Re: [gentoo-portage-dev] DB and binary dependency

[tvali]

On 23/03/06, Alec Warner <antarus@g.o> wrote:
> tvali wrote:
> > Can someone tell me, which portage python commands should be used or
> > which kind of file created, if i'm going to test this idea? -- in
> > beginning, i would like to just add simple deps - are ebuilds the only
> > place to change and is there any clear doc of them [as i wouldnt like to
> > go through them all to be sure that there is no rarely used things i
> > dont know]?
> >
> > Also, where i can find relations between useflags and c/c++ #defines?
>
> USE flags technically have anything to do with C++ defines; they can
> technically enable/disable any optional support ( docs, plugins, etc.. )
> Usually USE flags interact with a packages build system (configure or
> whatnot)
>

In c++ code, use flags must definitely have something to do with
#defines. Otherwise they couldnt do what they do -- so
uflags=>buildsys=>defines.

Configure, for example, will define set of #defines.

Ok, your answer at least shows that this relation is not as simple and
clear as i would like it :)

Where i could see some useflag actually interacting with build? Where
i see that line which makes it so that if i define "gtk", gtk support
will be added to makefile?

--
tvali

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aircraft building progress by weight. -Bill Gates

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and wrong. -H L Mencken

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when something works, but you don't know why. Programmers combine
theory and practice: Nothing works and they don't know why.

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