From 01cc8bf93084d91d0a1e2258a3b7307ef5ec5852 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Tue, 2 Mar 2021 15:05:32 -0500
Subject: ExternalData: use `file(COPY_FILE)` instead of forking CMake

---
 Modules/ExternalData.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/ExternalData.cmake b/Modules/ExternalData.cmake
index b439636..032e423 100644
--- a/Modules/ExternalData.cmake
+++ b/Modules/ExternalData.cmake
@@ -944,7 +944,7 @@ function(_ExternalData_link_or_copy src dst)
     execute_process(COMMAND "${CMAKE_COMMAND}" -E create_symlink "${tgt}" "${tmp}" RESULT_VARIABLE result)
   else()
     # Create a copy.
-    execute_process(COMMAND "${CMAKE_COMMAND}" -E copy "${src}" "${tmp}" RESULT_VARIABLE result)
+    file(COPY_FILE "${src}" "${tmp}" RESULT result)
   endif()
   if(result)
     file(REMOVE "${tmp}")
-- 
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