dev-libs/libdnet: Sync with Gentoo

It's from Gentoo commit 97692e4c8d1739affda946d7785fcc3c16f7d456.

sdk_container/src/third_party/portage-stable/dev-libs/libdnet/Manifest

@@ -1,3 +1,4 @@
 DIST libdnet-1.16.2.tar.gz 675191 BLAKE2B 04e4533dbe45700decec4755c7db608d0ca68be05431bf44e6984b2c6a4aec55888fc0f0159916c8ac4a60ec5f743047d2a0a541786cd13fda61739bd7eef0fb SHA512 4b1902553a57eeb56952968e15be032de92d8106dc6e0ebf8e10470605c9c2ed69cb015f4057a5c119d01509c6795fc0dcda85a311d14124dddefdeb6223f848
 DIST libdnet-1.16.4.tar.gz 684358 BLAKE2B 40be891c9004288329aaee0c79a29ebf0f095dfaaca4da98fd5ecfd759e22b8d10dc6b906200db1ac5b0a8cfbbea8fbe509da393e60cddeb5f875ad179cdc67a SHA512 6c5556e365047afcc5da3f76b1c99aa70723c076a7cf75c03d96a661a583dfa6d0ab605076e68efffe5ddca2d69875e4bc4938e0874b8aa24915fcfbfe3f3ff9
 DIST libdnet-1.17.0.tar.gz 684645 BLAKE2B b208cb41201145411b1949531cb1ab27b4edc6026b8ca703c24231fdb021f46bfe922eb1da11090c271f439339f5384c93168fad3130ed2f89b3d2eca5c7f89f SHA512 b207b2f61e3759a2b17827eabf37b0eb68cb9fa27418f99ee4efd754b01dfe8504dff465664b14054d54df334195d43963d142c7104dc603b2b8b1491590d2a7
+DIST libdnet-1.18.0.tar.gz 740145 BLAKE2B 67f9257e0a05c6c768609c288de9a8704a7ba9d66142bcf849929fa3dbc7b59e379cef2a917d01d4ccfa63b5dfffaf7225f9c67f94e6e91c528a3066fae8c933 SHA512 c074828a1ecd21c292f9120c7afb6b3c11e967d1e0aaca78e75a5558e96f5e65e0d24b68b8386c33c1c28734a3d30f5857d394796e049d521c8b4a9a2c8dcea9

sdk_container/src/third_party/portage-stable/dev-libs/libdnet/libdnet-1.18.0.ebuild

@@ -0,0 +1,88 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..11} )
+DISTUTILS_EXT=1
+DISTUTILS_OPTIONAL=1
+inherit autotools distutils-r1
+
+DESCRIPTION="Simplified, portable interface to several low-level networking routines"
+HOMEPAGE="https://github.com/ofalk/libdnet"
+SRC_URI="https://github.com/ofalk/${PN}/archive/${P}.tar.gz"
+S="${WORKDIR}/${PN}-${P}"
+
+LICENSE="LGPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
+IUSE="python test"
+# Tests fail in sandbox
+RESTRICT="!test? ( test ) test"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+DEPEND="
+	dev-libs/libbsd
+	python? ( ${PYTHON_DEPS} )
+"
+RDEPEND="${DEPEND}"
+BDEPEND="
+	python? ( dev-python/cython[${PYTHON_USEDEP}] )
+	test? ( dev-libs/check )
+"
+
+DOCS=( README.md THANKS )
+
+src_prepare() {
+	default
+
+	sed -i \
+		-e 's/libcheck.a/libcheck.so/g' \
+		configure.ac || die
+	sed -i \
+		-e "s/lib\/libcheck/$(get_libdir)\/libcheck/g" \
+		configure.ac || die
+	sed -i \
+		-e 's|-L$libdir ||g' \
+		dnet-config.in || die
+	sed -i \
+		-e '/^SUBDIRS/s|python||g' \
+		Makefile.am || die
+
+	# Stale e.g. pkg-config macros w/ bashisms
+	rm aclocal.m4 {config,m4}/libtool.m4 || die
+
+	AT_M4DIR="config" eautoreconf
+
+	if use python; then
+		cd python || die
+		distutils-r1_src_prepare
+	fi
+}
+
+src_configure() {
+	econf \
+		$(use_with python) \
+		$(use_enable test check)
+}
+
+src_compile() {
+	default
+
+	if use python; then
+		cd python || die
+		distutils-r1_src_compile
+	fi
+}
+
+src_install() {
+	default
+
+	if use python; then
+		cd python || die
+		unset DOCS
+		distutils-r1_src_install
+	fi
+
+	find "${ED}" -name '*.la' -delete || die
+}