Install this version:
emerge -a =app-emulation/rmg-9999
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =app-emulation/rmg-9999
Or alternatively:
emerge --autounmask-write -a =app-emulation/rmg-9999
# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DESCRIPTION="Rosalie's Mupen GUI"
HOMEPAGE="https://github.com/Rosalie241/RMG"
inherit cmake git-r3
EGIT_REPO_URI="${HOMEPAGE}.git"
LICENSE="GPL-3"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~ppc"
IUSE=""
DEPEND=""
RDEPEND="${DEPEND} dev-libs/hidapi media-libs/libsamplerate media-libs/speexdsp sys-libs/zlib[minizip] media-libs/libsdl3 media-libs/freetype =dev-qt/qtbase-6* dev-qt/qtsvg dev-qt/qtwebsockets"
BDEPEND="dev-vcs/git dev-lang/nasm dev-util/cmake dev-util/vulkan-headers"
src_configure() {
#mkdir ${S}/build
local mycmakeargs=(
-S .
-DCMAKE_BUILD_TYPE="Release"
-DPORTABLE_INSTALL="OFF"
-DCMAKE_INSTALL_PREFIX="${D}/usr"
)
# export src_dir="$(pwd)"
# export build_dir="$(pwd)/build"
# mkdir -p "$build_dir"
# cmake -S "$src_dir" -B "$build_dir" -DCMAKE_BUILD_TYPE="Release" -DPORTABLE_INSTALL="OFF" -DCMAKE_INSTALL_PREFIX="/usr" -G "Ninja"
# cmake --build "$build_dir"
# cmake --install "$build_dir" --prefix="/usr"
cmake_src_configure
}
dev-libs/hidapi media-libs/libsamplerate media-libs/speexdsp sys-libs/zlib[minizip] media-libs/libsdl3 media-libs/freetype =dev-qt/qtbase-6* dev-qt/qtsvg dev-qt/qtwebsockets
dev-vcs/git dev-lang/nasm dev-util/cmake dev-util/vulkan-headers