The site that normally hosts the gmap/gsnap source code has gone away:

http://research-pub.gene.com

Does anyone know if this intentional or when it will be back?
This has now been resolved and http://research-pub.gene.com/gmap/src/ is available again.

For future reference raising an issue via this URL under the "Website Usability" seemed to get this to the correct people.

https://www.gene.com/contact-us/email-us