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enable_language(CXX)
if(NOT CMAKE_CXX_BYTE_ORDER MATCHES "^(BIG_ENDIAN|LITTLE_ENDIAN)$")
if(CMAKE_OSX_ARCHITECTURES MATCHES ";ppc|ppc;")
return()
endif()
message(FATAL_ERROR "CMAKE_CXX_BYTE_ORDER has unexpected value '${CMAKE_CXX_BYTE_ORDER}'")
endif()
include(TestBigEndian)
test_big_endian(IS_BIG_ENDIAN)
if(IS_BIG_ENDIAN AND NOT CMAKE_CXX_BYTE_ORDER STREQUAL "BIG_ENDIAN")
message(FATAL_ERROR "test_big_endian result does not match ABI result")
endif()
# Test legacy check.
set(byte_order "${CMAKE_CXX_BYTE_ORDER}")
unset(CMAKE_CXX_BYTE_ORDER)
include(TestBigEndian)
test_big_endian(IS_BIG)
if(IS_BIG AND NOT byte_order STREQUAL "BIG_ENDIAN")
message(FATAL_ERROR "test_big_endian result does not match ABI result")
endif()
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