The latest version of metisse can be downloaded via the www site. You read version 0.3.0 documentation.
You need the Nucleo library (latest verison) installed on your system. The nucleo-config script should be in your PATH.
As usual, for preparing the build type:
./configure --prefix=where_you_want_to_install [other relevant options]
the default Xwnc font path is
/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/75dpi,/usr/lib/X11/fonts/100dpi
you may change this path with the --font-path option. Similarly, you may have to use the "--with-fontenc-file" option if your font encoding directory file is not at /usr/lib/X11/fonts/encodings/encodings.dir.
Type
configure --help=recursive
for the full list of options to configure.
Then:
make su # if needed make installNote that the metisse modified FVWM does not replace your regular FVWM. The fvwm executable is called fvwmi and the modules are under prefix/libexec/fvwm-insitu/X.Y.Z/