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"knihovny" jako makra
  * [[github>hanson/uthash]]
    * [[http://jehiah.cz/a/uthash]]
  * [[sf>sglib]]
  * [[github>swenson/sort]]
  * [[github>swenson/vector.h]]
  * piumartha/tree
  * [[http://attractivechaos.wordpress.com/programs/]]