[make] Only rebuild test if libraries change. A bit of hack-ish implementation.
[make] Only rebuild test if libraries change. A bit of hack-ish implementation.

mit-carbon/Graphite,fhijaz/Graphite,mit-carbon/Graphite-Cycle-Level,mit-carbon/Graphite,8l/Graphite,mit-carbon/Graphite-Cycle-Level,fhijaz/Graphite,8l/Graphite,8l/Graphite,mit-carbon/Graphite-Cycle-Level,mit-carbon/Graphite,8l/Graphite,mit-carbon/Graphite,victorisildur/Graphite,fhijaz/Graphite,nkawahara/Graphite,victorisildur/Graphite,victorisildur/Graphite,victorisildur/Graphite,fhijaz/Graphite,nkawahara/Graphite,mit-carbon/Graphite-Cycle-Level,nkawahara/Graphite,nkawahara/Graphite