sci-libs/nlopt: new revision with subslot dependency on sci-math/octave.

With USE=octave, NLopt builds a *.oct interface using mkoctfile, and
that requires a rebuild when Octave is upgraded.

Closes: https://bugs.gentoo.org/869863
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>

sci-libs/nlopt/nlopt-2.7.1-r2.ebuild

@@ -0,0 +1,111 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..10} )
+
+inherit python-r1 cmake fortran-2
+
+DESCRIPTION="Non-linear optimization library"
+HOMEPAGE="https://github.com/stevengj/nlopt"
+SRC_URI="https://github.com/stevengj/nlopt/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="LGPL-2.1 MIT"
+KEYWORDS="~amd64 ~arm64 ~x86 ~amd64-linux ~x86-linux"
+SLOT="0"
+IUSE="cxx guile octave python test"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	guile? ( dev-scheme/guile:* )
+	octave? ( >=sci-mathematics/octave-6:= )
+	python? (
+		${PYTHON_DEPS}
+		dev-python/numpy[${PYTHON_USEDEP}]
+	)
+	"
+DEPEND="${RDEPEND}"
+BDEPEND="python? ( dev-lang/swig )"
+
+src_prepare() {
+	cmake_src_prepare
+
+	use python && python_copy_sources
+}
+
+src_configure() {
+	# MATLAB detection causes problems (as in bug 826774) if we don't
+	# explicitly disable it.
+	local mycmakeargs=(
+		-DNLOPT_CXX=$(usex cxx)
+		-DNLOPT_FORTRAN=$(usex test)
+		-DNLOPT_GUILE=$(usex guile)
+		-DNLOPT_OCTAVE=$(usex octave)
+		-DNLOPT_MATLAB=OFF
+		-DNLOPT_PYTHON=OFF
+		-DNLOPT_SWIG=$(usex python)
+		-DNLOPT_TESTS=$(usex test)
+	)
+
+	cmake_src_configure
+
+	if use python; then
+		python_configure() {
+			local mycmakeargs=(
+				${mycmakeargs[@]}
+				-DNLOPT_PYTHON=ON
+				-DINSTALL_PYTHON_DIR="$(python_get_sitedir)"
+			)
+
+			cmake_src_configure
+		}
+
+		python_foreach_impl run_in_build_dir python_configure
+	fi
+}
+
+src_compile() {
+	cmake_src_compile
+
+	if use python; then
+		python_foreach_impl run_in_build_dir cmake_src_compile
+	fi
+}
+
+src_test() {
+	do_test() {
+		local a f
+		cd "${BUILD_DIR}"/test
+		for a in {1..$(usex cxx 9 7)}; do
+			for f in {5..9}; do
+				./testopt -a $a -o $f || die "algorithm $a function $f failed"
+			done
+		done
+	}
+
+	do_test
+
+	if use python; then
+		python_foreach_impl run_in_build_dir do_test
+	fi
+}
+
+nlopt_install() {
+	cmake_src_install
+	python_optimize
+}
+
+src_install() {
+	cmake_src_install
+
+	if use python; then
+		python_foreach_impl run_in_build_dir nlopt_install
+	fi
+
+	local r
+	for r in */README; do
+		newdoc ${r} README.$(dirname ${r})
+	done
+}