cmake HAVE_BSWAP_32 examples

Kitware/VTK ThirdParty/lzma/vtklzma/CMakeLists.txt :28 

check_symbol_exists(HAVE_BSWAP_32 "byteswap.h" bswap_32)

hatari/hatari CMakeLists.txt :227 

check_symbol_exists(bswap_32 "byteswap.h" HAVE_BSWAP_32)