GPL Compatibility

• Compatibility is a function of two licenses:
  

  A license P is compatible with a license Q if works licensed under P can be distributed under the terms of Q

  
  
• A license is compatible with the GPL if it has no rules which are not also in the GPL
  • New versions of the BSD license are compatible with the GPL
  • No version of the Apache license is compatible with the GPL
    
• or via an explicit conversion clause
  • The LGPL is compatible due to section 3
    • "You may opt to apply the terms of the ordinary GNU General Public License instead of this License to a given copy of the Library."
      

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