FoBiS : FoBiS.py, a Fortran Building System for poor men ( https://github.com/szaghi/FoBiS )
cargo-make : Rust task runner and build tool ( https://sagiegurari.github.io/cargo-make )
fpm : Fortran Package Manager (fpm) ( https://fpm.fortran-lang.org )
fypp : Fypp - Python powered Fortran preprocessor ( https://github.com/aradi/fypp )
just : Just a command runner (with syntax inspired by 'make') ( HOMEPAGE=" )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a guru
For Paludis use this rsync : rsync://gentoo.zugaina.org/guru-portage
If you have a problem : ycarus(-at-)zugaina.org