From 0553e130788c33c3e297548725773ca21d603d19 Mon Sep 17 00:00:00 2001
From: Michał Górny <mgorny@gentoo.org>
Date: Mon, 5 Dec 2022 20:50:55 +0100
Subject: app-alternatives/gzip: Use app-alternatives.eclass
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
 app-alternatives/gzip/gzip-0.ebuild | 47 ++++++++++++++++++-------------------
 1 file changed, 23 insertions(+), 24 deletions(-)

diff --git a/app-alternatives/gzip/gzip-0.ebuild b/app-alternatives/gzip/gzip-0.ebuild
index 29e0808da453..77090242607d 100644
--- a/app-alternatives/gzip/gzip-0.ebuild
+++ b/app-alternatives/gzip/gzip-0.ebuild
@@ -3,20 +3,18 @@
 
 EAPI=8
 
-DESCRIPTION="gzip symlinks"
-HOMEPAGE="https://wiki.gentoo.org/wiki/Project:Base/Alternatives"
-SRC_URI=""
-S=${WORKDIR}
+ALTERNATIVES=(
+	"reference:>=app-arch/gzip-1.12-r3"
+	"pigz:app-arch/pigz[-symlink(-)]"
+)
+
+inherit app-alternatives
 
-LICENSE="CC0-1.0"
-SLOT="0"
+DESCRIPTION="gzip symlinks"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
-IUSE="pigz +reference split-usr"
-REQUIRED_USE="^^ ( pigz reference )"
+IUSE="split-usr"
 
 RDEPEND="
-	pigz? ( app-arch/pigz[-symlink(-)] )
-	reference? ( >=app-arch/gzip-1.12-r3 )
 	!<app-arch/gzip-1.12-r3
 	!app-arch/pigz[symlink(-)]
 "
@@ -25,20 +23,21 @@ src_install() {
 	local usr_prefix=
 	use split-usr && usr_prefix=../usr/bin/
 
-	if use pigz; then
-		dosym "${usr_prefix}pigz" /bin/gzip
-		dosym gzip /bin/gunzip
-		dosym gzip /bin/zcat
-		newman - gzip.1 <<<".so pigz.1"
-	elif use reference; then
-		dosym gzip-reference /bin/gzip
-		# gzip uses shell wrappers rather than argv[0]
-		dosym gunzip-reference /bin/gunzip
-		dosym zcat-reference /bin/zcat
-		newman - gzip.1 <<<".so gzip-reference.1"
-	else
-		die "Invalid USE flag combination (broken REQUIRED_USE?)"
-	fi
+	case $(get_alternative) in
+		pigz)
+			dosym "${usr_prefix}pigz" /bin/gzip
+			dosym gzip /bin/gunzip
+			dosym gzip /bin/zcat
+			newman - gzip.1 <<<".so pigz.1"
+			;;
+		reference)
+			dosym gzip-reference /bin/gzip
+			# gzip uses shell wrappers rather than argv[0]
+			dosym gunzip-reference /bin/gunzip
+			dosym zcat-reference /bin/zcat
+			newman - gzip.1 <<<".so gzip-reference.1"
+			;;
+	esac
 
 	newman - gunzip.1 <<<".so gzip.1"
 	newman - zcat.1 <<<".so gzip.1"
-- 
cgit v1.2.3-65-gdbad