Re: buildlink3.mk newbie question

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

On Tue, 29 Nov 2005, Hugo Rivera wrote:

> I'm trying to figure out what a buildlink3.mk file
> exactly does. I'm not sure if there's always a need
> for this file to handle dependencies or not (I don't
> think so), but when do I need one? I readed the pkgsrc
> guide and it doesn't help me a lot, so thanks in
> advance.

To help make sure that builds are consistent no matter what you have 
already installed, pkgsrc uses a system it calls "buildlink3".

This creates a directory of symlinks and wrapper scripts and configuration 
and build steps are configured to use those files instead of what may be 
found on the system.

Many packages have buildlink3.mk files to help describe what that specific 
package provides to help other packages (that depend on it) to configure 
and build correctly.

You may also notice builtin.mk files. These are uses to check if native 
versions of headers, libraries and/or tools are good enough for pkgsrc 
builds.

You do not need a buildlink3.mk file unless another package depends on 
your package and uses it for include headers or libraries for example.

We can provide more details if you provide more specific examples of your 
need.

Good luck and have fun with your pkgsrc work.

 Jeremy C. Reed

                         technical support & remote administration
                         http://www.pugetsoundtechnology.com/


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