version bump dev-php/pecl-apcu-5.1.27 backport for 7.4

dev-php/pecl-apcu/Manifest

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+DIST apcu-5.1.27.tgz 94489 BLAKE2B 532973f3d527e545ea2e722232b5114ac5705a7b8a1bbe198998d6b2ea44f7d7575280ed7122a01c2136d177218a63617288e363f1f549afc1f676ae49f480dc SHA512 e1cf746b8d82e29986a5bc744624dd9690b30952a9a697dfad5219b576978f93c152eac637b29e5a8801237f06c52b46527e26e86a46d880bfee13862000ff7e

dev-php/pecl-apcu/pecl-apcu-5.1.27.ebuild

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+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PHP_EXT_INI="yes"
+PHP_EXT_NAME="apcu"
+PHP_EXT_ZENDEXT="no"
+USE_PHP="php7-4 php8-2 php8-3 php8-4 php8-5"
+
+inherit php-ext-pecl-r3
+
+DESCRIPTION="Stripped down version of APC supporting only user cache"
+
+LICENSE="PHP-3.01"
+SLOT="7"
+KEYWORDS="amd64 ~arm arm64 x86"
+
+LOCKS="pthreadmutex pthreadrw spinlock semaphore"
+LUSE=""
+for l in ${LOCKS}; do
+	LUSE+="lock-${l} "
+done
+IUSE="+mmap ${LUSE/lock-pthreadrw/+lock-pthreadrw}"
+REQUIRED_USE="^^ ( $LUSE )"
+
+DOCS=( NOTICE README.md TECHNOTES.txt )
+
+src_prepare() {
+	php-ext-source-r3_src_prepare
+
+	# Remove broken tests from php 7.4 due to trivial output differences
+	if use php_targets_php7-4 ; then
+		php_init_slot_env "php7.4"
+		rm "${PHP_EXT_S}"/tests/apc_entry_00{2,3}.phpt || die
+	fi
+}
+
+src_configure() {
+	local PHP_EXT_ECONF_ARGS=(
+		--enable-apcu
+		$(use_enable mmap apcu-mmap)
+		$(use_enable lock-spinlock apcu-spinlocks)
+	)
+
+	# Broken upstream autoconf test disables if present at all
+	use lock-pthreadrw || PHP_EXT_ECONF_ARGS+=( --disable-apcu-rwlocks )
+
+	php-ext-source-r3_src_configure
+}
+
+src_install() {
+	php-ext-pecl-r3_src_install
+
+	insinto /usr/share/php8/apcu
+	doins apc.php
+}
+
+pkg_postinst() {
+	elog "The apc.php file shipped with this release of pecl-apcu"
+	elog "was installed to ${EPREFIX}/usr/share/php8/apcu/."
+}