Why does my C compiler (Clang) fail to compile a simple test program when opening a CMake project in CLion?
I'm trying to setup CLion to run with CMake, Ninja, Clang and Clang++. To test it I tried opening a new project, the Clang source. When opening a new project I selected ~/src/llvm-project/clang/
Clion then opens the project and proceeds to immediately give me the following debug output:
/snap/clion/85/bin/cmake/linux/bin/cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_MAKE_PROGRAM=/usr/bin/ninja -DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=/usr/bin/clang++ -G "CodeBlocks - Unix Makefiles" /home/kim/src/llvm-project/clang -- The C compiler identification is Clang 6.0.0 -- The CXX compiler identification is Clang 6.0.0 -- Check for working C compiler: /usr/bin/clang -- Check for working C compiler: /usr/bin/clang -- broken CMake Error at /snap/clion/85/bin/cmake/linux/share/cmake-3.15/Modules/CMakeTestCCompiler.cmake:60 (message): The C compiler
"/usr/bin/clang"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/kim/src/llvm-project/clang/cmake-build-debug/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/ninja cmTC_a3bcb/fast && ninja: error: loading 'build.ninja': No such file or directory
CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:10 (project)
-- Configuring incomplete, errors occurred! See also "/home/kim/src/llvm-project/clang/cmake-build-debug/CMakeFiles/CMakeOutput.log". See also "/home/kim/src/llvm-project/clang/cmake-build-debug/CMakeFiles/CMakeError.log".
CMakeOutput.log contains:
The system is: Linux - 5.0.0-29-generic - x86_64 Compiling the C compiler identification source file "CMakeCCompilerId.c" succeeded. Compiler: /usr/bin/clang Build flags: Id flags:
The output was: 0
Compilation of the C compiler identification source "CMakeCCompilerId.c" produced "a.out"
The C compiler identification is Clang, found in "/home/kim/src/llvm-project/clang/cmake-build-debug/CMakeFiles/3.15.3/CompilerIdC/a.out"
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded. Compiler: /usr/bin/clang++ Build flags: Id flags:
The output was: 0
Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "a.out"
The CXX compiler identification is Clang, found in "/home/kim/src/llvm-project/clang/cmake-build-debug/CMakeFiles/3.15.3/CompilerIdCXX/a.out"
The CMakeError.log contains:
Determining if the C compiler works failed with the following output: Change Dir: /home/kim/src/llvm-project/clang/cmake-build-debug/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/ninja cmTC_a3bcb/fast && ninja: error: loading 'build.ninja': No such file or directory
