Hi,
I'm building a project with CMake 3.9 using clang-cl.exe driver [1]
from LLVM/clang 4.0 enabled with Visual Studio 2015 environment.
CMake detects the compiler as Clang 4.0.0:
-- The C compiler identification is Clang 4.0.0
-- The CXX compiler identification is Clang 4.0.0
-- Check for working C compiler: C:/Program Files/LLVM/bin/clang-cl.exe
-- Check for working C compiler: C:/Program Files/LLVM/bin/clang-cl.exe -- works
and my project builds fine.
In my CMakeLists.txt, there is this flags update:
if(MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
endif()
and in build log I see:
clang-cl.exe: warning: argument unused during compilation: '/MP'
I have double-checked and MSVC is defined and set True for clang-cl.exe.
Is this correct?
Is clang-cl.exe driver considered to be "when using Microsoft Visual C++" [2]
[1] https://clang.llvm.org/docs/UsersManual.html#clang-cl
[2] https://cmake.org/cmake/help/v3.9/variable/MSVC.html
Best regards,
--
Mateusz Loskot, http://mateusz.loskot.net
--
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