cmake 将中间文件放置到某个目录
我对 cmake 还很陌生，想知道如何使用 cmake 来做到这一点。我想将所有中间文件（如 .o 文件）放置在某个目录（例如“build”）中，然后一旦构建完成，我想复制我需要的某些文件（例如，.exe、. dll 就像最终产品一样）从构建目录到“stage”目录。如何指定这两个目录（构建和阶段）的路径？ Cmake 还将检查 build/stage 目录是否存在。如果不存在，它将为我创建目录。
任何帮助将不胜感激。
I am pretty new to cmake and wonder how I can do this is cmake. I want to place all the intermediate files (like the .o files) to be placed in a certain directory (say "build") and then once the build is done I want copy certain files I need (e.g., the .exe, .dll like the end product) from build directory to "stage" directory. how can I specify the path to these two directories (build and stage)? Cmake will also check if the build/stage directory exists or not. If does not exist, it will create the directories for me.
Any help will be appreciated.
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您问的是最常见的 CMake 用例。
要使整个构建过程发生在任意目录中，您应该从该目录运行
cmake /path/to/your/project（或使用 cmake-gui）。在您明确告诉 CMake 在那里输出一些文件之前，您的源目录将保持不变。
至于第 2 点：
您应该将
install()调用放入 CMakeLists.txt（请参阅有关install()的文档）并将 CMAKE_INSTALL_PREFIX 设置为您希望文件所在的目录被复制。之后，您可以从构建目录运行make install或cmake -P cmake_install.cmake来安装这些文件。What are you asking is the most often CMake use case.
To make whole build process to occur in arbitary dir, you should run
cmake /path/to/your/projectfrom that dir (or use cmake-gui).Your source dir would be untouched until you explicitly tell CMake to output some files there.
As for point 2:
You should place
install()invocations into your CMakeLists.txt (see documentation oninstall()) and set CMAKE_INSTALL_PREFIX to the dir where you wish files to be copied. After that you can runmake installorcmake -P cmake_install.cmakefrom your build dir to install these files.我建议采用另一种方法。
或者改为选择步骤 2 时，您还可以提供一个安装例程，其中所需的可执行文件安装在给定路径中。 参见此处
I would suggest another approach.
Or instead of choosing step 2 you also can provide an install routine where the needed executables are installed in a give path. see here