Bug#902363: fix build with ld --as-needed

[Matthias Klose]

Package: src:libfiu
Version: 0.96-3
Severity: important
Tags: patch sid buster

Fix the build with ld --as-needed.

patch at
http://launchpadlibrarian.net/375907137/libfiu_0.96-3_0.96-3ubuntu1.diff.gz