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Help with triton build problem in unstable (RC isse)?

Hi.  I could use some help figuring out what is wrong with the triton
build in unstable, <URL: https://bugs.debian.org/1052930 >.  As far as I
can tell, the problem is with build dependencies and the cmake build
system.  I tried to replace the build dependencies libmlir-14-dev and
mlir-14-tools with libmlir-16-dev and mlir-16-tools to match the cmake
detected llvm version, in the hope that the issue was a version skew
problem, but did not get the build working.  It only gave me a new and
equally confusing error:

[...]
-- Found LLVM: /usr/lib/llvm-16 (found suitable version "16.0.6", minimum required is "11") 
-- Found LLVM 
-- Performing Test HAVE_FFI_CALL
-- Performing Test HAVE_FFI_CALL - Success
-- Found FFI: /usr/lib/x86_64-linux-gnu/libffi.so  
-- Performing Test Terminfo_LINKABLE
-- Performing Test Terminfo_LINKABLE - Success
-- Found Terminfo: /usr/lib/x86_64-linux-gnu/libtinfo.so  
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.3")  
-- Found zstd: /usr/lib/x86_64-linux-gnu/libzstd.so  
-- Found LibXml2: /usr/lib/x86_64-linux-gnu/libxml2.so (found version "2.9.14") 
-- Found CURL: /usr/lib/x86_64-linux-gnu/libcurl.so (found version "8.6.0")  
-- Linker detection: GNU ld
WARNING: triton-translate links LLVM and LLVMCore!
WARNING: triton-translate links LLVM and LLVMSupport!
WARNING: triton-translate links LLVM and LLVMOption!
WARNING: triton-translate links LLVM and LLVMCodeGen!
WARNING: triton-translate links LLVM and LLVMAsmParser!
-- Configuring done (1.9s)
CMake Error at /usr/lib/llvm-16/lib/cmake/llvm/AddLLVM.cmake:554 (add_dependencies):
  The dependency target "MLIRArithmetic" of target "obj.TritonIR" does not
  exist.
Call Stack (most recent call first):
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:303 (llvm_add_library)
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:580 (add_mlir_library)
  lib/Dialect/Triton/IR/CMakeLists.txt:1 (add_mlir_dialect_library)


CMake Error at /usr/lib/llvm-16/lib/cmake/llvm/AddLLVM.cmake:554 (add_dependencies):
  The dependency target "MLIRSCF" of target "obj.TritonIR" does not exist.
Call Stack (most recent call first):
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:303 (llvm_add_library)
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:580 (add_mlir_library)
  lib/Dialect/Triton/IR/CMakeLists.txt:1 (add_mlir_dialect_library)


CMake Error at /usr/lib/llvm-16/lib/cmake/llvm/AddLLVM.cmake:554 (add_dependencies):
  The dependency target "MLIRStandard" of target "obj.TritonIR" does not
  exist.
Call Stack (most recent call first):
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:303 (llvm_add_library)
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:580 (add_mlir_library)
  lib/Dialect/Triton/IR/CMakeLists.txt:1 (add_mlir_dialect_library)


CMake Error at /usr/lib/llvm-16/lib/cmake/llvm/AddLLVM.cmake:554 (add_dependencies):
  The dependency target "MLIRLLVMIR" of target "obj.TritonLLVMIR" does not
  exist.
Call Stack (most recent call first):
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:303 (llvm_add_library)
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:592 (add_mlir_library)
  lib/Target/LLVMIR/CMakeLists.txt:1 (add_mlir_translation_library)


CMake Error at /usr/lib/llvm-16/lib/cmake/llvm/AddLLVM.cmake:554 (add_dependencies):
  The dependency target "MLIRSCFToStandard" of target "obj.TritonLLVMIR" does
  not exist.
Call Stack (most recent call first):
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:303 (llvm_add_library)
  /usr/lib/llvm-16/lib/cmake/mlir/AddMLIR.cmake:592 (add_mlir_library)
  lib/Target/LLVMIR/CMakeLists.txt:1 (add_mlir_translation_library)


-- Generating done (0.1s)
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY
    FETCHCONTENT_FULLY_DISCONNECTED
    PYTHON_EXECUTABLE
    PYTHON_INCLUDE_DIR
    PYTHON_LIBRARY
    Python3_EXECUTABLE
    Python3_INCLUDE_DIR
    Python3_LIBRARY
    Python_EXECUTABLE
    Python_INCLUDE_DIR
    Python_LIBRARY


CMake Generate step failed.  Build files cannot be regenerated correctly.
        cd .pybuild/cpython3_3.12_triton/build && tail -v -n \+0 CMakeCache.txt
[...]

I am not very good with cmake, and would love some feedback on how to
fix this.  I am available on #debian-ai if someone want to discuss this
on IRC.

-- 
Happy hacking
Petter Reinholdtsen
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