sys-fs/squashfs-tools: Sync with Gentoo

It's from Gentoo commit bc288325ca547ae34a0268da9d1eae2ee52b5f7d.

Signed-off-by: Flatcar Buildbot <buildbot@flatcar-linux.org>

sdk_container/src/third_party/portage-stable/sys-fs/squashfs-tools/Manifest

@@ -1 +1,3 @@
 DIST squashfs-tools-4.7.2.tar.gz 638262 BLAKE2B 7501a0ea11ae057b297d1dedcd1a4c1475a641102c0662614c820f7bed6d9437e282303d0e35b50185aa74b22d3cf8bffb4424e1e20b398ef068ef822fcb7097 SHA512 4ef134935e97267544837806d8494f7eab14bae834afdb5caf4862703652c6f33bd38ade45e3a276927bfdb4877d5474c1d5b8c14090cc3a63a80aa931e6b25f
+DIST squashfs-tools-4.7.3.tar.gz 396304 BLAKE2B f514187dee5141f10ae626880dc6d9101b46e480eaa94602307d6e5132fc7dc46d3db24ab041d6f200cdb1f46d325bf89868b708af0891bdb92e6c7ff44d5f92 SHA512 8b334b765d0426acdc3df4d3afc0c197368f81f01a6dd79acf9f894155b60d972bccd198d7652000cf81479084ba45ff2a82611949cc4aa1a71e43317b836ca2
+DIST squashfs-tools-4.7.4.tar.gz 408882 BLAKE2B 2488f2d953c53bbf25d18242b4cb315ebe67f336bb07003d52622f701c9ee8409330fe16a5782737777cbbd62228181973005e66c4e56f28900769dad94df51e SHA512 16943b331723c301d7e65c14e5946d3fa27f974ba509a412ab6182a48d83a935d445feb80a27d89a5b5ba5cf86e55835f12d28c2b2b57f5623e1151cb2966376

sdk_container/src/third_party/portage-stable/sys-fs/squashfs-tools/squashfs-tools-4.7.2.ebuild

@@ -18,7 +18,7 @@ KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390
 IUSE="debug lz4 lzma lzo xattr zstd"
 
 DEPEND="
-	sys-libs/zlib
+	virtual/zlib:=
 	lz4? ( app-arch/lz4 )
 	lzma? ( app-arch/xz-utils )
 	lzo? ( dev-libs/lzo )

sdk_container/src/third_party/portage-stable/sys-fs/squashfs-tools/squashfs-tools-4.7.3.ebuild

@@ -0,0 +1,57 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic toolchain-funcs
+
+DESCRIPTION="Tools to create and extract Squashfs filesystems"
+HOMEPAGE="https://github.com/plougher/squashfs-tools/"
+SRC_URI="
+	https://github.com/plougher/squashfs-tools/archive/${PV}.tar.gz
+		-> ${P}.tar.gz
+"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="debug lz4 lzma lzo xattr zstd"
+
+DEPEND="
+	virtual/zlib:=
+	lz4? ( app-arch/lz4 )
+	lzma? ( app-arch/xz-utils )
+	lzo? ( dev-libs/lzo )
+	xattr? ( sys-apps/attr )
+	zstd? ( app-arch/zstd )
+"
+RDEPEND=${DEPEND}
+
+use10() {
+	usex "${1}" 1 0
+}
+
+src_compile() {
+	# set up make command line variables in EMAKE_SQUASHFS_CONF
+	local opts=(
+		LZMA_XZ_SUPPORT=$(use10 lzma)
+		LZO_SUPPORT=$(use10 lzo)
+		LZ4_SUPPORT=$(use10 lz4)
+		XATTR_SUPPORT=$(use10 xattr)
+		XZ_SUPPORT=$(use10 lzma)
+		ZSTD_SUPPORT=$(use10 zstd)
+	)
+
+	tc-export CC
+	use debug && append-cppflags -DSQUASHFS_TRACE
+	emake "${opts[@]}" -C squashfs-tools
+}
+
+src_install() {
+	dobin squashfs-tools/{mksquashfs,unsquashfs}
+	dodoc ACKNOWLEDGEMENTS CHANGES README*
+	doman Documentation/manpages/*.1
+
+	dosym unsquashfs /usr/bin/sqfscat
+	dosym mksquashfs /usr/bin/sqfstar
+}

sdk_container/src/third_party/portage-stable/sys-fs/squashfs-tools/squashfs-tools-4.7.4.ebuild

@@ -0,0 +1,57 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic toolchain-funcs
+
+DESCRIPTION="Tools to create and extract Squashfs filesystems"
+HOMEPAGE="https://github.com/plougher/squashfs-tools/"
+SRC_URI="
+	https://github.com/plougher/squashfs-tools/archive/${PV}.tar.gz
+		-> ${P}.tar.gz
+"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="debug lz4 lzma lzo xattr zstd"
+
+DEPEND="
+	virtual/zlib:=
+	lz4? ( app-arch/lz4 )
+	lzma? ( app-arch/xz-utils )
+	lzo? ( dev-libs/lzo )
+	xattr? ( sys-apps/attr )
+	zstd? ( app-arch/zstd )
+"
+RDEPEND=${DEPEND}
+
+use10() {
+	usex "${1}" 1 0
+}
+
+src_compile() {
+	# set up make command line variables in EMAKE_SQUASHFS_CONF
+	local opts=(
+		LZMA_XZ_SUPPORT=$(use10 lzma)
+		LZO_SUPPORT=$(use10 lzo)
+		LZ4_SUPPORT=$(use10 lz4)
+		XATTR_SUPPORT=$(use10 xattr)
+		XZ_SUPPORT=$(use10 lzma)
+		ZSTD_SUPPORT=$(use10 zstd)
+	)
+
+	tc-export CC
+	use debug && append-cppflags -DSQUASHFS_TRACE
+	emake "${opts[@]}" -C squashfs-tools
+}
+
+src_install() {
+	dobin squashfs-tools/{mksquashfs,unsquashfs}
+	dodoc ACKNOWLEDGEMENTS CHANGES README*
+	doman Documentation/manpages/*.1
+
+	dosym unsquashfs /usr/bin/sqfscat
+	dosym mksquashfs /usr/bin/sqfstar
+}