It is possible to compile native Windows cadtools executables using Cygwin. If the cadtools configuration script detects a Cygwin environment, it will automatically include the -mno-cygwin compiler flag, such that the resulting libraries do not depend on the Cygwin libraries.

1. cadtools depends on the Agar and FreeSG libraries. Follow the steps described in the Agar installation guide and FreeSG installation guide.
2. At this point, you should be ready to compile and install cadtools:

     $ tar -xzf cadtools-*.tar.gz
     $ cd cadtools-*
     $ ./configure && make && make install