Thank you for taking the time to report this bug and helping to make Ubuntu better. I can confirm that the file __control_slicot_functions__.oct is indeed missing from the octave-control package in Ubuntu 14.10. This has been fixed with octave 3.8.2 and octave-control 2.6.6 in the 15.04 development archive.
I believe a fix for this should be suitable for an SRU, since it is fixed by simply rebuilding the octave-control source package. The build log for the package shows that there was some kind of temporary link problem against the libgfortran library at the time.
Thank you for taking the time to report this bug and helping to make Ubuntu better. I can confirm that the file __control_ slicot_ functions_ _.oct is indeed missing from the octave-control package in Ubuntu 14.10. This has been fixed with octave 3.8.2 and octave-control 2.6.6 in the 15.04 development archive.
I believe a fix for this should be suitable for an SRU, since it is fixed by simply rebuilding the octave-control source package. The build log for the package shows that there was some kind of temporary link problem against the libgfortran library at the time.