app-emulation/box86: new package, add 0.3.0

Signed-off-by: Richard-Rogalski <rrogalski@tutanota.com>

app-emulation/box86/Manifest

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+DIST box86-0.3.0.tar.gz 3175056 BLAKE2B 4fdef0301a53278da82eb18f235c38694d3d5b59c1386e4be14f6efd676499c5082c061f56fe9222f5994f7f043a0aa82019c42bf9b867ab8215c11ed3782f82 SHA512 133957b5b3194a034f383dd2cba503797468b973127b10b3a4bac458e1dce43b4f61efd4ff9ad0cabf7935f9b34a5287cbf3b9fee8c40c9b4bfbe206b0566957

app-emulation/box86/box86-0.3.0.ebuild

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+# Copyright 2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake optfeature flag-o-matic
+
+DESCRIPTION="Linux Userspace x86 Emulator with a twist"
+HOMEPAGE="https://box86.org"
+SRC_URI="https://github.com/ptitSeb/${PN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~arm ~arm64"
+IUSE="aot"
+REQUIRED_USE="aot? ( || ( arm arm64 ) )" #depends on NEON, VFPv3, and non-thumb ABI, I see no good way to check
+
+DEPEND=""
+RDEPEND="${DEPEND}"
+BDEPEND=""
+
+src_configure() {
+	local -a mycmakeargs=(
+		-DNOGIT=1
+		-DARM_DYNAREC=$(usex aot)
+	)
+
+	use amd64 && mycmakeargs+=( -DLD80BITS=1 -DNOALIGN=1 )
+
+	append-flags "-m32"
+
+	cmake_src_configure
+}
+
+pkg_postinst() {
+	optfeature "OpenGL for GLES devices" \
+		"media-libs/gl4es"
+}

app-emulation/box86/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="person">
+		<email>rrogalski@tutanota.com</email>
+		<name>Richard Rogalski</name>
+	</maintainer>
+
+	<use>
+		<flag name="aot">Enables the dynamic ahead of time recompiler for increased performance on ARM</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">ptitSeb/box86</remote-id>
+	</upstream>
+</pkgmetadata>