Re: [gentoo-dev] use foo && bar vs. [ `use foo` ] && bar

[Ciaran McCreesh <ciaranm@gentoo.org>]

[-- Attachment #1: Type: text/plain, Size: 1079 bytes --]

On Mon, 19 Jul 2004 18:33:49 +0100 Tom Knight <tomk@gentoo.org> wrote:
| Back on topic, I've searched for this on bugzilla, and didn't find
| anything, but I'm sure it's come up on the forums before. There are
| several ebuilds which have something along the lines of:
| 
| use foo && bar

This is correct.

| Which executes bar if the foo USE flag is set, the problem is that the
| use function not only returns true when the USE flag is set it also
| echos the flag to stdout. When you emerge something you end up with
| loads of use flags outputted.

This is about to change. In the future use will be silent and usev (?
can't remember whether it's a v...) will output.

| The solution is to do it like this:
| 
| [ `use foo` ] && bar

Don't do that.

| I'm going have a go at fixing some of the net-mail packages, if others
| can do the same taht would be great.

Don't. You'll just have to un'fix' it again later :)

-- 
Ciaran McCreesh : Gentoo Developer (Sparc, MIPS, Vim, Fluxbox)
Mail            : ciaranm at gentoo.org
Web             : http://dev.gentoo.org/~ciaranm


[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]