Swift_MODULE_DIRECTORY — CMake 3.31.3 Documentation

# Swift_MODULE_DIRECTORY

Added in version 3.15.

Specify output directory for Swift modules provided by the target.

If the target contains Swift source files, this specifies the directory in which the modules will be placed. When this property is not set, the modules will be placed in the build directory corresponding to the target's source directory. If the variable `CMAKE_Swift_MODULE_DIRECTORY` is set when a target is created its value is used to initialize this property.

Warning

This property does not currently provide a way to express per-config module directories, so use with multi-config generators is problematic:

- The `Xcode` generator does not implement the property at all.

- The `Ninja Multi-Config` generator implements this property, but module files generated for different build configurations have the same path, which can lead to subtle problems when building more than one configuration.