Doxygen: cannot find the shared library(s) 'libclang.so.6'

While running doxygen I get the following error:

doxygen: error while loading shared libraries: libclang.so.6: cannot open shared object file: No such file or directory

I have installed doxygen using sudo apt install doxygen on Ubuntu 17. In /usr/lib/x86_64-linux-gnu I have libclang-4.0.so.1 and libclang-5.0.so.1 but not libclang.so.6.

I have tried reinstalling doxygen and clang it doesn't help.

I also tried making a symbolic link called libclang.so.6 to the existing file libclang-5.0.so.1 as done here but it leads to this error:

doxygen: /usr/lib/x86_64-linux-gnu/libclang.so.6: version `LLVM_6.0' not found (required by doxygen)

How to resolve this error and get doxygen working?

The problem is solved by using this alternative method of installation. Follow these steps:

1. Get copy of the repository

   git clone https://github.com/doxygen/doxygen.git
   cd doxygen
   

2. Build

   mkdir build
   cd build
   cmake -G "Unix Makefiles" ..
   make
   

3. Install

   sudo make install