Comment 3 for bug 1910131

Yet, the official proj documentation states that it should work with cmake (https://proj.org/development/cmake.html) and when installing from source, the following script indeed installs proj-config.cmake and the likes in /usr/local/lib/cmake/proj.

```shell
wget https://download.osgeo.org/proj/proj-7.2.1.tar.gz
tar -xzf proj-7.2.1.tar.gz
cd proj-7.2.1
mkdir build
cd build
cmake ..
cmake --build . --target install
```