How to export compile commands?

Development
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1

Hi clangd depends on the compile_commands.json file to work but I can’t generate it by setting the CMAKE_EXPORT_COMPILE_COMMANDS flag like below.

cmake -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=ON Slicer-SuperBuild-Debug/
2

I just needed to run make as well and the file was generated.