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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit autotools multilib-minimal preserve-libs

DESCRIPTION="Perl-compatible regular expression library"
HOMEPAGE="http://www.pcre.org/"
MY_P="pcre-${PV/_rc/-RC}"
if [[ ${PV} != *_rc* ]] ; then
	# Only the final releases are available here.
	SRC_URI="
		https://downloads.sourceforge.net/pcre/${MY_P}.tar.bz2
		https://ftp.pcre.org/pub/pcre/${MY_P}.tar.bz2
		ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/${MY_P}.tar.bz2
	"
else
	SRC_URI="ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/Testing/${MY_P}.tar.bz2"
fi

S="${WORKDIR}/${MY_P}"

LICENSE="BSD"
SLOT="3"
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="bzip2 +cxx +jit libedit pcre16 pcre32 +readline static-libs unicode valgrind zlib"
REQUIRED_USE="
	readline? ( !libedit )
	libedit? ( !readline )
"

RDEPEND="
	bzip2? ( app-arch/bzip2 )
	zlib? ( sys-libs/zlib )
	libedit? ( dev-libs/libedit )
	readline? ( sys-libs/readline:= )
"
DEPEND="
	${RDEPEND}
	valgrind? ( dev-debug/valgrind )
"
BDEPEND="virtual/pkgconfig"

MULTILIB_CHOST_TOOLS=(
	/usr/bin/pcre-config
)

PATCHES=(
	"${FILESDIR}"/${PN}-8.45-fix-stack-size-detection.patch
)

src_prepare() {
	default

	sed -i -e "s:-lpcre ::" libpcrecpp.pc.in || die

	# We do a full autoreconf because:
	# - the software is end of life and never getting new dist tarballs
	# - it uses a frankensteined "2.4.6.42-b88ce-dirty" libtool, which
	#   means elibtoolize can't find patches to apply
	eautoreconf
}

multilib_src_configure() {
	local myeconfargs=(
		$(multilib_native_use_enable bzip2 pcregrep-libbz2)
		$(use_enable cxx cpp)
		$(use_enable jit)
		$(use_enable jit pcregrep-jit)
		$(use_enable pcre16)
		$(use_enable pcre32)
		$(multilib_native_use_enable libedit pcretest-libedit)
		$(multilib_native_use_enable readline pcretest-libreadline)
		$(use_enable static-libs static)
		$(use_enable unicode utf)
		$(use_enable unicode unicode-properties)
		$(multilib_native_use_enable valgrind)
		$(multilib_native_use_enable zlib pcregrep-libz)

		--enable-pcre8
		--enable-shared
	)

	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
}

multilib_src_compile() {
	emake V=1 $(multilib_is_native_abi || echo "bin_PROGRAMS=")
}

multilib_src_install() {
	emake \
		DESTDIR="${D}" \
		$(multilib_is_native_abi || echo "bin_PROGRAMS= dist_html_DATA=") \
		install
}

multilib_src_install_all() {
	find "${ED}" -type f -name "*.la" -delete || die
}

pkg_preinst() {
	preserve_old_lib /$(get_libdir)/libpcre.so.0
}

pkg_postinst() {
	preserve_old_lib_notify /$(get_libdir)/libpcre.so.0
}