cmakelists.txt怎么加载一个.cmake文件,并使用一个target
时间: 2023-11-30 09:52:10 浏览: 192
要加载一个.cmake文件并使用一个target,你可以在CMakeLists.txt文件中使用include()命令来加载另一个.cmake文件,然后使用target_include_directories()和target_link_libraries()命令来将目标与所需的库链接起来。
例如,假设你有一个名为my_library的目标,并且想要使用一个名为my_library_options.cmake的文件来设置一些选项。你可以将以下命令添加到CMakeLists.txt文件中来加载该文件并将选项应用于目标:
```
include(my_library_options.cmake)
target_include_directories(my_library PUBLIC ${MY_INCLUDE_PATH})
target_link_libraries(my_library PRIVATE ${MY_LIBS})
```
其中,my_library_options.cmake文件应该包含设置选项的命令,例如:
```
set(MY_INCLUDE_PATH "/usr/local/include")
set(MY_LIBS "mylib1" "mylib2")
```
注意,上述示例假设你已经定义了MY_INCLUDE_PATH和MY_LIBS变量。如果你没有定义这些变量,你需要根据你的实际情况进行修改。
相关问题
Building Tests requested, but Catch2 library not found. CMake Error at components/pango_core/CMakeLists.txt:38 (target_compile_features): target_compile_features The compiler feature "cxx_decltype_auto" is not known to CXX compiler "GNU" version 4.8.4. Call Stack (most recent call first): CMakeLists.txt:93 (include) CMake Error at components/pango_geometry/CMakeLists.txt:3 (find_package): Could not find a package configuration file provided by "Eigen3" with any of the following names: Eigen3Config.cmake eigen3-config.cmake Add the installation prefix of "Eigen3" to CMAKE_PREFIX_PATH or set "Eigen3_DIR" to a directory containing one of the above files. If "Eigen3" provides a separate development package or SDK, be sure it has been installed. Call Stack (most recent call first): CMakeLists.txt:93 (include) -- Configuring incomplete, errors occurred! See also "/home/slam-learn/projects/pangolin/build/CMakeFiles/CMakeOutput.log". See also "/home/slam-learn/projects/pangolin/build/CMakeFiles/CMakeError.log".
这是一个CMake构建时出现的错误,可能是由于缺少Catch2库和Eigen3库导致的。缺少Catch2库可能是因为您没有正确配置项目依赖项或没有正确安装该库。如果确实缺少Catch2库,您可以从官方网站上下载并安装它。缺少Eigen3库可能是因为CMake无法找到该库的配置文件,您可以将其安装到系统中或将其安装路径添加到CMAKE_PREFIX_PATH环境变量中。如果您已经安装了Eigen3库,您可以通过设置Eigen3_DIR变量来告诉CMake库的位置。
CMakeLists.txt加载第三方库
CMakeLists.txt可以通过定义变量INC_DIR和LINK_DIR来加载第三方库。INC_DIR用来指定头文件路径,而LINK_DIR用来指定库的路径。在CMakeLists.txt中,可以使用include_directories命令将INC_DIR添加到头文件搜索路径中,使用link_directories命令将LINK_DIR添加到库的搜索路径中。这样就可以在项目中使用第三方库了。如果需要生成自己的库,需要在CMakeLists.txt中导入第三方库的具体步骤如下:首先,使用find_package命令找到需要的库,例如find_package(wfdb REQUIRED)。然后,使用include_directories命令将找到的库的头文件路径添加到头文件搜索路径中。接下来,使用target_link_libraries命令将找到的库链接到目标库或可执行文件中,例如target_link_libraries(mylibrary wfdb)。最后,使用add_library命令生成自己的库,例如add_library(mylibrary SHARED mylibrary.cpp)。这样就完成了CMakeLists.txt加载第三方库的过程。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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