CMake 3。X

CMake 3。X提供了一个“干净”的目标。

cmake --build C:/foo/build/ --target clean

来自3.0.2版本的CMake文档:

--clean-first  = Build target 'clean' first, then build.
                 (To clean only, use --target 'clean'.)

CMake 2。X

在cmake版本2中没有cmake clean。X

我通常在一个类似“build”的文件夹中构建项目。如果我想弄清楚，我可以rm -rf构建。

在与根目录“CMakeLists.txt”相同的目录中的“build”文件夹通常是一个不错的选择。要构建你的项目，你只需要把CMakeLists.txt文件的位置作为参数给cmake。例如:cd <location-of-cmakelists>/build && cmake…(从@ComicSansMS)

CMake官方常见问题解答说明:

Some build trees created with GNU autotools have a "make distclean" target that cleans the build and also removes Makefiles and other parts of the generated build system. CMake does not generate a "make distclean" target because CMakeLists.txt files can run scripts and arbitrary commands; CMake has no way of tracking exactly which files are generated as part of running CMake. Providing a distclean target would give users the false impression that it would work as expected. (CMake does generate a "make clean" target to remove files generated by the compiler and linker.) A "make distclean" target is only necessary if the user performs an in-source build. CMake supports in-source builds, but we strongly encourage users to adopt the notion of an out-of-source build. Using a build tree that is separate from the source tree will prevent CMake from generating any files in the source tree. Because CMake does not change the source tree, there is no need for a distclean target. One can start a fresh build by deleting the build tree or creating a separate build tree.

我在谷歌上搜索了大约半个小时，我想到的唯一有用的东西是调用find实用程序:

# Find and then delete all files under current directory (.) that:
#  1. contains "cmake" (case-&insensitive) in its path (wholename)
#  2. name is not CMakeLists.txt
find . -iwholename '*cmake*' -not -name CMakeLists.txt -delete

此外，确保在此之前调用make clean(或您正在使用的任何CMake生成器)。

:)

这是我用的。它被包装在一个函数中，它是跨平台的，它演示了如何找到匹配的文件名或文件夹名，以防你想做任何简单的调整。这个函数在我每次构建脚本时都运行，并且完美地满足了我的需求。

function(DELETE_CACHE)
    if(CMAKE_HOST_WIN32)
        execute_process(COMMAND cmd /c for /r %%i in (CMakeCache.*) do del "%%i" WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
        execute_process(COMMAND cmd /c for /d /r %%i in (*CMakeFiles*) do rd /s /q "%%i" WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
    else()
        execute_process(COMMAND find . -name "CMakeCache.*" -delete WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
        execute_process(COMMAND "rm -rf `find . -type d -name CMakeFiles`" WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
    endif()
endfunction()

清除cmake构建输出:

命令行:

$ rm -rf [folder that you builded the project]/
$ cmake --build .

Cmake:

cmake --build . --target clean

创建一个临时构建目录，例如build_cmake。因此所有的构建文件都在这个文件夹中。

然后在主CMake文件中添加以下命令。

add_custom_target(clean-all
    rm -rf *
)

因此，在编译时

cmake ..

和清洁做:

make clean-all