Install this version:
emerge -a =dev-util/gdmd-12.20250807
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-util/gdmd-12.20250807
Or alternatively:
emerge --autounmask-write -a =dev-util/gdmd-12.20250807
# Copyright 2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DESCRIPTION="Don't use this package, use dev-util/gdmd:0"
HOMEPAGE="https://www.gdcproject.org/"
S="${WORKDIR}"
LICENSE="GPL-3+"
SLOT="$(ver_cut 1)"
KEYWORDS="~amd64 ~arm64 ~x86"
RESTRICT="test"
date=$(ver_cut 2)
RDEPEND=">=dev-util/gdmd-${date}:0[dlang_targets_gdc-${SLOT}(-)]"
>=dev-util/gdmd-$(ver_cut:0[dlang_targets_gdc-$(ver_cut 1)(-)]