Fix installation error

ln will complain that the link already exists and will error.
Adding the -f flag, force ln to recreate the link without failing the
build.

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Remove prefix hack in configure

This dirty path hack messes up cross compilation and make it fail.
If a build fails because of badly set up paths, it should be fixed by
the end users.
Maybe a FAQ entry would be nice.

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
libiconv.m4: Fix AM_ICONV macro usage

This patch come straight from the Buildroot source tree.

Signed-off-by: Bernd Kuhls <berndkuhls@hotmail.com>
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>