From ecaa9738b2f784f69009ca7902855f3528c08af9 Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Sat, 20 Jan 2024 23:49:52 +0800
Subject: fix platform error

---
 xmake/core/platform/platform.lua | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/xmake/core/platform/platform.lua b/xmake/core/platform/platform.lua
index 180e5401e..4a4b4bf96 100644
--- a/xmake/core/platform/platform.lua
+++ b/xmake/core/platform/platform.lua
@@ -157,11 +157,13 @@ function _instance:runtimes()
         elseif self:name() == "android" then
             runtimes = runtimes or config.get("ndk_cxxstl")
         end
-        runtimes = runtimes:split(",", {plain = true})
-        if #runtimes > 0 then
-            runtimes = table.unwrap(runtimes)
-        else
-            runtimes = nil
+        if runtimes then
+            runtimes = runtimes:split(",", {plain = true})
+            if #runtimes > 0 then
+                runtimes = table.unwrap(runtimes)
+            else
+                runtimes = nil
+            end
         end
         runtimes = runtimes or false
         self:_memcache():set("runtimes", runtimes)
-- 
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