[Buildroot] [PATCH 1/4] libpcap: update static handling

[Mike Frysinger]

On Monday, January 24, 2011 11:25:25 Peter Korsgaard wrote:
> >>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni at free-electrons.com> 
writes:
>  Thomas> Hello,
>  Thomas> Completely unrelated to Mike's change, but still spotted while
> looking Thomas> at the patch context:
> 
>  Thomas> On Wed, 19 Jan 2011 22:10:29 -0500
> 
>  Thomas> Mike Frysinger <vapier at gentoo.org> wrote:
>  >> LIBPCAP_CONF_ENV:=ac_cv_linux_vers=$(firstword $(subst
>  >> .,$(space),$(firstword $(call qstrip,$(BR2_DEFAULT_KERNEL_HEADERS)))))
>  >> \
> 
>  Thomas> Both libpcap and tcpdump use this and I never noticed, but this
>  Thomas> is completely broken with external toolchains and the
>  Thomas> Crosstool-NG backend, since BR2_DEFAULT_KERNEL_HEADERS is only
>  Thomas> set with internal toolchains.
> 
>  Thomas> I haven't thought of what the right fix would be, but it's
> definitely Thomas> not that one.
> 
> True. The question is why they need this info? Perhaps we can just lie
> and simply say 2.6.x?

ive noticed this in all my builds, but ive just ignored it.  it isnt a matter 
of picking "linux 2.6" over "linux 2.4".  you simply need to pick linux-2.x 
over linux-1.x or linux-0.x.  we've long used this in Gentoo/uclinux-dist:
	export ac_cv_linux_vers=2
-mike
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