Bruno Postle released a source code tarball for autopano-SIFT-C.
Autopano-SIFT-C is one of the control point generators that can be plugged into Hugin to help aligning images.
To use it with Hugin install it on your computer and set the following parameters:
Parameters: –maxmatches %p %o %s
Parameters: –maxmatches %p –projection %f,%v %o %i
To install it you will most likely have to build it from source. Major Linux distribution such as Fedora and Debian do not carry binaries of Autopano-SIFT-C because it is tainted by a patent in some jurisdictions.
Hugin does not yet have its own, patent-free control points generator. Some building blocks have been contributed during Google Summer of Code 2007 and 2008, but more work needs to be done.