Compiling OpenFOAM v.2006

Hi there, I'm trying to compile OpenFOAM v.2006 and have followed the instructions as per this webpage: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Build.md

There are no issues with the foamSystemCheck. But when I go to execute the ./Allwmake command, there is an error message (which I have attached).

Any advice would be appreciated!

Kind regards,

Tasman.