Mlt++ development package not found

[Jago]

I am treading water here, doing my best to learn to compile Shotcut from the source code.

I got to where I could do the
qmake PREFIX=/usr/local/
make -j8
make install

I got to the point of ‘make install’ but then hit a roadblock:

Project ERROR: mlt++ development package not found
make: *** [Makefile:84: sub-src-install_subtargets] Error 3

How can I resolve this so I can compile Shotcut from source on my system? I found mlt++

MLT - Home

and see it is on github but it is source code there, not a .deb. I am running MX LInux x64 (current version). Synaptic does not show mlt++ development, and the only mlt++ development I found online were .rpm packages.

[shotcut]

What is the "official" way of building in 2020?

Shotcut builds do use industry standard tools, but there is no industry standard way to build a C++ project with all of its dependencies across most Linux distributions as well as macOS that is not based strictly on a package system. Yes, there are some things you can do with CMake and Conan, but with just as much as work as this script in my experience. All you really need to hack on Shotcut is a rather complete installation of MLT and frei0r based on their latest release versions and Qt 5.12 …

[Jago]

Thank you. I finally was able to get the dependencies, including mlt++, installed on my linux system (mostly by learning about test repos and flatpak and using those to install some shotcut dependencies, Qt Creator, etc.