RULE_LAUNCH_CUSTOM

From Get docs
Cmake/docs/3.21/prop dir/rule launch custom


RULE_LAUNCH_CUSTOM

Specify a launcher for custom rules.

See the global property of the same name for details. This overrides the global property for a directory.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.21/prop_dir/RULE_LAUNCH_CUSTOM.html