Re: How to test the presence of packages ?

[fred0a@free.fr]

>
>
>Replacing "If none is installed then install package2 and package3" with
>"If none is installed then isntall package2", then the solution is:
>
>Depends: package2 | package1 | package3 | package4
>

OK.

>
>Replacing "If one of this list is already installed" with "If at least
>two out of this list are already installed"... then a simple Depends is
>not enough. Theoretically, one can solve the problem with virtual/dummy
>packages... but I think you'd better just expose your use case to
>understand what your problem is.

I am going to read this more in depth, thanks.