Re: st: Dependencies in Stata ado-packages

[Joerg Luedicke <joerg.luedicke@gmail.com>]

I am not sure if there is a convention for this. What I do in a
program that I am currently writing is to include a check whether the
desired function can be found in the Mata library and print out an
error message if not, suggesting to install -moremata- from SSC. So I
am using the -moremata- function -mm_which()- and my ado code reads

capt mata mata which mm_which()
if _rc {
    di as error "mm_which() from -moremata- is required; type -ssc
install moremata- to obtain it"
    exit 499
}

which I think saw in a similar form before in a program written by Ben
Jann (the author of -moremata-).

Joerg


On Mon, Jun 18, 2012 at 6:39 PM, Brendan Halpin <brendan.halpin@ul.ie> wrote:
> Is there any mechanism for dealing with the situation where one
> user-written package depends on another?
>
> If no mechanism, is there a convention?
>
> More concretely: I have a package which uses mm_expand() from moremata.
> Is there a way of making -net install mypackage- check for the presence
> of moremata and install it if it is missing? If not, is there a standard
> way to bring it to the user's attention?
>
> Brendan
> --
> Brendan Halpin,   Department of Sociology,   University of Limerick,   Ireland
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