# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=boost
pkgver=1.71.0
_pkgver="${pkgver//./_}"
pkgrel=1
pkgdesc="Free peer-reviewed portable C++ source libraries"
url="http://www.boost.org/"
arch="all"
license="custom"
depends="$pkgname-libs"
depends_dev="$pkgname linux-headers"
makedepends="$depends_dev python2-dev>=2.6 python3-dev>=3.8 flex bison bzip2-dev icu-dev xz-dev zlib-dev"
subpackages="$pkgname-static $pkgname-dev $pkgname-doc"
source="https://dl.bintray.com/boostorg/release/$pkgver/source/boost_$_pkgver.tar.bz2
	boost-1.57.0-python-abi_letters.patch
	boost-1.57.0-python-libpython_dep.patch
	"
options="!checkroot"
builddir="$srcdir/${pkgname}_$_pkgver"

_enginedir="tools/build/src/engine"
_bjam="$builddir"/$_enginedir/b2

_libs="
	atomic
	chrono
	container
	context
	contract
	coroutine
	date_time
	fiber
	filesystem
	graph
	iostreams
	locale
	log_setup
	log
	math
	prg_exec_monitor
	program_options
	python3
	python2
	random
	regex
	serialization
	stacktrace_basic
	stacktrace_noop
	system
	thread
	timer
	type_erasure
	unit_test_framework
	wave
	wserialization
	"
for _lib in $_libs; do
	subpackages="$subpackages $pkgname-${_lib}:_boostlib"
done; unset -v _lib
subpackages="$subpackages $pkgname-libs"

_set_options() {
	[ -n "$PY2_VERSION" ] || PY2_VERSION="$(_pyversion python2)"
	[ -n "$PY3_VERSION" ] || PY3_VERSION="$(_pyversion python3)"

	local _options_python="${PY2_VERSION:+$PY2_VERSION,}$PY3_VERSION"
	[ -z "$_options_python" ] || _options_python="python=$_options_python"

	_options="
		--user-config=\"$builddir/user-config.jam\"
		--prefix=\"$pkgdir/usr\"
		release
		$_options_python
		toolset=gcc
		debug-symbols=off
		threading=multi
		runtime-link=shared
		link=shared,static
		cflags=-fno-strict-aliasing
		--layout=system
		-q
		-j${JOBS:-2}
		$_options_carch
		"
}

prepare() {
	default_prepare

	_set_options
	local abiflags="$(python3-config --abiflags)"

	# create user-config.jam
	cat > user-config.jam <<-__EOF__

	using gcc : : $CC : <cxxflags>"$CXXFLAGS" <linkflags>"$LDFLAGS" ;
	using python : ${PY2_VERSION:+$PY2_VERSION }: /usr/bin/python2 : ${PY2_VERSION:+/usr/include/python${PY2_VERSION} }: : : : ;
	using python : ${PY3_VERSION:+$PY3_VERSION }: /usr/bin/python3 : ${PY3_VERSION:+/usr/include/python${PY3_VERSION}${abiflags} }: : : : ${abiflags:+$abiflags };

	__EOF__
}

build() {
	export BOOST_ROOT="$builddir"

	msg "Building bjam"
	cd "$builddir"/$_enginedir
	CC= ./build.sh gcc

	msg "Building bcp"
	cd "$builddir"/tools/bcp
	"$_bjam" -j${JOBS:-2}

	msg "Building boost"
	cd "$builddir"
	_set_options
	"$_bjam" $_options
}

check() {
	cd "$builddir"/tools/build/test

	PATH="${_bjam%/*}:$PATH" python2 test_all.py --default-bjam
}

package() {
	export BOOST_ROOT="$builddir"
	_set_options

	install -Dm755 "$_bjam" \
		"$pkgdir"/usr/bin/b2
	ln -s b2 "$pkgdir"/usr/bin/bjam # old name for b2 binary

	install -Dm755 dist/bin/bcp "$pkgdir"/usr/bin/bcp

	install -Dm644 LICENSE_1_0.txt \
		"$pkgdir"/usr/share/licenses/$pkgname/LICENSE_1_0.txt

	"$pkgdir"/usr/bin/bjam $_options \
		--includedir="$pkgdir"/usr/include \
		--libdir="$pkgdir"/usr/lib \
		install
}

static() {
	pkgdesc="Boost static libraries"
	depends="$depends_static"

	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/lib*.a "$subpkgdir"/usr/lib/
}

_boostlib() {
	local name="${subpkgname#$pkgname-}"
	pkgdesc="Boost $name shared library"
	depends="$depends__boostlib"

	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/libboost_$name*.so.[0-9]* "$subpkgdir"/usr/lib/
}

libs() {
	default_libs

	pkgdesc="Boost shared libraries"
	depends="$depends_libs"
	local _pkg; for _pkg in $origsubpackages; do
		case "$_pkg" in
			*:_boostlib) depends="$depends ${_pkg%%:*}" ;;
		esac
	done

	mkdir -p "$subpkgdir"
	rmdir "$pkgdir"/usr/lib >/dev/null 2>&1 || :
}

_pyversion() {
	"$1" -c 'import sys; print("%i.%i" % (sys.version_info.major, sys.version_info.minor))'
}

sha512sums="b7937d50c4512cf13cadd0ca829de36cf2cbc6fb788f45b1d4565ad0753e2b206c545125a5862016c2f16016f2e4a6b687928963b466fff17c3e0a4437142c20  boost_1_71_0.tar.bz2
d96d4d37394a31764ed817d0bc4a99cffa68a75ff1ecfd4417b9e1e5ae2c31a96ed24f948c6f2758ffdac01328d2402c4cf0d33a37107e4f5f721e636daebd66  boost-1.57.0-python-abi_letters.patch
132c4b62815d605c2d3c9038427fa4f422612a33711d47b2862f2311516af8a371d6b75bf078a7bffe20be863f8d21fb9fe74dc1a1bac3a10d061e9768ec3e02  boost-1.57.0-python-libpython_dep.patch"