dev-util/gperf: Sync with Gentoo

It's from Gentoo commit b8f2baca1ec6a6e8998076d409a2dac3869748a8.

sdk_container/src/third_party/portage-stable/dev-util/gperf/gperf-3.1-r1.ebuild

@@ -1,30 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-DESCRIPTION="A perfect hash function generator"
-HOMEPAGE="https://www.gnu.org/software/gperf/"
-SRC_URI="mirror://gnu/gperf/${P}.tar.gz"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
-
-PATCHES=(
-	"${FILESDIR}"/${P}-strncmp-decl-mismatch.patch
-	"${FILESDIR}"/${P}-clang-16-wregister.patch
-	"${FILESDIR}"/${P}-parallel-tests.patch
-)
-
-src_prepare() {
-	sed -i \
-		-e "/^CPPFLAGS /s:=:+=:" \
-		*/Makefile.in || die #444078
-
-	default
-}
-
-src_configure() {
-	econf --cache-file="${S}"/config.cache
-}