llvm dev package missing libclangBasic

(Using 19.10 fully uptodate)

I am using cmake to build emacs irony server

Cmake is further loading a llvm cmake file;

/usr/lib/llvm-8/lib/cmake/clang/ClangTargets.cmake

and this tests for existence of file

/usr/lib/llvm-8/lib/libclangBasic.a

This is the same for llvm-9 package. So my conclusion is that the packaging of llvm dev is broken and has been broken for sometime, I have seen other people report this broken package as well.

Other than downloading llvm/clang and building is there a workaround.

Additionally, can you fix the package going forward?

If anyone is interested i found the solution to my own problem!

Stupidly I was missing a further clang-dev package install. I had convinced myself there was a problem with my install as i had seen the identical issue talk about on the Web.