Posts (page 60)
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6 min readIn CMake, you can specify the location of a package by setting the CMAKE_PREFIX_PATH variable. This variable should be set to the directory where the package is installed. Alternatively, you can use the find_package() function and pass the path to the package as an argument. This will tell CMake where to look for the package when configuring the project.
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2 min readTo get the filename of the current file in CMake, you can use the CMAKE_CURRENT_LIST_FILE variable. This variable contains the full path to the CMake script file that is currently being processed. You can access the filename of the current file by using the FILENAME component of the CMAKE_CURRENT_LIST_FILE variable. For example: message("Current file name: ${CMAKE_CURRENT_LIST_FILE}") This will print out the full path of the current CMake script file being processed.
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5 min readTo use CMake in a virtual environment, you first need to create a virtual environment using a tool like virtualenv or conda. Once your virtual environment is activated, you can install CMake using a package manager like pip or conda. Then, you can run CMake commands as you would in a regular environment, but they will only affect the virtual environment's dependencies and not the system-wide installation.
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5 min readTo specify a Python package in CMake, you can use the FindPython module in CMake to locate the Python interpreter and its libraries. Once Python is found, you can use the find_package command to include the package in your CMake project. This will allow you to use Python code within your CMake project and interact with Python modules and packages. Remember to set the Python_ADDITIONAL_VERSIONS variable if you need to target a specific version of Python.
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5 min readTo set environment variables in CMake, you can use the set command with the ENV argument. For example, you can set the MY_VARIABLE environment variable to a specific value by using set(ENV{MY_VARIABLE} "value"). You can also specify multiple environment variables by using multiple set commands with different variable names. These environment variables will be available to the CMake scripts and any processes that are spawned by CMake during the build process.
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5 min readTo add dependencies between projects in CMake, you can use the target_link_libraries() function. This function specifies libraries or targets that should be linked to a specific target during the build process. This allows you to define dependencies between different projects within your CMake configuration.For example, if you have a project A that depends on project B, you can use target_link_libraries(targetA PUBLIC targetB) to specify that project A depends on project B.
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5 min readTo include third party tools with CMake, you first need to locate the third party tool that you want to include in your project. Once you have identified the tool, you can either download the source code or an already built binary of the tool.Next, you need to specify the location of the third party tool in your CMakeLists.txt file.
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5 min readTo build a Python extension module with CMake, you first need to create a CMake file that defines the module's build settings and dependencies. This file should include directives to find the Python interpreter and include directories, as well as any external libraries or headers that your module depends on.Next, you will write the C or C++ code for your extension module. This code will implement the functionality of your module and define any Python bindings using the Python C API.
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4 min readTo duplicate a CMake target in your project, you can use the add_custom_target or add_executable command along with the add_dependencies command to create a new target that depends on the original target. This way, when you build the new target, the original target will also be built as a dependency. You can also use the add_custom_command command to execute custom commands or scripts as part of the new target's build process.
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8 min readTo run an executable file from CMake in Python, you can use the subprocess module. First, you need to use CMake to build the executable file, then you can use the subprocess.run() function to execute it.Here's an example of how you can do it: import subprocess # Build the executable file using CMake subprocess.run(['cmake', 'path_to_your_project']) subprocess.run(['make']) # Run the executable file subprocess.run(['.
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5 min readTo include .spt files in CMake, you can use the include directive in your CMakeLists.txt file. Simply add a line that includes the path to the .spt file that you want to include. You can also use variables to store the path to the file and include that variable in your CMakeLists.txt file. Additionally, you can use the set_source_files_properties command to set properties for the .spt file, such as the language it is written in. This will ensure that the .
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5 min readIn CMake, it is possible to specify a major version constraint when requiring a particular version of a package or library. This is done by setting the required version in the find_package command.For example, if you only want to match the major version of a library, you can specify it like this: find_package(MyLibrary 2 REQUIRED) In this case, CMake will search for a version of "MyLibrary" that has a major version of 2, but it will allow any minor or patch version.