diff options
| -rw-r--r-- | include/ruby/io/buffer.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/ruby/io/buffer.h b/include/ruby/io/buffer.h index 737fafe518..f2ab8f1195 100644 --- a/include/ruby/io/buffer.h +++ b/include/ruby/io/buffer.h @@ -56,13 +56,13 @@ enum rb_io_buffer_endian { RB_IO_BUFFER_LITTLE_ENDIAN = 4, RB_IO_BUFFER_BIG_ENDIAN = 8, -#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN, -#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN, -#elif REG_DWORD == REG_DWORD_LITTLE_ENDIAN +#elif defined(REG_DWORD) && REG_DWORD == REG_DWORD_LITTLE_ENDIAN RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN, -#elif REG_DWORD == REG_DWORD_BIG_ENDIAN +#elif defined(REG_DWORD) && REG_DWORD == REG_DWORD_BIG_ENDIAN RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN, #endif |