Make sure to set the path to your LLVM build directory. The llvm-config executable is located in bin\Release or bin\Debug , reflecting the build version.
Installing Clang for QDoc | QDoc Manual 5.15.6 - Qt Documentation
doc.qt.io › qdoc-guide-clang
llvm-config does not exist in windows prebuilt binaries. You need to compile from the source code to get it. Grab CMAKE > 3.5 , install it and make sure you add it to PATH. In cmd, type cmake .
Where is llvm-config in Windows? - Stack Overflow
stackoverflow.com › questions › where-is-llvm-config-in-windows
LLVM Debian/Ubuntu packages. Packages are available for amd64, i386 (except for recent Ubuntu) and S390X. This for both the stable, old-stable and development branches (currently 12, 13 and 14).
LLVM Debian/Ubuntu packages
LLVM is a C/C++ compiler toolset just like GCC. LLVM can compile C, C++ and Objective-C. Clang provided by the LLVM toolset is able to compile C and C++ codes faster than GCC. The LLVM debugger LLDB is much more memory efficient and very fast at loading symbols compared to GCC.
Install LLVM on Ubuntu - Linux Hint
linuxhint.com › install-llvm-ubuntu