As a special exception, the copyright holders of the Cygwin library grant you
additional permission to link libcygwin.a, crt0.o, and gcrt0.o with independent
modules to produce an executable, and to convey the resulting executable under
terms of your choice, without any need to comply with the conditions of LGPLv3
section 4. An independent module is a module which is not itself based on the
Cygwin library.