Hi Matteo! I attempted building opencolorio in unstable using libimath-dev built from salsa [1]. opencolorio's dependencies pulled in libilmbase-dev which resulted in both trying to write to /usr/lib/x86_64-linux-gnu/libImath.so. I have no idea about these conflicting packages, but the conflict has to be resolved prior to moving on with opencolorio.
[1] https://salsa.debian.org/debian-phototools-team/imath.git, git commit 34613b6d98747a002890453bce8117985f9f81bb Best, Andrius
