====== Sdílené knihovny ======

  * PIC je Position Independent Code
    * u x86 arch dostupné
    * u x86_64 shared libs vyžadováno!!
      * http://stackoverflow.com/questions/7865059/why-does-gcc-force-pic-for-x64-shared-libs
      * jde o to, ze pro 64 bit už nestačí ty 32bit relativní adresy..

  * http://eli.thegreenplace.net/2011/11/03/position-independent-code-pic-in-shared-libraries/
    * co je to PIC
  * https://www.technovelty.org/c/position-independent-code-and-x86-64-libraries.html
    * co je PIC
  * http://eli.thegreenplace.net/2011/08/25/load-time-relocation-of-shared-libraries/
    * co je Load-time relocation