SVN_UNALIGNED_ACCESS_IS_OK
# if defined(_M_IX86) || defined(i386) \
     || defined(_M_X64) || defined(__x86_64) \
     || defined(__powerpc__) || defined(__ppc__)
#  define SVN_UNALIGNED_ACCESS_IS_OK 1
# else
#  define SVN_UNALIGNED_ACCESS_IS_OK 0
# endif
#endif