__x86_64__        584 src/dps8/uthash.h #  if (defined(__i386__) || defined(__x86_64__)  || defined(_M_IX86))
__x86_64__       4791 src/simh/scp.c #if defined(_M_X64) || defined(_M_AMD64) || defined(__amd64__) || defined(__x86_64__) || defined(__AMD64)