The -h. option for CMake stands for "help" and is used to display a list of available command-line options and their descriptions. When you use the -h. option in the terminal with the cmake command, it will provide you with a brief overview of the different flags and arguments that can be used with CMake, helping you understand how to use the tool more effectively. This can be particularly useful for beginners or those who are new to using CMake, as it provides a quick reference guide for navigating the command line interface and accessing the various features and functionalities of the tool.
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How to enable or disable certain features using the -h flag in Cmake?
In CMake, the -h flag is used to show the help message that lists all available command line options. To enable or disable certain features using the -h flag, you will need to refer to the help message to find out the specific options that can be used to toggle those features.
For example, if you want to enable a specific feature such as using a certain compiler, you would need to look for the option in the help message that pertains to selecting a compiler. Then, you can use that option along with the appropriate flag to enable that feature.
Similarly, if you want to disable a feature like building a certain component, you would need to find the option in the help message related to excluding that component from the build process. You can then use that option with the appropriate flag to disable that feature.
Overall, the -h flag in CMake provides a comprehensive list of command line options that you can use to customize the build process and enable or disable certain features as needed.
What are the different ways to utilize the -h option in Cmake?
- Display the help message: The -h option can be used to display the help message in CMake. This will show a list of available command line options and their descriptions.
- Specify the build directory: By using the -h option, you can specify the build directory for CMake. This allows you to separate the source code and the build files.
- Generate a help file: The -h option can be used to generate a help file containing information about the CMake options and commands. This file can be used as a reference for future builds.
- Include additional help files: You can use the -h option to include additional help files in your CMake project. This can be useful for sharing information with other developers or documenting specific features.
- Enable or disable certain features: The -h option can also be used to enable or disable certain features in CMake. For example, you can use it to enable or disable certain compiler flags or optimizations.
Overall, the -h option in CMake is a versatile tool that can be used in various ways to customize and optimize your build process.
What is the default behavior of Cmake when the -h flag is used?
When the -h flag is used with CMake, it displays a brief help message with information on how to use the command line options. It provides a list of the available command line options and a brief description of each option.
