Install target missing LLVMConfig.cmake on Windows

[rnichollx]

find_package(LLVM REQUIRED)

Does not work on Windows using the Windows installer for LLVM by default.

CMake Error at CMakeLists.txt:4 (find_package):
  Could not find a package configuration file provided by "LLVM" with any of
  the following names:

    LLVMConfig.cmake
    llvm-config.cmake

  Add the installation prefix of "LLVM" to CMAKE_PREFIX_PATH or set
  "LLVM_DIR" to a directory containing one of the above files.  If "LLVM"
  provides a separate development package or SDK, be sure it has been
  installed.

A file should be generated by the installer at a location such as C:\Program Files\LLVM\cmake\LLVMConfig.cmake to enable automatic detection of LLVM to work.

[tatlook]

I had same problem with both LLVM-15.0.7-win32.exe and LLVM-15.0.7-win64.exe.

[ebrianne]

Can something be followed up on this?

[zmodem]

Duplicate of #53052