Comment # 7 on bug 1155416 from Dan Cermak

(In reply to Aaron Puchert from comment #6)
> By the way, if your package uses CMake, such a patch might be accepted by
> upstream:
> 
> # If not already there...
> find_package(Clang CONFIG REQUIRED)
> 
> if (TARGET clang-cpp AND NOT TARGET clangBasic)
>   target_link_libraries(... PRIVATE clang-cpp)
> else()
>   # Original code:
>   target_link_libraries(...
>     PRIVATE
>     clangBasic
>     ...
>     )
> endif()
> 
> That's pretty conservative and uses clang-cpp only if the component
> libraries are not available.

Thanks! That's more or less what I came up with:
https://patch-diff.githubusercontent.com/raw/MaskRay/ccls/pull/518.patch (I've
added an additional call to find_library(), didn't know find_package() was
enough).