dev-ruby/matrix: import of 0.4.2

Extracted from dev-lang/ruby, keywords set accordingly.

Package-Manager: Portage-3.0.20, Repoman-3.0.3
Signed-off-by: Hans de Graaff <graaff@gentoo.org>

dev-ruby/matrix/Manifest

@@ -0,0 +1 @@
+DIST matrix-0.4.2.tar.gz 42649 BLAKE2B 03b7f3482d6d5a48c626fee824039c182a35242a2c25875e7cada4d781d1939ed780b5cbf8c45645d07c81e4f5d5c5559a1ec236a5152e095a60228e4ed3c59e SHA512 b47d1d662acdca703afd323fe9293726e051b0ef87162ff45c26c62fad2f3158f71d943f36f7c6706702885e2fdea8483b37ee45f25295225e86dec5f88590a4

dev-ruby/matrix/matrix-0.4.2.ebuild

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+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+USE_RUBY="ruby26 ruby27 ruby30"
+
+RUBY_FAKEGEM_EXTRADOC="CHANGELOG.md README.md"
+
+RUBY_FAKEGEM_BINWRAP=""
+RUBY_FAKEGEM_GEMSPEC="${PN}.gemspec"
+
+inherit ruby-fakegem
+
+DESCRIPTION="An implementation of Matrix and Vector classes"
+HOMEPAGE="https://github.com/ruby/matrix"
+SRC_URI="https://github.com/ruby/matrix/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="BSD-2"
+
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+SLOT="$(ver_cut 1)"
+
+all_ruby_prepare() {
+	sed -i -e 's:require_relative ":require "./:' -e 's/__dir__/"."/' ${RUBY_FAKEGEM_GEMSPEC} || die
+	sed -i -e '/bundler/I s:^:#:' Rakefile || die
+}

dev-ruby/matrix/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="project">
+    <email>ruby@gentoo.org</email>
+    <name>Gentoo Ruby Project</name>
+  </maintainer>
+</pkgmetadata>