app-arch/unzip: Sync with Gentoo

It's from Gentoo commit e52844bf6cd2d6975e39026233f8f8fb35692b25.

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

@@ -1,2 +1,3 @@
 DIST unzip60.tar.gz 1376845 BLAKE2B 5016d300b4452018a391f4ebc03c6960c068df400a0407c0c60bd7bb5ec5012031f916d8b204a6149ba291c2c35beba40d9b43c76fc093026e79471329ab0e47 SHA512 0694e403ebc57b37218e00ec1a406cae5cc9c5b52b6798e0d4590840b6cdbf9ddc0d9471f67af783e960f8fa2e620394d51384257dca23d06bcd90224a80ce5d
 DIST unzip_6.0-27.debian.tar.xz 24980 BLAKE2B e53a96f12af0cf5227600c73a35003484fca5de138cd37991eb1eb25b97b80371c3a566d989feeb04deb1a93acd9444253b091cd7e920b23520c87c5f5a94eeb SHA512 e1e605f023c7b314a6c5b2857a3bd630350df2d7e4bf6bb38ab8594f967336384666b4db8afad931251b85261ee4e2c38d78641c74ac7e5fd02523f26e92ddb2
+DIST unzip_6.0-29.debian.tar.xz 25876 BLAKE2B b4477fe1c611e91bf878aeab868a2fd5b5fc62f81a43eb8505716edea8d56509947ca5fe6ca2b0a72899e1681e75cdb22911c3ba454eb453eb401c0e63af7e9a SHA512 527baae307d9ae169b6f9ad29319c61a2386de523319200efeda4a763b78777554e9ec035351c0da9160656c8b8e7aba60cc18fe1eb23fccca1e0115dee63e57

sdk_container/src/third_party/portage-stable/app-arch/unzip/unzip-6.0_p29.ebuild

@@ -0,0 +1,93 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic multilib toolchain-funcs
+
+MY_PV="${PV//.}"
+MY_PV="${MY_PV%_p*}"
+MY_P="${PN}${MY_PV}"
+
+DESCRIPTION="unzipper for pkzip-compressed files"
+HOMEPAGE="https://infozip.sourceforge.net/UnZip.html"
+SRC_URI="
+	https://downloads.sourceforge.net/infozip/${MY_P}.tar.gz
+	mirror://debian/pool/main/u/${PN}/${PN}_${PV/_p/-}.debian.tar.xz
+"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="Info-ZIP"
+SLOT="0"
+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"
+IUSE="bzip2 natspec unicode"
+
+DEPEND="
+	bzip2? ( app-arch/bzip2 )
+	natspec? ( dev-libs/libnatspec )
+"
+RDEPEND="${DEPEND}"
+
+PATCHES=(
+	"${WORKDIR}"/debian/patches
+	"${FILESDIR}"/${PN}-6.0-no-exec-stack.patch
+	"${FILESDIR}"/${PN}-6.0-format-security.patch
+	"${FILESDIR}"/${PN}-6.0-fix-false-overlap-detection-on-32bit-systems.patch
+)
+
+src_prepare() {
+	# bug #275244
+	use natspec && PATCHES+=( "${FILESDIR}"/${PN}-6.0-natspec.patch )
+
+	rm "${WORKDIR}"/debian/patches/02-this-is-debian-unzip.patch || die
+
+	default
+
+	sed -i -r \
+		-e '/^CFLAGS/d' \
+		-e '/CFLAGS/s:-O[0-9]?:$(CFLAGS) $(CPPFLAGS):' \
+		-e '/^STRIP/s:=.*:=true:' \
+		-e "s:\<CC *= *\"?g?cc2?\"?\>:CC=\"$(tc-getCC)\":" \
+		-e "s:\<LD *= *\"?(g?cc2?|ld)\"?\>:LD=\"$(tc-getCC)\":" \
+		-e "s:\<AS *= *\"?(g?cc2?|as)\"?\>:AS=\"$(tc-getCC)\":" \
+		-e 's:LF2 = -s:LF2 = :' \
+		-e 's:LF = :LF = $(LDFLAGS) :' \
+		-e 's:SL = :SL = $(LDFLAGS) :' \
+		-e 's:FL = :FL = $(LDFLAGS) :' \
+		-e "/^#L_BZ2/s:^$(use bzip2 && echo .)::" \
+		-e 's:$(AS) :$(AS) $(ASFLAGS) :g' \
+		unix/Makefile \
+		|| die "sed unix/Makefile failed"
+
+	# Delete bundled code to make sure we don't use it.
+	rm -r bzip2 || die
+}
+
+src_configure() {
+	case ${CHOST} in
+		i?86*-*linux*)       TARGET="linux_asm" ;;
+		*linux*)             TARGET="linux_noasm" ;;
+		*-darwin*)           TARGET="macosx" ;;
+		*-solaris*)          TARGET="linux_noasm" ;;
+		*) die "Unknown target; please update the ebuild to handle ${CHOST}" ;;
+	esac
+
+	[[ ${CHOST} == *linux* ]] && append-cppflags -DNO_LCHMOD
+	[[ ${CHOST} == *-solaris* ]] && append-cppflags -DNO_LCHMOD -DBSD4_4
+	use bzip2 && append-cppflags -DUSE_BZIP2
+	use unicode && append-cppflags -DUNICODE_SUPPORT -DUNICODE_WCHAR -DUTF8_MAYBE_NATIVE -DUSE_ICONV_MAPPING
+
+	# bug #281473
+	append-cppflags -DLARGE_FILE_SUPPORT
+}
+
+src_compile() {
+	ASFLAGS="${ASFLAGS} $(get_abi_CFLAGS)" emake -f unix/Makefile ${TARGET}
+}
+
+src_install() {
+	dobin unzip funzip unzipsfx unix/zipgrep
+	dosym unzip /usr/bin/zipinfo
+	doman man/*.1
+	dodoc BUGS History* README ToDo WHERE
+}