diff --git a/src/vendor/Soup/build_lib.php b/src/vendor/Soup/build_lib.php
index e32b4ab..cab4f07 100644
--- a/src/vendor/Soup/build_lib.php
+++ b/src/vendor/Soup/build_lib.php
@@ -28,11 +28,11 @@ foreach(scandir(__DIR__."/soup") as $file)
 }
 if(is_dir(__DIR__."/Intrin"))
 {
-	if (php_uname("m") == "aarch64")
+	if (getenv("TARGET_ARCH") == "aarch64")
 	{
 		$clang .= " -march=armv8+crypto+crc";
 	}
-	else
+	elseif (getenv("TARGET_ARCH") != "arm")
 	{
 		$clang .= " -maes -mpclmul -mrdrnd -mrdseed -msha -msse4.1";
 	}