Hi all,
I'm trying to use Clang, compiled with VS 2013 (configuration:Release,
platform:x64) as a C/C++ compiler for a simple HelloWorld CMake project.
Generation ends up with errors like "clang.exe: error: no such file or
directory: '/DWIN32'" at compiler check stage. If I understand correctly
the problem is that MSVC compiler options are fed to Clang for some
reason (maybe the "-- The C compiler identification is unknown" log
entry is related to the problem?).
Could anyone help to resolve this, please?
I also tried to change compiler ID with "-DCMAKE_C_COMPILER_ID=Clang
-DCMAKE_CXX_COMPILER_ID=Clang", then compilation succeeded, but linkage
failed (just as described in the thread "Question on usage of cmake on
Windows with clang"
http://thread.gmane.org/gmane.comp.programming.tools.cmake.user/54650).
Here the problem seems to be reversed: GNU linker options are fed to MS
linker.
************** Setup and details:
1) INCLUDE and PATH set to clang/clang-cl
2) command line environment is configured with vsvars32.bat
3) CC and CXX set to clang
$ cat CMakeLists.txt
project(test_project)
add_executable(main file.cpp)
$ cmake -G "Ninja" -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang ..
Log:
-- The C compiler identification is unknown
-- The CXX compiler identification is Clang 3.7.1
-- Check for working C compiler using: Ninja
-- Check for working C compiler using: Ninja -- broken
CMake Error at C:/Program
Files/CMake/share/cmake-3.5/Modules/CMakeTestCCompiler.cmake:61 (message):
The C compiler "D:/-Work-/llvm-3.7.1.src/-VS_build VS
2013-/Release/bin/clang.exe" is not able to compile a simple test
program.
It fails with the following output:
Change Dir: D:/-Work-/llvm-3.7.1.src/-CLANG-/CMakeFiles/CMakeTmp
Run Build Command:"C:/PROGRA~1/ninja/ninja.exe" "cmTC_2cb9d"
[1/2] Building C object CMakeFiles\cmTC_2cb9d.dir\testCCompiler.c.obj
FAILED: D:\-Work-\LLVM-3~2.SRC\-VS_BU~2\Release\bin\clang.exe /DWIN32
/D_WINDOWS /W3 -o CMakeFiles\cmTC_2cb9d.dir\testCCompiler.c.obj -c
testCCompiler.c
clang.exe: error: no such file or directory: '/DWIN32'
clang.exe: error: no such file or directory: '/D_WINDOWS'
...
OS: Windows 7 (x64)
clang version 3.7.1 (tags/RELEASE_371/final)
Target: x86_64-pc-windows-msvc
Thread model: posix
cmake version 3.5.0-rc3
Thank you!
--
Anton
--
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