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
