sys-kernel/zenpower3: add 9999 package

The upstream used in the versioned zenpower3 package is dead. The best fix would be to fallback to live, and use the original upstream (0.2.0 was using a fork of zenpower).

Signed-off-by: kernaltrap <kernaltrap@gmail.com>

sys-kernel/zenpower3/files/zenpower3-9999-use-symlink-to-detect-kernel-version.patch

@@ -0,0 +1,9 @@
+--- a/Makefile	2024-12-27 20:38:15.878880229 -0600
++++ b/Makefile	2024-12-27 20:38:36.776225483 -0600
+@@ -1,5 +1,5 @@
+ VERSION         := 0.1.12
+-TARGET          := $(shell uname -r)
++TARGET          ?= $(shell uname -r)
+ DKMS_ROOT_PATH  := /usr/src/zenpower-$(VERSION)
+ 
+ KERNEL_MODULES	:= /lib/modules/$(TARGET)

sys-kernel/zenpower3/zenpower3-0.2.0.ebuild

@@ -9,7 +9,6 @@ DESCRIPTION="Linux kernel driver for reading sensors of AMD Zen family CPUs"
 HOMEPAGE="https://git.exozy.me/a/zenpower3"
 SRC_URI="https://git.exozy.me/a/zenpower3/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 S="${WORKDIR}/${PN}"
-
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64"

sys-kernel/zenpower3/zenpower3-9999.ebuild

@@ -0,0 +1,38 @@
+# Copyright 2020-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit linux-mod-r1
+
+DESCRIPTION="Linux kernel driver for reading sensors of AMD Zen family CPUs"
+HOMEPAGE="https://git.exozy.me/a/zenpower3"
+if [[ ${PV} -eq 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/ocerman/zenpower"
+	S="${WORKDIR}/${PN}-9999"
+else
+	SRC_URI="https://git.exozy.me/a/zenpower3/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	S="${WORKDIR}/${PN}"
+fi
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64"
+
+CONFIG_CHECK="HWMON PCI AMD_NB"
+
+PATCHES="${FILESDIR}/${P}-use-symlink-to-detect-kernel-version.patch"
+
+src_compile() {
+	export TARGET=${KV_FULL}
+	local modlist=(
+		zenpower=misc:::all
+	)
+	linux-mod-r1_src_compile
+}
+
+src_install() {
+	linux-mod-r1_src_install
+	dodoc README.md
+}