From mboxrd@z Thu Jan  1 00:00:00 1970
From: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Date: Fri, 8 Mar 2019 19:16:20 +0100
Subject: [U-Boot] [U-Boot,
	v2] Enable expression support for CONFIG_BOARD_SIZE_LIMIT
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Philipp Tomsich <philipp.tomsich@theobroma-systems.com> schrieb am Fr., 8.
M=C3=A4rz 2019, 18:53:

>
>
> > On 08.03.2019, at 18:28, Martin Husemann <martin@NetBSD.org> wrote:
> >
> > On Fri, Mar 08, 2019 at 12:17:09PM -0500, Tom Rini wrote:
> >> OK, so a few thoughts here.
> >> - What's the portable way to do hex-based math?  If we really need it?
> >
> > Use printf(3) to convert to/from hex, and standard shell arithmetic
> > with $(( )).
> >
> > Looks horrible, but something like:
> >
> > v=3D$(( $( printf "%d\n" 0xa0 ) + $( printf "%d\n" 0x10 ) ))
> > printf "v =3D %d (%x)\n" $v $v
>
> Can we just assume that awk is available?  After all, AWK is defined
> in the top-level Makefile...
>

I guess we can, but see Toms mail from mid of December: not all awk
flavours seem to supper hey numbers. So I guess the next round on this
patch should try to test different shells as well as different awk's...

Regards,
Simon