dev-libs/boost: Version bump to 1.71.0

* Added a message in `pkg_postinst` to remind users to rebuild boost
  and revdeps when upgrading the C++ toolchain.

Closes: https://bugs.gentoo.org/594844
Closes: https://bugs.gentoo.org/627302
Closes: https://bugs.gentoo.org/629976
Closes: https://bugs.gentoo.org/641738
Package-Manager: Portage-2.3.76, Repoman-2.3.17
Signed-off-by: David Seifert <soap@gentoo.org>

2 files changed, 341 insertions, 0 deletions

diff --git a/dev-libs/boost/Manifest b/dev-libs/boost/Manifest
index 5f5600925747..c189b10ccc4c 100644
--- a/dev-libs/boost/Manifest
+++ b/dev-libs/boost/Manifest
@@ -1,2 +1,3 @@
 DIST boost_1_65_0.tar.bz2 82597718 BLAKE2B 0080956d6ad2f14130ce4a4734b1bd1ce83d3651b226653689e02770baa83cf11811ef4e44948ff68a168d9ce5cbfaea4f758970df2b4e9faa2d410181885f5b SHA512 7142650fb8d61e3ef16ba066fc918e087f19e9bc2ad1d6a11fb10bf0d6b1b5ad05ab032f076a5233a1624b3669e952b2cc38b7dc074bbf53018e2970ee90fcdd
 DIST boost_1_70_0.tar.bz2 97887058 BLAKE2B dc7a974c6dc2662b767dbd87cb832cd1749c24fb745779d1059b73f19f7e52b33b645adfe72b0296c5e098e5cdb3b9f5eddd382374f33fbcd2ad5739287b2206 SHA512 7f2ea9636baf0210e8ed1d21ee798efb6ce23c0710ff8228b285e2214f82193bcd2d912fd435929c554289a59101c7be2e27ce798f93833f307976f0dd070b49
+DIST boost_1_71_0.tar.bz2 100124647 BLAKE2B edf5a03d5a5a63ef5826ef3c19a5ee862a43eb93e8e3d76f8a0d1f2c23122f5a0535e045058110574cd19092f3199c28ab9dae53f9db05ffe8c0b0b8cdbe27a9 SHA512 b7937d50c4512cf13cadd0ca829de36cf2cbc6fb788f45b1d4565ad0753e2b206c545125a5862016c2f16016f2e4a6b687928963b466fff17c3e0a4437142c20
diff --git a/dev-libs/boost/boost-1.71.0.ebuild b/dev-libs/boost/boost-1.71.0.ebuild
new file mode 100644
index 000000000000..1cb3422d121a
--- /dev/null
+++ b/dev-libs/boost/boost-1.71.0.ebuild
@@ -0,0 +1,340 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python{2_7,3_{5,6,7}} )
+
+inherit flag-o-matic multiprocessing python-r1 toolchain-funcs multilib-minimal
+
+MY_PV="$(ver_rs 1- _)"
+MAJOR_V="$(ver_cut 1-2)"
+
+DESCRIPTION="Boost Libraries for C++"
+HOMEPAGE="https://www.boost.org/"
+SRC_URI="https://dl.bintray.com/boostorg/release/${PV}/source/boost_${MY_PV}.tar.bz2"
+
+LICENSE="Boost-1.0"
+SLOT="0/${PV}" # ${PV} instead ${MAJOR_V} due to bug 486122
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~ppc-aix ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x86-solaris ~x86-winnt"
+IUSE="bzip2 context debug doc icu lzma +nls mpi numpy python static-libs +threads tools zlib zstd"
+REQUIRED_USE="
+	mpi? ( threads )
+	python? ( ${PYTHON_REQUIRED_USE} )"
+
+# the tests will never fail because these are not intended as sanity
+# tests at all. They are more a way for upstream to check their own code
+# on new compilers. Since they would either be completely unreliable
+# (failing for no good reason) or completely useless (never failing)
+# there is no point in having them in the ebuild to begin with.
+RESTRICT="test"
+
+RDEPEND="
+	!app-admin/eselect-boost
+	!dev-libs/boost-numpy
+	bzip2? ( app-arch/bzip2:=[${MULTILIB_USEDEP}] )
+	icu? ( >=dev-libs/icu-3.6:=[${MULTILIB_USEDEP}] )
+	!icu? ( virtual/libiconv[${MULTILIB_USEDEP}] )
+	lzma? ( app-arch/xz-utils:=[${MULTILIB_USEDEP}] )
+	mpi? ( >=virtual/mpi-2.0-r4[${MULTILIB_USEDEP},cxx,threads] )
+	python? (
+		${PYTHON_DEPS}
+		numpy? ( >=dev-python/numpy-1.14.5[${PYTHON_USEDEP}] )
+	)
+	zlib? ( sys-libs/zlib:=[${MULTILIB_USEDEP}] )
+	zstd? ( app-arch/zstd:=[${MULTILIB_USEDEP}] )"
+DEPEND="${RDEPEND}"
+BDEPEND="=dev-util/boost-build-${MAJOR_V}*"
+
+S="${WORKDIR}/${PN}_${MY_PV}"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.48.0-disable_icu_rpath.patch
+	"${FILESDIR}"/${PN}-1.69.0-context-x32.patch
+	"${FILESDIR}"/${PN}-1.56.0-build-auto_index-tool.patch
+)
+
+python_bindings_needed() {
+	multilib_is_native_abi && use python
+}
+
+tools_needed() {
+	multilib_is_native_abi && use tools
+}
+
+create_user-config.jam() {
+	local user_config_jam="${BUILD_DIR}"/user-config.jam
+	if [[ -s ${user_config_jam} ]]; then
+		einfo "${user_config_jam} already exists, skipping configuration"
+		return
+	else
+		einfo "Creating configuration in ${user_config_jam}"
+	fi
+
+	local compiler compiler_version compiler_executable="$(tc-getCXX)"
+	if [[ ${CHOST} == *-darwin* ]]; then
+		compiler="darwin"
+		compiler_version="$(gcc-fullversion)"
+	else
+		compiler="gcc"
+		compiler_version="$(gcc-version)"
+	fi
+
+	if use mpi; then
+		local mpi_configuration="using mpi ;"
+	fi
+
+	cat > "${user_config_jam}" <<- __EOF__ || die
+		using ${compiler} : ${compiler_version} : ${compiler_executable} : <cflags>"${CFLAGS}" <cxxflags>"${CXXFLAGS}" <linkflags>"${LDFLAGS}" ;
+		${mpi_configuration}
+	__EOF__
+
+	if python_bindings_needed; then
+		append_to_user_config() {
+			local py_config
+			if tc-is-cross-compiler; then
+				py_config="using python : ${EPYTHON#python} : : ${ESYSROOT}/usr/include/${EPYTHON} : ${ESYSROOT}/usr/$(get_libdir) ;"
+			else
+				py_config="using python : ${EPYTHON#python} : ${PYTHON} : $(python_get_includedir) ;"
+			fi
+			echo "${py_config}" >> "${user_config_jam}" || die
+		}
+		python_foreach_impl append_to_user_config
+	fi
+
+	if python_bindings_needed && use numpy; then
+		einfo "Enabling support for NumPy extensions in Boost.Python"
+	else
+		einfo "Disabling support for NumPy extensions in Boost.Python"
+
+		# Boost.Build does not allow for disabling of numpy
+		# extensions, thereby leading to automagic numpy
+		# https://github.com/boostorg/python/issues/111#issuecomment-280447482
+		sed \
+			-e 's/\[ unless \[ python\.numpy \] : <build>no \]/<build>no/g' \
+			-i "${BUILD_DIR}"/libs/python/build/Jamfile || die
+	fi
+}
+
+pkg_setup() {
+	# Bail out on unsupported build configuration, bug #456792
+	if [[ -f "${EROOT}"/etc/site-config.jam ]]; then
+		if ! grep -q 'gentoo\(debug\|release\)' "${EROOT}"/etc/site-config.jam; then
+			eerror "You are using custom ${EROOT}/etc/site-config.jam without defined gentoorelease/gentoodebug targets."
+			eerror "Boost can not be built in such configuration."
+			eerror "Please, either remove this file or add targets from ${EROOT}/usr/share/boost-build/site-config.jam to it."
+			die "Unsupported target in ${EROOT}/etc/site-config.jam"
+		fi
+	fi
+}
+
+src_prepare() {
+	default
+
+	# Do not try to build missing 'wave' tool, bug #522682
+	# Upstream bugreport - https://svn.boost.org/trac/boost/ticket/10507
+	sed -i -e 's:wave/build//wave::' tools/Jamfile.v2 || die
+
+	multilib_copy_sources
+}
+
+ejam() {
+	create_user-config.jam
+
+	local b2_opts=( "--user-config=${BUILD_DIR}/user-config.jam" )
+	if python_bindings_needed; then
+		append_to_b2_opts() {
+			b2_opts+=( python="${EPYTHON#python}" )
+		}
+		python_foreach_impl append_to_b2_opts
+	else
+		b2_opts+=( --without-python )
+	fi
+	b2_opts+=( "$@" )
+
+	echo b2 "${b2_opts[@]}" >&2
+	b2 "${b2_opts[@]}"
+}
+
+src_configure() {
+	# Workaround for too many parallel processes requested, bug #506064
+	[[ "$(makeopts_jobs)" -gt 64 ]] && MAKEOPTS="${MAKEOPTS} -j64"
+
+	OPTIONS=(
+		$(usex debug gentoodebug gentoorelease)
+		"-j$(makeopts_jobs)"
+		-q
+		-d+2
+		pch=off
+		$(usex icu "-sICU_PATH=${ESYSROOT}/usr" '--disable-icu boost.locale.icu=off')
+		$(usex mpi '' '--without-mpi')
+		$(usex nls '' '--without-locale')
+		$(usex context '' '--without-context --without-coroutine --without-fiber')
+		$(usex threads '' '--without-thread')
+		--without-stacktrace
+		--boost-build="${BROOT}"/usr/share/boost-build
+		--prefix="${ED}/usr"
+		--layout=system
+		# CMake has issues working with multiple python impls,
+		# disable cmake config generation for the time being
+		# https://github.com/boostorg/python/issues/262#issuecomment-483069294
+		--no-cmake-config
+		# building with threading=single is currently not possible
+		# https://svn.boost.org/trac/boost/ticket/7105
+		threading=multi
+		link=$(usex static-libs shared,static shared)
+		# this seems to be the only way to disable compression algorithms
+		# https://www.boost.org/doc/libs/1_70_0/libs/iostreams/doc/installation.html#boost-build
+		-sNO_BZIP2=$(usex bzip2 0 1)
+		-sNO_LZMA=$(usex lzma 0 1)
+		-sNO_ZLIB=$(usex zlib 0 1)
+		-sNO_ZSTD=$(usex zstd 0 1)
+	)
+
+	if [[ ${CHOST} == *-darwin* ]]; then
+		# We need to add the prefix, and in two cases this exceeds, so prepare
+		# for the largest possible space allocation.
+		append-ldflags -Wl,-headerpad_max_install_names
+	fi
+
+	# Use C++14 globally as of 1.62
+	append-cxxflags -std=c++14
+}
+
+multilib_src_compile() {
+	ejam "${OPTIONS[@]}" || die
+
+	if tools_needed; then
+		pushd tools >/dev/null || die
+		ejam \
+			"${OPTIONS[@]}" \
+			|| die "Building of Boost tools failed"
+		popd >/dev/null || die
+	fi
+}
+
+multilib_src_install_all() {
+	if ! use numpy; then
+		rm -r "${ED}"/usr/include/boost/python/numpy* || die
+	fi
+
+	if ! use python; then
+		rm -r "${ED}"/usr/include/boost/{python*,mpi/python*,parameter/aux_/python,parameter/python*} || die
+	fi
+
+	if ! use nls; then
+		rm -r "${ED}"/usr/include/boost/locale || die
+	fi
+
+	if ! use context; then
+		rm -r "${ED}"/usr/include/boost/context || die
+		rm -r "${ED}"/usr/include/boost/coroutine{,2} || die
+		rm "${ED}"/usr/include/boost/asio/spawn.hpp || die
+	fi
+
+	if use doc; then
+		# find extraneous files that shouldn't be installed
+		# as part of the documentation and remove them.
+		find libs/*/* \( -iname 'test' -o -iname 'src' \) -exec rm -rf '{}' + || die
+		find doc \( -name 'Jamfile.v2' -o -name 'build' -o -name '*.manifest' \) -exec rm -rf '{}' + || die
+		find tools \( -name 'Jamfile.v2' -o -name 'src' -o -name '*.cpp' -o -name '*.hpp' \) -exec rm -rf '{}' + || die
+
+		docinto html
+		dodoc *.{htm,html,png,css}
+		dodoc -r doc libs more tools
+
+		# To avoid broken links
+		dodoc LICENSE_1_0.txt
+
+		dosym ../../../../include/boost /usr/share/doc/${PF}/html/boost
+	fi
+}
+
+multilib_src_install() {
+	ejam \
+		"${OPTIONS[@]}" \
+		--includedir="${ED}/usr/include" \
+		--libdir="${ED}/usr/$(get_libdir)" \
+		install || die "Installation of Boost libraries failed"
+
+	pushd "${ED}/usr/$(get_libdir)" >/dev/null || die
+
+	local ext=$(get_libname)
+	if use threads; then
+		local f
+		for f in *${ext}; do
+			dosym ${f} /usr/$(get_libdir)/${f/${ext}/-mt${ext}}
+		done
+	fi
+
+	popd >/dev/null || die
+
+	if tools_needed; then
+		dobin dist/bin/*
+
+		insinto /usr/share
+		doins -r dist/share/boostbook
+	fi
+
+	# boost's build system truely sucks for not having a destdir.  Because for
+	# this reason we are forced to build with a prefix that includes the
+	# DESTROOT, dynamic libraries on Darwin end messed up, referencing the
+	# DESTROOT instread of the actual EPREFIX.  There is no way out of here
+	# but to do it the dirty way of manually setting the right install_names.
+	if [[ ${CHOST} == *-darwin* ]]; then
+		einfo "Working around completely broken build-system(tm)"
+		local d
+		for d in "${ED}"/usr/lib/*.dylib; do
+			if [[ -f ${d} ]]; then
+				# fix the "soname"
+				ebegin "  correcting install_name of ${d#${ED}}"
+				install_name_tool -id "/${d#${D}}" "${d}"
+				eend $?
+				# fix references to other libs
+				refs=$(otool -XL "${d}" | \
+					sed -e '1d' -e 's/^\t//' | \
+					grep "^libboost_" | \
+					cut -f1 -d' ')
+				local r
+				for r in ${refs}; do
+					ebegin "    correcting reference to ${r}"
+					install_name_tool -change \
+						"${r}" \
+						"${EPREFIX}/usr/lib/${r}" \
+						"${d}"
+					eend $?
+				done
+			fi
+		done
+	fi
+}
+
+pkg_preinst() {
+	# Yai for having symlinks that are nigh-impossible to remove without
+	# resorting to dirty hacks like these. Removes lingering symlinks
+	# from the slotted versions.
+	local symlink
+	for symlink in "${EROOT}"/usr/include/boost "${EROOT}"/usr/share/boostbook; do
+		if [[ -L ${symlink} ]]; then
+			rm -f "${symlink}" || die
+		fi
+	done
+
+	# some ancient installs still have boost cruft lying around
+	# for unknown reasons, causing havoc for reverse dependencies
+	# Bug: 607734
+	rm -rf "${EROOT}"/usr/include/boost-1_[3-5]? || die
+}
+
+pkg_postinst() {
+	elog "Boost.Regex is *extremely* ABI sensitive. If you get errors such as"
+	elog
+	elog "  undefined reference to \`boost::re_detail_$(ver_cut 1)0$(ver_cut 2)00::cpp_regex_traits_implementation"
+	elog "    <char>::transform_primary[abi:cxx11](char const*, char const*) const'"
+	elog
+	elog "Then you need you need to recompile Boost and all its reverse dependencies"
+	elog "using the same toolchain. In general, *every* change of the C++ toolchain"
+	elog "requires a complete rebuild of the boost-dependent ecosystem."
+	elog
+	elog "See for instance https://bugs.gentoo.org/638138"
+}