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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit autotools flag-o-matic

DESCRIPTION="Extracts models of the Point Spread Function from FITS images"
HOMEPAGE="http://www.astromatic.net/software/psfex"
SRC_URI="http://www.astromatic.net/download/${PN}/${P}.tar.gz"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"

LICENSE="GPL-3"
SLOT="0"
IUSE="doc threads plplot"

BDEPEND="virtual/pkgconfig"
RDEPEND="
	sci-libs/atlas:0[lapack,threads=]
	sci-libs/fftw:3.0
	plplot? ( sci-libs/plplot:= )"
DEPEND="${RDEPEND}"

PATCHES=(
	"${FILESDIR}/${P}-have-mmap.patch"
	"${FILESDIR}/${P}-plplot510.patch"
	"${FILESDIR}/${P}-sigbus.patch"
)

src_prepare() {
	default

	local mycblas=atlcblas myclapack=atlclapack

	if use threads; then
		[[ -e "${EPREFIX}"/usr/$(get_libdir)/libptcblas.so ]] && \
			mycblas=ptcblas
		[[ -e "${EPREFIX}"/usr/$(get_libdir)/libptclapack.so ]] &&
		myclapack=ptclapack
	fi

	# fix the configure and not the acx_atlas.m4. the eautoreconf will
	# produce a configure giving  a wrong install Makefile target (to fix)
	sed -e "s/-lcblas/-l${mycblas}/g" \
		-e "s/AC_CHECK_LIB(cblas/AC_CHECK_LIB(${mycblas}/g" \
		-e "s/-llapack/-l${myclapack}/g" \
		-e "s/\(lapack_lib=\).*/\1${myclapack}/g" \
		-e "s/AC_CHECK_LIB(lapack/AC_CHECK_LIB(${myclapack}/g" \
		-i acx_atlas.m4 || die

	# fix for newer plplot
	sed -e 's/plplotd/plplot/g' -i acx_plplot.m4 || die
	eautoreconf
}

src_configure() {
	# bug #724588
	append-cflags "-fcommon"

	econf \
		--with-atlas-incdir="${EPREFIX}/usr/include/atlas" \
		$(use_enable plplot) \
		$(use_enable threads)
}

src_install() {
	default
	use doc && dodoc doc/*
}