The festival package uses quilt to maintain local changes to the festival
distribution.  The Debian-specific patches are maintained in the debian/patches/
directory.

To apply all the patches, preparing the source for building, use:
  debian/rules patch

To revert the patches, preparing to build a source package, use:
  debian/rules unpatch

You do not need to manually execute these targets when building the package;
they are part of the debian/rules target chain.

For more information on the quilt integration with Debian packages, as well as
editing, adding or removing patches, please see the quilt documentation; in
recent versions of the Debian package of quilt, Please sees:
 /usr/share/doc/quilt/README.source
