commands
CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_ARCHIVE_OUTPUT_DIRECTORY_DEBUG:PATH=DebugLibs
-DCMAKE_ARCHIVE_OUTPUT_DIRECTORY_RELEASE:PATH=ReleaseLibs
-Dgtest_force_shared_crt=ON
# Disable install step
INSTALL_COMMAND ""
# Wrap download, configure and build steps in a script to log output
LOG_DOWNLOAD ON
LOG_CONFIGURE ON
LOG_BUILD ON)
# Specify include dir
ExternalProject_Get_Property(googletest source_dir)
include_directories(${source_dir}/include)
# Add compiler flag for MSVC 2012
if(MSVC_VERSION EQUAL 1700)
add_definitions(-D_VARIADIC_MAX=10)
endif()
# Add test executable target
add_executable(MainTest ${PROJECT_SOURCE_DIR}/src/main.cpp)
# Create dependency of MainTest on googletest
add_dependencies(MainTest googletest)
# Specify MainTest's link libraries
ExternalProject_Get_Property(googletest binary_dir)
if(MSVC)
set(Suffix ".lib")
else()
set(Suffix ".a")
set(Pthread "-pthread")
endif()
target_link_libraries(
MainTest
debug ${binary_dir}/DebugLibs/${CMAKE_FIND_LIBRARY_PREFIXES}gtest${Suffix}
optimized ${binary_dir}/ReleaseLibs/${CMAKE_FIND_LIBRARY_PREFIXES}gtest${Suffix}
${Pthread})
如果在空目录中创建这个作为的CMakeLists.txt(比如MyTest
),则:
cd MyTest
mkdir build
cd build
cmake ..
这应该MyTest/src
创建一个基本的main.cpp和(在Windows MyTest/build/Test.sln
)创建一个项目文件
当您构建项目时,它应该将gtest源下载到MyTest/build/ThirdParty/src/googletest
,并在MyTest/build/ThirdParty/src/googletest-build
中构建它们。然后,您应该能够成功运行MainTest目标。
对我来说似乎很复杂。有没有办法直接引用谷歌测试CMakeLists.txt文件?或者,我应该将googletest库作为子目录添加吗? – Korchkidu 2012-03-14 07:03:59
我不认为它比将googletest作为子目录添加得复杂得多,但如果您有选择,那么请确保 - 将googletest作为源代码树的子目录添加并通过“ADD_SUBDIRECTORY”将其拉入。 (你确实指出这不是你原来的问题中的一个选项)。 – Fraser 2012-03-14 10:31:44
是的,确实如此。我想使用更好的解决方案。但是一个子目录似乎比你提供的解决方案更好,更清洁......但是我只是从CMake世界开始......; – Korchkidu 2012-03-14 12:08:10