[Buildroot] [PATCH] perf: libelf is required to compile perf

[Andi Shyti <andi@etezian.org>]

Hi Thomas,

> > Point this out in the related Config.in in the perf directory.
> >
> > Mute the following error by selecting BR2_PACKAGE_LIBELF:
> >
> > The perf tool in your kernel cannot be built without libelf.
> > Either upgrade your kernel to >= 3.7, or enable the elfutils package.
> > make: *** [/home/andi/repo/buildroot-snowball/output/build/perf-stable-linux-ux500-3.4/.stamp_built] Error 1
> 
> This doesn't look right. As the error indicates, if your kernel is
> recent enough you don't need libelf.

I was compiling for snowball which has an old Kernel as default,
that's why I got the error.

> Have you tried enabling libelf manually?

By enabling it manually it works. If the patch doesn't look
right, feel free to ignore it.

Thanks,
Andi