[PATCH] D84987: Pass bugreport URL to standalone clang build

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

In D84987#2186639 <https://reviews.llvm.org/D84987#2186639>, @mgorny wrote:

> In D84987#2186113 <https://reviews.llvm.org/D84987#2186113>, @MaskRay wrote:
>
>> I am not familiar with the standalone clang build. Can you share a command?
>
> You install LLVM first, then run `cmake <llvm-project-path>/clang` and build it.

Can you elaborate? The so-called "standalone build" isn't documented anywhere. My llvm-config is in `/tmp/RelA/bin/llvm-config`. I run `PATH=/tmp/RelA/bin:$PATH cmake -GNinja -H/path/to//clang -BTest`, it fails:

  -- Performing Test CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG - Failed
  CMake Error at /tmp/RelA/lib/cmake/llvm/AddLLVM.cmake:823 (add_executable):
    add_executable cannot create target "clang-tblgen" because an imported
    target with the same name already exists.
  Call Stack (most recent call first):
    /tmp/RelA/lib/cmake/llvm/TableGen.cmake:148 (add_llvm_executable)
    utils/TableGen/CMakeLists.txt:3 (add_tablegen)
  
  
  CMake Error at /tmp/RelA/lib/cmake/llvm/LLVM-Config.cmake:105 (target_link_libraries):
    Cannot specify link libraries for target "clang-tblgen" which is not built
    by this project.
  Call Stack (most recent call first):
    /tmp/RelA/lib/cmake/llvm/LLVM-Config.cmake:93 (explicit_llvm_config)
    /tmp/RelA/lib/cmake/llvm/AddLLVM.cmake:867 (llvm_config)
    /tmp/RelA/lib/cmake/llvm/TableGen.cmake:148 (add_llvm_executable)
    utils/TableGen/CMakeLists.txt:3 (add_tablegen)
  
  
  -- Configuring incomplete, errors occurred!
  See also "/tmp/c/Test/CMakeFiles/CMakeOutput.log".
  See also "/tmp/c/Test/CMakeFiles/CMakeError.log".


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