[DRE-maint] Bug#798434: ruby-sigar misbuilt with GCC 5

[Matthias Klose]

Package: ruby-sigar
Version: 0.7.2-3.1
Severity: serious
Tags: sid stretch

rebuilding ruby-sigar with GCC 5 leaves some symbols undefined, caused by the
c99 inline semantics. check with

objdump -T /usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.1.0/sigar.so |grep
sigar_skip_token

patch at
http://launchpadlibrarian.net/216747641/ruby-sigar_0.7.2-3.1build2_0.7.2-3.1ubuntu1.diff.gz