dev-util/b2: Sync with Gentoo

It's from Gentoo commit 1f2750837cdb4c4d6c15852e49e4331efa0e6114.

sdk_container/src/third_party/portage-stable/dev-util/b2/Manifest

@@ -1 +1,2 @@
+DIST b2-4.10.0.tar.gz 982436 BLAKE2B 7e408e4ae67cf483c972fd7cefda39938c7819aa28e3ef358f44efe19ef43014d52fe32be40e27f33c27db760833948bbeb54e4ee99fd7ebb4e73e8ea3618c6b SHA512 251a3e07b18cbc768e7423d6259eec7466dfb33d2bab1e2f88bc0896574c854338429b591e6961c0d81c17b9ec6eb4cda06f46a8952f5ca4e4fa8bffb69a50d7
 DIST b2-4.9.6.tar.gz 977724 BLAKE2B 15ce459d7051be037bdb477432591baccb4e5339a16385a63205c19815766406f631879f0e1f986e184640466f5b6af5ade72d248975731528032a8e735e483e SHA512 a3dc9dccbf1221971607a15df642d4ad9029c1acaf329e419f363a6e6ddb6062a8ef595aa49810dc2ff3a3f333bfbaed7384819a143cc5847a95daf6fd48ccb1

sdk_container/src/third_party/portage-stable/dev-util/b2/b2-4.10.0.ebuild

@@ -0,0 +1,70 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit edo flag-o-matic toolchain-funcs
+
+MY_PV="$(ver_rs 1- _)"
+
+DESCRIPTION="A system for large project software construction, simple to use and powerful"
+HOMEPAGE="https://www.bfgroup.xyz/b2/"
+SRC_URI="https://github.com/bfgroup/b2/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/${P}/src"
+
+LICENSE="Boost-1.0"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="examples"
+RESTRICT="test"
+
+RDEPEND="!dev-util/boost-build"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-4.9.2-disable_python_rpath.patch
+	"${FILESDIR}"/${PN}-4.9.2-darwin-gentoo-toolchain.patch
+	"${FILESDIR}"/${PN}-4.9.2-add-none-feature-options.patch
+	"${FILESDIR}"/${PN}-4.9.2-no-implicit-march-flags.patch
+	"${FILESDIR}"/${PN}-4.9.2-odr.patch
+)
+
+src_configure() {
+	# need to enable LFS explicitly for 64-bit offsets on 32-bit hosts (#761100)
+	append-lfs-flags
+}
+
+src_compile() {
+	cd engine || die
+
+	# upstream doesn't want separate flags for CPPFLAGS/LDFLAGS
+	# https://github.com/bfgroup/b2/pull/187#issuecomment-1335688424
+	edo ${CONFIG_SHELL:-${BASH}} ./build.sh cxx \
+		--cxx="$(tc-getCXX)" \
+		--cxxflags="${CXXFLAGS} ${CPPFLAGS} ${LDFLAGS}" \
+		-d+2 \
+		--without-python
+}
+
+src_test() {
+	# Forget tests, b2 is a lost cause
+	:
+}
+
+src_install() {
+	dobin engine/b2
+
+	insinto /usr/share/b2/src
+	doins -r "${FILESDIR}/site-config.jam" \
+		bootstrap.jam build-system.jam ../example/user-config.jam \
+		build kernel options tools util
+
+	find "${ED}"/usr/share/b2/src -iname '*.py' -delete || die
+
+	dodoc ../notes/{changes,release_procedure,build_dir_option,relative_source_paths}.txt
+
+	if use examples; then
+		docinto examples
+		dodoc -r ../example/.
+		docompress -x /usr/share/doc/${PF}/examples
+	fi
+}