How to specify dependencies that aren't included in the target

I am using a linking script to link the project I am working on, and therefore need the script to be a dependency of the target (in order to generate it via some custom scripts at each build). However, it will not be included in the target, and boost-build does not, to my knowledge, know what to do with it. How to I make it a dependency of the final target without boost-build trying to include it in the target.

Thank you in advance for your help,

Paul


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