dev-build/autoconf: Sync with Gentoo

It's from Gentoo commit 453714c02f76de16a04db5d399a20ee116981852.

sdk_container/src/third_party/portage-stable/dev-build/autoconf/autoconf-2.13-r7.ebuild

@@ -1,60 +0,0 @@
-# Copyright 1999-2024 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-inherit toolchain-autoconf
-
-DESCRIPTION="Used to create autoconfiguration files"
-HOMEPAGE="https://www.gnu.org/software/autoconf/autoconf.html"
-SRC_URI="mirror://gnu/${PN}/${P}.tar.gz"
-
-LICENSE="GPL-2"
-SLOT="${PV:0:3}"
-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"
-IUSE="test"
-RESTRICT="!test? ( test )"
-
-BDEPEND="
-	dev-lang/perl
-	sys-devel/m4
-	test? ( dev-util/dejagnu )
-"
-RDEPEND="
-	${BDEPEND}
-	sys-apps/texinfo
-	>=dev-build/autoconf-wrapper-13
-"
-
-PATCHES=(
-	"${FILESDIR}"/${P}-gentoo.patch
-	"${FILESDIR}"/${P}-destdir.patch
-	"${FILESDIR}"/${P}-test-fixes.patch #146592
-	"${FILESDIR}"/${P}-perl-5.26.patch
-	"${FILESDIR}"/${P}-K-R-decls-clang.patch
-	"${FILESDIR}"/${P}-Clang-16-fixes-for-various-tests.patch
-)
-
-TC_AUTOCONF_BREAK_INFOS=yes
-
-src_configure() {
-	# make sure configure is newer than configure.in
-	touch configure || die
-
-	# need to include --exec-prefix and --bindir or our
-	# DESTDIR patch will trigger sandbox hate :(
-	#
-	# need to force locale to C to avoid bugs in the old
-	# configure script breaking the install paths #351982
-	#
-	# force to `awk` so that we don't encode another awk that
-	# happens to currently be installed, but might later be
-	# uninstalled (like mawk).  same for m4.
-	ac_cv_path_M4="m4" \
-	ac_cv_prog_AWK="awk" \
-	LC_ALL=C \
-	econf \
-		--exec-prefix="${EPREFIX}"/usr \
-		--bindir="${EPREFIX}"/usr/bin \
-		--program-suffix="-${PV}"
-}