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From: Richard Purdie <richard.purdie@linuxfoundation.org>
To: Patches and discussions about the oe-core layer
	<openembedded-core@lists.openembedded.org>
Date: Wed, 28 Mar 2012 09:38:04 +0100
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Cc: Denys Dmytriyenko <denys@ti.com>
Subject: Re: [PATCH] bc: use update-alternatives to make dc play nice with busybox
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On Wed, 2012-03-28 at 02:11 -0400, Denys Dmytriyenko wrote:
> From: Denys Dmytriyenko <denys@ti.com>
> 
> busybox' default configuration enables dc app, which bc also provides,
> setup update-alternatives to resolve the conflict.
> 
> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> ---
>  meta/recipes-extended/bc/bc_1.06.bb |   13 +++++++++++--
>  1 files changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/meta/recipes-extended/bc/bc_1.06.bb b/meta/recipes-extended/bc/bc_1.06.bb
> index 02915e1..d8d8f4d 100644
> --- a/meta/recipes-extended/bc/bc_1.06.bb
> +++ b/meta/recipes-extended/bc/bc_1.06.bb
> @@ -11,11 +11,20 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f \
>  
>  SECTION = "base"
>  DEPENDS = "flex"
> -PR = "r0"
> +PR = "r1"
>  
>  SRC_URI = "${GNU_MIRROR}/bc/bc-${PV}.tar.gz"
>  
>  SRC_URI[md5sum] = "d44b5dddebd8a7a7309aea6c36fda117"
>  SRC_URI[sha256sum] = "4ef6d9f17c3c0d92d8798e35666175ecd3d8efac4009d6457b5c99cea72c0e33"
>  
> -inherit autotools
> +do_install_append () {
> +	mv ${D}${bindir}/dc ${D}${bindir}/dc.${PN}
> +}
> +
> +inherit autotools update-alternatives
> +
> +ALTERNATIVE_NAME = "dc"
> +ALTERNATIVE_LINK = "${bindir}/dc"
> +ALTERNATIVE_PATH = "${bindir}/dc.${PN}"
> +ALTERNATIVE_PRIORITY = "100"


I think you should just be able to do:

"""
ALTERNATIVE_LINKS = "${bindir}/dc"
ALTERNATIVE_PRIORITY = "100"

inherit autotools update-alternatives
"""

?

Cheers,

Richard