[cmake] Replace -Wall with /W4 in clang-cl options now that -Wall aliases -Weverything
Instead, reuse the code-path for cl.exe that adds /W4 , which for clang-cl
aliases clang's "-Wall -Wextra" which matches what clang-cl's /Wall
previously aliased.
This should restore the verbosity of a Windows selfhost build back to
its previous levels.
Differential Revision: https://reviews.llvm.org/D40603
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319330 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed