anchor.diff:  This will be used to create a static library with the name libhello_library.a with
   the sources from the +library_SOURCES+ variable.
   
  -[[linking-library]]
  -Linking a Library
  -^^^^^^^^^^^^^^^^^
  +## Linking a Library
   
   When creating an executable that will use your library you must tell the compiler
   about the library. This can be done using the +target_link_library()+ function.
  
positive.code: = Static Library
  
  :toc:
  :toc-placement!:
  
  toc::[]
  
  
  [[intro]]
  Introduction
  ------------
  
  Shows a hello world example which first creates and links a static library
  
  
negative.code: ```
  
  
  # Building the Example
  
  [source,bash]
  ----
  