The error comes from the build dependency on swig. Switching to swig2.0 resolves the issue; a fix has been committed for the Debian package.
** Changed in: libfann (Ubuntu) Status: New => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/770839 Title: libfann version 2.1.0~beta~dfsg-2build1 failed to build on amd64 with GCC-4.6/oneiric -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs