I want add to build "packagegroup-core-buildessential" that contain:

#
# Copyright (C) 2007 OpenedHand Ltd.
# Copyright (C) 2012 Red Hat, Inc.
#

SUMMARY = "Essential build dependencies"

inherit packagegroup

RDEPENDS_packagegroup-core-buildessential = "\
autoconf \
automake \
binutils \
binutils-symlinks \
cpp \
cpp-symlinks \
gcc \
gcc-symlinks \
g++ \
g++-symlinks \
gettext \
make \
libstdc++ \
libstdc++-dev \
libtool \
pkgconfig \
"

But most packages return the incompatible license error to me.
How can I add other licenses among those allowed?