add some comments

1 files changed, 2 insertions, 0 deletions

diff --git a/xmake/modules/package/tools/cmake.lua b/xmake/modules/package/tools/cmake.lua
index 77520b6a3..f0786091c 100644
--- a/xmake/modules/package/tools/cmake.lua
+++ b/xmake/modules/package/tools/cmake.lua
@@ -96,6 +96,8 @@ function _get_msvc_runenvs(package)
     local envs = {}
     local curenvs = os.getenvs()
     for k, v in pairs(os.joinenvs(_get_msvc(package):runenvs())) do
+        -- fix case naming conflict for msbuild between the new msvc envs and current environment, if we are running xmake in vs prompt.
+        -- @see https://github.com/xmake-io/xmake/issues/4751
         local ck_found
         for ck, cv in pairs(curenvs) do
             if k:lower() == ck:lower() and k ~= ck then