sci-libs/ButterflyPACK: new package, add 2.1.0

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

sci-libs/ButterflyPACK/ButterflyPACK-2.1.0.ebuild

@@ -0,0 +1,44 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake fortran-2
+
+DESCRIPTION="Mathematical software for solving large-scale dense linear systems"
+HOMEPAGE="https://github.com/liuyangzhuan/ButterflyPACK"
+SRC_URI="https://github.com/liuyangzhuan/${PN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+KEYWORDS="~amd64"
+LICENSE="BSD"
+SLOT="0"
+IUSE="arpack magma"
+
+RDEPEND="
+	sci-libs/scalapack
+	virtual/blas
+	virtual/lapack
+	virtual/mpi
+
+	arpack? ( sci-libs/arpack )
+	magma? ( sci-libs/magma )
+"
+DEPEND="${RDEPEND}"
+
+DOCS=( README.md CHANGELOG )
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+
+		-DTPL_ARPACK_LIBRARIES=$(usex arpack)
+		-DTPL_MAGMA_LIBRARIES=$(usex magma)
+	)
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	insinto "/usr/share/octave/site/m/${PN}"
+	doins -r MATLAB/*
+}