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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit autotools flag-o-matic toolchain-funcs

DESCRIPTION="GNU Linear Programming Kit"
HOMEPAGE="https://www.gnu.org/software/glpk/"
SRC_URI="mirror://gnu/${PN}/${P}.tar.gz"

LICENSE="GPL-3"
SLOT="0/40"
KEYWORDS="~alpha amd64 ~arm ~arm64 ~hppa ~ia64 ppc ppc64 sparc x86 ~amd64-linux ~x86-linux ~x86-macos"
IUSE="doc examples gmp odbc mysql"

BDEPEND="virtual/pkgconfig"
DEPEND="
	sci-libs/amd:0=
	sci-libs/colamd:=
	sys-libs/zlib:0=
	gmp? ( dev-libs/gmp:0= )
	mysql? ( dev-db/mysql-connector-c )
	odbc? (
		|| (
			dev-db/libiodbc:0
			dev-db/unixODBC:0
		)
	)"
RDEPEND="${DEPEND}"

PATCHES=(
	"${FILESDIR}"/${PN}-4.65-fix-mysql-include-prefix.patch
	"${FILESDIR}"/${PN}-4.65-debundle-system-libs.patch
	"${FILESDIR}"/${PN}-4.65-longstep_verbosity.patch
)

src_prepare() {
	# TODO: the ODBC library is dlopen()ed, so we only want to append
	# -I<foo> to the preprocessor flags, and not all of the CFLAGS that
	# were used to build libiodbc. That fix and the pkg-config fallback
	# should be sent upstream, and placed into CPPFLAGS rather than
	# CFLAGS (as configure.ac does now).
	use odbc && [[ -z $(type -P odbc_config) ]] && \
		append-cppflags $($(tc-getPKG_CONFIG) --cflags libiodbc)

	default
	eautoreconf
}

src_configure() {
	local myconf
	if use mysql || use odbc; then
		myconf="--enable-dl"
	else
		myconf="--disable-dl"
	fi

	econf ${myconf} \
		--disable-static \
		$(use_enable mysql) \
		$(use_enable odbc) \
		$(use_with gmp)
}

src_install() {
	default
	if use examples; then
		insinto "/usr/share/doc/${PF}"
		doins -r examples
		docompress -x "/usr/share/doc/${PF}/examples"
	fi
	use doc && dodoc doc/*.pdf doc/notes/*.pdf doc/*.txt

	# no static archives
	find "${D}" -name '*.la' -delete || die
}