Re: [gentoo-dev] Detecting gcj in ebuilds

[Olivier Crête]

Hey,

On Thu, 2004-11-11 at 21:57 +0900, Jason Stubbs wrote:
> So.. semantics. Example time. :)
>
> #1
> foo:DEPEND="baz[use]"
> baz is installed with -use
>
> "emerge foo" results in:
> baz[use]
> foo

The end result should be baz with the flag matching make.conf
+package.use .. so it should probably be (if the system was consistent
before the merge)...

baz[use]
foo
baz[-use]

Or maybe using a quickpkg like approach to save the pre-existing
baz[-use] 

> #4
> foo:DEPEND="baz[use]"
> foo:RDEPEND=""
> bar:DEPEND="baz[-use]"
> bar:RDEPEND=""
> baz is installed with -use
>
> "emerge foo bar" or "emerge bar foo" results in:
> bar
> baz[use]
> fooz

Same comment as #1

> #6
> foo:DEPEND="use? bar[use]"
> bar:DEPEND="use? foo[use]"
>
> "emerge foo bar" or "emerge bar foo" results in:
> bar
> foo[use]
> bar[use]
> --or--
> foo
> bar[use]
> foo[use]

Aren't circular deps forbidden anyway?

#7
foo: RDEPEND=baz[use]
baz is installed -use (because package.use says so)

"emerge foo" says:
NOOO! conflict

#8
same as above with DEPEND

"emerge foo" should probably do:
baz[-use]
foo
baz[use]

Again a quickpkg like approach would become necessary..

-- 
Olivier Crête
tester@g.o
Gentoo Developer