# Copyright 2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

DESCRIPTION="The libxdp library and various tools for use with XDP"
HOMEPAGE="https://github.com/xdp-project/xdp-tools"
SRC_URI="https://github.com/xdp-project/${PN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"

LICENSE="GPL-2 LGPL-2.1 BSD-2"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~x86"

IUSE="+doc +tools"

DEPEND="dev-libs/libbpf:=
	sys-libs/zlib
	net-libs/libpcap
	virtual/libelf"
RDEPEND="${DEPEND}"
BDEPEND=">=sys-devel/clang-10.0.0
	doc? ( app-editors/emacs )"

# Not prebuilt -- we build them -- but they're not ordinary ELF objects either.
QA_PREBUILT="usr/lib/bpf/*.o"

MAKEOPTS+=" V=1"

src_configure() {
	export PRODUCTION=1
	export DYNAMIC_LIBXDP=1
	export FORCE_EMACS=$(usex doc 1 0)
	use doc || export EMACS=false
	export FORCE_SYSTEM_LIBBPF=1
	default
	{
		echo "PREFIX := ${EPREFIX}/usr"
		echo "LIBDIR := \$(PREFIX)/$(get_libdir)"
		echo "BPF_OBJECT_DIR := \$(PREFIX)/lib/bpf"
	} >> config.mk
}

src_install() {
	default
	rm -r "${ED}/usr/share/xdp-tools" || die
	rm "${ED}/usr/$(get_libdir)/libxdp.a" || die
	use tools || { rm "${ED}/usr/sbin"/* || die; }
	dostrip -x /usr/lib/bpf
}