sci-libs/libigl: new ebuild

Signed-off-by: Dennis Lamm <expeditioneer@gentoo.org>
Closes: https://github.com/gentoo/gentoo/pull/18638
Signed-off-by: Dennis Lamm <expeditioneer@gentoo.org>

sci-libs/libigl/Manifest

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+DIST libigl-2.2.0.tar.gz 976859 BLAKE2B c32f3352735af631efc1a1c3eb598d94d845de61519346f91e9d3bbed3cc267c8b3fc70071b5a13bdc5d35624c8b271c056d3202dd6c8ec65dd24c4ea78885d9 SHA512 d2b091ccbad7b1e4305ac75b82d7bcb12d22e0c6f356ae21c2cc3006fc6404f0b738d394d6b008612e12a473698997c605db91a9b042bb4ec3c5ed18fea50029

sci-libs/libigl/libigl-2.2.0.ebuild

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+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+DESCRIPTION="A simple C++ geometry processing library"
+HOMEPAGE="https://libigl.github.io/"
+SRC_URI="https://github.com/libigl/libigl/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="static-libs"
+
+DEPEND="dev-cpp/eigen:3"
+
+RDEPEND="${DEPEND}"
+
+src_configure() {
+	local mycmakeargs=(
+		-DLIBIGL_BUILD_TESTS=OFF
+		-DLIBIGL_BUILD_TUTORIALS=OFF
+		-DLIBIGL_SKIP_DOWNLOAD=ON
+		-DLIBIGL_USE_STATIC_LIBRARY=$(usex static-libs)
+		-DLIBIGL_WITH_CGAL=OFF
+		-DLIBIGL_WITH_COMISO=OFF
+		-DLIBIGL_WITH_EMBREE=OFF
+		-DLIBIGL_WITH_MATLAB=OFF
+		-DLIBIGL_WITH_MOSEK=OFF
+		-DLIBIGL_WITH_OPENGL=OFF
+		-DLIBIGL_WITH_OPENGL_GLFW=OFF
+		-DLIBIGL_WITH_OPENGL_GLFW_IMGUI=OFF
+		-DLIBIGL_WITH_PNG=OFF
+		-DLIBIGL_WITH_PREDICATES=OFF
+		-DLIBIGL_WITH_PYTHON=OFF
+		-DLIBIGL_WITH_TETGEN=OFF
+		-DLIBIGL_WITH_TRIANGLE=OFF
+		-DLIBIGL_WITH_XML=OFF
+	)
+	cmake_src_configure
+}
+
+src_install() {
+		cmake_src_install
+
+		# Install won't install all headers
+		insinto /usr/include/
+		doins -r include/igl
+}

sci-libs/libigl/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>3dprint@gentoo.org</email>
+		<name>Gentoo 3D Printer Project</name>
+	</maintainer>
+	<longdescription>
+		ibigl is a simple C++ geometry processing library with a wide functionality including construction of sparse
+		discrete differential geometry operators and finite-elements matrices such as the cotangent Laplacian and
+		diagonalized mass matrix, simple facet and edge-based topology data structures, mesh-viewing utilities for
+		OpenGL and GLSL, and many core functions for matrix manipulation which make Eigen feel a lot more like MATLAB.
+	</longdescription>
+	<upstream>
+		<remote-id type="github">libigl/libigl</remote-id>
+	</upstream>
+</pkgmetadata>