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EAPI=8

CMAKE_MAKEFILE_GENERATOR="emake"
inherit cmake fortran-2

MY_P="${P}"
DESCRIPTION="CERN program library for High Energy Physics"
HOMEPAGE="https://cernlib.web.cern.ch/cernlib/"
SRC_URI="
	free? ( https://cernlib.web.cern.ch/download/2023_source/tar/${P}-free.tar.gz )
	!free? ( https://cernlib.web.cern.ch/download/2023_source/tar/${P}.tar.gz )
"

LICENSE="
	free? ( BSD LGPL-2+ GPL-1+ )
	!free? ( all-rights-reserved )
"
SLOT="0"
KEYWORDS="~amd64"
IUSE="+free"
RESTRICT="mirror"

RDEPEND="
	x11-libs/motif:0
	x11-libs/libXaw
	x11-libs/libXau
	virtual/lapack
	dev-lang/cfortran
	x11-libs/xbae
	net-libs/libnsl
	virtual/libcrypt:=
"
DEPEND="${RDEPEND}"
BDEPEND="
	virtual/pkgconfig
"

PATCHES=(
	"${FILESDIR}"/${P}-cfortran.patch
	"${FILESDIR}"/${P}-ctest.patch
	"${FILESDIR}"/${P}-man.patch
)

src_unpack() {
	default
	if use free; then
		mv ${P}-free ${P} || die
	fi
}

src_prepare() {
	cmake_src_prepare
	# cfortran.patch
	# Remove cfortran.h since it is already installed from dev-lang/cfortran
	# thereby we avoid collisions if e.g. sci-physics/root[fortran] is installed.
	rm cfortran/cfortran.h || die
}

src_configure() {
	# docs follow rpm like spliting into packages cernlib, cernlib-devel, etc.
	# we move them into a folder that agrees with gentoo doc structure.
	sed -i "s#/doc/#/doc/${PF}/#g" CMakeLists.txt || die
	cmake_src_configure
}

src_install() {
	cmake_src_install
	# man.patch
	# The CMakeLists.txt already compresses the manual before install
	# therefore we install it manually and avoid QA problems.
	doman contrib/man/man1/*.1
	doman contrib/man/man8/*.8
}