# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit multilib toolchain-funcs

MY_PN="${PN}src"

DESCRIPTION="Uncompress rar files"
HOMEPAGE="https://www.rarlab.com/rar_add.htm"
SRC_URI="https://www.rarlab.com/rar/${MY_PN}-${PV}.tar.gz -> ${P}.tar.gz"
S="${WORKDIR}/unrar"

LICENSE="unRAR"
SLOT="0/6" # subslot = soname version
KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"

PATCHES=( "${FILESDIR}/${PN}-6.2.6-honor-flags.patch" )

src_prepare() {
	default

	local sed_args=( -e "/libunrar/s:.so:$(get_libname ${PV%.*.*}):" )
	if [[ ${CHOST} == *-darwin* ]] ; then
		sed_args+=( -e "s:-shared:-dynamiclib -install_name ${EPREFIX}/usr/$(get_libdir)/libunrar$(get_libname ${PV%.*.*}):" )
	else
		sed_args+=( -e "s:-shared:& -Wl,-soname -Wl,libunrar$(get_libname ${PV%.*.*}):" )
	fi
	sed -i "${sed_args[@]}" makefile || die
}

src_configure() {
	mkdir -p build-{lib,bin} || die
	printf 'VPATH = ..\ninclude ../makefile' > build-lib/Makefile || die
	cp build-{lib,bin}/Makefile || die
}

src_compile() {
	unrar_make() {
		emake AR="$(tc-getAR)" CXX="$(tc-getCXX)" CXXFLAGS="${CXXFLAGS}" STRIP=true "$@"
	}

	unrar_make CXXFLAGS+=" -fPIC" -C build-lib lib
	ln -s libunrar$(get_libname ${PV%.*.*}) build-lib/libunrar$(get_libname) || die
	ln -s libunrar$(get_libname ${PV%.*.*}) build-lib/libunrar$(get_libname ${PV}) || die

	unrar_make -C build-bin
}

src_install() {
	dobin build-bin/unrar
	dodoc readme.txt

	dolib.so build-lib/libunrar*

	# unrar doesn't officially install headers, but unofficially, software
	# depends on it anyway. There is no standard for where to install them,
	# but the most common location (shared by nearly all vendors) is "unrar".
	# FreeBSD alone uses "libunrar". Gentoo formerly used "libunrar6" and
	# had a compat symlink for FreeBSD, then passed the compat location in
	# ./configure scripts e.g. for sys-fs/rar2fs. Software in the wild
	# seems to expect either "unrar" or "libunrar".
	# See: https://bugs.gentoo.org/916036
	#
	# We now use the "standard" (hah) location, and keep the compat symlink but
	# change the destination. The version-suffixed location lacks utility, but
	# we would keep it if we could, just in case -- unfortunately portage is
	# buggy: https://bugs.gentoo.org/834600
	#
	# Hopefully, no one has ever actually used it and therefore this does not
	# matter. The odds are on our side, since it periodically changed location
	# arbitrarily.
	insinto /usr/include/unrar
	doins *.hpp
	dosym unrar /usr/include/libunrar

	find "${ED}" -type f -name "*.a" -delete || die
}