cmake HAVE_BIG_ENDIAN examples

cvet/fonline ThirdParty/LibreSSL/CMakeLists.txt :150 

TEST_BIG_ENDIAN(HAVE_BIG_ENDIAN)

cvet/fonline ThirdParty/LibreSSL/CMakeLists.txt :152 

add_definitions(-DHAVE_BIG_ENDIAN)

reverbrain/eblob CMakeLists.txt :92 

test_big_endian(HAVE_BIG_ENDIAN)