dev-util/b2: Sync with Gentoo

It's from Gentoo commit e535444e3e0fc8e23069e7fb02d19d6f7d003250.

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

@@ -1,2 +1,3 @@
 DIST b2-4.9.3.tar.gz 975934 BLAKE2B 8d16e7227676786408f0d84efb577806e304a9181b89656dad1243b5b0b48e67d4226fa51ea97d4ea10110e4ea86f3ae2884d711fa4b04e36bdaa68dff0a4710 SHA512 8f861074a50720ad5469277a469523ef5f87ef2aab65d745f4c5e6af0ed8f40af91c43cd42b7845982c065974026ce1ecc77a831cd0c698c7e22fa848cc81009
 DIST b2-4.9.5.tar.gz 977680 BLAKE2B 9025554e4c68257a8d12af9db22c3c3e4c13a5244c7ca474fb935a76fb8fdf2a0a7778756a7b022de90d6585edb758e8dbc54e012f2340ab055b1294709625e8 SHA512 398398e1437554aad0dc123bbf30bd61b26266058b872eb18dd84941cccf3bbc8903944c09add7bf5f05fb8424539fd4358e9b1bcdd4dbfbc84d4f41710e92e6
+DIST b2-4.9.6.tar.gz 977724 BLAKE2B 15ce459d7051be037bdb477432591baccb4e5339a16385a63205c19815766406f631879f0e1f986e184640466f5b6af5ade72d248975731528032a8e735e483e SHA512 a3dc9dccbf1221971607a15df642d4ad9029c1acaf329e419f363a6e6ddb6062a8ef595aa49810dc2ff3a3f333bfbaed7384819a143cc5847a95daf6fd48ccb1

sdk_container/src/third_party/portage-stable/dev-util/b2/b2-4.9.6.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}/${P}/src"
+
+LICENSE="Boost-1.0"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+IUSE="examples"
+RESTRICT="test"
+
+RDEPEND="!dev-util/boost-build"
+
+PATCHES=(
+	"${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
+}