Closed
Description
- Checked for duplicates
Describe the bug
Build master with builtin_llvm=OFF using system LLVM. CMake configuration fails with:
-- Using LLVM external library - 13.0.1
-- Clang version: 13.0.1
-- Could NOT find Git (missing: GIT_EXECUTABLE)
-- Not building amdgpu-arch: hsa-runtime64 not found
-- Cling version (from VERSION file): ROOT_1.0~dev
-- Cling will look for C++ headers in '/usr/include/c++/12:/usr/include/x86_64-linux-gnu/c++/12:/usr/include/c++/12/backward' at runtime.
-- And then fallback to: 'ccache'
CMake Error: Could not open file for write in copy operation /usr/lib/llvm-13/lib/cmake/cling/ClingConfig.cmake.tmp
CMake Error: : System Error: No such file or directory
CMake Error at interpreter/cling/cmake/modules/CMakeLists.txt:22 (configure_file):
configure_file Problem configuring file
The error is thrown in interpreter/cling/cmake/modules/CMakeLists.txt:22-25 when trying to create a file in cling_cmake_builddir which is not writable.
The bug originates from interpreter/cling/cmake/modules/CMakeLists.txt:5 and was introduced in 2b283cc from #10294.
Expected behavior
I think there are three options to fix this:
- 2b283cc is reverted (the commit mentions some fixes though)
- CMake checks for
builtin_llvm=OFFand sets the dir accordingly - Some other path is found that prevents the issues mentioned in 2b283cc (maybe
CLING_BINARY_DIR?)
To Reproduce
Build from master with builtin_llvm=OFF
Setup
git master, Debian Sid