app-arch/gzip: Sync with Gentoo

It's from Gentoo commit a8a1fbdcfb9f1b410009620a9675379cf686d161.

sdk_container/src/third_party/portage-stable/app-arch/gzip/Manifest

@@ -1,2 +1,4 @@
 DIST gzip-1.13.tar.xz 838248 BLAKE2B f0e3b4c28bafcd3b59b65ac2d71218dc58d81b52c6921c1be038757c99e99184178c5d0e9674caa5099713b8b64e8c85cf061f4abfa20b73b478288f121fb05d SHA512 e3d4d4aa4b2e53fdad980620307257c91dfbbc40bcec9baa8d4e85e8327f55e2ece552c9baf209df7b66a07103ab92d4954ac53c86c57fbde5e1dd461143f94c
 DIST gzip-1.13.tar.xz.sig 833 BLAKE2B 42e38fa7b3a6b6d21a18308cf662844ed84e1a142a945f3f3142db0a14212c0e642de514abb1307ec12ee7bb9644472cc3aed40582d9c266ab24808acbca0215 SHA512 f95e016f61f4a67cb4cec6cede2510af6bb5567d72bbd3d70210a6d5cf3ee5fea8f0cbf8f7b612fa52f2ecfd9dba050d9cd4494075ce5ac4abac7b74eaa7ccbc
+DIST gzip-1.13_p20250405.tar.xz 892960 BLAKE2B a3b52fbc4db6594ebc98d0f49d04f18073036bd2b29ac1aedb77ce124f8ac232e502450763d260d9d836066d21106b4770561f67dbe833bf43ed9b6c12987389 SHA512 8c439fbb15924eb38e421b04919fc2013e5a814445c83b665e4538f34f9b4b8c73dfe1910aba8c38ef98ee4bd57f01082798e6056802a12aa95d0c82e4a08412
+DIST gzip-1.13_p20250405.tar.xz.sig 833 BLAKE2B b47479ee151f093e6fa81abfe9587c887994562bb19631da9b3506a020ec8ccbc34eb79df29f61e4e441b46fb3e7b5e603357d75edf5d13973ca52737967f897 SHA512 162488d2085664514f8893128fbe6227860e8c8e152a979196c311f68706781c058fdada3fe659e41059aaaf281f0539b035f358e5e633d59e9c5634edbefadb

sdk_container/src/third_party/portage-stable/app-arch/gzip/gzip-1.13_p20250405.ebuild

@@ -0,0 +1,96 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/gzip.asc
+inherit eapi9-ver flag-o-matic verify-sig
+
+DESCRIPTION="Standard GNU compressor"
+HOMEPAGE="https://www.gnu.org/software/gzip/"
+if [[ ${PV} == *_p* ]] ; then
+	# Note: could put this in devspace, but if it's gone, we don't want
+	# it in tree anyway. It's just for testing.
+	MY_SNAPSHOT="$(ver_cut 1-2).56-e549"
+	SRC_URI="
+		https://meyering.net/gzip/gzip-${MY_SNAPSHOT}.tar.xz -> ${P}.tar.xz
+		verify-sig? (
+			https://meyering.net/gzip/gzip-${MY_SNAPSHOT}.tar.xz.sig -> ${P}.tar.xz.sig
+		)
+	"
+	S="${WORKDIR}"/${PN}-${MY_SNAPSHOT}
+else
+	SRC_URI="
+		mirror://gnu/gzip/${P}.tar.xz
+		verify-sig? (
+			mirror://gnu/gzip/${P}.tar.xz.sig
+		)
+	"
+fi
+
+LICENSE="GPL-3+"
+SLOT="0"
+if [[ ${PV} != *_p* ]] ; then
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+fi
+IUSE="pic static"
+
+BDEPEND="verify-sig? ( sec-keys/openpgp-keys-gzip )"
+RDEPEND="!app-arch/pigz[symlink(-)]"
+PDEPEND="
+	app-alternatives/gzip
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-1.3.8-install-symlinks.patch"
+)
+
+src_configure() {
+	use static && append-flags -static
+
+	# Avoid text relocation in gzip
+	use pic && export DEFS="NO_ASM"
+
+	# embeds the path to grep detected at build time into installed scripts;
+	# use the canonical USE="split-usr" agnostic path. bug #935721
+	export GREP="${EPREFIX}/bin/grep"
+
+	# bug #663928
+	econf --disable-gcc-warnings
+}
+
+src_install() {
+	default
+
+	docinto txt
+	dodoc algorithm.doc gzip.doc
+
+	# Avoid conflict with app-arch/ncompress
+	rm "${ED}"/usr/bin/uncompress || die
+
+	# keep most things in /usr, just the fun stuff in /
+	# also rename them to avoid conflict with app-alternatives/gzip
+	dodir /bin
+	local x
+	for x in gunzip gzip zcat; do
+		mv "${ED}/usr/bin/${x}" "${ED}/bin/${x}-reference" || die
+	done
+	mv "${ED}"/usr/share/man/man1/gzip{,-reference}.1 || die
+	rm "${ED}"/usr/share/man/man1/{gunzip,zcat}.1 || die
+}
+
+pkg_postinst() {
+	if ver_replacing -lt "1.12-r2"; then
+		ewarn "This package no longer installs 'uncompress'."
+		ewarn "Please use 'gzip -d' to decompress .Z files."
+	fi
+
+	# ensure to preserve the symlinks before app-alternatives/gzip
+	# is installed
+	local x
+	for x in gunzip gzip zcat; do
+		if [[ ! -h ${EROOT}/bin/${x} ]]; then
+			ln -s "${x}-reference" "${EROOT}/bin/${x}" || die
+		fi
+	done
+}