really fix cmake syntax this time
really fix cmake syntax this time

d-tk/dtk,d-tk/dtk,NicolasSchnitzler/dtk,d-tk/dtk,d-tk/dtk,rdebroiz/dtk,NicolasSchnitzler/dtk,d-tk/dtk,d-tk/dtk,rdebroiz/dtk,NicolasSchnitzler/dtk,rdebroiz/dtk,rdebroiz/dtk,NicolasSchnitzler/dtk