Bug#912413: mark symbols as optional not seen when building with -O3

[Matthias Klose]

Package: src:libsavitar
Version: 3.3.0-2
Tags: patch

mark symbols as optional not seen when building with -O3.

patch at
http://launchpadlibrarian.net/395422172/libsavitar_3.3.0-2build1_3.3.0-2ubuntu1.diff.gz