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-rw-r--r--llvm/cmake/platforms/WinMsvc.cmake4
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/cmake/platforms/WinMsvc.cmake b/llvm/cmake/platforms/WinMsvc.cmake
index f625d0e3c05..d038df97951 100644
--- a/llvm/cmake/platforms/WinMsvc.cmake
+++ b/llvm/cmake/platforms/WinMsvc.cmake
@@ -92,7 +92,9 @@
# won't see the value of any arguments the user passed via -D. Since these are
# necessary to properly configure MSVC in both the top-level configuration as well as
# all feature-test invocations, we set environment variables with the values so that
-# these environments get inherited by child invocations.
+# these environments get inherited by child invocations. We can switch to
+# CMAKE_TRY_COMPILE_PLATFORM_VARIABLES once our minimum supported CMake version
+# is 3.6 or greater.
function(init_user_prop prop)
if(${prop})
set(ENV{_${prop}} "${${prop}}")
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