How to Unset A Cmake Property?

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To unset a cmake property, you can use the unset() command in CMake. This command allows you to remove a property that was previously set for a specific target or directory. By specifying the property name and the target or directory where it was set, you can effectively unset the property and revert it back to its default value or remove it entirely. This can be useful when you no longer need a certain property set for a target or if you want to reset it to its default state.


What is the fault of not erasing a cmake property in CMake configuration?

Not erasing a cmake property in CMake configuration can lead to unexpected behavior or errors in the build process. This can happen if the property is not properly reset or overridden by another property, potentially causing conflicts or inconsistencies in the build configuration. It is generally a good practice to ensure that all properties are properly managed and maintained to avoid any issues in the build process.


What is the command to unset a cmake property?

The command to unset a CMake property is:

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unset_property(TARGET target1 PROPERTY PROPERTY_NAME)


For example, to unset the property SOURCES from the target my_target, you would use:

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unset_property(TARGET my_target PROPERTY SOURCES)



What is the downside of not disabling a cmake property in CMake build?

One downside of not disabling a CMake property in a CMake build is that it may lead to unexpected behavior or errors in the build process. Certain properties may be enabled by default and may conflict with other settings or configurations in the project. This can result in build failures, undefined behavior, or incorrect build outputs. Disabling a property ensures that it is not inadvertently impacting the build process and allows for more control over the build configuration.


How to delete cmake property in CMake script?

To delete a property in a CMake script, you can use the UNSET command. Here's an example:

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# Delete a property
unset(SOME_PROPERTY CACHE)


This will remove the SOME_PROPERTY property from the cache. You can also unset a property for a specific target by using the TARGET_PROPERTY command:

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# Delete a property for a specific target
unset_target_properties(my_target PROPERTIES SOME_PROPERTY)


You can also use the SET_PROPERTY command to delete a property by setting it to an empty value:

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# Delete a property by setting it to empty value
set_property(TARGET my_target PROPERTY SOME_PROPERTY "")


These methods can be used to delete properties from targets or variables in a CMake script.


What is the consequence of ignoring a cmake property in C++ code?

Ignoring a CMake property in C++ code could result in incorrect or unexpected behavior when building the code with CMake. This could lead to build errors, linker errors, or runtime errors in the compiled executable. It is important to ensure that all necessary CMake properties are properly set to ensure that the code builds and functions correctly.


What is the result of eliminating cmake property in makefile?

Eliminating the cmake property in a makefile would most likely cause errors or failures when attempting to build or compile the project with the Makefile. This is because the cmake property is used to configure and generate the necessary build files for the project using the CMake build system. Without this property, the Makefile would not have the necessary information to properly compile the project.

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