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include(CMakePushCheckState)
set(CMAKE_REQUIRED_DEFINITIONS defs1 )
cmake_push_check_state()
set(CMAKE_REQUIRED_DEFINITIONS defs2)
cmake_push_check_state()
set(CMAKE_REQUIRED_DEFINITIONS defs3)
cmake_pop_check_state()
if (NOT "${CMAKE_REQUIRED_DEFINITIONS}" STREQUAL "defs2")
set(fatal TRUE)
message("ERROR: "CMAKE_REQUIRED_DEFINITIONS is \"${CMAKE_REQUIRED_DEFINITIONS}\" (expected \"defs2\")" )
endif()
cmake_pop_check_state()
if (NOT "${CMAKE_REQUIRED_DEFINITIONS}" STREQUAL "defs1")
set(fatal TRUE)
message("ERROR: "CMAKE_REQUIRED_DEFINITIONS is \"${CMAKE_REQUIRED_DEFINITIONS}\" (expected \"defs1\")" )
endif()
if(fatal)
message(FATAL_ERROR "cmake_push_check_state() test failed")
endif()
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