[PATCH] D47094: [CMake] Reland "Detect the compiler runtime and standard library"

[Petr Hosek via Phabricator via llvm-commits]

phosek updated this revision to Diff 147618.
phosek added a comment.

So after testing this on Windows, I found out it was actually `-###` that's breaking. The problem is that I cannot use `check_c_compiler_flag` because `-###` breaks CMake so I have to use compiler detection instead, `clang-cl` also seems to be refusing both `-###` and `-print-libgcc-file-name` so disabling both on Windows. Let me know if you have any other idea on how to address this.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D47094

Files:
  compiler-rt/CMakeLists.txt
  compiler-rt/cmake/Modules/CompilerRTUtils.cmake
  compiler-rt/cmake/config-ix.cmake

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