[Bug 2015299] [NEW] cmake advertising wrong mlir-tblgen executable?

[Seth Arnold]

Public bug reported:

Hello, a friend reports that our LLVM 15 cmake files are advertising a
functionality that they can't satisfy:

https://discuss.pixls.us/t/are-the-obs-repos-for-darktable-dead/16928/63

url> asn (Andreas Schneider) March 25, 2023, 4:29pm #76
url> 
url> The openSUSE build is fixed, but Ubuntu doesn’t work because of:
url> 
url> [  330s] CMake Error at /usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake:1634 (message):
url> [  330s]   The imported target "mlir-tblgen" references the file
url> [  330s] 
url> [  330s]      "/usr/lib/llvm-15/bin/mlir-tblgen"
url> [  330s] 
url> [  330s]   but this file does not exist.  Possible reasons include:
url> [  330s] 
url> [  330s]   * The file was deleted, renamed, or moved to another location.
url> [  330s] 
url> [  330s]   * An install or uninstall procedure did not complete successfully.
url> [  330s] 
url> [  330s]   * The installation package was faulty and contained
url> [  330s] 
url> [  330s]      "/usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake"
url> [  330s] 
url> [  330s]   but not all the files it references.
url> 
url> I don’t know what provides mlir-tblgen now, but it looks like something changed on Ubuntu.
url> 
url> Someone with Debian/Ubuntu knowlege who can shed some light on this?


That cmake file appears to come from one package:
$ apt-file search /usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake
llvm-15-dev: /usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake

but the mlir-tblgen comes from another package:
$ apt-file search mlir-tblgen
llvm-13: /usr/share/man/man1/mlir-tblgen-13.1.gz
llvm-13-doc: /usr/share/doc/llvm-13-doc/html/CommandGuide/mlir-tblgen.html
llvm-13-doc: /usr/share/doc/llvm-13-doc/html/_sources/CommandGuide/mlir-tblgen.rst.txt
llvm-14: /usr/share/man/man1/mlir-tblgen-14.1.gz
llvm-14-doc: /usr/share/doc/llvm-14-doc/html/CommandGuide/mlir-tblgen.html
llvm-14-doc: /usr/share/doc/llvm-14-doc/html/_sources/CommandGuide/mlir-tblgen.rst.txt
llvm-15: /usr/share/man/man1/mlir-tblgen-15.1.gz
llvm-15-doc: /usr/share/doc/llvm-15-doc/html/CommandGuide/mlir-tblgen.html
llvm-15-doc: /usr/share/doc/llvm-15-doc/html/_sources/CommandGuide/mlir-tblgen.rst.txt
mlir-13-tools: /usr/bin/mlir-tblgen-13
mlir-13-tools: /usr/lib/llvm-13/bin/mlir-tblgen
mlir-14-tools: /usr/bin/mlir-tblgen-14
mlir-14-tools: /usr/lib/llvm-14/bin/mlir-tblgen
mlir-15-tools: /usr/bin/mlir-tblgen-15
mlir-15-tools: /usr/lib/llvm-15/bin/mlir-tblgen

Is our llvm-15-dev missing a Dependency:? Or should this .cmake file be
split apart to only advertise the services that it offers? Or something
else?

Thanks

** Affects: llvm-toolchain-15 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2015299

Title:
  cmake advertising wrong mlir-tblgen executable?

Status in llvm-toolchain-15 package in Ubuntu:
  New

Bug description:
  Hello, a friend reports that our LLVM 15 cmake files are advertising a
  functionality that they can't satisfy:

  https://discuss.pixls.us/t/are-the-obs-repos-for-darktable-
  dead/16928/63

  url> asn (Andreas Schneider) March 25, 2023, 4:29pm #76
  url> 
  url> The openSUSE build is fixed, but Ubuntu doesn’t work because of:
  url> 
  url> [  330s] CMake Error at /usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake:1634 (message):
  url> [  330s]   The imported target "mlir-tblgen" references the file
  url> [  330s] 
  url> [  330s]      "/usr/lib/llvm-15/bin/mlir-tblgen"
  url> [  330s] 
  url> [  330s]   but this file does not exist.  Possible reasons include:
  url> [  330s] 
  url> [  330s]   * The file was deleted, renamed, or moved to another location.
  url> [  330s] 
  url> [  330s]   * An install or uninstall procedure did not complete successfully.
  url> [  330s] 
  url> [  330s]   * The installation package was faulty and contained
  url> [  330s] 
  url> [  330s]      "/usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake"
  url> [  330s] 
  url> [  330s]   but not all the files it references.
  url> 
  url> I don’t know what provides mlir-tblgen now, but it looks like something changed on Ubuntu.
  url> 
  url> Someone with Debian/Ubuntu knowlege who can shed some light on this?

  
  That cmake file appears to come from one package:
  $ apt-file search /usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake
  llvm-15-dev: /usr/lib/llvm-15/lib/cmake/llvm/LLVMExports.cmake

  but the mlir-tblgen comes from another package:
  $ apt-file search mlir-tblgen
  llvm-13: /usr/share/man/man1/mlir-tblgen-13.1.gz
  llvm-13-doc: /usr/share/doc/llvm-13-doc/html/CommandGuide/mlir-tblgen.html
  llvm-13-doc: /usr/share/doc/llvm-13-doc/html/_sources/CommandGuide/mlir-tblgen.rst.txt
  llvm-14: /usr/share/man/man1/mlir-tblgen-14.1.gz
  llvm-14-doc: /usr/share/doc/llvm-14-doc/html/CommandGuide/mlir-tblgen.html
  llvm-14-doc: /usr/share/doc/llvm-14-doc/html/_sources/CommandGuide/mlir-tblgen.rst.txt
  llvm-15: /usr/share/man/man1/mlir-tblgen-15.1.gz
  llvm-15-doc: /usr/share/doc/llvm-15-doc/html/CommandGuide/mlir-tblgen.html
  llvm-15-doc: /usr/share/doc/llvm-15-doc/html/_sources/CommandGuide/mlir-tblgen.rst.txt
  mlir-13-tools: /usr/bin/mlir-tblgen-13
  mlir-13-tools: /usr/lib/llvm-13/bin/mlir-tblgen
  mlir-14-tools: /usr/bin/mlir-tblgen-14
  mlir-14-tools: /usr/lib/llvm-14/bin/mlir-tblgen
  mlir-15-tools: /usr/bin/mlir-tblgen-15
  mlir-15-tools: /usr/lib/llvm-15/bin/mlir-tblgen

  Is our llvm-15-dev missing a Dependency:? Or should this .cmake file
  be split apart to only advertise the services that it offers? Or
  something else?

  Thanks

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