bump(sys-libs/libseccomp): sync with upstream

Change python check to python3_6 so it builds in Flatcar.
Update checksums

sdk_container/src/third_party/portage-stable/sys-libs/libseccomp/Manifest

@@ -1 +1 @@
-DIST libseccomp-2.4.0.tar.gz 604987 BLAKE2B 2dd84f2c08d40a61dfe4fdc47a9dcdad2701e2918cdcdeae2d15a66eb114221866121bab11a8292f3bd31493b6cd7b370d0728976cb1bbfd0dbb9e32127b9045 SHA512 daa4a32c6c2b2f39aa9db1a4606619f9faeffcd2fca00c25ac5cf95d0405639ec21203293be7c8341317a05b18fd9f603a201544457cac91bf034a0bbd4dfc88
+DIST libseccomp-2.5.0.tar.gz 638793 BLAKE2B c1f30624e210d632175b734c49411ee3f95e8f0ee68819ad83a342434231baef10c292f23fca0127394365a37efb043f9f24ade9534deecd61f50e7111a6fbc8 SHA512 00ef5aeb4db8dafb546ae680b2d6d9b6aeed008df805d0f28f9dd15c074ff6ea7a5e5131ab503825b8011c59aa23046baedd5849ca040aa73352f43ab2d602ae

sdk_container/src/third_party/portage-stable/sys-libs/libseccomp/libseccomp-2.4.0.ebuild

@@ -1,41 +0,0 @@
-# Copyright 1999-2019 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-# TODO: Add python support.
-
-EAPI=6
-
-inherit multilib-minimal
-
-DESCRIPTION="high level interface to Linux seccomp filter"
-HOMEPAGE="https://github.com/seccomp/libseccomp"
-SRC_URI="https://github.com/seccomp/libseccomp/releases/download/v${PV}/${P}.tar.gz"
-
-LICENSE="LGPL-2.1"
-SLOT="0"
-KEYWORDS="-* amd64 arm arm64 ~hppa ~mips ppc ppc64 s390 x86 ~amd64-linux ~x86-linux"
-IUSE="static-libs"
-
-# We need newer kernel headers; we don't keep strict control of the exact
-# version here, just be safe and pull in the latest stable ones. #551248
-DEPEND=">=sys-kernel/linux-headers-4.3"
-
-src_prepare() {
-	default
-	sed -i \
-		-e '/_LDFLAGS/s:-static::' \
-		tools/Makefile.in || die
-}
-
-multilib_src_configure() {
-	local myeconfargs=(
-		$(use_enable static-libs static)
-		--disable-python
-	)
-	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
-}
-
-multilib_src_install_all() {
-	find "${ED}" -name libseccomp.la -delete
-	einstalldocs
-}

sdk_container/src/third_party/portage-stable/sys-libs/libseccomp/libseccomp-2.5.0.ebuild

@@ -0,0 +1,85 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_6 )
+DISTUTILS_OPTIONAL=1
+
+inherit distutils-r1 multilib-minimal
+
+DESCRIPTION="high level interface to Linux seccomp filter"
+HOMEPAGE="https://github.com/seccomp/libseccomp"
+
+if [[ ${PV} == *9999 ]] ; then
+	EGIT_REPO_URI="https://github.com/seccomp/libseccomp.git"
+	PRERELEASE="2.6.0"
+	inherit autotools git-r3
+else
+	SRC_URI="https://github.com/seccomp/libseccomp/releases/download/v${PV}/${P}.tar.gz"
+	KEYWORDS="-* ~amd64 ~arm ~arm64 ~hppa ~mips ~ppc ~ppc64 ~riscv ~s390 ~x86 ~amd64-linux ~x86-linux"
+fi
+
+LICENSE="LGPL-2.1"
+SLOT="0"
+IUSE="python static-libs"
+
+REQUIRED_USE="
+	python? (
+		static-libs
+		${PYTHON_REQUIRED_USE}
+	)"
+
+BDEPEND="
+	dev-util/gperf
+	python? ( ${PYTHON_DEPS} )
+"
+DEPEND="${BDEPEND}"
+RDEPEND="${DEPEND}"
+
+# We need newer kernel headers; we don't keep strict control of the exact
+# version here, just be safe and pull in the latest stable ones. #551248
+DEPEND="${DEPEND} >=sys-kernel/linux-headers-4.3"
+
+src_prepare() {
+	default
+	if [[ "${PV}" == *9999 ]] ; then
+		sed -i -e "s/0.0.0/${PRERELEASE}/" configure.ac
+		eautoreconf
+	fi
+}
+
+multilib_src_configure() {
+	local myeconfargs=(
+		$(use_enable static-libs static)
+		--disable-python
+	)
+	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
+}
+
+multilib_src_compile() {
+	emake
+
+	if multilib_is_native_abi && use python ; then
+		cd "${S}/src/python" || die
+		sed -i -e "s/=.*VERSION_RELEASE.*,/=\"${PRERELEASE}\",/" \
+			-e "/extra_objects/s,\.\.,${OLDPWD}/src," \
+			setup.py || die
+		local -x CPPFLAGS="-I${OLDPWD}/include -I../../include"
+		distutils-r1_src_compile
+	fi
+}
+
+multilib_src_install() {
+	emake DESTDIR="${D}" install
+
+	if multilib_is_native_abi && use python ; then
+		cd "${S}/src/python" || die
+		distutils-r1_src_install
+	fi
+}
+
+multilib_src_install_all() {
+	find "${ED}" -type f -name "${PN}.la" -delete || die
+	einstalldocs
+}