Generated docset missing "docSet.dsidx" database

Hi everyone,

I am trying to generate a valid docset on Linux/Ubuntu, but it seems the
output
is missing the SQLlite database. I known that doxygen requires the
`docsetutil`
utility (provided only with Xcode); is that program responsible for
setting up
the database? And if yes, does doxygen provide any alternative to generate a
valid docset on Linux/Ubuntu?

I am using Doxygen ver. 1.8.14, but I also tried with ver. 1.8.4.

Thank you!


Best regards,
Lorenzo Casalino