Implement attr, brotli, bzip2 build for unix

src/Package/Library/attr.php

@@ -0,0 +1,29 @@
+<?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('attr')]
+class attr
+{
+    #[BuildFor('Linux')]
+    #[BuildFor('Darwin')]
+    public function build(LibraryPackage $lib): void
+    {
+        UnixAutoconfExecutor::create($lib)
+            ->appendEnv([
+                'CFLAGS' => '-Wno-int-conversion -Wno-implicit-function-declaration',
+            ])
+            ->exec('libtoolize --force --copy')
+            ->exec('./autogen.sh || autoreconf -if')
+            ->configure('--disable-nls')
+            ->make('install-attributes_h install-data install-libattr_h install-libLTLIBRARIES install-pkgincludeHEADERS install-pkgconfDATA', with_install: false);
+        $lib->patchPkgconfPrefix(['libattr.pc'], PKGCONF_PATCH_PREFIX);
+    }
+}