sys-libs/libcap-ng: Sync with Gentoo

It's from Gentoo commit 24f7b521a7505c47244add5782a15ecfe9d6e88c.

sdk_container/src/third_party/portage-stable/sys-libs/libcap-ng/Manifest

@@ -1,2 +1,3 @@
 DIST libcap-ng-0.8.2-apply-disable.patch 723 BLAKE2B 70d9959c55119c02bbc4ea605251491c04c477511c20b9fe93e6527ffd3fe2f35a72fabab5ca149c4aaf536c6cd8dceb15375297158f8827a0c676744381bbc1 SHA512 8c9317bdd4fde7d6a4618ec613bce46bed7646891bd16bc3fa307e9a814e38601bf3c6ad13102389d4596d9ed6a7ad853cca58624e724fe07383007e386c51f8
 DIST libcap-ng-0.8.3.tar.gz 455383 BLAKE2B c54dd753e0ef6dd21bcf6af7b003f85ded9faf2fbf1ea834cda6b181b165ff4b11a0284c23c73d0e6f97a810b3e6a63fceeb57ff583a2b32f23924bdee597ef5 SHA512 0ef9bc7bc6b7b59991f43b79aa6cde3e8d2c22c4b9ced2af8deae501e01d51e893033d109cb8aa0fdcba190140110993089245346334d7b114d18f1bb1b55b97
+DIST libcap-ng-0.8.4.tar.gz 453749 BLAKE2B 523480281cfa544e77e30932968b4b18424286dbced06bb4645d536cf19d4cc0f7c73de82006ffc329aa7ef208e0cf8e3379f1b20e1e8e4e90e422ed736f6c44 SHA512 f4f3499d592e8583c2bdb8d700981a7930bd545f0889bc02f49acecf17e3bc600b100cd4f64e9326e5bac0a07a02a1ac4b7e83e919563066665a3d67cbe6871e

sdk_container/src/third_party/portage-stable/sys-libs/libcap-ng/libcap-ng-0.8.4.ebuild

@@ -0,0 +1,100 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Keep an eye on Fedora's packaging (https://src.fedoraproject.org/rpms/libcap-ng/tree/rawhide) for patches
+# Same maintainer in Fedora as upstream
+PYTHON_COMPAT=( python3_{10..12} )
+inherit autotools flag-o-matic python-r1
+
+DESCRIPTION="POSIX 1003.1e capabilities"
+HOMEPAGE="https://people.redhat.com/sgrubb/libcap-ng/"
+SRC_URI="https://people.redhat.com/sgrubb/${PN}/${P}.tar.gz"
+
+LICENSE="GPL-2+ LGPL-2.1+"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x86-linux"
+IUSE="python static-libs"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="python? ( ${PYTHON_DEPS} )"
+DEPEND="
+	${RDEPEND}
+	sys-kernel/linux-headers
+"
+BDEPEND="python? ( >=dev-lang/swig-2 )"
+
+src_prepare() {
+	default
+
+	if use prefix ; then
+		sed -i "s@cat /usr@cat ${EPREFIX}/usr@" bindings/python*/Makefile.am || die
+		# bug #668722
+		eautomake
+	fi
+}
+
+src_configure() {
+	use sparc && replace-flags -O? -O0
+
+	local ECONF_SOURCE="${S}"
+
+	local myconf=(
+		$(use_enable static-libs static)
+	)
+
+	local pythonconf=(
+		--without-python3
+	)
+
+	# Set up python bindings build(s)
+	if use python ; then
+		setup_python_flags_configure() {
+			pythonconf=(
+				--with-python3
+			)
+
+			run_in_build_dir econf "${pythonconf[@]}" "${myconf[@]}"
+		}
+
+		python_foreach_impl setup_python_flags_configure
+	else
+		local BUILD_DIR="${WORKDIR}"/build
+		run_in_build_dir econf "${pythonconf[@]}" "${myconf[@]}"
+	fi
+}
+
+src_compile() {
+	if use python ; then
+		python_foreach_impl run_in_build_dir emake
+	else
+		local BUILD_DIR="${WORKDIR}"/build
+		emake -C "${BUILD_DIR}"
+	fi
+}
+
+src_test() {
+	if [[ "${EUID}" -eq 0 ]] ; then
+		ewarn "Skipping tests due to root permissions."
+		return
+	fi
+
+	if use python ; then
+		python_foreach_impl run_in_build_dir emake check
+	else
+		local BUILD_DIR="${WORKDIR}"/build
+		emake -C "${BUILD_DIR}" check
+	fi
+}
+
+src_install() {
+	if use python ; then
+		python_foreach_impl run_in_build_dir emake DESTDIR="${D}" install
+	else
+		local BUILD_DIR="${WORKDIR}"/build
+		emake -C "${BUILD_DIR}" DESTDIR="${D}" install
+	fi
+
+	find "${ED}" -name '*.la' -delete || die
+}