This patch sets UNAME_S=Linux due to OpenWrt is always Linux but
`uname -s` return Darwin on MacOS and fails target build.

Signed-off-by: Sergey V. Lobanov <sergey@lobanov.in>

MIPS is completely unsupported.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

mips of any kind is not supported.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

The package does not support any mips archs, including mipsel.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>