It totally sucks!? Ubuntu 16.04.3 no longer includes libts in its repository.? Would be sweet to have it available. Meanwhile, I would be grateful for guidance for the following setup: ??? - ubuntu has arm-linux-gnuabihf cross-compiler (target is acme systems Acqua -> SAMA5D31) ??? - ubuntu hosts debian Vagrant virtual box.? This provides Qt5.? Unfortunately the Vagrant virtual box file builds Qt5 without libts.? Also, libts is not in the O/S ??? - apt-search file libts.so.0 yields nothing.? (so apparently there's no libts in the repo.. yes I updated) I'd like to install libts-dev to allow building the Qt5 system supporting libts.? Additionally, with libts-dev, I can (presumably) cross-compile my Qt5 code for the target system. Not sure if I need a special ./configure to do this.. and especially not certain what LD flags I may need to seamlessly work with the debian system. Suggestions, aspirin, or sighs of resignation gratefully accepted.