[Buildroot] external toolchain and sysroot

[Grant Edwards]

On 2010-03-25, Yury Luneff <bitterman at ya.ru> wrote:
> i've fixed uemacs makefile.
>
> And the other problem was not with openvpn but with vsftpd which .mk did 
> not include "${TARGET_LDFLAGS}" at all.
>
> It seem to be a common problem in buildroot for now.

Based on my sample of three packages (two had the problem), I'm
guessing it's a very common problem.  It looks like the buildroot
developers use external toolchains that don't require a --sysroot
option.  I don't know why that is, since external toolchains get
copied into staging before they are used.  That implies that they
won't work without a --sysroot option...

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