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CMakeFindPackageMode
This file is executed by cmake when invoked with –find-package. It expects that the following variables are set using -D:
NAME- name of the package
 COMPILER_ID- the CMake compiler ID for which the result is, i.e. GNU/Intel/Clang/MSVC, etc.
 LANGUAGE- language for which the result will be used, i.e. C/CXX/Fortan/ASM
 MODE- 
    
EXIST- only check for existence of the given package
 COMPILE- print the flags needed for compiling an object file which uses the given package
 LINK- print the flags needed for linking when using the given package
 
 QUIET- if TRUE, don’t print anything
 
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Licensed under the BSD 3-clause License.
 https://cmake.org/cmake/help/v3.6/module/CMakeFindPackageMode.html