[CMake] FIND_PACKAGE REQUIRED bug

[Jan Woetzel]

The REQUIRED flag checking in
FIND_PACKAGE(Foo REQUIRED)
is not checking the result of FOO_FOUND anymore.

See bug report 3379:

http://www.cmake.org/Bug/bug.php?op=show&bugid=3379

Jan.

-- 

  Dipl.-Ing. Jan Woetzel
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  University of Kiel
  Institute of Computer Science and Applied Mathematics
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  24098 Kiel/Germany
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