- Removed hacks to use standalone argp as upstream now detects it nicely.
- As we are already installing files, use files from PKG_INSTALL_DIR and
not PKG_BUILD_DIR
- Only changes Makefile.am as PKG_FIXUP:=autoreconf is in use
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>