Msys2 clang64

$ pacman -S mingw-w64-clang-x86_64-toolchain
:: There are 21 members in group mingw-w64-clang-x86_64-toolchain:
:: Repository clang64
   1) mingw-w64-clang-x86_64-clang  2) mingw-w64-clang-x86_64-clang-analyzer
   3) mingw-w64-clang-x86_64-clang-tools-extra  4) mingw-w64-clang-x86_64-compiler-rt
   5) mingw-w64-clang-x86_64-crt-git  6) mingw-w64-clang-x86_64-gcc-compat
   7) mingw-w64-clang-x86_64-headers-git  8) mingw-w64-clang-x86_64-libc++
   9) mingw-w64-clang-x86_64-libmangle-git  10) mingw-w64-clang-x86_64-libunwind
   11) mingw-w64-clang-x86_64-libwinpthread-git  12) mingw-w64-clang-x86_64-lld
   13) mingw-w64-clang-x86_64-lldb  14) mingw-w64-clang-x86_64-llvm
   15) mingw-w64-clang-x86_64-make  16) mingw-w64-clang-x86_64-openmp
   17) mingw-w64-clang-x86_64-pkgconf  18) mingw-w64-clang-x86_64-polly
   19) mingw-w64-clang-x86_64-tools-git  20) mingw-w64-clang-x86_64-winpthreads-git
   21) mingw-w64-clang-x86_64-winstorecompat-git

Enter a selection (default=all):
resolving dependencies...
looking for conflicting packages...

Packages (44) mingw-w64-clang-x86_64-bzip2-1.0.8-2  mingw-w64-clang-x86_64-expat-2.5.0-1
              mingw-w64-clang-x86_64-gettext-0.21.1-1  mingw-w64-clang-x86_64-libffi-3.4.4-1
              mingw-w64-clang-x86_64-libiconv-1.17-3  mingw-w64-clang-x86_64-libsystre-1.0.1-4
              mingw-w64-clang-x86_64-libtre-git-r128.6fb7206-2
              mingw-w64-clang-x86_64-libxml2-2.10.3-1  mingw-w64-clang-x86_64-lua-5.4.4-1
              mingw-w64-clang-x86_64-mpdecimal-2.5.1-1
              mingw-w64-clang-x86_64-ncurses-6.4.20230211-1  mingw-w64-clang-x86_64-openssl-3.1.0-1
              mingw-w64-clang-x86_64-python-3.10.10-1  mingw-w64-clang-x86_64-python-six-1.16.0-3
              mingw-w64-clang-x86_64-readline-8.2.001-6  mingw-w64-clang-x86_64-sqlite3-3.41.1-1
              mingw-w64-clang-x86_64-tcl-8.6.12-1  mingw-w64-clang-x86_64-termcap-1.3.1-6
              mingw-w64-clang-x86_64-tk-8.6.12-1  mingw-w64-clang-x86_64-tzdata-2022g-1
              mingw-w64-clang-x86_64-xz-5.4.1-1  mingw-w64-clang-x86_64-zlib-1.2.13-3
              mingw-w64-clang-x86_64-zstd-1.5.4-1  mingw-w64-clang-x86_64-clang-15.0.7-3
              mingw-w64-clang-x86_64-clang-analyzer-15.0.7-3
              mingw-w64-clang-x86_64-clang-tools-extra-15.0.7-3
              mingw-w64-clang-x86_64-compiler-rt-15.0.7-3
              mingw-w64-clang-x86_64-crt-git-10.0.0.r234.g283e5b23a-1
              mingw-w64-clang-x86_64-gcc-compat-15.0.7-3
              mingw-w64-clang-x86_64-headers-git-10.0.0.r234.g283e5b23a-1
              mingw-w64-clang-x86_64-libc++-15.0.7-3
              mingw-w64-clang-x86_64-libmangle-git-10.0.0.r234.g283e5b23a-1
              mingw-w64-clang-x86_64-libunwind-15.0.7-3
              mingw-w64-clang-x86_64-libwinpthread-git-10.0.0.r234.g283e5b23a-1
              mingw-w64-clang-x86_64-lld-15.0.7-3  mingw-w64-clang-x86_64-lldb-15.0.7-2
              mingw-w64-clang-x86_64-llvm-15.0.7-3  mingw-w64-clang-x86_64-make-4.4-2
              mingw-w64-clang-x86_64-openmp-15.0.7-3  mingw-w64-clang-x86_64-pkgconf-1~1.8.0-2
              mingw-w64-clang-x86_64-polly-15.0.7-2
              mingw-w64-clang-x86_64-tools-git-10.0.0.r234.g283e5b23a-1
              mingw-w64-clang-x86_64-winpthreads-git-10.0.0.r234.g283e5b23a-1
              mingw-w64-clang-x86_64-winstorecompat-git-10.0.0.r234.g283e5b23a-1

pacman -S --noconfirm mingw-w64-clang-x86_64-python
pacman -S --noconfirm mingw-w64-clang-x86_64-python-pip
pacman -S --noconfirm mingw-w64-clang-x86_64-python-wheel

pip install pynvim --upgrade

pacman -S --noconfirm unzip
pacman -S --noconfirm expect
pacman -S --noconfirm rsync
pacman -S --noconfirm openssh

clang64.exe

C:\gnu\msys64\clang64\bin
C:\gnu\msys64\usr\bin

ccls

pacman -S --noconfirm mingw-w64-clang-x86_64-jq
pacman -S --noconfirm mingw-w64-clang-x86_64-ninja
pacman -S --noconfirm mingw-w64-clang-x86_64-cmake
pacman -S --noconfirm mingw-w64-clang-x86_64-mlir
pacman -S --noconfirm mingw-w64-clang-x86_64-ncurses
pacman -S --noconfirm mingw-w64-clang-x86_64-rapidjson