Support define php extension arg-type in config

src/Package/Artifact/libaom.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Package\Artifact;
+
+use StaticPHP\Attribute\Artifact\AfterSourceExtract;
+use StaticPHP\Attribute\PatchDescription;
+use StaticPHP\Runtime\SystemTarget;
+use StaticPHP\Util\SourcePatcher;
+use StaticPHP\Util\System\LinuxUtil;
+
+class libaom
+{
+    #[AfterSourceExtract('libaom')]
+    #[PatchDescription('Patch libaom for Linux Musl distributions - posix implicit declaration')]
+    public function patch(string $target_path): void
+    {
+        spc_skip_if(SystemTarget::getTargetOS() !== 'Linux' || !LinuxUtil::isMuslDist(), 'Only for Linux Musl distros');
+        SourcePatcher::patchFile('libaom_posix_implict.patch', $target_path);
+    }
+}