sys-boot/limine: add rv64 support

Signed-off-by: Arsen Arsenović <arsen@gentoo.org>

sys-boot/limine/limine-5.20231103.0-r1.ebuild

@@ -0,0 +1,44 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DESCRIPTION="Limine is a modern, advanced, and portable BIOS/UEFI multiprotocol bootloader"
+HOMEPAGE="https://limine-bootloader.org/"
+SRC_URI="https://github.com/limine-bootloader/limine/releases/download/v${PV}/limine-${PV}.tar.xz"
+
+LICENSE="BSD-2"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="+bios +bios-pxe +bios-cd +cd-efi +uefi32 +uefi64 +uefiaa64 +uefirv64"
+
+MY_LLVM_TARGETS="AArch64 ARM X86 RISCV"
+MY_LLVM_FLAGS="llvm_targets_${MY_LLVM_TARGETS// /(-),llvm_targets_}(-)"
+
+BDEPEND="
+	app-alternatives/gzip
+	dev-lang/nasm
+	sys-apps/findutils
+	sys-devel/clang[${MY_LLVM_FLAGS}]
+	sys-devel/lld
+	sys-devel/llvm[${MY_LLVM_FLAGS}]
+
+	cd-efi? ( sys-fs/mtools )
+"
+
+src_configure() {
+	local myconf=(
+		"$(use_enable bios)"
+		"$(use_enable bios-cd)"
+		"$(use_enable bios-pxe)"
+
+		"$(use_enable uefi32 uefi-ia32)"
+		"$(use_enable uefi64 uefi-x86-64)"
+		"$(use_enable uefiaa64 uefi-aarch64)"
+		"$(use_enable uefirv64 uefi-riscv64)"
+		"$(use_enable cd-efi uefi-cd)"
+	)
+
+	TOOLCHAIN_FOR_TARGET=llvm \
+	econf "${myconf[@]}"
+}

sys-boot/limine/metadata.xml

@@ -18,6 +18,9 @@
     <flag name="uefiaa64">
       Enable AArch64 UEFI support.
     </flag>
+    <flag name="uefirv64">
+      Enable 64-bit RISC-V UEFI support.
+    </flag>
     <flag name="cd-efi">
         Enable building cd-efi.bin using <pkg>sys-fs/mtools</pkg>.
         This flag was previously known as eltorito-efi.