add lz4 extension

config/ext.json

@@ -323,6 +323,18 @@
             "openssl"
         ]
     },
+    "lz4": {
+        "support": {
+            "Windows": "wip",
+            "BSD": "wip"
+        },
+        "type": "external",
+        "source": "ext-lz4",
+        "arg-type": "custom",
+        "lib-depends": [
+            "liblz4"
+        ]
+    },
     "libxml": {
         "support": {
             "BSD": "wip"

config/source.json

@@ -161,6 +161,17 @@
             ]
         }
     },
+    "ext-lz4": {
+        "type": "ghtagtar",
+        "repo": "kjdev/php-ext-lz4",
+        "path": "php-src/ext/lz4",
+        "license": {
+            "type": "file",
+            "path": [
+                "LICENSE"
+            ]
+        }
+    },
     "ext-memcache": {
         "type": "url",
         "url": "https://pecl.php.net/get/memcache",

src/SPC/builder/extension/lz4.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\extension;
+
+use SPC\builder\Extension;
+use SPC\util\CustomExt;
+
+#[CustomExt('lz4')]
+class lz4 extends Extension
+{
+    public function getUnixConfigureArg(bool $shared = false): string
+    {
+        return '--enable-lz4 --with-lz4-includedir=' . BUILD_ROOT_PATH;
+    }
+
+    public function getWindowsConfigureArg(): string
+    {
+        return '--enable-lz4';
+    }
+}