[llvm-dev] cmake finishes OK for all the projects except debuginfo-tests. (original) (raw)

David Spickett via llvm-dev llvm-dev at lists.llvm.org
Mon Feb 17 01:38:58 PST 2020

Hi Neil,

CMake is using whatever "python" is, which is Python2 for me so I get the same error.

You can specify the Python exe directly[0] by adding this: -DPYTHON_EXECUTABLE=which python3

That gets you to: CMake Error at /work/open_source/llvm-project/llvm/cmake/modules/AddLLVM.cmake:1543 (add_dependencies): The dependency target "clang" of target "check-debuginfo" does not exist.

To fix that you can just add "clang" to LLVM_ENABLE_PROJECTS.

There is a specific FindPython3 module [1] that debuginfo-tests could use but I'm not sure if it's available in the minimum CMake version we require.

Thanks, David Spickett.

[0] https://cmake.org/cmake/help/v3.0/module/FindPythonInterp.html [1] https://cmake.org/cmake/help/v3.12/module/FindPython3.html

From: llvm-dev <llvm-dev-bounces at lists.llvm.org> on behalf of Neil Nelson via llvm-dev <llvm-dev at lists.llvm.org> Sent: 16 February 2020 02:42 To: llvm-dev at lists.llvm.org <llvm-dev at lists.llvm.org> Subject: [llvm-dev] cmake finishes OK for all the projects except debuginfo-tests.

cmake -G Ninja -DLLVM_ENABLE_PROJECTS="debuginfo-tests" -DLLVM_USE_LINKER=lld -DCMAKE_BUILD_TYPE="Release" -DLLVM_TARGETS_TO_BUILD=X86 -Wno-dev ../llvm &> ../../cmake.log

in cmake.log -- Targeting X86 CMake Error at /home/nnelson/Documents/llvm-project/debuginfo-tests/CMakeLists.txt:30 (message): Cannot run debuginfo-tests without python 3

installed python3 --version Python 3.7.5

python --version Python 2.7.17

in llvm-project/debuginfo-tests/CMakeLists.txt elseif(PYTHON_VERSION_MAJOR LESS 3) message(FATAL_ERROR "Cannot run debuginfo-tests without python 3")

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