Cannot find "docs/ocamldoc/html/." error while installing llvm on Debian Trixie (current testing)

[nataraj-hates-MS-for-stealing-github]

Hi I am building current (a5e969a) main branch on Debian Trixie (Current Testing) and getting "file INSTALL cannot find" error for docs/ocamldoc/html/.

How to reporoduce:

to get all build dependencies that are needed I do

sudo apt-get build-dep llvm-toolchain-19

then

git clone https://github.com/llvm/llvm-project.git
cd llvm-project
cmake -S llvm -B build -G "Unix Makefiles" -DLLVM_ENABLE_PROJECTS=clang -DCMAKE_BUILD_TYPE=Debug
cd build/
make -j16
sudo make install

And you will finally get an error

-- Installing: /usr/local/bin/verify-uselistorder
-- Set non-toolchain portion of runtime path of "/usr/local/bin/verify-uselistorder" to "$ORIGIN/../lib"
CMake Error at docs/cmake_install.cmake:46 (file):
  file INSTALL cannot find
  "/home/nataraj/dev/clang/bugreport/llvm-project/build/docs/ocamldoc/html/.":
  No such file or directory.
Call Stack (most recent call first):
  cmake_install.cmake:162 (include)

This can be manually fixed by manually creating docs/ocamldoc/html/. dir, but I guess it would be better if it work well out of box.