[llvm-bugs] [Bug 47878] New: LLVM/Clang Windows installer doesn't provide CMake package information

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47878

            Bug ID: 47878
           Summary: LLVM/Clang Windows installer doesn't provide CMake
                    package information
           Product: Packaging
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Windows Installer
          Assignee: unassignedbugs at nondot.org
          Reporter: cristian.adam at gmail.com
                CC: llvm-bugs at lists.llvm.org

After installing LLVM-11.0.0-win64.exe there is no useful CMake package
information present:

c:\Program Files\LLVM\lib\cmake
$ tree /f
C:.
└───llvm
        LLVMConfigExtensions.cmake

Without the CMake package files one cannot simply configure a project that
consumes LLVM libraries with CMake like for example:

list(APPEND CMAKE_PREFIX_PATH "c:\\Program Files\\LLVM")

find_package(Clang)
target_link_libraries(my_target PRIVATE Clang)


In comparsion the Ubuntu 20.04
clang+llvm-11.0.0-x86_64-linux-gnu-ubuntu-20.04.tar.xz package contains:

C:\llvm\clang+llvm-11.0.0-x86_64-linux-gnu-ubuntu-20.04\lib\cmake
$ tree /f
C:.
├───clang
│       ClangConfig.cmake
│       ClangTargets-release.cmake
│       ClangTargets.cmake
│
├───lld
│       LLDConfig.cmake
│       LLDTargets-release.cmake
│       LLDTargets.cmake
│
├───llvm
│       AddLLVM.cmake
│       AddLLVMDefinitions.cmake
│       AddOCaml.cmake
│       AddSphinxTarget.cmake
│       CheckAtomic.cmake
│       CheckCompilerVersion.cmake
│       CheckLinkerFlag.cmake
│       ChooseMSVCCRT.cmake
│       CrossCompile.cmake
│       DetermineGCCCompatible.cmake
│       FindGRPC.cmake
│       FindLibpfm.cmake
│       FindOCaml.cmake
│       FindSphinx.cmake
│       FindZ3.cmake
│       GenerateVersionFromVCS.cmake
│       HandleLLVMOptions.cmake
│       HandleLLVMStdlib.cmake
│       LLVM-Config.cmake
│       LLVMConfig.cmake
│       LLVMConfigExtensions.cmake
│       LLVMConfigVersion.cmake
│       LLVMDistributionSupport.cmake
│       LLVMExports-release.cmake
│       LLVMExports.cmake
│       LLVMExternalProjectUtils.cmake
│       LLVMInstallSymlink.cmake
│       LLVMProcessSources.cmake
│       TableGen.cmake
│       TensorFlowCompile.cmake
│       UseLibtool.cmake
│       VersionFromVCS.cmake
│
├───mlir
│       AddMLIR.cmake
│       MLIRConfig.cmake
│       MLIRTargets-release.cmake
│       MLIRTargets.cmake
│
└───polly
        PollyConfig.cmake
        PollyExports-all.cmake

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