CMake recipes does not build anymore on ubuntu 18.04

On host Ubuntu 18.04 x86_64:

Building openjpeg or srt results in error:

CMake Error: The source directory "/home/scerveau/DEV/tmp/cerbero/build/sources/linux_x86_64/openjpeg-2.3.1/_builddir" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.