Question

我刚刚在项目的libs/gtest-1.6.4目录中添加了google-test源代码。有一个libs/gtest-1.6.4/CMakeLists.txt文件。在最顶层的CMakeLists.txt中，我添加了add_subdirectory('libs/gtest-1.6.4')。项目的结构是

|- CMakeLists.txt 
|- src 
   |- CMakeLists.txt 
   |- *.h and *.cc 
|- libs
   |- gtest-1.6.4
      |- CMakeLists.txt
      |- gtest source code etc.
|- other subdirectories

现在我在其中一个头文件中添加#include "gtest/gtest.h"。编译失败，

gtest/gtest.h: No such file or directory
compilation terminated.

以下是我的src/CMakeLists.txt文件的摘要。

set( Boost_USE_STATIC_LIBS ON )
find_package( Boost COMPONENTS graph regex system filesystem thread REQUIRED)

.. Normal cmake stuff ...
INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS} )

# This line is added for google-test
INCLUDE_DIRECTORIES(${GTEST_INCLUDE_DIRS} ${COMMON_INCLUDES})

add_executable(Partitioner
  print_function.cc
  methods.cc
  partitioner.cc
  main.cc
  )

TARGET_LINK_LIBRARIES(Partitioner ${Boost_LIBRARIES})
TARGET_LINK_LIBRARIES(Partitioner ${GTEST_LIBRARIES})

我错过了什么？

Answer 1

查看GTest's CMakeLists.txt，其包含路径似乎为${gtest_SOURCE_DIR}/include。他们还将库定义为名为gtest的CMake目标（它包含在当前第70行的宏cxx_library(gtest ...)中）。

所以看起来你需要这样做：

...
# This line is added for google-test
INCLUDE_DIRECTORIES(${GTEST_INCLUDE_DIRS} ${COMMON_INCLUDES})
INCLUDE_DIRECTORIES(${gtest_SOURCE_DIR}/include ${COMMON_INCLUDES})
...
TARGET_LINK_LIBRARIES(Partitioner ${Boost_LIBRARIES})
TARGET_LINK_LIBRARIES(Partitioner ${GTEST_LIBRARIES})
TARGET_LINK_LIBRARIES(Partitioner ${Boost_LIBRARIES} gtest)

您还必须确保在您的根CMakeLists.txt中，您已经在 add_subdirectory(libs/gtest-1.6.4)之前调用了add_subdirectory(src) ，以便在它们出现时正确设置GTest变量'正在“src / CMakeLists.txt”中使用。

将google-test添加到CMake项目中的子文件夹

1 个答案: