sys-fs/mtools: Sync with Gentoo

It's from Gentoo commit f41078f5839b25012b97c7c5300d5e8b82ed8dfa.

sdk_container/src/third_party/portage-stable/sys-fs/mtools/Manifest

@@ -1,3 +1,4 @@
 DIST mtools-4.0.42.tar.bz2 441506 BLAKE2B 07afec0aea49427ec71ae8ddde9c1dceb33b2533e9acbde3564b0715efce784b5ea8c2122ff588f84e42435abb73ac9912520fd654a078bf0336e62f35f3ce2a SHA512 fd8d56d2dea9ce5e2b311b29ebdd4d89ec7baaf5f2fbfdc85019d480eff4d198ebf0e591c0f28ee1e39d8b81d49d7d4e9ed94b0e94e5b02ce9bbc03632124811
 DIST mtools-4.0.43.tar.bz2 443673 BLAKE2B d000839bbb6bc647eb5a32b08b40b1350cd0a85fd564f0705ecbfe20f8f4ef21bf2d59cd0ccd7a159c829c019c6c2f3cbdef82ff3f4a9e8828cc13d44ddabd1d SHA512 b70e483688124a653dd333ab127494dab12d413809680a4846dc4ae5c166a0b9938a2ab290e518c1f1a5b18ed96d2c2a29d92d61b16b772a4ab5e495379fe410
 DIST mtools-4.0.44.tar.lz 389267 BLAKE2B 1a6a9d257fc07cf27280a535feac873d27690fb02114b293e31d7c8441de6bbdbd57a13f4ba62ce5a5093cd45683776dd8e61ac822b1d3d44eb98cd21f7b9088 SHA512 8977f43b1cd25a0d1052f9f8f140d73d432bd49a7a4737d0b743a9f8ccec5aff6bbbdc07455011ecc49038b1b1dfd6908dda8c46d06389b1511875f9bc654f84
+DIST mtools-4.0.45.tar.lz 389733 BLAKE2B bb23b310fea5d10e5f0c0ed543e0f8cbac9ba4177128419b6e05fb4a06896a64ddccb27c932eb41c339a0167706e729c2f209837874fe4ac4d165a534802031c SHA512 dd5869fee6f376deab2beb3d5168045a6abc7bbfdea35a274369420c99771ee89477629364a8c677dfba56e0df5c7d2760b6cbfba2d425a89a7b8c21f2b6e538

sdk_container/src/third_party/portage-stable/sys-fs/mtools/mtools-4.0.45.ebuild

@@ -0,0 +1,54 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic unpacker
+
+DESCRIPTION="Utilities to access MS-DOS disks from Unix without mounting them"
+HOMEPAGE="https://www.gnu.org/software/mtools/ https://savannah.gnu.org/projects/mtools"
+SRC_URI="mirror://gnu/${PN}/${P}.tar.lz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~x64-macos ~x64-solaris"
+IUSE="gui"
+
+RDEPEND="
+	virtual/libiconv
+	gui? (
+		x11-libs/libICE
+		x11-libs/libXau
+		x11-libs/libSM
+		x11-libs/libX11
+		x11-libs/libXt
+	)
+"
+DEPEND="${RDEPEND}"
+BDEPEND="$(unpacker_src_uri_depends)"
+
+src_configure() {
+	if ! use elibc_glibc && ! use elibc_musl ; then
+		# bug #447688
+		append-libs "-liconv"
+	fi
+
+	local myeconfargs=(
+		--sysconfdir="${EPREFIX}"/etc/mtools
+		$(use_with gui x)
+	)
+
+	econf "${myeconfargs[@]}"
+}
+
+src_install() {
+	local -a DOCS=( README* Release.notes )
+
+	default
+
+	insinto /etc/mtools
+	doins mtools.conf
+
+	# Default is fine
+	sed -i -e '/^SAMPLE FILE$/s:^:#:' "${ED}"/etc/mtools/mtools.conf || die
+}