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[cmake] Note future cleanup in comment. NFC

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CMake 3.6 introduced CMAKE_TRY_COMPILE_PLATFORM_VARIABLES, which solves
precisely the problem that necessitated init_user_prop, so we can switch
over whenever we bump our minimum CMake requirement.

llvm-svn: 352790
This commit is contained in:
Shoaib Meenai 2019-01-31 20:32:45 +00:00
parent 413877fd20
commit 95e2e63b36
1 changed files with 3 additions and 1 deletions
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4
cmake/platforms/WinMsvc.cmake
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@ -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}}")