From 937352c78f9bf78b74177db31510a04bacfd6e0d Mon Sep 17 00:00:00 2001
From: Jiaming Yuan <jm.yuan@outlook.com>
Date: Thu, 14 Jul 2022 05:27:38 +0800
Subject: [PATCH] Fix R package Windows build. (#8065)

---
 R-package/src/xgboost_R.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/R-package/src/xgboost_R.cc b/R-package/src/xgboost_R.cc
index 0fe56be17..fcbccb145 100644
--- a/R-package/src/xgboost_R.cc
+++ b/R-package/src/xgboost_R.cc
@@ -263,7 +263,7 @@ XGB_DLL SEXP XGDMatrixSetStrFeatureInfo_R(SEXP handle, SEXP field, SEXP array) {
   }
   std::vector<char const*> vec(len);
   std::transform(str_info.cbegin(), str_info.cend(), vec.begin(),
-                 [](auto const &str) { return str.c_str(); });
+                 [](std::string const &str) { return str.c_str(); });
   CHECK_CALL(XGDMatrixSetStrFeatureInfo(R_ExternalPtrAddr(handle), name, vec.data(), len));
   R_API_END();
   return R_NilValue;