doxygen 1.16.1
=
https://github.com/doxygen/doxygen/releases/download/Release_1_16_1/doxygen-1.16.1.src.tar.gz

``` sh *** build ***
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/pkg/gnu/doxygen -Dbuild_wizard=OFF .
make -j$(nproc)
make install
```