Vscode-cmake-tools: CMake Tools Does not detect Clang as a kit on Windows

[skalldri]

Brief Issue Summary

Potentially a dupe of #732, but this is on Windows 10, not Ubuntu.

CMake Tools Kit Scanning does not detect clang installed to the system path. Steps to reproduce:

1. Clean install Windows 10 v1903
2. Install CMake from here
3. Install Clang from here
4. Install VSCode and CMake Tools Extension

Expected:

1. Clang is detected as a Kit when "Scan for kits" is selected

Apparent Behavior:

1. No kits are detected when "Scan for kits" is selected

CMake Tools Log

I turned on Trace-level logging, which shows that it seems to have found Clang, and decided not to do anything:

[kit] Scanning directory C:\Program Files\LLVM\bin for compilers
....
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-console-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-datetime-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-debug-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-errorhandling-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-file-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-file-l1-2-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-file-l2-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-handle-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-heap-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-interlocked-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-libraryloader-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-localization-l1-2-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-memory-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-namedpipe-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-processenvironment-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-processthreads-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-processthreads-l1-1-1.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-profile-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-rtlsupport-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-string-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-synch-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-synch-l1-2-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-sysinfo-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-timezone-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-core-util-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-conio-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-convert-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-environment-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-filesystem-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-heap-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-locale-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-math-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-multibyte-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-private-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-process-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-runtime-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-stdio-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-string-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-time-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\api-ms-win-crt-utility-l1-1-0.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang++.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-apply-replacements.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-change-namespace.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-check.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-cl.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-cpp.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-doc.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-extdef-mapping.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-format.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-import-test.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-include-fixer.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-offload-bundler.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-query.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-refactor.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-rename.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-reorder-fields.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-scan-deps.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang-tidy.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clang.exe
[kit] Testing Clang-ish binary: C:\Program Files\LLVM\bin\clang.exe
[kit] Testing Clang-ish binary: C:\Program Files\LLVM\bin\clang.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\clangd.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\concrt140.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\find-all-symbols.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\git-clang-format
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\hmaptool
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\ld.lld.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\ld64.lld.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\libclang.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\libiomp5md.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\liblldb.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\libomp.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lld-link.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lld.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lldb-argdumper.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lldb-instr.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lldb-mi.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lldb-vscode.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\lldb.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-ar.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\LLVM-C.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-lib.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-nm.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-objcopy.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-objdump.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-profdata.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-ranlib.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-rc.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\llvm-symbolizer.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\LTO.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\modularize.exe
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\msvcp140.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\Remarks.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\scan-build
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\scan-build.bat
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\scan-view
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\ucrtbase.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\vcruntime140.dll
[kit] Checking file for compiler-ness: C:\Program Files\LLVM\bin\wasm-ld.exe
...
[kit] Found 0 kits in directory C:\Program Files\LLVM\bin
...
[kit] Skipping scan of not existing path C:\Program Files (x86)\LLVM\bin
...
[kit] Scanning directory C:\Program Files\LLVM\bin for compilers
...
[kit] Scanning directory C:\Program Files\LLVM\bin for compilers
...
[kit] Testing Clang-ish binary: C:\Program Files\LLVM\bin\clang-cl.exe
[kit] Testing Clang-ish binary: C:\Program Files\LLVM\bin\clang-cl.exe

Developer Tools Log

Platform and Versions

• Operating System: Windows 10 1903
• CMake Version: 3.15.5
• VSCode Version: 1.39.2
• CMake Tools Extension Version: 1.1.3
• Compiler/Toolchain: Clang / LLVM 9.0.0

Other Notes/Information

[skalldri]

Solution is to install Visual Studio.

[plasmobit]

clang & cmake do not need VS, so "install VS" is not a solution, but an ugly hack.

[jeremyong]

This issue should not be closed. The point of the cmake-tools-kits is to identify all major compilers installed on the system.

[bobbrow]

I'm pretty sure that this was addressed already. If you have a compiler that is not being discovered by the extension, please open a new issue and we can investigate.

[jeremyong]

Can you link the issue this was fixed in? With the most recent VSCode and extensions, and a vanilla installation of LLVM the kit wasn't detected but worked after I added it manually.

[jeremyong]

NVM I see that #823 is an open issue.