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From: Phil Blundell <pb@pbcl.net>
To: Bogdan Marinescu <bogdan.a.marinescu@intel.com>
Date: Thu, 09 May 2013 14:20:05 +0100
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Cc: openembedded-core@lists.openembedded.org
Subject: Re: [PATCH] eglibc: include libgcc when libpthread is enabled
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On Thu, 2013-05-09 at 15:55 +0300, Bogdan Marinescu wrote:
>  # nptl needs libgcc but dlopens it, so our shlibs code doesn't detect this
> -#RDEPENDS_${PN} += "${@['','libgcc']['nptl' in '${GLIBC_ADDONS}']}"
> +RDEPENDS_${PN} += "${@['','libgcc']['nptl' in '${GLIBC_ADDONS}']}"

Wow, it seems like this has been broken since 2008 and nobody noticed.
That line was commented out in oe-classic e96e82cd without any real
explanation and it's been that way ever since.

That said, forcing libgcc into RDEPENDS_${PN} unconditionally like this
is suboptimal, because programs that don't link -lpthread (or possibly
even programs that do, if they don't use cancellation) still don't need
libgcc.  With this change it will be impossible to avoid getting libgcc
in an image, which will be a loss for those trying to build small images
with single threaded programs.

p.