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# Locate and configure the Google Test libraries.
#
# Defines the following variable:
#
#   GTEST_FOUND - Found the Google Test libraries
#   GTEST_INCLUDE_DIRS - The directories needed on the include paths
#   GTEST_LIBRARIES - The libraries to link to test executables
#   GTEST_MAIN_LIBRARIES - The libraries to link for automatic main() provision
#
#   Copyright 2008 Chandler Carruth
#
#   Licensed under the Apache License, Version 2.0 (the "License"); you may not
#   use this file except in compliance with the License.  You may obtain a copy
#   of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
#   License for the specific language governing permissions and limitations
#   under the License.

if(GTEST_INCLUDE_DIRS AND GTEST_LIBRARIES AND GTEST_MAIN_LIBRARIES)
  set(GTEST_FOUND true)
else(GTEST_INCLUDE_DIRS AND GTEST_LIBRARIES AND GTEST_MAIN_LIBRARIES)
  set(GTEST_PREFIX "" CACHE PATH "Installation prefix for Google Test")
  if(GTEST_PREFIX)
    find_path(_GTEST_INCLUDE_DIR "gtest/gtest.h"
      PATHS "${GTEST_PREFIX}/include"
      NO_DEFAULT_PATH)
    find_library(_GTEST_LIBRARY gtest
      PATHS "${GTEST_PREFIX}/lib"
      NO_DEFAULT_PATH)
    find_library(_GTEST_MAIN_LIBRARY gtest_main
      PATHS "${GTEST_PREFIX}/lib"
      NO_DEFAULT_PATH)
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    if ( _GTEST_LIBRARY )
      get_filename_component(_GTEST_LIBRARY_DIR ${_GTEST_LIBRARY} PATH CACHE )
    endif()
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  else(GTEST_PREFIX)
    find_path(_GTEST_INCLUDE_DIR "gtest/gtest.h"
      PATHS
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      ~/sw/gtest-1.7.0/include
      ~/sw/gtest/include     
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      /ACG/acgdev/gcc-4.7-x86_64/gtest/include
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      /opt/local/include
      /usr/local/include
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      /usr/include
      "C:/libs/win32/gtest/include"
      NO_DEFAULT_PATH )
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    find_library(_GTEST_LIBRARY gtest
      PATHS
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      ~/sw/gtest-1.7.0/lib
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      ~/sw/gtest/lib
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      /ACG/acgdev/gcc-4.7-x86_64/gtest/lib
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      /opt/local/lib
      /usr/local/lib
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      /usr/lib
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      "C:/libs/win32/gtest/lib"
      NO_DEFAULT_PATH )
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    find_library(_GTEST_MAIN_LIBRARY gtest_main
      PATHS
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      ~/sw/gtest-1.7.0/lib
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      ~/sw/gtest/lib
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      /ACG/acgdev/gcc-4.7-x86_64/gtest/lib
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      /opt/local/lib
      /usr/local/lib
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      /usr/lib
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      "C:/libs/win32/gtest/lib"
      NO_DEFAULT_PATH )
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     if ( _GTEST_LIBRARY )
        get_filename_component(_GTEST_LIBRARY_DIR ${_GTEST_LIBRARY} PATH CACHE )
     endif()

  endif(GTEST_PREFIX)
  if(_GTEST_INCLUDE_DIR AND _GTEST_LIBRARY AND _GTEST_MAIN_LIBRARY)
    set(GTEST_FOUND true)
    set(GTEST_INCLUDE_DIRS ${_GTEST_INCLUDE_DIR} CACHE PATH
      "Include directories for Google Test framework")
	  
	if ( NOT WIN32 ) 
      set(GTEST_LIBRARIES ${_GTEST_LIBRARY} CACHE FILEPATH
        "Libraries to link for Google Test framework")
      set(GTEST_MAIN_LIBRARIES ${_GTEST_MAIN_LIBRARY} CACHE FILEPATH
        "Libraries to link for Google Test automatic main() definition")
	else()
	  set(GTEST_LIBRARIES "optimized;gtest;debug;gtestd" CACHE FILEPATH
        "Libraries to link for Google Test framework")
      set(GTEST_MAIN_LIBRARIES "optimized;gtest_main;debug;gtest_maind" CACHE FILEPATH
        "Libraries to link for Google Test automatic main() definition")
	endif()
	
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	# Macro required to use google test with vs2012
	if ( CMAKE_GENERATOR MATCHES "^Visual Studio 11.*"  )
	   add_definitions(-D_VARIADIC_MAX=10)
	endif()

	
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    set(GTEST_LIBRARY_DIR ${_GTEST_LIBRARY_DIR} CACHE FILEPATH
      "Library dir containing Google Test libraries")
    mark_as_advanced(GTEST_INCLUDE_DIRS GTEST_LIBRARIES GTEST_MAIN_LIBRARIES GTEST_LIBRARY_DIR )
    if(NOT GoogleTest_FIND_QUIETLY)
      message(STATUS "Found Google Test: ${GTEST_LIBRARIES}")
    endif(NOT GoogleTest_FIND_QUIETLY)
  else(_GTEST_INCLUDE_DIR AND _GTEST_LIBRARY AND _GTEST_MAIN_LIBRARY)
    if(GoogleTest_FIND_REQUIRED)
      message(FATAL_ERROR "Could not find the Google Test framework")
    endif(GoogleTest_FIND_REQUIRED)
  endif(_GTEST_INCLUDE_DIR AND _GTEST_LIBRARY AND _GTEST_MAIN_LIBRARY)
endif(GTEST_INCLUDE_DIRS AND GTEST_LIBRARIES AND GTEST_MAIN_LIBRARIES)