diff --git a/src/Platform/Macos.php b/src/Platform/Macos.php
index 3b8d85e5..ee7956e7 100644
--- a/src/Platform/Macos.php
+++ b/src/Platform/Macos.php
@@ -76,28 +76,4 @@ class Macos extends UnixPlatform
             self::HOMEBREW_LIBRARY_PATHS,
         )));
     }
-
-    /**
-     * 获取默认的 RPATH 路径列表（macOS 需要）
-     */
-    public function getDefaultRpaths(?string $phpxDir = null, ?string $phpDir = null): array
-    {
-        $rpaths = [];
-
-        if ($phpxDir !== null) {
-            $phpxLibDir = $phpxDir . '/lib';
-            if (is_dir($phpxLibDir)) {
-                $rpaths[] = $phpxLibDir;
-            }
-        }
-
-        if ($phpDir !== null) {
-            $phpLibDir = $this->resolvePhpLibDir($phpDir);
-            if ($phpLibDir !== null) {
-                $rpaths[] = $phpLibDir;
-            }
-        }
-
-        return $rpaths;
-    }
 }
diff --git a/src/Platform/UnixPlatform.php b/src/Platform/UnixPlatform.php
index c2bd519b..e1412071 100644
--- a/src/Platform/UnixPlatform.php
+++ b/src/Platform/UnixPlatform.php
@@ -166,6 +166,36 @@ abstract class UnixPlatform extends PlatformBase
         throw new \RuntimeException('The `php-config` is not found. Please install PHP development package or set PHP_HOME environment variable');
     }
 
+    /**
+     * libphpx and the embed libphp.so live where TypePHP put them: beside the
+     * phpx checkout, and under the PHP prefix the libphp installer chose.
+     * Neither is on the loader's search path, so a linked program only finds
+     * them again if their directories are recorded in the binary.
+     *
+     * Cross-compilation targets override this back to an empty list: a path on
+     * the build host means nothing on the device that runs the output.
+     */
+    public function getDefaultRpaths(?string $phpxDir = null, ?string $phpDir = null): array
+    {
+        $rpaths = [];
+
+        if ($phpxDir !== null) {
+            $phpxLibDir = $phpxDir . '/lib';
+            if (is_dir($phpxLibDir)) {
+                $rpaths[] = $phpxLibDir;
+            }
+        }
+
+        if ($phpDir !== null) {
+            $phpLibDir = $this->resolvePhpLibDir($phpDir);
+            if ($phpLibDir !== null) {
+                $rpaths[] = $phpLibDir;
+            }
+        }
+
+        return $rpaths;
+    }
+
     /**
      * Get the RPATH options.
      */
diff --git a/src/Platform/Wasi.php b/src/Platform/Wasi.php
index 9765d51b..49bf2b5e 100644
--- a/src/Platform/Wasi.php
+++ b/src/Platform/Wasi.php
@@ -23,6 +23,15 @@ final class Wasi extends UnixPlatform
         return '.a';
     }
 
+    /**
+     * A WASI module resolves no shared libraries, and the build host's paths
+     * do not exist wherever it runs.
+     */
+    public function getDefaultRpaths(?string $phpxDir = null, ?string $phpDir = null): array
+    {
+        return [];
+    }
+
     public function getExecutableExtension(): string
     {
         return '.wasm';