diff --git a/net-libs/libtorrent-rasterbar/Manifest b/net-libs/libtorrent-rasterbar/Manifest
index d759e057a42b0..60b3ed6a000f5 100644
--- a/net-libs/libtorrent-rasterbar/Manifest
+++ b/net-libs/libtorrent-rasterbar/Manifest
@@ -1,5 +1,5 @@
 DIST libtorrent-1.2.14.tar.gz 3614077 BLAKE2B 423cd0c467510e3b4d33485ea108912a90ef0d66746e6f912eeb07930e7091d1ce8e28953a48dab3bb03c6232a9e958be423d4563bd63c083ec1423c4753b3df SHA512 9ba7d8a271ecc7330ae9c794f3966a6d1677b9d2a02a24df8b6e63daa4d5c0a7ef88607a73b417247b4afc5195e46cd0ca75859358f9e50915af56b3ed19f322
-DIST libtorrent-1.2.15.tar.gz 3624131 BLAKE2B d3ec61efd7016aebc229631e8187b0e484337d42093a4d068d0d5cddb90c85209d8a6837e6844bccc0ed5dbf6fa0bcbbbb7b7817906937690089c39ab9a29a94 SHA512 75a959f3cf0eb13e93266f4ff91ead8a2f36b990270fc14abe3799be0c6f4e3580d841f4f24e05a7cfae3654ca865fef56a40d46b0f575fe90ef3e90d6ee46c8
+DIST libtorrent-rasterbar-1.2.15.tar.gz 4163049 BLAKE2B 282d6cf19897706f96d68c75df3c1f5f004df38c07ca2fcaa760f0004512dc8759ea47d4e0c96ff4d8ac2d23569a05507c5dd0667d83c702e14825a0d9ffcd0e SHA512 c409c53ec9c299a05b51ab61d7df1209803cbd6070f0a014dd6fb42c30f6f5230ea90848330f901c61816bc70901e618409acacc95bb0e5acb7f81211d001fa2
 DIST libtorrent-rasterbar-2.0.4-ssl-tests-certs.patch.bz2 26530 BLAKE2B 0958f11be84860cfb0e9224901a6052d9acb80edbd9f9e6eeb2e621e30e75fac4c4db64c71573b7c7f91761e74b9c5781ef8d1a202aef06cd92e3edb15d9f810 SHA512 f3afc4e0857838a44fa3671d657b5f669194c504d07d8f72ca5ddc060786127e3d6ad4ae9efa39e9f02fbe396f4785a1755dd1fd9607c1cef31aa60574b3511e
 DIST libtorrent-rasterbar-2.0.4.tar.gz 4311319 BLAKE2B fee8255d46d5ca019cd487b57fc6003744c208ea5e78873b925f53881667c55c506d302fc7ae6cd5b5d5e776cfe059b714db94d16dd28cfc7939ec6f4fa4e5fa SHA512 66ce3c3369b1d2a83654727c23022d38b070b8bc3ad83b1001e2cfad945acbaa4d61990094bc758886967cd305ca2213b60b1b0523b5106c42d4701d8cff8db1
 DIST libtorrent-rasterbar-2.0.5.tar.gz 4407260 BLAKE2B 71c64879be103326fe438ba6b11b672fb0d631ed0de4eb23c2595f3596b522693594ded9f8733c7827dd668e285cb5099cad78bcd437ec184837eafbd39b356f SHA512 be5b812135dada957e565085b5bdda06827c8427f78a4468ef263e1a1e33d3a0bbba7ac27235f0d17ae6087d54311281e3b1975eef81cda514acc8329862dc04
diff --git a/net-libs/libtorrent-rasterbar/libtorrent-rasterbar-1.2.15-r1.ebuild b/net-libs/libtorrent-rasterbar/libtorrent-rasterbar-1.2.15-r1.ebuild
new file mode 100644
index 0000000000000..459ca7926b077
--- /dev/null
+++ b/net-libs/libtorrent-rasterbar/libtorrent-rasterbar-1.2.15-r1.ebuild
@@ -0,0 +1,69 @@
+# Copyright 2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{8,9,10} )
+
+inherit cmake python-single-r1
+
+DESCRIPTION="C++ BitTorrent implementation focusing on efficiency and scalability"
+HOMEPAGE="https://libtorrent.org/ https://github.com/arvidn/libtorrent"
+SRC_URI="https://github.com/arvidn/libtorrent/releases/download/v${PV}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0/10"
+KEYWORDS="~amd64 ~arm ~ppc ~ppc64 ~sparc ~x86"
+IUSE="+dht debug python ssl test"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	dev-libs/boost:=[threads(+)]
+	python? (
+		${PYTHON_DEPS}
+		$(python_gen_cond_dep '
+			dev-libs/boost[python,${PYTHON_USEDEP}]
+		')
+	)
+	ssl? ( dev-libs/openssl:= )
+"
+RDEPEND="${DEPEND}"
+BDEPEND="python? (
+		$(python_gen_cond_dep '
+			dev-python/setuptools[${PYTHON_USEDEP}]
+		')
+	)"
+
+pkg_setup() {
+	use python && python-single-r1_pkg_setup
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+		-Dbuild_examples=OFF
+		-Ddht=$(usex dht ON OFF)
+		-Dencryption=$(usex ssl ON OFF)
+		-Dlogging=$(usex debug ON OFF)
+		-Dpython-bindings=$(usex python ON OFF)
+		-Dbuild_tests=$(usex test ON OFF)
+	)
+
+	# We need to drop the . from the Python version to satisfy Boost's
+	# FindBoost.cmake module, bug #793038.
+	use python && mycmakeargs+=( -Dboost-python-module-name="${EPYTHON/./}" )
+
+	cmake_src_configure
+}
+
+src_test() {
+	local myctestargs=(
+		# Needs running UPnP server
+		-E "test_upnp"
+	)
+
+	# Checked out Fedora's test workarounds for inspiration
+	# https://src.fedoraproject.org/rpms/rb_libtorrent/blob/rawhide/f/rb_libtorrent.spec#_120
+	LD_LIBRARY_PATH="${BUILD_DIR}:${LD_LIBRARY_PATH}" cmake_src_test
+}
diff --git a/net-libs/libtorrent-rasterbar/libtorrent-rasterbar-1.2.15.ebuild b/net-libs/libtorrent-rasterbar/libtorrent-rasterbar-1.2.15.ebuild
deleted file mode 100644
index c7f1bb211605d..0000000000000
--- a/net-libs/libtorrent-rasterbar/libtorrent-rasterbar-1.2.15.ebuild
+++ /dev/null
@@ -1,112 +0,0 @@
-# Copyright 1999-2021 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-PYTHON_COMPAT=( python3_{8,9,10} )
-PYTHON_REQ_USE="threads(+)"
-DISTUTILS_OPTIONAL=true
-DISTUTILS_IN_SOURCE_BUILD=true
-
-inherit autotools distutils-r1
-
-DESCRIPTION="C++ BitTorrent implementation focusing on efficiency and scalability"
-HOMEPAGE="https://libtorrent.org https://github.com/arvidn/libtorrent"
-SRC_URI="https://github.com/arvidn/libtorrent/archive/v${PV}.tar.gz -> libtorrent-${PV}.tar.gz"
-
-LICENSE="BSD"
-SLOT="0/10"
-KEYWORDS="~amd64 ~arm ~ppc ~ppc64 ~sparc ~x86"
-IUSE="debug +dht doc examples python +ssl static-libs test"
-
-REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
-
-RESTRICT="!test? ( test )"
-
-S="${WORKDIR}/libtorrent-${PV}"
-
-RDEPEND="
-	dev-libs/boost:=[threads(+)]
-	virtual/libiconv
-	examples? ( !net-p2p/mldonkey )
-	python? (
-		${PYTHON_DEPS}
-		dev-libs/boost:=[python,${PYTHON_USEDEP}]
-	)
-	ssl? (
-		dev-libs/openssl:0=
-	)
-"
-DEPEND="${RDEPEND}"
-BDEPEND="sys-devel/libtool
-	python? ( dev-python/setuptools[${PYTHON_USEDEP}] )"
-
-src_prepare() {
-	mkdir -p "${S}"/build-aux || die
-	touch "${S}"/build-aux/config.rpath || die
-	eautoreconf
-
-	default
-
-	# bug 578026
-	# prepend -L${S}/... to ensure bindings link against the lib we just built
-	sed -i -e "s|^|-L${S}/src/.libs |" bindings/python/link_flags.in || die
-
-	# prepend -I${S}/... to ensure bindings use the right headers
-	sed -i -e "s|^|-I${S}/src/include |" bindings/python/compile_flags.in || die
-
-	use python && distutils-r1_src_prepare
-}
-
-src_configure() {
-
-	local myeconfargs=(
-		$(use_enable debug)
-		$(use_enable debug export-all)
-		$(use_enable debug logging)
-		$(use_enable dht)
-		$(use_enable examples)
-		$(use_enable ssl encryption)
-		$(use_enable static-libs static)
-		$(use_enable test tests)
-		--with-boost="${ESYSROOT}/usr"
-		# Needed because of bug #767835
-		--with-boost-libdir="${ESYSROOT}/usr/$(get_libdir)"
-		--with-libiconv
-		--enable-logging
-	)
-	econf "${myeconfargs[@]}"
-
-	if use python; then
-		python_configure() {
-			econf "${myeconfargs[@]}" \
-				--enable-python-binding \
-				--with-boost-python="boost_${EPYTHON/./}"
-		}
-		distutils-r1_src_configure
-	fi
-}
-
-src_compile() {
-	default
-
-	python_compile() {
-		cd "${BUILD_DIR}/../bindings/python" || die
-		distutils-r1_python_compile
-	}
-	use python && distutils-r1_src_compile
-}
-
-src_install() {
-	use doc && HTML_DOCS+=( "${S}"/docs )
-
-	default
-
-	python_install() {
-		cd "${BUILD_DIR}/../bindings/python" || die
-		distutils-r1_python_install
-	}
-	use python && distutils-r1_src_install
-
-	find "${D}" -name '*.la' -delete || die
-}