gtest.cmake

# Google test setup ref: 
# https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project
configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)

# Add googletest directly to our build. This defines
# the gtest and gtest_main targets.
set(GTEST_INCLUDE_DIR 
    "${CMAKE_BINARY_DIR}/googletest-src/googletest/include" CACHE STRING "" )

execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
  RESULT_VARIABLE result 
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
if(result)
  message(FATAL_ERROR "CMake step for googletest failed: ${result}")
endif()

execute_process(COMMAND ${CMAKE_COMMAND} --build .
  RESULT_VARIABLE result
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
if(result)
  message(FATAL_ERROR "Build step for googletest failed: ${result}")
endif()

# Prevent overriding the parent project's compiler/linker
# settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

# Add googletest directly to our build. This defines
# the gtest and gtest_main targets.
add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
                 ${CMAKE_BINARY_DIR}/googletest-build
                 EXCLUDE_FROM_ALL)