add memcached for macOS

src/SPC/builder/extension/memcached.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\extension;
+
+use SPC\builder\Extension;
+use SPC\util\CustomExt;
+
+#[CustomExt('memcached')]
+class memcached extends Extension
+{
+    public function getUnixConfigureArg(): string
+    {
+        $rootdir = BUILD_ROOT_PATH;
+        return "--enable-memcached --with-zlib-dir={$rootdir} --with-libmemcached-dir={$rootdir} --disable-memcached-sasl --enable-memcached-json";
+    }
+}

src/SPC/builder/linux/library/libmemcached.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\linux\library;
+
+use SPC\exception\RuntimeException;
+
+/**
+ * gmp is a template library class for unix
+ */
+class libmemcached extends LinuxLibraryBase
+{
+    public const NAME = 'libmemcached';
+
+    public function build()
+    {
+        throw new RuntimeException('libmemcached is currently not supported on Linux platform');
+    }
+}

src/SPC/builder/macos/library/libmemcached.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\macos\library;
+
+/**
+ * gmp is a template library class for unix
+ */
+class libmemcached extends MacOSLibraryBase
+{
+    public const NAME = 'libmemcached';
+
+    public function build()
+    {
+        $rootdir = BUILD_ROOT_PATH;
+
+        shell()->cd($this->source_dir)
+            ->exec('chmod +x configure')
+            ->exec(
+                "{$this->builder->configure_env} ./configure " .
+                '--enable-static --disable-shared ' .
+                '--disable-sasl ' .
+                "--prefix={$rootdir}"
+            )
+            ->exec('make clean')
+            ->exec('sed -ie "s/-Werror//g" ' . $this->source_dir . '/Makefile')
+            ->exec("make -j{$this->builder->concurrency}")
+            ->exec('make install');
+    }
+}