improve moduledirs

1 files changed, 5 insertions, 1 deletions

diff --git a/xmake/core/project/project.lua b/xmake/core/project/project.lua
index 5376f406d..2ea22e655 100644
--- a/xmake/core/project/project.lua
+++ b/xmake/core/project/project.lua
@@ -220,12 +220,16 @@ function project._api_add_toolchaindirs(interp, ...)
         -- so that custom toolchain can bundle its tool modules together
         local toolchain_subdirs = os.dirs(path.join(dir, "*"))
         if toolchain_subdirs then
+            local modulesdirs = {}
             for _, toolchain_subdir in ipairs(toolchain_subdirs) do
                 local modulesdir = path.join(toolchain_subdir, "modules")
                 if os.isdir(modulesdir) then
-                    sandbox_module.add_directories(modulesdir)
+                    table.insert(modulesdirs, modulesdir)
                 end
             end
+            if #modulesdirs > 0 then
+                sandbox_module.add_directories(table.unpack(modulesdirs))
+            end
         end
     end
 end