sys-devel/m4: Sync with Gentoo

It's from Gentoo commit 77f67752cd0fa1d306b5d82723954ac8dbc6cd6c.

sdk_container/src/third_party/portage-stable/sys-devel/m4/m4-1.4.19-r2.ebuild

@@ -17,7 +17,7 @@ else
 	SRC_URI="mirror://gnu/${PN}/${P}.tar.xz"
 	SRC_URI+=" https://dev.gentoo.org/~floppym/dist/${P}-test-198-sysval-r1.patch.gz"
 	SRC_URI+=" verify-sig? ( mirror://gnu/${PN}/${P}.tar.xz.sig )"
-	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 fi
 
 LICENSE="GPL-3"
@@ -77,8 +77,6 @@ src_configure() {
 		ac_cv_libsigsegv=no
 	)
 
-	[[ ${USERLAND} != GNU ]] && myeconfargs+=( --program-prefix=g )
-
 	econf "${myeconfargs[@]}"
 }
 

sdk_container/src/third_party/portage-stable/sys-devel/m4/m4-1.4.19.ebuild

@@ -1,100 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/m4.asc
-inherit verify-sig
-
-DESCRIPTION="GNU macro processor"
-HOMEPAGE="https://www.gnu.org/software/m4/m4.html"
-if [[ ${PV} == *_beta* ]] ; then
-	MY_P="${PN}-1.4.18d"
-	SRC_URI="https://alpha.gnu.org/gnu/${PN}/${MY_P}.tar.xz"
-	SRC_URI+=" verify-sig? ( https://alpha.gnu.org/gnu/${PN}/${MY_P}.tar.xz.sig )"
-	S="${WORKDIR}/${MY_P}"
-else
-	SRC_URI="mirror://gnu/${PN}/${P}.tar.xz"
-	SRC_URI+=" https://dev.gentoo.org/~floppym/dist/${P}-test-198-sysval-r1.patch.gz"
-	SRC_URI+=" verify-sig? ( mirror://gnu/${PN}/${P}.tar.xz.sig )"
-	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
-fi
-
-LICENSE="GPL-3"
-SLOT="0"
-IUSE="examples nls"
-
-RDEPEND="
-	virtual/libiconv
-	nls? (
-		sys-devel/gettext
-		virtual/libintl
-	)"
-DEPEND="${RDEPEND}"
-# Remember: cannot dep on autoconf since it needs us
-BDEPEND="app-arch/xz-utils
-	nls? ( sys-devel/gettext )
-	verify-sig? ( sec-keys/openpgp-keys-m4 )"
-
-PATCHES=(
-	"${FILESDIR}"/ppc-musl.patch
-	"${FILESDIR}"/loong-fix-build.patch
-	"${FILESDIR}"/${PN}-1.4.19-make-4.4-tests.patch
-	"${WORKDIR}"/${P}-test-198-sysval-r1.patch
-)
-
-src_unpack() {
-	if use verify-sig ; then
-		# Needed for downloaded patch (which is unsigned, which is fine)
-		verify-sig_verify_detached "${DISTDIR}"/${P}.tar.xz{,.sig}
-	fi
-
-	default
-}
-
-src_prepare() {
-	default
-
-	# touch generated files after patching m4, to avoid activating maintainer
-	# mode
-	# remove when loong-fix-build.patch is no longer necessary
-	touch ./aclocal.m4 ./lib/config.hin ./configure ./doc/stamp-vti || die
-	find . -name Makefile.in -exec touch {} + || die
-}
-
-src_configure() {
-	local -a myeconfargs=(
-		--enable-changeword
-
-		--with-packager="Gentoo Linux"
-		--with-packager-version="${PVR}"
-		--with-packager-bug-reports="https://bugs.gentoo.org/"
-
-		$(usex nls '' '--disable-nls')
-
-		# Disable automagic dependency over libsigsegv; see bug #278026
-		ac_cv_libsigsegv=no
-	)
-
-	[[ ${USERLAND} != GNU ]] && myeconfargs+=( --program-prefix=g )
-
-	econf "${myeconfargs[@]}"
-}
-
-src_test() {
-	[[ -d /none ]] && die "m4 tests will fail with /none/" #244396
-	emake check
-}
-
-src_install() {
-	default
-
-	# autoconf-2.60 for instance, first checks gm4, then m4.  If we don't have
-	# gm4, it might find gm4 from outside the prefix on for instance Darwin
-	use prefix && dosym m4 /usr/bin/gm4
-
-	if use examples ; then
-		dodoc -r examples
-		rm -f "${ED}"/usr/share/doc/${PF}/examples/Makefile*
-	fi
-}