Add libffi

config/pkg/lib/libffi.yml

@@ -0,0 +1,16 @@
+libffi:
+  type: library
+  artifact:
+    source:
+      type: ghrel
+      repo: libffi/libffi
+      match: libffi.+\.tar\.gz
+      prefer-stable: true
+    metadata:
+      license-files: [LICENSE]
+      license: MIT
+  headers@unix:
+    - ffi.h
+    - ffitarget.h
+  static-libs@unix:
+    - libffi.a

src/Package/Library/libffi.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Package\Library;
+
+use StaticPHP\Attribute\Package\BuildFor;
+use StaticPHP\Attribute\Package\Library;
+use StaticPHP\Package\LibraryPackage;
+use StaticPHP\Runtime\Executor\UnixAutoconfExecutor;
+
+#[Library('libffi')]
+class libffi extends LibraryPackage
+{
+    #[BuildFor('Linux')]
+    public function buildLinux(): void
+    {
+        UnixAutoconfExecutor::create($this)
+            ->configure()->make();
+
+        if (is_file("{$this->getBuildRootPath()}/lib64/libffi.a")) {
+            copy("{$this->getBuildRootPath()}/lib64/libffi.a", "{$this->getBuildRootPath()}/lib/libffi.a");
+            unlink("{$this->getBuildRootPath()}/lib64/libffi.a");
+        }
+        $this->patchPkgconfPrefix(['libffi.pc']);
+    }
+
+    #[BuildFor('Darwin')]
+    public function buildDarwin(): void
+    {
+        $arch = getenv('SPC_ARCH');
+        UnixAutoconfExecutor::create($this)
+            ->configure(
+                "--host={$arch}-apple-darwin",
+                "--target={$arch}-apple-darwin",
+            )
+            ->make();
+        $this->patchPkgconfPrefix(['libffi.pc']);
+    }
+}