Trouble installing powerDNS

[Ryan Schmidt]

On May 22, 2010, at 18:30, Scott Haneda wrote:

>>> Is it possible in a Portfile to describe the installation in a way that a distro is downloaded, unpacked, and only referenced, and then cleaned up when done?
>> 
>> Well yes, but only if the boost distfile were listed in your powerdns port. And this would cause the boost distfile to be downloaded again. So that's not optimal for all those users who already have boost downloaded and installe
> 
> Ok, got it. Hmm, with how long Boost takes to build, I am not sure the best thing to do.  I don't want users to have to build Boost at all, just get the include files they need.
> 
> Would it be appropriate to do something like:
> 
>    if boost is installed
>        -I/opt/local/include
>    else
>        download boost
>        -Ifiles/whatever-boost-downloads-as/
>    end if
> 
> Is that possible to do?  If it is possible, I will start looking at the docs for how, unless someone knows a port that does something similar that I can learn from.  Thanks.

Sounds possible. I doubt there's documentation on how to do this very specific thing.

I guess the code would run something like:

if ${prefix}/include/boost exists, do nothing

otherwise distfiles-append the boost distfile and configure.cppflags-append -I${worksrcpath}/boost-1.42.0

And you'd have to add the boost checksums and master_sites.