Build backend error

[juhao-code]

Hello,there is a problem when i build the backend

-- The C compiler identification is Clang 10.0.0
-- The CXX compiler identification is unknown
-- Check for working C compiler: /usr/local/bin/clang-10
-- Check for working C compiler: /usr/local/bin/clang-10 -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/clang++-10
-- Check for working CXX compiler: /usr/bin/clang++-10 -- broken
CMake Error at /usr/share/cmake-3.16/Modules/CMakeTestCXXCompiler.cmake:53 (message):
The C++ compiler

"/usr/bin/clang++-10"

is not able to compile a simple test program.

It fails with the following output:

Change Dir: /home/suiyize/symcc_source/symcc_build_simple/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_e79ec && [1/2] Building CXX object CMakeFiles/cmTC_e79ec.dir/testCXXCompiler.cxx.o
FAILED: CMakeFiles/cmTC_e79ec.dir/testCXXCompiler.cxx.o 
/usr/bin/clang++-10     -o CMakeFiles/cmTC_e79ec.dir/testCXXCompiler.cxx.o -c testCXXCompiler.cxx
: CommandLine Error: Option 'help-list' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
ninja: build stopped: subcommand failed.

CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:16 (project)

-- Configuring incomplete, errors occurred!
See also "/home/suiyize/symcc_source/symcc_build_simple/CMakeFiles/CMakeOutput.log".
See also "/home/suiyize/symcc_source/symcc_build_simple/CMakeFiles/CMakeError.log".

and the command is
CC=clang-10 CXX=clang++-10 cmake -G Ninja -DQSYM_BACKEND=OFF -DCMAKE_BUILD_TYPE=RelWithDebInfo -DZ3_TRUST_SYSTEM_VERSION=on -DLLVM_DIR=/usr/lib/llvm-10/cmake ~/symcc_source && ninja check

[Sebastian Poeplau]

Is your clang++-10 an unmodified version? Does it work when you use it on a simple C++ test program? The error seems to be a problem with the compiler, not with SymCC: the failing command just tries to compile a CMake test program...

/usr/bin/clang++-10     -o CMakeFiles/cmTC_e79ec.dir/testCXXCompiler.cxx.o -c testCXXCompiler.cxx

[aurelf]

Without new input we cannot help here, closing the bug.
Feel free to reopen with responses to the above questions.