[j.0] hugo + OpenGL dependency ()

Merging branch 'j.0'  into 'main'.

See merge request !2739

hugo/content/installation/building/unix/third-party.md

@@ -52,12 +52,15 @@ very similar.
 Install required packages:
 ```
 $ sudo apt-get install build-essential git cmake \
-  libgsl-dev libfftw3-dev libtiff5-dev \
+  libgsl-dev libfftw3-dev libtiff-dev \
   libboost-dev libboost-iostreams-dev \
   libboost-program-options-dev libboost-regex-dev \
   libcerf-dev qt6-base-dev qt6-svg-dev
 ```
 
+If CMake fails with "Could NOT find OpenGL", then install `libgl1-mesa-dev`.
+If it fails with "Could NOT find OpenGL (missing: EGL)", then install `libegl1-mesa-dev`.
+
 We assume that Python is [installed under pyenv]({{% relref "installation/py/linux" %}}));
 otherwise we also need the packages
 ```