Separate package config

src/Package/Artifact/openssl.php

@@ -27,9 +27,9 @@ class openssl
         spc_skip_if(!file_exists("{$target_path}/openssl/test/v3ext.c"), 'v3ext.c not found, skipping patch.');
 
         FileSystem::replaceFileStr(
-            SOURCE_PATH . '/openssl/test/v3ext.c',
+            "{$target_path}/openssl/test/v3ext.c",
             '#include <stdio.h>',
-            '#include <stdio.h>' . PHP_EOL . '#include <string.h>'
+            "#include <stdio.h>\n#include <string.h>"
         );
     }
 }

src/Package/Library/gmp.php

@@ -0,0 +1,25 @@
+<?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('gmp')]
+class gmp
+{
+    #[BuildFor('Linux')]
+    #[BuildFor('Darwin')]
+    public function build(LibraryPackage $lib): void
+    {
+        UnixAutoconfExecutor::create($lib)
+            ->appendEnv(['CFLAGS' => '-std=c17'])
+            ->configure('--enable-fat')
+            ->make();
+        $lib->patchPkgconfPrefix(['gmp.pc']);
+    }
+}