FVWM uses automake and friends as its build process.
FVWM has a bootstrap script to generate configure
and associated files.
Run:
./autogen.sh
This will also call ./configure
after it has been generated. Then run:
make
Release tarballs will come bundled with ./configure
already, hence:
./configure && make
As with most things, if the default options ./configure
chooses isn't
appropriate for your needs, see ./configure --help
for appropriate options.