pass build envs got autoconf

1 files changed, 3 insertions, 2 deletions

diff --git a/xmake/core/package/package.lua b/xmake/core/package/package.lua
index b08e23ecb..41ebaae6f 100644
--- a/xmake/core/package/package.lua
+++ b/xmake/core/package/package.lua
@@ -420,8 +420,9 @@ function _instance:build_envs(lazy_loading)
             if value == nil then
                 value = platform.tool(key, self:plat())
             end
-            if value ~= nil then
-                rawset(tbl, key, value)
+            value = table.unique(table.join(table.wrap(value), self:config(key)))
+            if #value > 0 then
+                rawset(tbl, key, os.args(value))
                 return value
             end
             return rawget(tbl, key)